./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.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_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e2e2c23f0fa5cddd090507b5b4ac03decb224e1449c76fd3f03ece8a9c6ab30 --- 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 [2022-11-26 00:45:05,858 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:45:05,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:45:05,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:45:05,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:45:05,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:45:05,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:45:05,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:45:05,905 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:45:05,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:45:05,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:45:05,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:45:05,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:45:05,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:45:05,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:45:05,914 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:45:05,915 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:45:05,916 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:45:05,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:45:05,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:45:05,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:45:05,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:45:05,928 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:45:05,929 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:45:05,934 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:45:05,934 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:45:05,935 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:45:05,936 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:45:05,937 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:45:05,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:45:05,939 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:45:05,940 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:45:05,941 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:45:05,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:45:05,944 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:45:05,944 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:45:05,945 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:45:05,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:45:05,946 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:45:05,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:45:05,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:45:05,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-26 00:45:05,976 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:45:05,976 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:45:05,977 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:45:05,977 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:45:05,978 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:45:05,978 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:45:05,978 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:45:05,979 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:45:05,979 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:45:05,979 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:45:05,979 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:45:05,980 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:45:05,980 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:45:05,980 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:45:05,981 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:45:05,981 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:45:05,981 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:45:05,981 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:45:05,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:45:05,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:45:05,983 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:45:05,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:45:05,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:45:05,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:45:05,984 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:45:05,984 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:45:05,984 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:45:05,985 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:45:05,985 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:45:05,985 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:05,985 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:45:05,986 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:45:05,986 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:45:05,986 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:45:05,986 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:45:05,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:45:05,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:45:05,987 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:45:05,987 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e2e2c23f0fa5cddd090507b5b4ac03decb224e1449c76fd3f03ece8a9c6ab30 [2022-11-26 00:45:06,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:45:06,276 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:45:06,279 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:45:06,292 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:45:06,293 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:45:06,295 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c [2022-11-26 00:45:09,460 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:45:09,918 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:45:09,926 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c [2022-11-26 00:45:09,946 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data/64a5c24e0/bf666effa6384beb9b06cc216174b17e/FLAG73a56e825 [2022-11-26 00:45:09,962 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data/64a5c24e0/bf666effa6384beb9b06cc216174b17e [2022-11-26 00:45:09,965 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:45:09,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:45:09,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:45:09,969 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:45:10,001 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:45:10,002 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:45:09" (1/1) ... [2022-11-26 00:45:10,004 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@241036e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:10, skipping insertion in model container [2022-11-26 00:45:10,004 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:45:09" (1/1) ... [2022-11-26 00:45:10,012 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:45:10,142 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:45:10,336 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_e5b04568-f304-40dc-8f00-4e3bb711b4b2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c[1014,1027] [2022-11-26 00:45:10,864 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:45:10,869 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:45:10,882 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_e5b04568-f304-40dc-8f00-4e3bb711b4b2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c[1014,1027] [2022-11-26 00:45:11,157 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:45:11,196 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:45:11,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11 WrapperNode [2022-11-26 00:45:11,197 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:45:11,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:45:11,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:45:11,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:45:11,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,293 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,478 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2671 [2022-11-26 00:45:11,478 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:45:11,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:45:11,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:45:11,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:45:11,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,491 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,512 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,512 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,580 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,602 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,627 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,642 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,671 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:45:11,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:45:11,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:45:11,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:45:11,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (1/1) ... [2022-11-26 00:45:11,680 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:45:11,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:45:11,711 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:45:11,739 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:45:11,762 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:45:11,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:45:12,402 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:45:12,404 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:57:28,823 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:57:28,881 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:57:28,881 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:57:28,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:57:28 BoogieIcfgContainer [2022-11-26 00:57:28,885 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:57:28,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:57:28,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:57:28,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:57:28,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:45:09" (1/3) ... [2022-11-26 00:57:28,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcf23d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:57:28, skipping insertion in model container [2022-11-26 00:57:28,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:45:11" (2/3) ... [2022-11-26 00:57:28,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bcf23d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:57:28, skipping insertion in model container [2022-11-26 00:57:28,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:57:28" (3/3) ... [2022-11-26 00:57:28,901 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peterson.7.prop1-func-interl.c [2022-11-26 00:57:28,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:57:28,921 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:57:28,972 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:57:28,979 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=FINITE_AUTOMATA, 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;@7f792c24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:57:28,979 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:57:28,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 7 states, 5 states have (on average 1.6) internal successors, (8), 6 states have internal predecessors, (8), 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) [2022-11-26 00:57:28,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-26 00:57:28,990 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:28,991 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-26 00:57:28,992 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:57:28,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:28,998 INFO L85 PathProgramCache]: Analyzing trace with hash 1827279, now seen corresponding path program 1 times [2022-11-26 00:57:29,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:57:29,009 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449711788] [2022-11-26 00:57:29,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:29,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:57:29,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:57:29,516 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:57:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:57:29,865 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:57:29,867 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:57:29,868 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-26 00:57:29,871 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:57:29,876 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:57:29,880 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:57:29,938 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-26 00:57:29,960 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:57:29 BoogieIcfgContainer [2022-11-26 00:57:29,964 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:57:29,967 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:57:29,967 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:57:29,967 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:57:29,969 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:57:28" (3/4) ... [2022-11-26 00:57:29,975 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:57:29,976 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:57:29,978 INFO L158 Benchmark]: Toolchain (without parser) took 740010.07ms. Allocated memory was 125.8MB in the beginning and 1.0GB in the end (delta: 889.2MB). Free memory was 61.0MB in the beginning and 463.6MB in the end (delta: -402.6MB). Peak memory consumption was 489.3MB. Max. memory is 16.1GB. [2022-11-26 00:57:29,979 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:57:29,980 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1228.70ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 60.7MB in the beginning and 117.7MB in the end (delta: -57.0MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. [2022-11-26 00:57:29,981 INFO L158 Benchmark]: Boogie Procedure Inliner took 280.61ms. Allocated memory is still 169.9MB. Free memory was 117.7MB in the beginning and 87.3MB in the end (delta: 30.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-26 00:57:29,987 INFO L158 Benchmark]: Boogie Preprocessor took 192.93ms. Allocated memory is still 169.9MB. Free memory was 87.3MB in the beginning and 71.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:57:29,988 INFO L158 Benchmark]: RCFGBuilder took 737212.11ms. Allocated memory was 169.9MB in the beginning and 1.0GB in the end (delta: 845.2MB). Free memory was 71.7MB in the beginning and 538.0MB in the end (delta: -466.3MB). Peak memory consumption was 592.4MB. Max. memory is 16.1GB. [2022-11-26 00:57:29,989 INFO L158 Benchmark]: TraceAbstraction took 1074.47ms. Allocated memory is still 1.0GB. Free memory was 538.0MB in the beginning and 464.6MB in the end (delta: 73.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. [2022-11-26 00:57:29,990 INFO L158 Benchmark]: Witness Printer took 9.08ms. Allocated memory is still 1.0GB. Free memory was 464.6MB in the beginning and 463.6MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:57:29,996 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 125.8MB. Free memory is still 102.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1228.70ms. Allocated memory was 125.8MB in the beginning and 169.9MB in the end (delta: 44.0MB). Free memory was 60.7MB in the beginning and 117.7MB in the end (delta: -57.0MB). Peak memory consumption was 52.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 280.61ms. Allocated memory is still 169.9MB. Free memory was 117.7MB in the beginning and 87.3MB in the end (delta: 30.5MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 192.93ms. Allocated memory is still 169.9MB. Free memory was 87.3MB in the beginning and 71.7MB in the end (delta: 15.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * RCFGBuilder took 737212.11ms. Allocated memory was 169.9MB in the beginning and 1.0GB in the end (delta: 845.2MB). Free memory was 71.7MB in the beginning and 538.0MB in the end (delta: -466.3MB). Peak memory consumption was 592.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1074.47ms. Allocated memory is still 1.0GB. Free memory was 538.0MB in the beginning and 464.6MB in the end (delta: 73.4MB). Peak memory consumption was 75.5MB. Max. memory is 16.1GB. * Witness Printer took 9.08ms. Allocated memory is still 1.0GB. Free memory was 464.6MB in the beginning and 463.6MB in the end (delta: 1.1MB). 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 333, overapproximation of bitwiseAnd at line 231. 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_46 = 0; [L39] const SORT_4 var_99 = 1; [L40] const SORT_4 var_100 = 0; [L41] const SORT_2 var_114 = 0; [L42] const SORT_3 var_140 = 0; [L43] const SORT_2 var_145 = 4; [L44] const SORT_2 var_151 = 3; [L45] const SORT_2 var_157 = 2; [L46] const SORT_2 var_163 = 1; [L47] const SORT_4 var_191 = 2; [L48] const SORT_4 var_208 = 3; [L49] const SORT_4 var_225 = 4; [L50] const SORT_4 var_403 = 5; [L51] const SORT_2 var_431 = 5; [L53] SORT_1 input_113; [L54] SORT_1 input_115; [L55] SORT_1 input_119; [L56] SORT_1 input_120; [L57] SORT_1 input_124; [L58] SORT_1 input_125; [L59] SORT_1 input_129; [L60] SORT_1 input_130; [L61] SORT_1 input_134; [L62] SORT_1 input_135; [L63] SORT_1 input_139; [L64] SORT_1 input_146; [L65] SORT_1 input_152; [L66] SORT_1 input_158; [L67] SORT_1 input_164; [L68] SORT_1 input_242; [L69] SORT_1 input_245; [L70] SORT_1 input_249; [L71] SORT_1 input_256; [L72] SORT_1 input_259; [L73] SORT_1 input_263; [L74] SORT_1 input_270; [L75] SORT_1 input_273; [L76] SORT_1 input_277; [L77] SORT_1 input_284; [L78] SORT_1 input_287; [L79] SORT_1 input_291; [L80] SORT_1 input_298; [L81] SORT_1 input_301; [L82] SORT_1 input_305; [L83] SORT_1 input_315; [L84] SORT_1 input_333; [L85] SORT_1 input_351; [L86] SORT_1 input_369; [L87] SORT_1 input_387; [L89] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L90] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L91] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L92] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_22 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_24 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_26 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_2 state_28 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L101] SORT_2 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L102] SORT_2 state_32 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L103] SORT_2 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L104] SORT_2 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L105] SORT_2 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L106] SORT_2 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L107] SORT_2 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L108] SORT_2 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L109] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_85 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_87 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_89 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L131] SORT_1 state_91 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_1 state_93 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L133] SORT_1 state_95 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L134] SORT_1 state_97 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L136] SORT_2 init_7_arg_1 = var_5; [L137] state_6 = init_7_arg_1 [L138] SORT_2 init_9_arg_1 = var_5; [L139] state_8 = init_9_arg_1 [L140] SORT_2 init_11_arg_1 = var_5; [L141] state_10 = init_11_arg_1 [L142] SORT_2 init_13_arg_1 = var_5; [L143] state_12 = init_13_arg_1 [L144] SORT_2 init_15_arg_1 = var_5; [L145] state_14 = init_15_arg_1 [L146] SORT_2 init_17_arg_1 = var_5; [L147] state_16 = init_17_arg_1 [L148] SORT_2 init_19_arg_1 = var_5; [L149] state_18 = init_19_arg_1 [L150] SORT_2 init_21_arg_1 = var_5; [L151] state_20 = init_21_arg_1 [L152] SORT_2 init_23_arg_1 = var_5; [L153] state_22 = init_23_arg_1 [L154] SORT_2 init_25_arg_1 = var_5; [L155] state_24 = init_25_arg_1 [L156] SORT_2 init_27_arg_1 = var_5; [L157] state_26 = init_27_arg_1 [L158] SORT_2 init_29_arg_1 = var_5; [L159] state_28 = init_29_arg_1 [L160] SORT_2 init_31_arg_1 = var_5; [L161] state_30 = init_31_arg_1 [L162] SORT_2 init_33_arg_1 = var_5; [L163] state_32 = init_33_arg_1 [L164] SORT_2 init_35_arg_1 = var_5; [L165] state_34 = init_35_arg_1 [L166] SORT_2 init_37_arg_1 = var_5; [L167] state_36 = init_37_arg_1 [L168] SORT_2 init_39_arg_1 = var_5; [L169] state_38 = init_39_arg_1 [L170] SORT_2 init_41_arg_1 = var_5; [L171] state_40 = init_41_arg_1 [L172] SORT_2 init_43_arg_1 = var_5; [L173] state_42 = init_43_arg_1 [L174] SORT_2 init_45_arg_1 = var_5; [L175] state_44 = init_45_arg_1 [L176] SORT_1 init_48_arg_1 = var_46; [L177] state_47 = init_48_arg_1 [L178] SORT_1 init_50_arg_1 = var_46; [L179] state_49 = init_50_arg_1 [L180] SORT_1 init_52_arg_1 = var_46; [L181] state_51 = init_52_arg_1 [L182] SORT_1 init_54_arg_1 = var_46; [L183] state_53 = init_54_arg_1 [L184] SORT_1 init_56_arg_1 = var_46; [L185] state_55 = init_56_arg_1 [L186] SORT_1 init_58_arg_1 = var_46; [L187] state_57 = init_58_arg_1 [L188] SORT_1 init_60_arg_1 = var_46; [L189] state_59 = init_60_arg_1 [L190] SORT_1 init_62_arg_1 = var_46; [L191] state_61 = init_62_arg_1 [L192] SORT_1 init_64_arg_1 = var_46; [L193] state_63 = init_64_arg_1 [L194] SORT_1 init_66_arg_1 = var_46; [L195] state_65 = init_66_arg_1 [L196] SORT_1 init_68_arg_1 = var_46; [L197] state_67 = init_68_arg_1 [L198] SORT_1 init_70_arg_1 = var_46; [L199] state_69 = init_70_arg_1 [L200] SORT_1 init_72_arg_1 = var_46; [L201] state_71 = init_72_arg_1 [L202] SORT_1 init_74_arg_1 = var_46; [L203] state_73 = init_74_arg_1 [L204] SORT_1 init_76_arg_1 = var_46; [L205] state_75 = init_76_arg_1 [L206] SORT_1 init_78_arg_1 = var_46; [L207] state_77 = init_78_arg_1 [L208] SORT_1 init_80_arg_1 = var_46; [L209] state_79 = init_80_arg_1 [L210] SORT_1 init_82_arg_1 = var_46; [L211] state_81 = init_82_arg_1 [L212] SORT_1 init_84_arg_1 = var_46; [L213] state_83 = init_84_arg_1 [L214] SORT_1 init_86_arg_1 = var_46; [L215] state_85 = init_86_arg_1 [L216] SORT_1 init_88_arg_1 = var_46; [L217] state_87 = init_88_arg_1 [L218] SORT_1 init_90_arg_1 = var_46; [L219] state_89 = init_90_arg_1 [L220] SORT_1 init_92_arg_1 = var_46; [L221] state_91 = init_92_arg_1 [L222] SORT_1 init_94_arg_1 = var_46; [L223] state_93 = init_94_arg_1 [L224] SORT_1 init_96_arg_1 = var_46; [L225] state_95 = init_96_arg_1 [L226] SORT_1 init_98_arg_1 = var_46; [L227] state_97 = init_98_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_23_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_31_arg_1=0, init_33_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_45_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_96_arg_1=0, init_98_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_18=0, state_20=0, state_22=0, state_24=0, state_26=0, state_28=0, state_30=0, state_32=0, state_34=0, state_36=0, state_38=0, state_40=0, state_42=0, state_44=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, state_95=0, state_97=0, var_100=0, var_114=0, var_140=0, var_145=4, var_151=3, var_157=2, var_163=1, var_191=2, var_208=3, var_225=4, var_403=5, var_431=5, var_46=0, var_5=0, var_99=1] [L230] input_113 = __VERIFIER_nondet_uchar() [L231] input_113 = input_113 & mask_SORT_1 [L232] input_115 = __VERIFIER_nondet_uchar() [L233] input_115 = input_115 & mask_SORT_1 [L234] input_119 = __VERIFIER_nondet_uchar() [L235] input_119 = input_119 & mask_SORT_1 [L236] input_120 = __VERIFIER_nondet_uchar() [L237] input_120 = input_120 & mask_SORT_1 [L238] input_124 = __VERIFIER_nondet_uchar() [L239] input_124 = input_124 & mask_SORT_1 [L240] input_125 = __VERIFIER_nondet_uchar() [L241] input_125 = input_125 & mask_SORT_1 [L242] input_129 = __VERIFIER_nondet_uchar() [L243] input_129 = input_129 & mask_SORT_1 [L244] input_130 = __VERIFIER_nondet_uchar() [L245] input_130 = input_130 & mask_SORT_1 [L246] input_134 = __VERIFIER_nondet_uchar() [L247] input_134 = input_134 & mask_SORT_1 [L248] input_135 = __VERIFIER_nondet_uchar() [L249] input_135 = input_135 & mask_SORT_1 [L250] input_139 = __VERIFIER_nondet_uchar() [L251] input_139 = input_139 & mask_SORT_1 [L252] input_146 = __VERIFIER_nondet_uchar() [L253] input_146 = input_146 & mask_SORT_1 [L254] input_152 = __VERIFIER_nondet_uchar() [L255] input_152 = input_152 & mask_SORT_1 [L256] input_158 = __VERIFIER_nondet_uchar() [L257] input_158 = input_158 & mask_SORT_1 [L258] input_164 = __VERIFIER_nondet_uchar() [L259] input_164 = input_164 & mask_SORT_1 [L260] input_242 = __VERIFIER_nondet_uchar() [L261] input_242 = input_242 & mask_SORT_1 [L262] input_245 = __VERIFIER_nondet_uchar() [L263] input_245 = input_245 & mask_SORT_1 [L264] input_249 = __VERIFIER_nondet_uchar() [L265] input_249 = input_249 & mask_SORT_1 [L266] input_256 = __VERIFIER_nondet_uchar() [L267] input_256 = input_256 & mask_SORT_1 [L268] input_259 = __VERIFIER_nondet_uchar() [L269] input_259 = input_259 & mask_SORT_1 [L270] input_263 = __VERIFIER_nondet_uchar() [L271] input_263 = input_263 & mask_SORT_1 [L272] input_270 = __VERIFIER_nondet_uchar() [L273] input_270 = input_270 & mask_SORT_1 [L274] input_273 = __VERIFIER_nondet_uchar() [L275] input_273 = input_273 & mask_SORT_1 [L276] input_277 = __VERIFIER_nondet_uchar() [L277] input_277 = input_277 & mask_SORT_1 [L278] input_284 = __VERIFIER_nondet_uchar() [L279] input_284 = input_284 & mask_SORT_1 [L280] input_287 = __VERIFIER_nondet_uchar() [L281] input_287 = input_287 & mask_SORT_1 [L282] input_291 = __VERIFIER_nondet_uchar() [L283] input_291 = input_291 & mask_SORT_1 [L284] input_298 = __VERIFIER_nondet_uchar() [L285] input_298 = input_298 & mask_SORT_1 [L286] input_301 = __VERIFIER_nondet_uchar() [L287] input_301 = input_301 & mask_SORT_1 [L288] input_305 = __VERIFIER_nondet_uchar() [L289] input_305 = input_305 & mask_SORT_1 [L290] input_315 = __VERIFIER_nondet_uchar() [L291] input_333 = __VERIFIER_nondet_uchar() [L292] input_351 = __VERIFIER_nondet_uchar() [L293] input_369 = __VERIFIER_nondet_uchar() [L294] input_387 = __VERIFIER_nondet_uchar() [L297] SORT_1 var_101_arg_0 = state_49; [L298] SORT_4 var_101_arg_1 = var_99; [L299] SORT_4 var_101_arg_2 = var_100; [L300] SORT_4 var_101 = var_101_arg_0 ? var_101_arg_1 : var_101_arg_2; [L301] SORT_1 var_102_arg_0 = state_59; [L302] SORT_4 var_102_arg_1 = var_99; [L303] SORT_4 var_102_arg_2 = var_100; [L304] SORT_4 var_102 = var_102_arg_0 ? var_102_arg_1 : var_102_arg_2; [L305] SORT_4 var_103_arg_0 = var_101; [L306] SORT_4 var_103_arg_1 = var_102; [L307] SORT_4 var_103 = var_103_arg_0 + var_103_arg_1; [L308] SORT_1 var_104_arg_0 = state_69; [L309] SORT_4 var_104_arg_1 = var_99; [L310] SORT_4 var_104_arg_2 = var_100; [L311] SORT_4 var_104 = var_104_arg_0 ? var_104_arg_1 : var_104_arg_2; [L312] SORT_4 var_105_arg_0 = var_103; [L313] SORT_4 var_105_arg_1 = var_104; [L314] SORT_4 var_105 = var_105_arg_0 + var_105_arg_1; [L315] SORT_1 var_106_arg_0 = state_79; [L316] SORT_4 var_106_arg_1 = var_99; [L317] SORT_4 var_106_arg_2 = var_100; [L318] SORT_4 var_106 = var_106_arg_0 ? var_106_arg_1 : var_106_arg_2; [L319] SORT_4 var_107_arg_0 = var_105; [L320] SORT_4 var_107_arg_1 = var_106; [L321] SORT_4 var_107 = var_107_arg_0 + var_107_arg_1; [L322] SORT_1 var_108_arg_0 = state_89; [L323] SORT_4 var_108_arg_1 = var_99; [L324] SORT_4 var_108_arg_2 = var_100; [L325] SORT_4 var_108 = var_108_arg_0 ? var_108_arg_1 : var_108_arg_2; [L326] SORT_4 var_109_arg_0 = var_107; [L327] SORT_4 var_109_arg_1 = var_108; [L328] SORT_4 var_109 = var_109_arg_0 + var_109_arg_1; [L329] var_109 = var_109 & mask_SORT_4 [L330] SORT_4 var_110_arg_0 = var_109; [L331] SORT_4 var_110_arg_1 = var_99; [L332] SORT_1 var_110 = var_110_arg_0 <= var_110_arg_1; [L333] SORT_1 var_111_arg_0 = ~state_97; [L334] var_111_arg_0 = var_111_arg_0 & mask_SORT_1 [L335] SORT_1 var_111_arg_1 = ~var_110; [L336] var_111_arg_1 = var_111_arg_1 & mask_SORT_1 [L337] SORT_1 var_111 = var_111_arg_0 & var_111_arg_1; [L338] var_111 = var_111 & mask_SORT_1 [L339] SORT_1 bad_112_arg_0 = var_111; [L340] CALL __VERIFIER_assert(!(bad_112_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, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, 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=7occurred 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, 0.4s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:57:30,044 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9e2e2c23f0fa5cddd090507b5b4ac03decb224e1449c76fd3f03ece8a9c6ab30 --- 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 [2022-11-26 00:57:32,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:57:32,708 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:57:32,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:57:32,754 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:57:32,758 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:57:32,761 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:57:32,766 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:57:32,768 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:57:32,775 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:57:32,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:57:32,780 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:57:32,781 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:57:32,784 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:57:32,785 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:57:32,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:57:32,795 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:57:32,796 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:57:32,799 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:57:32,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:57:32,806 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:57:32,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:57:32,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:57:32,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:57:32,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:57:32,826 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:57:32,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:57:32,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:57:32,829 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:57:32,831 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:57:32,831 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:57:32,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:57:32,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:57:32,836 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:57:32,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:57:32,867 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:57:32,868 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:57:32,868 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:57:32,869 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:57:32,870 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:57:32,871 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:57:32,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-26 00:57:32,928 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:57:32,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:57:32,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:57:32,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:57:32,932 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:57:32,932 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:57:32,932 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:57:32,933 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:57:32,933 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:57:32,933 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:57:32,934 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:57:32,935 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:57:32,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:57:32,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:57:32,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:57:32,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:57:32,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:57:32,937 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:57:32,937 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:57:32,938 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:57:32,938 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:57:32,938 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:57:32,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:57:32,939 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:57:32,939 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:57:32,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:57:32,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:57:32,940 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:57:32,940 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:57:32,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:57:32,941 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:57:32,941 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:57:32,941 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:57:32,942 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:57:32,942 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:57:32,942 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9e2e2c23f0fa5cddd090507b5b4ac03decb224e1449c76fd3f03ece8a9c6ab30 [2022-11-26 00:57:33,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:57:33,397 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:57:33,402 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:57:33,404 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:57:33,404 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:57:33,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c [2022-11-26 00:57:36,549 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:57:36,996 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:57:36,997 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c [2022-11-26 00:57:37,018 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data/2966bd142/c0d1f7922ced4df890ecb9739cd41df0/FLAGe3185ad67 [2022-11-26 00:57:37,034 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/data/2966bd142/c0d1f7922ced4df890ecb9739cd41df0 [2022-11-26 00:57:37,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:57:37,041 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:57:37,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:57:37,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:57:37,048 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:57:37,049 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:57:37" (1/1) ... [2022-11-26 00:57:37,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238a6dd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:37, skipping insertion in model container [2022-11-26 00:57:37,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:57:37" (1/1) ... [2022-11-26 00:57:37,059 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:57:37,160 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:57:37,388 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_e5b04568-f304-40dc-8f00-4e3bb711b4b2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c[1014,1027] [2022-11-26 00:57:37,936 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:57:37,948 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:57:37,961 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_e5b04568-f304-40dc-8f00-4e3bb711b4b2/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.peterson.7.prop1-func-interl.c[1014,1027] [2022-11-26 00:57:38,215 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:57:38,229 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:57:38,229 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38 WrapperNode [2022-11-26 00:57:38,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:57:38,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:57:38,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:57:38,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:57:38,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,436 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2671 [2022-11-26 00:57:38,436 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:57:38,437 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:57:38,437 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:57:38,437 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:57:38,447 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,447 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,460 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,460 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,557 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,579 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,592 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,631 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:57:38,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:57:38,632 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:57:38,632 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:57:38,633 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (1/1) ... [2022-11-26 00:57:38,640 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:57:38,654 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:57:38,673 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:57:38,683 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:57:38,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:57:38,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:57:39,324 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:57:39,326 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:57:45,062 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:57:45,070 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:57:45,070 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-26 00:57:45,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:57:45 BoogieIcfgContainer [2022-11-26 00:57:45,072 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:57:45,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:57:45,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:57:45,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:57:45,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:57:37" (1/3) ... [2022-11-26 00:57:45,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3794fa92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:57:45, skipping insertion in model container [2022-11-26 00:57:45,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:57:38" (2/3) ... [2022-11-26 00:57:45,081 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3794fa92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:57:45, skipping insertion in model container [2022-11-26 00:57:45,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:57:45" (3/3) ... [2022-11-26 00:57:45,083 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.peterson.7.prop1-func-interl.c [2022-11-26 00:57:45,103 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:57:45,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-26 00:57:45,153 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:57:45,161 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=FINITE_AUTOMATA, 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;@27c146b2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:57:45,161 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-26 00:57:45,165 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) [2022-11-26 00:57:45,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-26 00:57:45,172 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:45,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-26 00:57:45,173 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:57:45,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:45,179 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-26 00:57:45,195 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:57:45,195 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [315546220] [2022-11-26 00:57:45,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:45,196 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 [2022-11-26 00:57:45,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:57:45,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:57:45,251 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:57:45,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:45,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 48 conjunts are in the unsatisfiable core [2022-11-26 00:57:45,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:57:46,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:46,423 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-26 00:57:46,423 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:57:46,424 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [315546220] [2022-11-26 00:57:46,424 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [315546220] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:57:46,425 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:57:46,425 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-26 00:57:46,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199456421] [2022-11-26 00:57:46,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:57:46,433 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:57:46,434 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-26 00:57:46,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:57:46,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:57:46,506 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) [2022-11-26 00:57:47,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:57:47,128 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-26 00:57:47,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-26 00:57:47,132 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 [2022-11-26 00:57:47,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:57:47,140 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:57:47,140 INFO L226 Difference]: Without dead ends: 11 [2022-11-26 00:57:47,144 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 [2022-11-26 00:57:47,150 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s 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, 0.6s IncrementalHoareTripleChecker+Time [2022-11-26 00:57:47,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-11-26 00:57:47,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-26 00:57:47,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-26 00:57:47,183 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) [2022-11-26 00:57:47,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-26 00:57:47,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-26 00:57:47,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:57:47,186 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-26 00:57:47,186 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) [2022-11-26 00:57:47,186 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-26 00:57:47,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-26 00:57:47,187 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:57:47,187 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-26 00:57:47,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:57:47,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:57:47,401 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-26 00:57:47,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:57:47,401 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-26 00:57:47,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:57:47,406 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2013490239] [2022-11-26 00:57:47,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:57:47,407 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 [2022-11-26 00:57:47,407 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:57:47,409 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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) [2022-11-26 00:57:47,441 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/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 [2022-11-26 00:57:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:57:48,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 195 conjunts are in the unsatisfiable core [2022-11-26 00:57:48,955 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:57:52,534 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:57:52,534 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:58:42,200 WARN L233 SmtUtils]: Spent 38.61s on a formula simplification that was a NOOP. DAG size: 385 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-26 00:58:43,748 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:43,748 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-26 00:58:43,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2013490239] [2022-11-26 00:58:43,749 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2013490239] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-26 00:58:43,749 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1714156474] [2022-11-26 00:58:43,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:58:43,749 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-26 00:58:43,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/cvc4 [2022-11-26 00:58:43,755 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-26 00:58:43,769 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e5b04568-f304-40dc-8f00-4e3bb711b4b2/bin/utaipan-ByfvJB40ur/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-26 00:58:46,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:58:46,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 2352 conjuncts, 197 conjunts are in the unsatisfiable core [2022-11-26 00:58:46,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-26 00:58:52,915 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:58:52,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-26 00:59:26,555 WARN L233 SmtUtils]: Spent 29.95s on a formula simplification. DAG size of input: 91 DAG size of output: 77 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)