./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4f767659aef273937b209b166fb1e0efe89714175079fa1bd2cb01c19aa1ec81 --- 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 21:00:45,774 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:45,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:45,807 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:45,809 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:45,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:45,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:45,819 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:45,827 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:45,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:45,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:45,830 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:45,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:45,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:45,836 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:45,839 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:45,841 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:45,848 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:45,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:45,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:45,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:45,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:45,860 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:45,861 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:45,864 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:45,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:45,865 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:45,866 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:45,866 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:45,867 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:45,867 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:45,868 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:45,869 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:45,870 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:45,878 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:45,878 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:45,879 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:45,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:45,880 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:45,880 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:45,881 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:45,884 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 21:00:45,923 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:45,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:45,924 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:45,924 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:45,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:45,925 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:45,926 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:45,926 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:45,937 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:45,937 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:45,937 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:00:45,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:45,938 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:00:45,938 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:45,938 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:00:45,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:45,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:45,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:00:45,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:45,949 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:45,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:45,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:45,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:45,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:45,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:00:45,952 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:00:45,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:00:45,952 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:00:45,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:00:45,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:00:45,953 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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f767659aef273937b209b166fb1e0efe89714175079fa1bd2cb01c19aa1ec81 [2022-11-18 21:00:46,233 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:46,262 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:46,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:46,268 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:46,269 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:46,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2022-11-18 21:00:46,337 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/035970e81/de5d7e50fba24ea59a2989bb3fdcd581/FLAGb8c856611 [2022-11-18 21:00:46,862 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:46,863 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2022-11-18 21:00:46,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/035970e81/de5d7e50fba24ea59a2989bb3fdcd581/FLAGb8c856611 [2022-11-18 21:00:47,198 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/035970e81/de5d7e50fba24ea59a2989bb3fdcd581 [2022-11-18 21:00:47,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:47,205 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:47,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:47,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:47,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:47,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4edf6ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47, skipping insertion in model container [2022-11-18 21:00:47,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:47,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:47,458 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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1107,1120] [2022-11-18 21:00:47,517 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:47,521 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:47,532 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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1107,1120] [2022-11-18 21:00:47,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:47,583 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:47,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47 WrapperNode [2022-11-18 21:00:47,584 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:47,585 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:47,585 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:47,585 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:47,593 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,634 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 208 [2022-11-18 21:00:47,635 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:47,636 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:47,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:47,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:47,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,660 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,667 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,679 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:47,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:47,682 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:47,682 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:47,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (1/1) ... [2022-11-18 21:00:47,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:47,707 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:47,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:47,728 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:47,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:47,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:47,872 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:47,875 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:48,319 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:48,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:48,334 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:00:48,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:48 BoogieIcfgContainer [2022-11-18 21:00:48,338 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:48,341 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:48,341 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:48,346 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:48,346 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:47" (1/3) ... [2022-11-18 21:00:48,347 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e690b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:48, skipping insertion in model container [2022-11-18 21:00:48,348 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:47" (2/3) ... [2022-11-18 21:00:48,349 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75e690b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:48, skipping insertion in model container [2022-11-18 21:00:48,349 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:48" (3/3) ... [2022-11-18 21:00:48,352 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2022-11-18 21:00:48,376 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:48,377 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:00:48,452 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:48,463 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;@63dfd8b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:48,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:00:48,473 INFO L276 IsEmpty]: Start isEmpty. Operand has 38 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:48,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 21:00:48,480 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:48,481 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:48,482 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:48,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:48,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1809713074, now seen corresponding path program 1 times [2022-11-18 21:00:48,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:48,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997218250] [2022-11-18 21:00:48,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:48,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:48,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:48,959 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 21:00:48,960 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:48,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997218250] [2022-11-18 21:00:48,961 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997218250] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:48,961 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:48,961 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:48,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759467572] [2022-11-18 21:00:48,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:48,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:48,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:49,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:49,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:49,012 INFO L87 Difference]: Start difference. First operand has 38 states, 36 states have (on average 1.6111111111111112) internal successors, (58), 37 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:49,116 INFO L93 Difference]: Finished difference Result 103 states and 167 transitions. [2022-11-18 21:00:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:49,119 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-11-18 21:00:49,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:49,127 INFO L225 Difference]: With dead ends: 103 [2022-11-18 21:00:49,128 INFO L226 Difference]: Without dead ends: 67 [2022-11-18 21:00:49,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:00:49,134 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 132 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:49,135 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [132 Valid, 108 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:49,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2022-11-18 21:00:49,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 36. [2022-11-18 21:00:49,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.542857142857143) internal successors, (54), 35 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 54 transitions. [2022-11-18 21:00:49,182 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 54 transitions. Word has length 7 [2022-11-18 21:00:49,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:49,182 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 54 transitions. [2022-11-18 21:00:49,182 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,183 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 54 transitions. [2022-11-18 21:00:49,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:00:49,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:49,183 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:49,184 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:00:49,184 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:49,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:49,185 INFO L85 PathProgramCache]: Analyzing trace with hash 268255406, now seen corresponding path program 1 times [2022-11-18 21:00:49,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:49,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17191183] [2022-11-18 21:00:49,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:49,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:49,212 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:49,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:49,248 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:49,248 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:00:49,250 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:00:49,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:00:49,257 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 21:00:49,263 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:00:49,294 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 21:00:49,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:00:49 BoogieIcfgContainer [2022-11-18 21:00:49,307 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:00:49,308 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:00:49,308 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:00:49,309 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:00:49,309 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:48" (3/4) ... [2022-11-18 21:00:49,313 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:00:49,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:00:49,316 INFO L158 Benchmark]: Toolchain (without parser) took 2110.13ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 79.1MB in the beginning and 106.8MB in the end (delta: -27.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:49,317 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:49,318 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.73ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 96.6MB in the end (delta: -17.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-18 21:00:49,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.07ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:00:49,322 INFO L158 Benchmark]: Boogie Preprocessor took 43.48ms. Allocated memory is still 123.7MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 21:00:49,325 INFO L158 Benchmark]: RCFGBuilder took 656.41ms. Allocated memory is still 123.7MB. Free memory was 92.0MB in the beginning and 73.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-18 21:00:49,325 INFO L158 Benchmark]: TraceAbstraction took 965.91ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 72.3MB in the beginning and 107.6MB in the end (delta: -35.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:49,326 INFO L158 Benchmark]: Witness Printer took 6.53ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 106.8MB in the end (delta: 818.8kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:49,333 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 123.7MB. Free memory is still 95.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.73ms. Allocated memory is still 123.7MB. Free memory was 78.9MB in the beginning and 96.6MB in the end (delta: -17.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.07ms. Allocated memory is still 123.7MB. Free memory was 96.6MB in the beginning and 94.1MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.48ms. Allocated memory is still 123.7MB. Free memory was 94.1MB in the beginning and 92.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 656.41ms. Allocated memory is still 123.7MB. Free memory was 92.0MB in the beginning and 73.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 965.91ms. Allocated memory was 123.7MB in the beginning and 148.9MB in the end (delta: 25.2MB). Free memory was 72.3MB in the beginning and 107.6MB in the end (delta: -35.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.53ms. Allocated memory is still 148.9MB. Free memory was 107.6MB in the beginning and 106.8MB in the end (delta: 818.8kB). 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: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 60, overapproximation of bitwiseAnd at line 65. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 4); [L29] const SORT_4 msb_SORT_4 = (SORT_4)1 << (4 - 1); [L31] const SORT_28 mask_SORT_28 = (SORT_28)-1 >> (sizeof(SORT_28) * 8 - 32); [L32] const SORT_28 msb_SORT_28 = (SORT_28)1 << (32 - 1); [L34] const SORT_4 var_5 = 1; [L35] const SORT_4 var_8 = 0; [L36] const SORT_1 var_15 = 1; [L37] const SORT_4 var_22 = 15; [L38] const SORT_28 var_30 = 1; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L43] SORT_4 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L44] SORT_4 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_4; [L46] SORT_4 init_7_arg_1 = var_5; [L47] state_6 = init_7_arg_1 [L48] SORT_4 init_10_arg_1 = var_8; [L49] state_9 = init_10_arg_1 VAL [init_10_arg_1=0, init_7_arg_1=1, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_15=1, var_22=15, var_30=1, var_5=1, var_8=0] [L52] input_2 = __VERIFIER_nondet_uchar() [L53] input_3 = __VERIFIER_nondet_uchar() [L56] SORT_4 var_11_arg_0 = state_6; [L57] SORT_4 var_11_arg_1 = state_9; [L58] SORT_1 var_11 = var_11_arg_0 < var_11_arg_1; [L59] SORT_1 var_12_arg_0 = var_11; [L60] SORT_1 var_12 = ~var_12_arg_0; [L61] SORT_1 var_16_arg_0 = var_12; [L62] SORT_1 var_16 = ~var_16_arg_0; [L63] SORT_1 var_17_arg_0 = var_15; [L64] SORT_1 var_17_arg_1 = var_16; [L65] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; VAL [init_10_arg_1=0, init_7_arg_1=1, input_2=2, input_3=3, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=1, var_12_arg_0=0, var_15=1, var_16=2, var_16_arg_0=1, var_17=1, var_17_arg_0=1, var_17_arg_1=2, var_22=15, var_30=1, var_5=1, var_8=0] [L66] var_17 = var_17 & mask_SORT_1 VAL [init_10_arg_1=0, init_7_arg_1=1, input_2=2, input_3=3, mask_SORT_1=1, mask_SORT_28=4294967295, mask_SORT_4=15, msb_SORT_1=1, msb_SORT_28=2147483648, msb_SORT_4=8, state_6=1, state_9=0, var_11=0, var_11_arg_0=1, var_11_arg_1=0, var_12=1, var_12_arg_0=0, var_15=1, var_16=2, var_16_arg_0=1, var_17=1, var_17_arg_0=1, var_17_arg_1=2, var_22=15, var_30=1, var_5=1, var_8=0] [L67] SORT_1 bad_18_arg_0 = var_17; [L68] CALL __VERIFIER_assert(!(bad_18_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 38 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 132 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 132 mSDsluCounter, 108 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 53 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 55 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 21:00:49,365 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 4f767659aef273937b209b166fb1e0efe89714175079fa1bd2cb01c19aa1ec81 --- 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 21:00:51,760 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:51,763 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:51,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:51,806 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:51,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:51,813 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:51,820 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:51,823 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:51,829 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:51,830 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:51,831 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:51,831 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:51,833 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:51,834 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:51,835 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:51,836 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:51,837 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:51,842 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:51,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:51,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:51,859 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:51,861 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:51,862 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:51,865 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:51,865 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:51,866 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:51,867 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:51,867 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:51,868 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:51,869 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:51,869 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:51,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:51,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:51,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:51,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:51,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:51,879 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:51,879 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:51,881 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:51,882 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:51,887 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 21:00:51,936 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:51,936 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:51,937 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:51,937 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:51,938 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:51,938 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:51,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:51,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:51,940 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:51,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:51,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:51,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:00:51,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:51,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:00:51,943 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:00:51,943 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 21:00:51,943 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 21:00:51,943 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:51,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:51,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:00:51,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:51,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:51,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:51,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:51,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:51,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:51,946 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:00:51,946 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 21:00:51,946 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 21:00:51,946 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:00:51,947 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:00:51,947 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:00:51,947 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 21:00:51,947 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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f767659aef273937b209b166fb1e0efe89714175079fa1bd2cb01c19aa1ec81 [2022-11-18 21:00:52,396 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:52,438 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:52,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:52,443 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:52,444 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:52,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2022-11-18 21:00:52,529 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/605791dd1/37e55eb588bd47a794a513f32c0e9102/FLAG87cc2cbaf [2022-11-18 21:00:53,173 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:53,173 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c [2022-11-18 21:00:53,183 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/605791dd1/37e55eb588bd47a794a513f32c0e9102/FLAG87cc2cbaf [2022-11-18 21:00:53,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/data/605791dd1/37e55eb588bd47a794a513f32c0e9102 [2022-11-18 21:00:53,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:53,521 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:53,527 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:53,527 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:53,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:53,545 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,546 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f323f81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53, skipping insertion in model container [2022-11-18 21:00:53,546 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:53,573 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:53,710 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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1107,1120] [2022-11-18 21:00:53,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:53,770 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:53,802 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_f733aefe-e1fc-43f5-b8af-9bbaa3379054/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.diagonal_v.c[1107,1120] [2022-11-18 21:00:53,856 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:53,868 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:53,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53 WrapperNode [2022-11-18 21:00:53,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:53,870 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:53,870 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:53,871 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:53,878 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,927 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 145 [2022-11-18 21:00:53,930 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:53,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:53,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:53,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:53,942 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,950 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,950 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,957 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,960 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,962 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,966 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:53,967 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:53,967 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:53,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:53,968 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (1/1) ... [2022-11-18 21:00:53,975 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:53,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:53,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:54,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:54,053 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:54,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:54,150 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:54,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:54,564 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:54,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:54,573 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:00:54,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:54 BoogieIcfgContainer [2022-11-18 21:00:54,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:54,580 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:54,581 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:54,584 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:54,584 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:53" (1/3) ... [2022-11-18 21:00:54,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f871d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:54, skipping insertion in model container [2022-11-18 21:00:54,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:53" (2/3) ... [2022-11-18 21:00:54,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f871d00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:54, skipping insertion in model container [2022-11-18 21:00:54,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:54" (3/3) ... [2022-11-18 21:00:54,588 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.diagonal_v.c [2022-11-18 21:00:54,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:54,610 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:00:54,691 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:54,703 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;@6803df33, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:54,704 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:00:54,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:54,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 21:00:54,715 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:54,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 21:00:54,717 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:54,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:54,723 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 21:00:54,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:54,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1191585343] [2022-11-18 21:00:54,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:54,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:54,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:54,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:00:54,745 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 21:00:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:54,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 35 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-18 21:00:54,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:55,062 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 21:00:55,063 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:55,063 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:55,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1191585343] [2022-11-18 21:00:55,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1191585343] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:55,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:55,065 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:55,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276893135] [2022-11-18 21:00:55,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:55,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:55,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:55,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:55,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:55,116 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:55,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:55,190 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 21:00:55,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:55,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 21:00:55,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:55,203 INFO L225 Difference]: With dead ends: 20 [2022-11-18 21:00:55,204 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 21:00:55,207 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 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 21:00:55,211 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:55,213 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:55,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 21:00:55,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 21:00:55,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:55,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 21:00:55,245 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 21:00:55,245 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:55,245 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 21:00:55,245 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:55,245 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 21:00:55,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:00:55,246 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:55,246 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:55,264 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:55,458 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:55,458 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:55,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:55,460 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 21:00:55,463 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:55,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [496415643] [2022-11-18 21:00:55,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:55,465 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:55,465 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:55,466 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:00:55,514 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 21:00:55,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:55,631 WARN L261 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 95 conjunts are in the unsatisfiable core [2022-11-18 21:00:55,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:56,655 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:56,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:01:02,374 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:02,375 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:02,375 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [496415643] [2022-11-18 21:01:02,376 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [496415643] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:01:02,376 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:01:02,376 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 21:01:02,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360264524] [2022-11-18 21:01:02,381 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:01:02,382 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:01:02,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:02,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:01:02,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:01:02,386 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:02,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:02,497 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 21:01:02,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:01:02,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 21:01:02,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:02,499 INFO L225 Difference]: With dead ends: 16 [2022-11-18 21:01:02,500 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 21:01:02,500 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:01:02,501 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 7 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:02,502 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 19 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 17 Invalid, 0 Unknown, 7 Unchecked, 0.1s Time] [2022-11-18 21:01:02,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 21:01:02,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 21:01:02,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:02,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 21:01:02,509 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 21:01:02,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:02,509 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 21:01:02,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:02,510 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 21:01:02,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 21:01:02,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:02,511 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 21:01:02,530 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:02,722 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:01:02,723 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:01:02,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:02,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 21:01:02,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:02,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1873233218] [2022-11-18 21:01:02,735 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:01:02,735 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:01:02,735 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:02,737 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:01:02,747 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 21:01:02,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:01:02,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:02,911 WARN L261 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 165 conjunts are in the unsatisfiable core [2022-11-18 21:01:02,918 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:04,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:07:03,332 WARN L233 SmtUtils]: Spent 5.61m on a formula simplification. DAG size of input: 759 DAG size of output: 326 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:07:04,314 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:07:04,314 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:07:04,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1873233218] [2022-11-18 21:07:04,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1873233218] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:07:04,318 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:07:04,318 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 21:07:04,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13936336] [2022-11-18 21:07:04,322 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:07:04,322 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:07:04,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:07:04,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:07:04,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=65, Unknown=1, NotChecked=0, Total=90 [2022-11-18 21:07:04,325 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:04,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:07:04,694 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 21:07:04,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 21:07:04,695 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 21:07:04,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:07:04,696 INFO L225 Difference]: With dead ends: 19 [2022-11-18 21:07:04,696 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 21:07:04,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 342.5s TimeCoverageRelationStatistics Valid=45, Invalid=110, Unknown=1, NotChecked=0, Total=156 [2022-11-18 21:07:04,697 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 18 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:07:04,697 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 32 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 18 Unchecked, 0.1s Time] [2022-11-18 21:07:04,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 21:07:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-18 21:07:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 21:07:04,702 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 21:07:04,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:07:04,703 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 21:07:04,703 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:07:04,703 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 21:07:04,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 21:07:04,703 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:07:04,704 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 21:07:04,719 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:07:04,910 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:07:04,911 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:07:04,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:07:04,911 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 21:07:04,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:07:04,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [133254619] [2022-11-18 21:07:04,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:07:04,912 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:07:04,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:07:04,914 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:07:04,917 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f733aefe-e1fc-43f5-b8af-9bbaa3379054/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 21:07:05,100 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 21:07:05,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:07:05,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 242 conjunts are in the unsatisfiable core [2022-11-18 21:07:05,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:07:08,307 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:07:08,307 INFO L328 TraceCheckSpWp]: Computing backward predicates...