./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R --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 0034aaee219b01fdc9f2dbaa7e8c75f7b1137422df0c61c9ca667a958d734502 --- 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-38b53e6 [2022-11-25 16:47:27,725 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:47:27,727 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:47:27,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:47:27,756 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:47:27,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:47:27,765 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:47:27,767 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:47:27,770 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:47:27,773 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:47:27,776 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:47:27,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:47:27,780 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:47:27,785 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:47:27,787 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:47:27,790 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:47:27,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:47:27,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:47:27,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:47:27,798 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:47:27,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:47:27,805 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:47:27,807 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:47:27,809 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:47:27,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:47:27,820 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:47:27,820 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:47:27,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:47:27,824 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:47:27,825 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:47:27,827 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:47:27,828 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:47:27,830 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:47:27,831 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:47:27,832 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:47:27,833 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:47:27,833 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:47:27,834 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:47:27,834 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:47:27,836 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:47:27,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:47:27,839 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 16:47:27,878 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:47:27,881 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:47:27,882 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:47:27,882 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:47:27,883 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:47:27,884 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:47:27,885 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:47:27,885 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:47:27,885 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:47:27,885 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:47:27,887 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:47:27,887 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:47:27,887 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:47:27,887 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:47:27,888 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:47:27,888 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:47:27,888 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:47:27,889 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:47:27,889 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:47:27,889 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:47:27,889 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:47:27,889 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:47:27,890 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:47:27,890 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:47:27,890 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:47:27,890 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:47:27,891 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:47:27,891 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:47:27,892 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:47:27,892 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:47:27,893 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:47:27,893 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0034aaee219b01fdc9f2dbaa7e8c75f7b1137422df0c61c9ca667a958d734502 [2022-11-25 16:47:28,255 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:47:28,280 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:47:28,284 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:47:28,285 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:47:28,286 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:47:28,288 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c [2022-11-25 16:47:31,483 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:47:31,879 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:47:31,880 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c [2022-11-25 16:47:31,900 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data/d405c2a06/3d8321065d4a4100b67328cd4bd5f578/FLAG9c4904e53 [2022-11-25 16:47:31,928 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data/d405c2a06/3d8321065d4a4100b67328cd4bd5f578 [2022-11-25 16:47:31,934 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:47:31,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:47:31,940 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:47:31,941 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:47:31,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:47:31,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:31" (1/1) ... [2022-11-25 16:47:31,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68cc5627 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:31, skipping insertion in model container [2022-11-25 16:47:31,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:47:31" (1/1) ... [2022-11-25 16:47:31,957 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:47:32,071 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:47:32,402 WARN L237 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c[1014,1027] [2022-11-25 16:47:32,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:47:32,871 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:47:32,883 WARN L237 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c[1014,1027] [2022-11-25 16:47:33,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:47:33,187 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:47:33,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33 WrapperNode [2022-11-25 16:47:33,188 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:47:33,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:47:33,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:47:33,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:47:33,198 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,463 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2575 [2022-11-25 16:47:33,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:47:33,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:47:33,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:47:33,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:47:33,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,562 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,562 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,630 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,637 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,651 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,669 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:47:33,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:47:33,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:47:33,708 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:47:33,709 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (1/1) ... [2022-11-25 16:47:33,728 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:47:33,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:47:33,757 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:47:33,786 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:47:33,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:47:33,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:47:34,428 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:47:34,431 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:00:06,304 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:00:06,311 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:00:06,311 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:00:06,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:06 BoogieIcfgContainer [2022-11-25 17:00:06,314 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:00:06,316 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:00:06,316 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:00:06,320 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:00:06,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:47:31" (1/3) ... [2022-11-25 17:00:06,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdb1782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:06, skipping insertion in model container [2022-11-25 17:00:06,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:47:33" (2/3) ... [2022-11-25 17:00:06,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fdb1782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:06, skipping insertion in model container [2022-11-25 17:00:06,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:06" (3/3) ... [2022-11-25 17:00:06,324 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.at.2.prop1-func-interl.c [2022-11-25 17:00:06,345 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:00:06,346 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:00:06,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:00:06,444 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;@279b3288, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:00:06,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:00:06,452 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) [2022-11-25 17:00:06,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:00:06,460 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:00:06,461 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:00:06,461 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:00:06,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:06,468 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:00:06,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:00:06,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086378358] [2022-11-25 17:00:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:06,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:00:07,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:00:07,133 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:00:07,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:00:07,460 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:00:07,462 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:00:07,464 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:00:07,467 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:00:07,472 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:00:07,477 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:00:07,530 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:00:07,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:00:07 BoogieIcfgContainer [2022-11-25 17:00:07,557 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:00:07,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:00:07,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:00:07,560 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:00:07,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:06" (3/4) ... [2022-11-25 17:00:07,569 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:00:07,569 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:00:07,572 INFO L158 Benchmark]: Toolchain (without parser) took 755633.97ms. Allocated memory was 136.3MB in the beginning and 952.1MB in the end (delta: 815.8MB). Free memory was 90.3MB in the beginning and 559.6MB in the end (delta: -469.3MB). Peak memory consumption was 346.0MB. Max. memory is 16.1GB. [2022-11-25 17:00:07,573 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:00:07,574 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1248.06ms. Allocated memory is still 136.3MB. Free memory was 90.3MB in the beginning and 90.7MB in the end (delta: -362.6kB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2022-11-25 17:00:07,575 INFO L158 Benchmark]: Boogie Procedure Inliner took 273.95ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 59.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-25 17:00:07,583 INFO L158 Benchmark]: Boogie Preprocessor took 238.36ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 59.8MB in the beginning and 109.8MB in the end (delta: -50.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. [2022-11-25 17:00:07,584 INFO L158 Benchmark]: RCFGBuilder took 752610.75ms. Allocated memory was 180.4MB in the beginning and 952.1MB in the end (delta: 771.8MB). Free memory was 109.8MB in the beginning and 637.1MB in the end (delta: -527.4MB). Peak memory consumption was 583.0MB. Max. memory is 16.1GB. [2022-11-25 17:00:07,585 INFO L158 Benchmark]: TraceAbstraction took 1241.18ms. Allocated memory is still 952.1MB. Free memory was 636.1MB in the beginning and 559.6MB in the end (delta: 76.5MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2022-11-25 17:00:07,587 INFO L158 Benchmark]: Witness Printer took 9.91ms. Allocated memory is still 952.1MB. Free memory is still 559.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:00:07,591 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 107.0MB. Free memory is still 77.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1248.06ms. Allocated memory is still 136.3MB. Free memory was 90.3MB in the beginning and 90.7MB in the end (delta: -362.6kB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 273.95ms. Allocated memory is still 136.3MB. Free memory was 90.7MB in the beginning and 59.8MB in the end (delta: 30.9MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 238.36ms. Allocated memory was 136.3MB in the beginning and 180.4MB in the end (delta: 44.0MB). Free memory was 59.8MB in the beginning and 109.8MB in the end (delta: -50.0MB). Peak memory consumption was 25.0MB. Max. memory is 16.1GB. * RCFGBuilder took 752610.75ms. Allocated memory was 180.4MB in the beginning and 952.1MB in the end (delta: 771.8MB). Free memory was 109.8MB in the beginning and 637.1MB in the end (delta: -527.4MB). Peak memory consumption was 583.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1241.18ms. Allocated memory is still 952.1MB. Free memory was 636.1MB in the beginning and 559.6MB in the end (delta: 76.5MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. * Witness Printer took 9.91ms. Allocated memory is still 952.1MB. Free memory is still 559.6MB. 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 335, overapproximation of bitwiseAnd at line 229. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_18 = 0; [L39] const SORT_4 var_95 = 1; [L40] const SORT_4 var_96 = 0; [L41] const SORT_2 var_106 = 2; [L42] const SORT_2 var_108 = 1; [L43] const SORT_2 var_110 = 0; [L44] const SORT_2 var_115 = 255; [L45] const SORT_2 var_150 = 3; [L46] const SORT_3 var_154 = 0; [L47] const SORT_4 var_158 = 255; [L49] SORT_1 input_105; [L50] SORT_1 input_107; [L51] SORT_1 input_109; [L52] SORT_1 input_116; [L53] SORT_1 input_117; [L54] SORT_1 input_118; [L55] SORT_1 input_119; [L56] SORT_1 input_120; [L57] SORT_1 input_121; [L58] SORT_1 input_131; [L59] SORT_1 input_132; [L60] SORT_1 input_133; [L61] SORT_1 input_134; [L62] SORT_1 input_135; [L63] SORT_1 input_136; [L64] SORT_1 input_144; [L65] SORT_1 input_145; [L66] SORT_1 input_146; [L67] SORT_1 input_147; [L68] SORT_1 input_148; [L69] SORT_1 input_149; [L70] SORT_1 input_151; [L71] SORT_1 input_152; [L72] SORT_1 input_153; [L73] SORT_1 input_180; [L74] SORT_1 input_181; [L75] SORT_1 input_182; [L76] SORT_1 input_183; [L77] SORT_1 input_184; [L78] SORT_1 input_185; [L79] SORT_1 input_186; [L80] SORT_1 input_187; [L81] SORT_1 input_212; [L82] SORT_1 input_213; [L83] SORT_1 input_214; [L84] SORT_1 input_215; [L85] SORT_1 input_216; [L86] SORT_1 input_217; [L87] SORT_1 input_218; [L88] SORT_1 input_219; [L89] SORT_1 input_269; [L90] SORT_1 input_310; [L91] SORT_1 input_351; [L93] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L100] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L138] SORT_2 init_7_arg_1 = var_5; [L139] state_6 = init_7_arg_1 [L140] SORT_2 init_9_arg_1 = var_5; [L141] state_8 = init_9_arg_1 [L142] SORT_2 init_11_arg_1 = var_5; [L143] state_10 = init_11_arg_1 [L144] SORT_2 init_13_arg_1 = var_5; [L145] state_12 = init_13_arg_1 [L146] SORT_2 init_15_arg_1 = var_5; [L147] state_14 = init_15_arg_1 [L148] SORT_2 init_17_arg_1 = var_5; [L149] state_16 = init_17_arg_1 [L150] SORT_1 init_20_arg_1 = var_18; [L151] state_19 = init_20_arg_1 [L152] SORT_1 init_22_arg_1 = var_18; [L153] state_21 = init_22_arg_1 [L154] SORT_1 init_24_arg_1 = var_18; [L155] state_23 = init_24_arg_1 [L156] SORT_1 init_26_arg_1 = var_18; [L157] state_25 = init_26_arg_1 [L158] SORT_1 init_28_arg_1 = var_18; [L159] state_27 = init_28_arg_1 [L160] SORT_1 init_30_arg_1 = var_18; [L161] state_29 = init_30_arg_1 [L162] SORT_1 init_32_arg_1 = var_18; [L163] state_31 = init_32_arg_1 [L164] SORT_1 init_34_arg_1 = var_18; [L165] state_33 = init_34_arg_1 [L166] SORT_1 init_36_arg_1 = var_18; [L167] state_35 = init_36_arg_1 [L168] SORT_1 init_38_arg_1 = var_18; [L169] state_37 = init_38_arg_1 [L170] SORT_1 init_40_arg_1 = var_18; [L171] state_39 = init_40_arg_1 [L172] SORT_1 init_42_arg_1 = var_18; [L173] state_41 = init_42_arg_1 [L174] SORT_1 init_44_arg_1 = var_18; [L175] state_43 = init_44_arg_1 [L176] SORT_1 init_46_arg_1 = var_18; [L177] state_45 = init_46_arg_1 [L178] SORT_1 init_48_arg_1 = var_18; [L179] state_47 = init_48_arg_1 [L180] SORT_1 init_50_arg_1 = var_18; [L181] state_49 = init_50_arg_1 [L182] SORT_1 init_52_arg_1 = var_18; [L183] state_51 = init_52_arg_1 [L184] SORT_1 init_54_arg_1 = var_18; [L185] state_53 = init_54_arg_1 [L186] SORT_1 init_56_arg_1 = var_18; [L187] state_55 = init_56_arg_1 [L188] SORT_1 init_58_arg_1 = var_18; [L189] state_57 = init_58_arg_1 [L190] SORT_1 init_60_arg_1 = var_18; [L191] state_59 = init_60_arg_1 [L192] SORT_1 init_62_arg_1 = var_18; [L193] state_61 = init_62_arg_1 [L194] SORT_1 init_64_arg_1 = var_18; [L195] state_63 = init_64_arg_1 [L196] SORT_1 init_66_arg_1 = var_18; [L197] state_65 = init_66_arg_1 [L198] SORT_1 init_68_arg_1 = var_18; [L199] state_67 = init_68_arg_1 [L200] SORT_1 init_70_arg_1 = var_18; [L201] state_69 = init_70_arg_1 [L202] SORT_1 init_72_arg_1 = var_18; [L203] state_71 = init_72_arg_1 [L204] SORT_1 init_74_arg_1 = var_18; [L205] state_73 = init_74_arg_1 [L206] SORT_1 init_76_arg_1 = var_18; [L207] state_75 = init_76_arg_1 [L208] SORT_1 init_78_arg_1 = var_18; [L209] state_77 = init_78_arg_1 [L210] SORT_1 init_80_arg_1 = var_18; [L211] state_79 = init_80_arg_1 [L212] SORT_1 init_82_arg_1 = var_18; [L213] state_81 = init_82_arg_1 [L214] SORT_1 init_84_arg_1 = var_18; [L215] state_83 = init_84_arg_1 [L216] SORT_1 init_86_arg_1 = var_18; [L217] state_85 = init_86_arg_1 [L218] SORT_1 init_88_arg_1 = var_18; [L219] state_87 = init_88_arg_1 [L220] SORT_1 init_90_arg_1 = var_18; [L221] state_89 = init_90_arg_1 [L222] SORT_1 init_92_arg_1 = var_18; [L223] state_91 = init_92_arg_1 [L224] SORT_1 init_94_arg_1 = var_18; [L225] state_93 = init_94_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_86_arg_1=0, init_88_arg_1=0, init_90_arg_1=0, init_92_arg_1=0, init_94_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, state_85=0, state_87=0, state_89=0, state_91=0, state_93=0, var_106=2, var_108=1, var_110=0, var_115=255, var_150=3, var_154=0, var_158=255, var_18=0, var_5=0, var_95=1, var_96=0] [L228] input_105 = __VERIFIER_nondet_uchar() [L229] input_105 = input_105 & mask_SORT_1 [L230] input_107 = __VERIFIER_nondet_uchar() [L231] input_107 = input_107 & mask_SORT_1 [L232] input_109 = __VERIFIER_nondet_uchar() [L233] input_109 = input_109 & mask_SORT_1 [L234] input_116 = __VERIFIER_nondet_uchar() [L235] input_116 = input_116 & mask_SORT_1 [L236] input_117 = __VERIFIER_nondet_uchar() [L237] input_117 = input_117 & mask_SORT_1 [L238] input_118 = __VERIFIER_nondet_uchar() [L239] input_118 = input_118 & mask_SORT_1 [L240] input_119 = __VERIFIER_nondet_uchar() [L241] input_119 = input_119 & mask_SORT_1 [L242] input_120 = __VERIFIER_nondet_uchar() [L243] input_120 = input_120 & mask_SORT_1 [L244] input_121 = __VERIFIER_nondet_uchar() [L245] input_121 = input_121 & mask_SORT_1 [L246] input_131 = __VERIFIER_nondet_uchar() [L247] input_131 = input_131 & mask_SORT_1 [L248] input_132 = __VERIFIER_nondet_uchar() [L249] input_132 = input_132 & mask_SORT_1 [L250] input_133 = __VERIFIER_nondet_uchar() [L251] input_133 = input_133 & mask_SORT_1 [L252] input_134 = __VERIFIER_nondet_uchar() [L253] input_134 = input_134 & mask_SORT_1 [L254] input_135 = __VERIFIER_nondet_uchar() [L255] input_135 = input_135 & mask_SORT_1 [L256] input_136 = __VERIFIER_nondet_uchar() [L257] input_136 = input_136 & mask_SORT_1 [L258] input_144 = __VERIFIER_nondet_uchar() [L259] input_144 = input_144 & mask_SORT_1 [L260] input_145 = __VERIFIER_nondet_uchar() [L261] input_145 = input_145 & mask_SORT_1 [L262] input_146 = __VERIFIER_nondet_uchar() [L263] input_146 = input_146 & mask_SORT_1 [L264] input_147 = __VERIFIER_nondet_uchar() [L265] input_147 = input_147 & mask_SORT_1 [L266] input_148 = __VERIFIER_nondet_uchar() [L267] input_148 = input_148 & mask_SORT_1 [L268] input_149 = __VERIFIER_nondet_uchar() [L269] input_149 = input_149 & mask_SORT_1 [L270] input_151 = __VERIFIER_nondet_uchar() [L271] input_151 = input_151 & mask_SORT_1 [L272] input_152 = __VERIFIER_nondet_uchar() [L273] input_152 = input_152 & mask_SORT_1 [L274] input_153 = __VERIFIER_nondet_uchar() [L275] input_153 = input_153 & mask_SORT_1 [L276] input_180 = __VERIFIER_nondet_uchar() [L277] input_180 = input_180 & mask_SORT_1 [L278] input_181 = __VERIFIER_nondet_uchar() [L279] input_181 = input_181 & mask_SORT_1 [L280] input_182 = __VERIFIER_nondet_uchar() [L281] input_182 = input_182 & mask_SORT_1 [L282] input_183 = __VERIFIER_nondet_uchar() [L283] input_183 = input_183 & mask_SORT_1 [L284] input_184 = __VERIFIER_nondet_uchar() [L285] input_184 = input_184 & mask_SORT_1 [L286] input_185 = __VERIFIER_nondet_uchar() [L287] input_185 = input_185 & mask_SORT_1 [L288] input_186 = __VERIFIER_nondet_uchar() [L289] input_186 = input_186 & mask_SORT_1 [L290] input_187 = __VERIFIER_nondet_uchar() [L291] input_187 = input_187 & mask_SORT_1 [L292] input_212 = __VERIFIER_nondet_uchar() [L293] input_212 = input_212 & mask_SORT_1 [L294] input_213 = __VERIFIER_nondet_uchar() [L295] input_213 = input_213 & mask_SORT_1 [L296] input_214 = __VERIFIER_nondet_uchar() [L297] input_214 = input_214 & mask_SORT_1 [L298] input_215 = __VERIFIER_nondet_uchar() [L299] input_215 = input_215 & mask_SORT_1 [L300] input_216 = __VERIFIER_nondet_uchar() [L301] input_216 = input_216 & mask_SORT_1 [L302] input_217 = __VERIFIER_nondet_uchar() [L303] input_217 = input_217 & mask_SORT_1 [L304] input_218 = __VERIFIER_nondet_uchar() [L305] input_218 = input_218 & mask_SORT_1 [L306] input_219 = __VERIFIER_nondet_uchar() [L307] input_219 = input_219 & mask_SORT_1 [L308] input_269 = __VERIFIER_nondet_uchar() [L309] input_310 = __VERIFIER_nondet_uchar() [L310] input_351 = __VERIFIER_nondet_uchar() [L313] SORT_1 var_97_arg_0 = state_39; [L314] SORT_4 var_97_arg_1 = var_95; [L315] SORT_4 var_97_arg_2 = var_96; [L316] SORT_4 var_97 = var_97_arg_0 ? var_97_arg_1 : var_97_arg_2; [L317] SORT_1 var_98_arg_0 = state_63; [L318] SORT_4 var_98_arg_1 = var_95; [L319] SORT_4 var_98_arg_2 = var_96; [L320] SORT_4 var_98 = var_98_arg_0 ? var_98_arg_1 : var_98_arg_2; [L321] SORT_4 var_99_arg_0 = var_97; [L322] SORT_4 var_99_arg_1 = var_98; [L323] SORT_4 var_99 = var_99_arg_0 + var_99_arg_1; [L324] SORT_1 var_100_arg_0 = state_87; [L325] SORT_4 var_100_arg_1 = var_95; [L326] SORT_4 var_100_arg_2 = var_96; [L327] SORT_4 var_100 = var_100_arg_0 ? var_100_arg_1 : var_100_arg_2; [L328] SORT_4 var_101_arg_0 = var_99; [L329] SORT_4 var_101_arg_1 = var_100; [L330] SORT_4 var_101 = var_101_arg_0 + var_101_arg_1; [L331] var_101 = var_101 & mask_SORT_4 [L332] SORT_4 var_102_arg_0 = var_101; [L333] SORT_4 var_102_arg_1 = var_95; [L334] SORT_1 var_102 = var_102_arg_0 <= var_102_arg_1; [L335] SORT_1 var_103_arg_0 = ~state_93; [L336] var_103_arg_0 = var_103_arg_0 & mask_SORT_1 [L337] SORT_1 var_103_arg_1 = ~var_102; [L338] var_103_arg_1 = var_103_arg_1 & mask_SORT_1 [L339] SORT_1 var_103 = var_103_arg_0 & var_103_arg_1; [L340] var_103 = var_103 & mask_SORT_1 [L341] SORT_1 bad_104_arg_0 = var_103; [L342] CALL __VERIFIER_assert(!(bad_104_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, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:00:07,666 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R --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 0034aaee219b01fdc9f2dbaa7e8c75f7b1137422df0c61c9ca667a958d734502 --- 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-38b53e6 [2022-11-25 17:00:10,133 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:00:10,138 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:00:10,175 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:00:10,177 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:00:10,181 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:00:10,185 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:00:10,195 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:00:10,197 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:00:10,200 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:00:10,201 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:00:10,202 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:00:10,202 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:00:10,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:00:10,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:00:10,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:00:10,207 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:00:10,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:00:10,210 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:00:10,220 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:00:10,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:00:10,232 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:00:10,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:00:10,237 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:00:10,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:00:10,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:00:10,246 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:00:10,247 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:00:10,248 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:00:10,250 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:00:10,250 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:00:10,251 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:00:10,252 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:00:10,254 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:00:10,256 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:00:10,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:00:10,282 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:00:10,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:00:10,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:00:10,283 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:00:10,283 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:00:10,286 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:00:10,319 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:00:10,319 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:00:10,320 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:00:10,321 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:00:10,322 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:00:10,322 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:00:10,323 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:00:10,323 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:00:10,323 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:00:10,324 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:00:10,325 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:00:10,325 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:00:10,325 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:00:10,326 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:00:10,326 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:00:10,326 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:00:10,326 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:00:10,327 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:00:10,327 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:00:10,327 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:00:10,328 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:00:10,328 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:00:10,328 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:00:10,328 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:10,329 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:00:10,329 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:00:10,329 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:00:10,330 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:00:10,330 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:00:10,330 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:00:10,330 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:00:10,331 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:00:10,331 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:00:10,331 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:00:10,332 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0034aaee219b01fdc9f2dbaa7e8c75f7b1137422df0c61c9ca667a958d734502 [2022-11-25 17:00:10,719 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:00:10,740 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:00:10,743 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:00:10,744 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:00:10,744 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:00:10,746 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c [2022-11-25 17:00:13,775 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:00:14,370 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:00:14,370 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c [2022-11-25 17:00:14,391 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data/236d834f6/b749a299f82b458e9038f3504160a64e/FLAGa83b235ab [2022-11-25 17:00:14,419 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/data/236d834f6/b749a299f82b458e9038f3504160a64e [2022-11-25 17:00:14,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:00:14,427 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:00:14,432 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:14,432 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:00:14,436 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:00:14,437 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:14" (1/1) ... [2022-11-25 17:00:14,438 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cf136c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:14, skipping insertion in model container [2022-11-25 17:00:14,439 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:00:14" (1/1) ... [2022-11-25 17:00:14,447 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:00:14,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:00:14,770 WARN L237 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c[1014,1027] [2022-11-25 17:00:15,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:15,273 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:00:15,284 WARN L237 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_1b7a52e1-9387-4e0a-8d2d-805095614f1a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.at.2.prop1-func-interl.c[1014,1027] [2022-11-25 17:00:15,466 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:00:15,480 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:00:15,481 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15 WrapperNode [2022-11-25 17:00:15,481 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:00:15,482 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:15,482 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:00:15,483 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:00:15,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,535 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,654 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2575 [2022-11-25 17:00:15,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:00:15,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:00:15,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:00:15,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:00:15,666 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,667 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,692 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,693 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,796 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,816 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,850 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:00:15,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:00:15,853 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:00:15,853 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:00:15,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (1/1) ... [2022-11-25 17:00:15,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:00:15,875 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:00:15,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:00:15,913 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:00:15,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:00:15,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:00:16,722 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:00:16,724 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:00:21,055 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:00:21,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:00:21,064 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:00:21,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:21 BoogieIcfgContainer [2022-11-25 17:00:21,067 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:00:21,069 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:00:21,069 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:00:21,073 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:00:21,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:00:14" (1/3) ... [2022-11-25 17:00:21,074 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ccff54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:21, skipping insertion in model container [2022-11-25 17:00:21,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:00:15" (2/3) ... [2022-11-25 17:00:21,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77ccff54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:00:21, skipping insertion in model container [2022-11-25 17:00:21,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:00:21" (3/3) ... [2022-11-25 17:00:21,080 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.at.2.prop1-func-interl.c [2022-11-25 17:00:21,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:00:21,100 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:00:21,162 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:00:21,171 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;@143eb9a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:00:21,171 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:00:21,176 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) [2022-11-25 17:00:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:00:21,183 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:00:21,184 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:00:21,185 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:00:21,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:21,190 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:00:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:21,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [884112129] [2022-11-25 17:00:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:21,208 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 [2022-11-25 17:00:21,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:21,215 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:21,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:21,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:21,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 17:00:21,858 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:22,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:22,172 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:00:22,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:22,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [884112129] [2022-11-25 17:00:22,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [884112129] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:00:22,175 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:00:22,175 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:00:22,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41648436] [2022-11-25 17:00:22,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:00:22,183 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:00:22,183 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:22,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:00:22,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:00:22,234 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) [2022-11-25 17:00:22,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:00:22,617 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:00:22,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:00:22,619 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 [2022-11-25 17:00:22,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:00:22,627 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:00:22,627 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:00:22,630 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:00:22,633 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s 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, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:00:22,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:00:22,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:00:22,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:00:22,665 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) [2022-11-25 17:00:22,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:00:22,667 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:00:22,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:00:22,667 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:00:22,667 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) [2022-11-25 17:00:22,667 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:00:22,668 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:00:22,668 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:00:22,668 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:00:22,681 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:22,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:22,882 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:00:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:00:22,882 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:00:22,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:00:22,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [834562407] [2022-11-25 17:00:22,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:00:22,894 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 [2022-11-25 17:00:22,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:00:22,896 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:00:22,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:00:24,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:00:24,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 2288 conjuncts, 192 conjunts are in the unsatisfiable core [2022-11-25 17:00:24,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:00:27,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:27,664 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:00:52,696 WARN L233 SmtUtils]: Spent 18.02s on a formula simplification that was a NOOP. DAG size: 403 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:00:54,044 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:00:54,044 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:00:54,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [834562407] [2022-11-25 17:00:54,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [834562407] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:00:54,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:00:54,046 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 17:00:54,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396569981] [2022-11-25 17:00:54,046 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:00:54,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:00:54,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:00:54,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:00:54,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2022-11-25 17:00:54,049 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) [2022-11-25 17:01:02,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:01:02,027 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 17:01:02,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:01:02,028 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 [2022-11-25 17:01:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:01:02,029 INFO L225 Difference]: With dead ends: 16 [2022-11-25 17:01:02,030 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:01:02,030 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 30.6s TimeCoverageRelationStatistics Valid=37, Invalid=70, Unknown=3, NotChecked=0, Total=110 [2022-11-25 17:01:02,032 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:01:02,032 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 17:01:02,033 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:01:02,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 17:01:02,039 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) [2022-11-25 17:01:02,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 17:01:02,040 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 17:01:02,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:01:02,041 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 17:01:02,041 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) [2022-11-25 17:01:02,041 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 17:01:02,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:01:02,042 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:01:02,042 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:01:02,062 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:01:02,255 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:01:02,255 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:01:02,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:01:02,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 17:01:02,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:01:02,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [344891455] [2022-11-25 17:01:02,264 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:01:02,265 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 [2022-11-25 17:01:02,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:01:02,266 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 17:01:02,272 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1b7a52e1-9387-4e0a-8d2d-805095614f1a/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 17:01:04,190 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:01:04,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:01:04,295 INFO L263 TraceCheckSpWp]: Trace formula consists of 4394 conjuncts, 493 conjunts are in the unsatisfiable core [2022-11-25 17:01:04,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:01:15,300 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:01:15,300 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:02:32,240 WARN L233 SmtUtils]: Spent 1.14m on a formula simplification. DAG size of input: 444 DAG size of output: 439 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)