./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows 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_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/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_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-8393723 [2022-11-18 21:06:06,700 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:06:06,702 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:06:06,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:06:06,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:06:06,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:06:06,736 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:06:06,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:06:06,740 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:06:06,741 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:06:06,742 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:06:06,743 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:06:06,744 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:06:06,745 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:06:06,746 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:06:06,748 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:06:06,749 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:06:06,750 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:06:06,752 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:06:06,754 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:06:06,756 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:06:06,757 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:06:06,758 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:06:06,759 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:06:06,764 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:06:06,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:06:06,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:06:06,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:06:06,766 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:06:06,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:06:06,768 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:06:06,769 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:06:06,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:06:06,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:06:06,773 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:06:06,773 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:06:06,774 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:06:06,775 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:06:06,775 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:06:06,776 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:06:06,777 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:06:06,778 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-18 21:06:06,802 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:06:06,802 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:06:06,803 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:06:06,803 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:06:06,804 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:06:06,804 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:06:06,805 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:06:06,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:06:06,805 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:06:06,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:06:06,806 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-18 21:06:06,806 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-18 21:06:06,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:06:06,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-18 21:06:06,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:06:06,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:06:06,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:06:06,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:06:06,808 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-18 21:06:06,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-18 21:06:06,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:06:06,809 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:06:06,809 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:06:06,809 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:06:06,809 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:06:06,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:06:06,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:06,810 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:06:06,810 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:06:06,811 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:06:06,811 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:06:06,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:06:06,811 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:06:06,812 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:06:06,812 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:06:06,812 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_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2cc7c06873dba45d738e292126bc5c4eeb8fbe341f5dfa6f9006be5a39c2b683 [2022-11-18 21:06:07,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:06:07,125 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:06:07,128 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:06:07,129 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:06:07,130 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:06:07,132 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2022-11-18 21:06:07,227 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/data/a794b3a32/20e7496097024ecd9453e6925dd4b083/FLAG9b5cca70a [2022-11-18 21:06:07,898 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:06:07,898 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c [2022-11-18 21:06:07,911 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/data/a794b3a32/20e7496097024ecd9453e6925dd4b083/FLAG9b5cca70a [2022-11-18 21:06:08,199 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/data/a794b3a32/20e7496097024ecd9453e6925dd4b083 [2022-11-18 21:06:08,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:06:08,202 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:06:08,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:08,205 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:06:08,211 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:06:08,212 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,213 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ab8e71e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08, skipping insertion in model container [2022-11-18 21:06:08,213 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:06:08,274 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:06:08,491 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_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[816,829] [2022-11-18 21:06:08,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:08,563 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:06:08,574 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_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/sv-benchmarks/c/bitvector/soft_float_1-2.c.cil.c[816,829] [2022-11-18 21:06:08,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:06:08,631 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:06:08,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08 WrapperNode [2022-11-18 21:06:08,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:06:08,632 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:08,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:06:08,633 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:06:08,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,661 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,709 INFO L138 Inliner]: procedures = 18, calls = 19, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 204 [2022-11-18 21:06:08,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:06:08,711 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:06:08,711 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:06:08,711 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:06:08,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,740 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,741 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,756 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,761 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:06:08,762 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:06:08,762 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:06:08,762 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:06:08,767 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (1/1) ... [2022-11-18 21:06:08,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:06:08,805 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:06:08,819 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:06:08,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:06:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-18 21:06:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-18 21:06:08,877 INFO L130 BoogieDeclarations]: Found specification of procedure base2flt [2022-11-18 21:06:08,878 INFO L138 BoogieDeclarations]: Found implementation of procedure base2flt [2022-11-18 21:06:08,878 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:06:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:06:08,880 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-11-18 21:06:08,880 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-11-18 21:06:09,005 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:06:09,007 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:06:09,682 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:06:09,697 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:06:09,698 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-11-18 21:06:09,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:09 BoogieIcfgContainer [2022-11-18 21:06:09,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:06:09,703 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:06:09,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:06:09,712 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:06:09,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:06:08" (1/3) ... [2022-11-18 21:06:09,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd8ddba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:09, skipping insertion in model container [2022-11-18 21:06:09,727 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:06:08" (2/3) ... [2022-11-18 21:06:09,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dd8ddba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:06:09, skipping insertion in model container [2022-11-18 21:06:09,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:09" (3/3) ... [2022-11-18 21:06:09,729 INFO L112 eAbstractionObserver]: Analyzing ICFG soft_float_1-2.c.cil.c [2022-11-18 21:06:09,759 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:06:09,760 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2022-11-18 21:06:09,850 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:06:09,857 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;@7cc9ea19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:06:09,858 INFO L358 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2022-11-18 21:06:09,863 INFO L276 IsEmpty]: Start isEmpty. Operand has 126 states, 95 states have (on average 1.7473684210526317) internal successors, (166), 117 states have internal predecessors, (166), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2022-11-18 21:06:09,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 21:06:09,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:09,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:09,875 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:09,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:09,882 INFO L85 PathProgramCache]: Analyzing trace with hash 499719418, now seen corresponding path program 1 times [2022-11-18 21:06:09,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:09,893 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108627989] [2022-11-18 21:06:09,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:09,899 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:10,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:10,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:10,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108627989] [2022-11-18 21:06:10,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108627989] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:10,102 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:10,102 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:10,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654342952] [2022-11-18 21:06:10,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:10,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-18 21:06:10,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:10,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-18 21:06:10,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:06:10,175 INFO L87 Difference]: Start difference. First operand has 126 states, 95 states have (on average 1.7473684210526317) internal successors, (166), 117 states have internal predecessors, (166), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:10,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:10,252 INFO L93 Difference]: Finished difference Result 247 states and 368 transitions. [2022-11-18 21:06:10,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-18 21:06:10,254 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 21:06:10,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:10,265 INFO L225 Difference]: With dead ends: 247 [2022-11-18 21:06:10,275 INFO L226 Difference]: Without dead ends: 93 [2022-11-18 21:06:10,279 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-18 21:06:10,283 INFO L413 NwaCegarLoop]: 172 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, 172 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:10,284 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 172 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:06:10,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93 states. [2022-11-18 21:06:10,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93 to 93. [2022-11-18 21:06:10,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93 states, 68 states have (on average 1.6029411764705883) internal successors, (109), 85 states have internal predecessors, (109), 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 21:06:10,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 119 transitions. [2022-11-18 21:06:10,334 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 119 transitions. Word has length 9 [2022-11-18 21:06:10,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:10,335 INFO L495 AbstractCegarLoop]: Abstraction has 93 states and 119 transitions. [2022-11-18 21:06:10,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:10,336 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 119 transitions. [2022-11-18 21:06:10,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 21:06:10,337 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:10,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:10,338 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:06:10,338 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:10,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:10,339 INFO L85 PathProgramCache]: Analyzing trace with hash 498778080, now seen corresponding path program 1 times [2022-11-18 21:06:10,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:10,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2102785572] [2022-11-18 21:06:10,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:10,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:10,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:10,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:10,441 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:10,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2102785572] [2022-11-18 21:06:10,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2102785572] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:10,442 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:10,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-18 21:06:10,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295722] [2022-11-18 21:06:10,443 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:10,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:06:10,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:10,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:06:10,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:06:10,446 INFO L87 Difference]: Start difference. First operand 93 states and 119 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:10,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:10,561 INFO L93 Difference]: Finished difference Result 234 states and 306 transitions. [2022-11-18 21:06:10,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-18 21:06:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-18 21:06:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:10,571 INFO L225 Difference]: With dead ends: 234 [2022-11-18 21:06:10,571 INFO L226 Difference]: Without dead ends: 144 [2022-11-18 21:06:10,573 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:10,574 INFO L413 NwaCegarLoop]: 108 mSDtfsCounter, 78 mSDsluCounter, 209 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:10,575 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 317 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:06:10,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2022-11-18 21:06:10,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 132. [2022-11-18 21:06:10,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 106 states have (on average 1.5849056603773586) internal successors, (168), 123 states have internal predecessors, (168), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 21:06:10,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 178 transitions. [2022-11-18 21:06:10,606 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 178 transitions. Word has length 9 [2022-11-18 21:06:10,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:10,607 INFO L495 AbstractCegarLoop]: Abstraction has 132 states and 178 transitions. [2022-11-18 21:06:10,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:10,607 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 178 transitions. [2022-11-18 21:06:10,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 21:06:10,608 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:10,608 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:10,609 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:06:10,609 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:10,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:10,610 INFO L85 PathProgramCache]: Analyzing trace with hash 254243041, now seen corresponding path program 1 times [2022-11-18 21:06:10,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:10,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352299560] [2022-11-18 21:06:10,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:10,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:10,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:10,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:10,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352299560] [2022-11-18 21:06:10,816 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352299560] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:10,818 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:10,818 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:06:10,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026372915] [2022-11-18 21:06:10,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:10,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:06:10,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:10,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:06:10,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:06:10,821 INFO L87 Difference]: Start difference. First operand 132 states and 178 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:10,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:10,935 INFO L93 Difference]: Finished difference Result 238 states and 313 transitions. [2022-11-18 21:06:10,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:06:10,936 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-18 21:06:10,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:10,938 INFO L225 Difference]: With dead ends: 238 [2022-11-18 21:06:10,938 INFO L226 Difference]: Without dead ends: 111 [2022-11-18 21:06:10,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:10,957 INFO L413 NwaCegarLoop]: 117 mSDtfsCounter, 19 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 335 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:10,958 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 335 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:06:10,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-18 21:06:10,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 103. [2022-11-18 21:06:10,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 77 states have (on average 1.5844155844155845) internal successors, (122), 94 states have internal predecessors, (122), 5 states have call successors, (5), 3 states have call predecessors, (5), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 21:06:10,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 132 transitions. [2022-11-18 21:06:10,970 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 132 transitions. Word has length 12 [2022-11-18 21:06:10,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:10,970 INFO L495 AbstractCegarLoop]: Abstraction has 103 states and 132 transitions. [2022-11-18 21:06:10,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:06:10,979 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 132 transitions. [2022-11-18 21:06:10,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-18 21:06:10,981 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:10,981 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:10,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-18 21:06:10,982 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:10,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:10,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1330416868, now seen corresponding path program 1 times [2022-11-18 21:06:10,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:10,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969442234] [2022-11-18 21:06:10,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:10,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:10,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:11,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:11,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:11,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:11,138 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:11,138 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969442234] [2022-11-18 21:06:11,139 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969442234] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:11,139 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:11,140 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:06:11,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1210662769] [2022-11-18 21:06:11,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:11,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:06:11,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:11,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:06:11,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:11,146 INFO L87 Difference]: Start difference. First operand 103 states and 132 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:06:11,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:11,315 INFO L93 Difference]: Finished difference Result 159 states and 210 transitions. [2022-11-18 21:06:11,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:06:11,316 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2022-11-18 21:06:11,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:11,319 INFO L225 Difference]: With dead ends: 159 [2022-11-18 21:06:11,320 INFO L226 Difference]: Without dead ends: 156 [2022-11-18 21:06:11,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:06:11,332 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 160 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:11,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 321 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:06:11,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-18 21:06:11,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 138. [2022-11-18 21:06:11,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138 states, 112 states have (on average 1.5982142857142858) internal successors, (179), 128 states have internal predecessors, (179), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 21:06:11,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138 states to 138 states and 189 transitions. [2022-11-18 21:06:11,355 INFO L78 Accepts]: Start accepts. Automaton has 138 states and 189 transitions. Word has length 16 [2022-11-18 21:06:11,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:11,355 INFO L495 AbstractCegarLoop]: Abstraction has 138 states and 189 transitions. [2022-11-18 21:06:11,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:06:11,357 INFO L276 IsEmpty]: Start isEmpty. Operand 138 states and 189 transitions. [2022-11-18 21:06:11,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-18 21:06:11,359 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:11,359 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:11,360 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-18 21:06:11,360 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:11,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:11,361 INFO L85 PathProgramCache]: Analyzing trace with hash 1706750109, now seen corresponding path program 1 times [2022-11-18 21:06:11,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:11,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979943663] [2022-11-18 21:06:11,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:11,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:11,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:11,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:11,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:11,440 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-18 21:06:11,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:11,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979943663] [2022-11-18 21:06:11,444 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979943663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:11,445 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:11,445 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-18 21:06:11,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [544574049] [2022-11-18 21:06:11,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:11,447 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-18 21:06:11,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:11,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-18 21:06:11,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:11,449 INFO L87 Difference]: Start difference. First operand 138 states and 189 transitions. Second operand has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:06:11,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:11,493 INFO L93 Difference]: Finished difference Result 144 states and 195 transitions. [2022-11-18 21:06:11,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-18 21:06:11,494 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 17 [2022-11-18 21:06:11,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:11,495 INFO L225 Difference]: With dead ends: 144 [2022-11-18 21:06:11,496 INFO L226 Difference]: Without dead ends: 143 [2022-11-18 21:06:11,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-18 21:06:11,507 INFO L413 NwaCegarLoop]: 118 mSDtfsCounter, 3 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 214 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:11,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 214 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:06:11,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2022-11-18 21:06:11,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 137. [2022-11-18 21:06:11,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 112 states have (on average 1.5803571428571428) internal successors, (177), 127 states have internal predecessors, (177), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 21:06:11,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 187 transitions. [2022-11-18 21:06:11,533 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 187 transitions. Word has length 17 [2022-11-18 21:06:11,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:11,534 INFO L495 AbstractCegarLoop]: Abstraction has 137 states and 187 transitions. [2022-11-18 21:06:11,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.5) internal successors, (13), 3 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:06:11,539 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 187 transitions. [2022-11-18 21:06:11,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-18 21:06:11,541 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:11,541 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:11,542 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-18 21:06:11,542 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:11,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:11,543 INFO L85 PathProgramCache]: Analyzing trace with hash -2037873340, now seen corresponding path program 1 times [2022-11-18 21:06:11,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:11,543 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592169754] [2022-11-18 21:06:11,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:11,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-18 21:06:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:06:11,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:06:11,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:06:11,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592169754] [2022-11-18 21:06:11,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592169754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:06:11,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:06:11,648 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:06:11,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440218770] [2022-11-18 21:06:11,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:06:11,649 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-18 21:06:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:06:11,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-18 21:06:11,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:06:11,650 INFO L87 Difference]: Start difference. First operand 137 states and 187 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:06:11,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:06:11,769 INFO L93 Difference]: Finished difference Result 167 states and 221 transitions. [2022-11-18 21:06:11,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-18 21:06:11,770 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2022-11-18 21:06:11,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:06:11,771 INFO L225 Difference]: With dead ends: 167 [2022-11-18 21:06:11,771 INFO L226 Difference]: Without dead ends: 164 [2022-11-18 21:06:11,772 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-18 21:06:11,773 INFO L413 NwaCegarLoop]: 96 mSDtfsCounter, 148 mSDsluCounter, 234 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 81 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:06:11,773 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 330 Invalid, 81 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 21:06:11,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2022-11-18 21:06:11,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 147. [2022-11-18 21:06:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 122 states have (on average 1.5573770491803278) internal successors, (190), 137 states have internal predecessors, (190), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-11-18 21:06:11,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 200 transitions. [2022-11-18 21:06:11,787 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 200 transitions. Word has length 18 [2022-11-18 21:06:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:06:11,787 INFO L495 AbstractCegarLoop]: Abstraction has 147 states and 200 transitions. [2022-11-18 21:06:11,788 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-18 21:06:11,788 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 200 transitions. [2022-11-18 21:06:11,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-18 21:06:11,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:06:11,789 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:11,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-18 21:06:11,789 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2022-11-18 21:06:11,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:06:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash 1252598821, now seen corresponding path program 1 times [2022-11-18 21:06:11,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:06:11,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235676971] [2022-11-18 21:06:11,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:06:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:06:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:06:11,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:06:11,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:06:11,829 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:06:11,829 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:06:11,830 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location base2fltErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 20 remaining) [2022-11-18 21:06:11,832 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 20 remaining) [2022-11-18 21:06:11,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 20 remaining) [2022-11-18 21:06:11,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 20 remaining) [2022-11-18 21:06:11,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 20 remaining) [2022-11-18 21:06:11,833 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 20 remaining) [2022-11-18 21:06:11,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 20 remaining) [2022-11-18 21:06:11,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location base2fltErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 20 remaining) [2022-11-18 21:06:11,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 20 remaining) [2022-11-18 21:06:11,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 20 remaining) [2022-11-18 21:06:11,834 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 20 remaining) [2022-11-18 21:06:11,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 20 remaining) [2022-11-18 21:06:11,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 20 remaining) [2022-11-18 21:06:11,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 20 remaining) [2022-11-18 21:06:11,835 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 20 remaining) [2022-11-18 21:06:11,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 20 remaining) [2022-11-18 21:06:11,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 20 remaining) [2022-11-18 21:06:11,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 20 remaining) [2022-11-18 21:06:11,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 20 remaining) [2022-11-18 21:06:11,836 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 20 remaining) [2022-11-18 21:06:11,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-18 21:06:11,840 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:06:11,844 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:06:11,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:06:11 BoogieIcfgContainer [2022-11-18 21:06:11,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:06:11,872 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:06:11,872 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:06:11,872 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:06:11,873 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:06:09" (3/4) ... [2022-11-18 21:06:11,876 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:06:11,876 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:06:11,877 INFO L158 Benchmark]: Toolchain (without parser) took 3674.71ms. Allocated memory is still 132.1MB. Free memory was 94.2MB in the beginning and 85.4MB in the end (delta: 8.9MB). Peak memory consumption was 7.4MB. Max. memory is 16.1GB. [2022-11-18 21:06:11,877 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory was 111.7MB in the beginning and 111.5MB in the end (delta: 128.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:06:11,877 INFO L158 Benchmark]: CACSL2BoogieTranslator took 426.94ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 104.0MB in the end (delta: -10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 21:06:11,878 INFO L158 Benchmark]: Boogie Procedure Inliner took 77.65ms. Allocated memory is still 132.1MB. Free memory was 104.0MB in the beginning and 101.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 21:06:11,878 INFO L158 Benchmark]: Boogie Preprocessor took 50.25ms. Allocated memory is still 132.1MB. Free memory was 101.4MB in the beginning and 99.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:11,878 INFO L158 Benchmark]: RCFGBuilder took 939.02ms. Allocated memory is still 132.1MB. Free memory was 99.9MB in the beginning and 76.3MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 21:06:11,879 INFO L158 Benchmark]: TraceAbstraction took 2167.83ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 85.6MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:11,879 INFO L158 Benchmark]: Witness Printer took 4.42ms. Allocated memory is still 132.1MB. Free memory was 85.6MB in the beginning and 85.4MB in the end (delta: 229.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:06:11,881 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 132.1MB. Free memory was 111.7MB in the beginning and 111.5MB in the end (delta: 128.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 426.94ms. Allocated memory is still 132.1MB. Free memory was 94.0MB in the beginning and 104.0MB in the end (delta: -10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 77.65ms. Allocated memory is still 132.1MB. Free memory was 104.0MB in the beginning and 101.4MB in the end (delta: 2.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 50.25ms. Allocated memory is still 132.1MB. Free memory was 101.4MB in the beginning and 99.9MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 939.02ms. Allocated memory is still 132.1MB. Free memory was 99.9MB in the beginning and 76.3MB in the end (delta: 23.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 2167.83ms. Allocated memory is still 132.1MB. Free memory was 75.2MB in the beginning and 85.6MB in the end (delta: -10.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.42ms. Allocated memory is still 132.1MB. Free memory was 85.6MB in the beginning and 85.4MB in the end (delta: 229.6kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseComplement at line 80. Possible FailurePath: [L230] unsigned int a ; [L231] unsigned int ma = __VERIFIER_nondet_uint(); [L232] signed char ea = __VERIFIER_nondet_char(); [L233] unsigned int b ; [L234] unsigned int mb = __VERIFIER_nondet_uint(); [L235] signed char eb = __VERIFIER_nondet_char(); [L236] unsigned int r_add ; [L237] unsigned int zero ; [L238] int sa ; [L239] int sb ; [L240] int tmp ; [L241] int tmp___0 ; [L242] int tmp___1 ; [L243] int tmp___2 ; [L244] int tmp___3 ; [L245] int tmp___4 ; [L246] int tmp___5 ; [L247] int tmp___6 ; [L248] int tmp___7 ; [L249] int tmp___8 ; [L250] int tmp___9 ; [L251] int __retres23 ; VAL [ea=0, eb=0] [L255] CALL, EXPR base2flt(0, 0) VAL [\old(e)=0, \old(m)=0] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=0, e=0, m=0] [L33] COND TRUE ! m [L34] __retres4 = 0U VAL [\old(e)=0, \old(m)=0, __retres4=0, e=0, m=0] [L84] return (__retres4); VAL [\old(e)=0, \old(m)=0, \result=0, __retres4=0, e=0, m=0] [L255] RET, EXPR base2flt(0, 0) VAL [base2flt(0, 0)=0, ea=0, eb=0] [L255] zero = base2flt(0, 0) [L256] CALL base2flt(ma, ea) VAL [\old(e)=0, \old(m)=16777216] [L29] unsigned int res ; [L30] unsigned int __retres4 ; VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L33] COND FALSE !(! m) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L39] COND FALSE !(m < 1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L61] COND TRUE 1 VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L63] COND FALSE !(m >= 1U << 25U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=16777216] [L80] m = m & ~ (1U << 24U) VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] EXPR e + 128 VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] [L81] (e + 128) << 24U VAL [\old(e)=0, \old(m)=16777216, e=0, m=0] - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 81]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 113]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 119]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 137]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - UnprovableResult [Line: 145]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 126 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 2.0s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 418 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 408 mSDsluCounter, 1689 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 983 mSDsCounter, 39 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 232 IncrementalHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 39 mSolverCounterUnsat, 706 mSDtfsCounter, 232 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 33 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=6, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 61 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 75 ConstructedInterpolants, 0 QuantifiedInterpolants, 163 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 6/6 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 21:06:11,905 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/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 No suitable file found in config dir /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cee2c3ce-bda8-46ab-b0c9-e01d48221be9/bin/uautomizer-TMbwUNV5ro/config using search string *Overflow*32bit*_Bitvector*.epf No suitable settings file found using Overflow*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample