./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e7fbc69 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_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW --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 acd2617a3edb91b922a4870120767d3ac0938743fb410499403adcdf871f8fcc --- 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-4e7fbc6 [2022-11-23 14:53:58,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:53:58,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:53:58,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:53:58,854 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:53:58,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:53:58,861 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:53:58,864 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:53:58,867 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:53:58,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:53:58,874 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:53:58,876 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:53:58,877 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:53:58,878 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:53:58,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:53:58,883 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:53:58,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:53:58,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:53:58,888 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:53:58,895 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:53:58,897 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:53:58,899 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:53:58,901 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:53:58,902 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:53:58,912 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:53:58,912 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:53:58,912 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:53:58,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:53:58,914 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:53:58,915 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:53:58,915 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:53:58,916 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:53:58,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:53:58,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:53:58,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:53:58,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:53:58,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:53:58,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:53:58,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:53:58,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:53:58,922 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:53:58,923 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Default.epf [2022-11-23 14:53:58,945 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:53:58,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:53:58,946 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:53:58,946 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:53:58,947 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:53:58,947 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:53:58,947 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:53:58,948 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:53:58,948 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:53:58,948 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-23 14:53:58,948 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:53:58,948 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:53:58,948 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-23 14:53:58,949 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-23 14:53:58,949 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:53:58,949 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-23 14:53:58,949 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-23 14:53:58,950 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-23 14:53:58,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:53:58,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 14:53:58,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:53:58,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:53:58,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:53:58,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:53:58,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:53:58,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:53:58,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:53:58,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:53:58,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:53:58,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:53:58,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:53:58,953 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-23 14:53:58,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:53:58,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:53:58,953 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-23 14:53:58,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 14:53:58,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:53:58,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:53:58,954 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_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acd2617a3edb91b922a4870120767d3ac0938743fb410499403adcdf871f8fcc [2022-11-23 14:53:59,254 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:53:59,295 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:53:59,298 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:53:59,299 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:53:59,300 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:53:59,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2022-11-23 14:54:02,463 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:54:02,698 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:54:02,698 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2022-11-23 14:54:02,706 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data/8822c3cbb/45744a813aff40b69735c16804a7d2f7/FLAGdf507be37 [2022-11-23 14:54:02,723 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data/8822c3cbb/45744a813aff40b69735c16804a7d2f7 [2022-11-23 14:54:02,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:54:02,727 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:54:02,729 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:02,729 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:54:02,733 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:54:02,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:02" (1/1) ... [2022-11-23 14:54:02,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b39adb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:02, skipping insertion in model container [2022-11-23 14:54:02,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:02" (1/1) ... [2022-11-23 14:54:02,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:54:02,787 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:54:02,988 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_dc5add52-2753-4d4c-9025-86e25a015dff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c[1107,1120] [2022-11-23 14:54:03,095 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:03,100 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:54:03,111 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_dc5add52-2753-4d4c-9025-86e25a015dff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c[1107,1120] [2022-11-23 14:54:03,162 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:03,175 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:54:03,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03 WrapperNode [2022-11-23 14:54:03,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:03,177 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:03,178 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:54:03,178 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:54:03,185 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,230 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 184 [2022-11-23 14:54:03,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:03,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:54:03,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:54:03,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:54:03,244 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,245 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,251 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,264 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,271 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,292 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:54:03,297 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:54:03,297 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:54:03,298 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:54:03,299 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (1/1) ... [2022-11-23 14:54:03,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:03,335 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:03,353 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:54:03,363 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:54:03,389 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:54:03,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:54:03,483 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:54:03,485 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:54:04,030 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:54:04,048 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:54:04,048 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:54:04,051 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:04 BoogieIcfgContainer [2022-11-23 14:54:04,051 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:54:04,053 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:54:04,053 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:54:04,070 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:54:04,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:54:02" (1/3) ... [2022-11-23 14:54:04,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e96021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:04, skipping insertion in model container [2022-11-23 14:54:04,071 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:03" (2/3) ... [2022-11-23 14:54:04,071 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57e96021 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:04, skipping insertion in model container [2022-11-23 14:54:04,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:04" (3/3) ... [2022-11-23 14:54:04,073 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal51.c [2022-11-23 14:54:04,100 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:54:04,101 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:54:04,145 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:54:04,151 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;@2ac4e228, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:54:04,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:54:04,156 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) [2022-11-23 14:54:04,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-11-23 14:54:04,161 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:04,162 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-11-23 14:54:04,163 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:04,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:04,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1797488, now seen corresponding path program 1 times [2022-11-23 14:54:04,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-23 14:54:04,176 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493907462] [2022-11-23 14:54:04,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:04,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 14:54:04,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:54:04,616 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 14:54:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 14:54:04,854 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-23 14:54:04,857 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 14:54:04,858 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:54:04,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 14:54:04,873 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-23 14:54:04,877 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:54:04,905 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-23 14:54:04,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:54:04 BoogieIcfgContainer [2022-11-23 14:54:04,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:54:04,914 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:54:04,914 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:54:04,914 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:54:04,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:04" (3/4) ... [2022-11-23 14:54:04,918 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-23 14:54:04,918 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:54:04,920 INFO L158 Benchmark]: Toolchain (without parser) took 2192.32ms. Allocated memory is still 201.3MB. Free memory was 155.3MB in the beginning and 120.9MB in the end (delta: 34.4MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2022-11-23 14:54:04,920 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:54:04,921 INFO L158 Benchmark]: CACSL2BoogieTranslator took 448.24ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 140.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-23 14:54:04,921 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.27ms. Allocated memory is still 201.3MB. Free memory was 140.8MB in the beginning and 138.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:54:04,922 INFO L158 Benchmark]: Boogie Preprocessor took 65.29ms. Allocated memory is still 201.3MB. Free memory was 138.5MB in the beginning and 136.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:54:04,927 INFO L158 Benchmark]: RCFGBuilder took 753.83ms. Allocated memory is still 201.3MB. Free memory was 136.5MB in the beginning and 165.0MB in the end (delta: -28.5MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. [2022-11-23 14:54:04,929 INFO L158 Benchmark]: TraceAbstraction took 860.39ms. Allocated memory is still 201.3MB. Free memory was 165.0MB in the beginning and 120.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-23 14:54:04,930 INFO L158 Benchmark]: Witness Printer took 4.79ms. Allocated memory is still 201.3MB. Free memory is still 120.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:54:04,937 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 138.4MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 448.24ms. Allocated memory is still 201.3MB. Free memory was 154.7MB in the beginning and 140.8MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.27ms. Allocated memory is still 201.3MB. Free memory was 140.8MB in the beginning and 138.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 65.29ms. Allocated memory is still 201.3MB. Free memory was 138.5MB in the beginning and 136.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 753.83ms. Allocated memory is still 201.3MB. Free memory was 136.5MB in the beginning and 165.0MB in the end (delta: -28.5MB). Peak memory consumption was 48.1MB. Max. memory is 16.1GB. * TraceAbstraction took 860.39ms. Allocated memory is still 201.3MB. Free memory was 165.0MB in the beginning and 120.9MB in the end (delta: 44.0MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.79ms. Allocated memory is still 201.3MB. Free memory is still 120.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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 77, overapproximation of bitwiseOr at line 96, overapproximation of bitwiseAnd at line 65. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 3); [L29] const SORT_5 msb_SORT_5 = (SORT_5)1 << (3 - 1); [L31] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 2); [L32] const SORT_27 msb_SORT_27 = (SORT_27)1 << (2 - 1); [L34] const SORT_1 var_11 = 0; [L35] const SORT_5 var_15 = 0; [L36] const SORT_5 var_21 = 2; [L37] const SORT_5 var_24 = 1; [L38] const SORT_1 var_41 = 1; [L40] SORT_1 input_2; [L41] SORT_1 input_3; [L42] SORT_1 input_4; [L43] SORT_5 input_6; [L44] SORT_5 input_7; [L45] SORT_1 input_8; [L46] SORT_5 input_9; [L47] SORT_5 input_10; [L49] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L50] SORT_5 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L51] SORT_1 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L52] SORT_5 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_5; [L54] SORT_1 init_13_arg_1 = var_11; [L55] state_12 = init_13_arg_1 [L56] SORT_5 init_17_arg_1 = var_15; [L57] state_16 = init_17_arg_1 [L58] SORT_1 init_19_arg_1 = var_11; [L59] state_18 = init_19_arg_1 [L60] SORT_5 init_31_arg_1 = var_15; [L61] state_30 = init_31_arg_1 VAL [init_13_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_31_arg_1=0, mask_SORT_1=1, mask_SORT_27=3, mask_SORT_5=7, msb_SORT_1=1, msb_SORT_27=2, msb_SORT_5=4, state_12=0, state_16=0, state_18=0, state_30=0, var_11=0, var_15=0, var_21=2, var_24=1, var_41=1] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_2 = input_2 & mask_SORT_1 [L66] input_3 = __VERIFIER_nondet_uchar() [L67] input_3 = input_3 & mask_SORT_1 [L68] input_4 = __VERIFIER_nondet_uchar() [L69] input_6 = __VERIFIER_nondet_uchar() [L70] input_7 = __VERIFIER_nondet_uchar() [L71] input_8 = __VERIFIER_nondet_uchar() [L72] input_9 = __VERIFIER_nondet_uchar() [L73] input_10 = __VERIFIER_nondet_uchar() [L76] SORT_1 var_14_arg_0 = state_12; [L77] SORT_1 var_14 = ~var_14_arg_0; [L78] SORT_1 var_20_arg_0 = state_18; [L79] SORT_5 var_20_arg_1 = state_16; [L80] SORT_5 var_20_arg_2 = input_7; [L81] SORT_5 var_20 = var_20_arg_0 ? var_20_arg_1 : var_20_arg_2; [L82] var_20 = var_20 & mask_SORT_5 [L83] SORT_5 var_25_arg_0 = var_20; [L84] SORT_5 var_25_arg_1 = var_24; [L85] SORT_1 var_25 = var_25_arg_0 == var_25_arg_1; [L86] SORT_1 var_26_arg_0 = var_25; [L87] SORT_1 var_26 = ~var_26_arg_0; [L88] SORT_5 var_22_arg_0 = var_20; [L89] SORT_5 var_22_arg_1 = var_21; [L90] SORT_1 var_22 = var_22_arg_0 == var_22_arg_1; [L91] SORT_1 var_23_arg_0 = var_22; [L92] SORT_1 var_23 = ~var_23_arg_0; [L93] var_23 = var_23 & mask_SORT_1 [L94] SORT_1 var_28_arg_0 = var_26; [L95] SORT_1 var_28_arg_1 = var_23; [L96] SORT_27 var_28 = ((SORT_27)var_28_arg_0 << 1) | var_28_arg_1; [L97] var_28 = var_28 & mask_SORT_27 [L98] SORT_27 var_29_arg_0 = var_28; [L99] SORT_1 var_29 = var_29_arg_0 == mask_SORT_27; [L100] SORT_1 var_32_arg_0 = state_18; [L101] SORT_5 var_32_arg_1 = state_30; [L102] SORT_5 var_32_arg_2 = input_7; [L103] SORT_5 var_32 = var_32_arg_0 ? var_32_arg_1 : var_32_arg_2; [L104] var_32 = var_32 & mask_SORT_5 [L105] SORT_5 var_33_arg_0 = var_32; [L106] SORT_5 var_33_arg_1 = var_21; [L107] SORT_1 var_33 = var_33_arg_0 == var_33_arg_1; [L108] SORT_1 var_34_arg_0 = var_33; [L109] SORT_1 var_34 = ~var_34_arg_0; [L110] var_34 = var_34 & mask_SORT_1 [L111] SORT_1 var_35_arg_0 = var_26; [L112] SORT_1 var_35_arg_1 = var_34; [L113] SORT_27 var_35 = ((SORT_27)var_35_arg_0 << 1) | var_35_arg_1; [L114] var_35 = var_35 & mask_SORT_27 [L115] SORT_27 var_36_arg_0 = var_35; [L116] SORT_1 var_36 = var_36_arg_0 == mask_SORT_27; [L117] SORT_1 var_37_arg_0 = var_29; [L118] SORT_1 var_37_arg_1 = var_36; [L119] SORT_1 var_37 = var_37_arg_0 == var_37_arg_1; [L120] SORT_1 var_38_arg_0 = var_14; [L121] SORT_1 var_38_arg_1 = var_37; [L122] SORT_1 var_38 = var_38_arg_0 | var_38_arg_1; [L123] SORT_1 var_42_arg_0 = var_38; [L124] SORT_1 var_42 = ~var_42_arg_0; [L125] SORT_1 var_43_arg_0 = var_41; [L126] SORT_1 var_43_arg_1 = var_42; [L127] SORT_1 var_43 = var_43_arg_0 & var_43_arg_1; [L128] var_43 = var_43 & mask_SORT_1 [L129] SORT_1 bad_44_arg_0 = var_43; [L130] CALL __VERIFIER_assert(!(bad_44_arg_0)) [L20] COND TRUE !(cond) VAL [cond=0, unknown-#in~cond-unknown=0] [L20] reach_error() VAL [cond=0, unknown-#in~cond-unknown=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 0.3s 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 [2022-11-23 14:54:04,972 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/config/TaipanReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW --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 acd2617a3edb91b922a4870120767d3ac0938743fb410499403adcdf871f8fcc --- 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-4e7fbc6 [2022-11-23 14:54:07,268 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 14:54:07,271 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 14:54:07,306 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 14:54:07,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 14:54:07,314 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 14:54:07,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 14:54:07,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 14:54:07,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 14:54:07,327 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 14:54:07,328 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 14:54:07,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 14:54:07,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 14:54:07,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 14:54:07,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 14:54:07,341 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 14:54:07,343 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 14:54:07,344 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 14:54:07,346 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 14:54:07,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 14:54:07,350 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 14:54:07,351 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 14:54:07,352 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 14:54:07,353 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 14:54:07,357 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 14:54:07,357 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 14:54:07,358 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 14:54:07,359 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 14:54:07,359 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 14:54:07,360 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 14:54:07,360 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 14:54:07,361 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 14:54:07,362 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 14:54:07,363 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 14:54:07,372 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 14:54:07,373 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 14:54:07,374 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 14:54:07,374 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 14:54:07,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 14:54:07,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 14:54:07,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 14:54:07,377 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/config/svcomp-Reach-64bit-Taipan_Bitvector.epf [2022-11-23 14:54:07,416 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 14:54:07,416 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 14:54:07,416 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 14:54:07,416 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 14:54:07,417 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 14:54:07,417 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 14:54:07,417 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-23 14:54:07,418 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-23 14:54:07,418 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-23 14:54:07,418 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-23 14:54:07,418 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-23 14:54:07,418 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-23 14:54:07,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 14:54:07,419 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 14:54:07,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 14:54:07,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 14:54:07,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 14:54:07,420 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-23 14:54:07,420 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-23 14:54:07,421 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-23 14:54:07,421 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 14:54:07,421 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 14:54:07,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 14:54:07,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 14:54:07,422 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 14:54:07,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 14:54:07,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:07,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 14:54:07,423 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 14:54:07,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 14:54:07,427 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-23 14:54:07,427 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-23 14:54:07,428 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 14:54:07,428 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-23 14:54:07,428 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 14:54:07,428 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_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> acd2617a3edb91b922a4870120767d3ac0938743fb410499403adcdf871f8fcc [2022-11-23 14:54:07,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 14:54:07,872 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 14:54:07,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 14:54:07,881 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 14:54:07,881 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 14:54:07,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2022-11-23 14:54:11,043 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 14:54:11,308 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 14:54:11,309 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c [2022-11-23 14:54:11,316 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data/36493cfd2/e21d0006ce944c4da15dd7a0be05ff39/FLAG238c90cea [2022-11-23 14:54:11,344 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/data/36493cfd2/e21d0006ce944c4da15dd7a0be05ff39 [2022-11-23 14:54:11,346 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 14:54:11,347 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 14:54:11,348 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:11,349 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 14:54:11,353 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 14:54:11,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e56f4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11, skipping insertion in model container [2022-11-23 14:54:11,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,361 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 14:54:11,384 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 14:54:11,524 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_dc5add52-2753-4d4c-9025-86e25a015dff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c[1107,1120] [2022-11-23 14:54:11,603 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:11,611 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 14:54:11,633 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_dc5add52-2753-4d4c-9025-86e25a015dff/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal51.c[1107,1120] [2022-11-23 14:54:11,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 14:54:11,700 INFO L208 MainTranslator]: Completed translation [2022-11-23 14:54:11,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11 WrapperNode [2022-11-23 14:54:11,701 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 14:54:11,702 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:11,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 14:54:11,703 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 14:54:11,711 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,764 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 184 [2022-11-23 14:54:11,768 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 14:54:11,769 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 14:54:11,770 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 14:54:11,770 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 14:54:11,779 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,801 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,801 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,807 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,829 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 14:54:11,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 14:54:11,833 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 14:54:11,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 14:54:11,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (1/1) ... [2022-11-23 14:54:11,848 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 14:54:11,862 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:11,879 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 14:54:11,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 14:54:11,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 14:54:11,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 14:54:12,018 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 14:54:12,020 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 14:54:12,376 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 14:54:12,383 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 14:54:12,383 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-23 14:54:12,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:12 BoogieIcfgContainer [2022-11-23 14:54:12,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 14:54:12,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 14:54:12,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 14:54:12,406 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 14:54:12,406 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:54:11" (1/3) ... [2022-11-23 14:54:12,407 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c4f9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:12, skipping insertion in model container [2022-11-23 14:54:12,407 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:54:11" (2/3) ... [2022-11-23 14:54:12,408 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61c4f9af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:54:12, skipping insertion in model container [2022-11-23 14:54:12,408 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:12" (3/3) ... [2022-11-23 14:54:12,409 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal51.c [2022-11-23 14:54:12,442 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 14:54:12,442 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-23 14:54:12,490 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 14:54:12,497 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;@469e7e6c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 14:54:12,498 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-23 14:54:12,504 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) [2022-11-23 14:54:12,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-23 14:54:12,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:12,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-23 14:54:12,516 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:12,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:12,528 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-23 14:54:12,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:54:12,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1044892358] [2022-11-23 14:54:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:12,547 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 [2022-11-23 14:54:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:54:12,552 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:54:12,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:54:12,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:12,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-23 14:54:12,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:12,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:12,981 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-23 14:54:12,982 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:54:12,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1044892358] [2022-11-23 14:54:12,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1044892358] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 14:54:12,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 14:54:12,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-23 14:54:12,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023176763] [2022-11-23 14:54:12,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 14:54:12,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-23 14:54:12,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:54:13,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-23 14:54:13,037 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-23 14:54:13,039 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) [2022-11-23 14:54:13,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:13,113 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-23 14:54:13,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-23 14:54:13,137 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 [2022-11-23 14:54:13,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:13,145 INFO L225 Difference]: With dead ends: 20 [2022-11-23 14:54:13,146 INFO L226 Difference]: Without dead ends: 11 [2022-11-23 14:54:13,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-23 14:54:13,153 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:13,154 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-23 14:54:13,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-23 14:54:13,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-23 14:54:13,185 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) [2022-11-23 14:54:13,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-23 14:54:13,187 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-23 14:54:13,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:13,188 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-23 14:54:13,188 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) [2022-11-23 14:54:13,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-23 14:54:13,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-23 14:54:13,189 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:13,189 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-23 14:54:13,206 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:54:13,389 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:54:13,390 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:13,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:13,390 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-23 14:54:13,391 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:54:13,391 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2133461303] [2022-11-23 14:54:13,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:13,392 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 [2022-11-23 14:54:13,392 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:54:13,393 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:54:13,397 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 [2022-11-23 14:54:13,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:13,571 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 53 conjunts are in the unsatisfiable core [2022-11-23 14:54:13,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:14,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:14,311 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:16,911 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:54:16,911 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2133461303] [2022-11-23 14:54:16,912 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2133461303] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:16,912 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [393869812] [2022-11-23 14:54:16,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:16,913 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:54:16,913 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:54:16,919 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:54:16,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Waiting until timeout for monitored process [2022-11-23 14:54:17,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:17,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 66 conjunts are in the unsatisfiable core [2022-11-23 14:54:17,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:17,645 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:17,645 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:19,392 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:19,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [393869812] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:19,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955993580] [2022-11-23 14:54:19,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 14:54:19,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:19,395 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:19,400 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:54:19,423 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-11-23 14:54:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 14:54:19,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 61 conjunts are in the unsatisfiable core [2022-11-23 14:54:19,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:19,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:19,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:21,544 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:21,544 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955993580] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:21,544 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:54:21,545 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 6, 5, 6, 6] total 12 [2022-11-23 14:54:21,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793126654] [2022-11-23 14:54:21,546 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:54:21,547 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-11-23 14:54:21,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:54:21,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-11-23 14:54:21,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2022-11-23 14:54:21,548 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 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) [2022-11-23 14:54:21,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:54:21,740 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-23 14:54:21,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-23 14:54:21,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-23 14:54:21,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:54:21,742 INFO L225 Difference]: With dead ends: 16 [2022-11-23 14:54:21,742 INFO L226 Difference]: Without dead ends: 14 [2022-11-23 14:54:21,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 28 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=66, Invalid=144, Unknown=0, NotChecked=0, Total=210 [2022-11-23 14:54:21,744 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 17 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-23 14:54:21,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 25 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-23 14:54:21,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-23 14:54:21,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-23 14:54:21,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-23 14:54:21,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-23 14:54:21,749 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-23 14:54:21,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:54:21,749 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-23 14:54:21,749 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 1.9166666666666667) internal successors, (23), 12 states have internal predecessors, (23), 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) [2022-11-23 14:54:21,749 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-23 14:54:21,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-23 14:54:21,750 INFO L187 NwaCegarLoop]: Found error trace [2022-11-23 14:54:21,750 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-23 14:54:21,763 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-23 14:54:21,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (4)] Forceful destruction successful, exit code 0 [2022-11-23 14:54:22,168 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-11-23 14:54:22,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:22,364 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-23 14:54:22,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 14:54:22,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-23 14:54:22,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-23 14:54:22,366 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [123750967] [2022-11-23 14:54:22,366 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:54:22,366 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 [2022-11-23 14:54:22,367 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/mathsat [2022-11-23 14:54:22,368 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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) [2022-11-23 14:54:22,372 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 (6)] Waiting until timeout for monitored process [2022-11-23 14:54:22,521 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:54:22,522 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:54:22,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 116 conjunts are in the unsatisfiable core [2022-11-23 14:54:22,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:24,327 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:24,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:43,091 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:43,093 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-23 14:54:43,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [123750967] [2022-11-23 14:54:43,093 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [123750967] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:43,093 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1059543853] [2022-11-23 14:54:43,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:54:43,094 INFO L173 SolverBuilder]: Constructing external solver with command: cvc4 --incremental --print-success --lang smt [2022-11-23 14:54:43,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 [2022-11-23 14:54:43,096 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) [2022-11-23 14:54:43,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Waiting until timeout for monitored process [2022-11-23 14:54:43,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:54:43,422 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:54:43,428 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 117 conjunts are in the unsatisfiable core [2022-11-23 14:54:43,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:44,874 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:44,874 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:54:53,083 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:53,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleCvc4 [1059543853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:54:53,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1479102938] [2022-11-23 14:54:53,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-23 14:54:53,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:54:53,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 [2022-11-23 14:54:53,087 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-23 14:54:53,095 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-11-23 14:54:53,231 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-23 14:54:53,231 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-23 14:54:53,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 117 conjunts are in the unsatisfiable core [2022-11-23 14:54:53,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-23 14:54:54,425 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:54:54,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-23 14:55:04,668 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 14:55:04,668 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1479102938] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-23 14:55:04,669 INFO L184 FreeRefinementEngine]: Found 0 perfect and 6 imperfect interpolant sequences. [2022-11-23 14:55:04,669 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7, 7, 7, 7] total 21 [2022-11-23 14:55:04,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2070624779] [2022-11-23 14:55:04,669 INFO L85 oduleStraightlineAll]: Using 6 imperfect interpolants to construct interpolant automaton [2022-11-23 14:55:04,670 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-11-23 14:55:04,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-23 14:55:04,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-11-23 14:55:04,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=359, Unknown=0, NotChecked=0, Total=420 [2022-11-23 14:55:04,671 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 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) [2022-11-23 14:55:05,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-23 14:55:05,303 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2022-11-23 14:55:05,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-23 14:55:05,304 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-23 14:55:05,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-23 14:55:05,304 INFO L225 Difference]: With dead ends: 13 [2022-11-23 14:55:05,304 INFO L226 Difference]: Without dead ends: 0 [2022-11-23 14:55:05,305 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 36 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2022-11-23 14:55:05,306 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 30 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-23 14:55:05,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 11 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-23 14:55:05,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-23 14:55:05,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-23 14:55:05,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-23 14:55:05,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-23 14:55:05,308 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2022-11-23 14:55:05,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-23 14:55:05,308 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-23 14:55:05,308 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 1.8571428571428572) internal successors, (39), 21 states have internal predecessors, (39), 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) [2022-11-23 14:55:05,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-23 14:55:05,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-23 14:55:05,311 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-23 14:55:05,328 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 (6)] Forceful destruction successful, exit code 0 [2022-11-23 14:55:05,518 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt (7)] Forceful destruction successful, exit code 0 [2022-11-23 14:55:05,720 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-11-23 14:55:05,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/cvc4 --incremental --print-success --lang smt,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-23 14:55:05,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-23 14:55:06,194 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-23 14:55:06,195 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 196) the Hoare annotation is: (let ((.cse1 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32))) (.cse11 (= |ULTIMATE.start_main_~var_41~0#1| |ULTIMATE.start_main_~state_12~0#1|)) (.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse2 (= |ULTIMATE.start_main_~mask_SORT_27~0#1| (_ bv3 8))) (.cse6 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_5~0#1|)) (.cse7 (= (_ bv1 8) |ULTIMATE.start_main_~var_41~0#1|)) (.cse13 (= (_ bv0 8) |ULTIMATE.start_main_~state_18~0#1|)) (.cse8 (= (_ bv1 8) |ULTIMATE.start_main_~var_24~0#1|)) (.cse9 (= (_ bv2 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse10 (= |ULTIMATE.start_main_~var_15~0#1| (_ bv0 8))) (.cse12 (= |ULTIMATE.start_main_~var_11~0#1| (_ bv0 8)))) (or (let ((.cse4 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) (and .cse0 .cse1 .cse2 (exists ((|ULTIMATE.start_main_~var_32_arg_2~0#1| (_ BitVec 8))) (let ((.cse3 ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_32_arg_2~0#1|))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_5~0#1|))))) (and (= .cse3 |ULTIMATE.start_main_~var_32~0#1|) (= .cse3 |ULTIMATE.start_main_~var_20~0#1|)))) (exists ((|v_ULTIMATE.start_main_#t~nondet4#1_7| (_ BitVec 8))) (= |ULTIMATE.start_main_~input_2~0#1| ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet4#1_7|) .cse4)))) (exists ((|ULTIMATE.start_main_~var_46_arg_1~0#1| (_ BitVec 8))) (let ((.cse5 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_46_arg_1~0#1|)))))))))))) (and (= .cse5 |ULTIMATE.start_main_~state_16~0#1|) (= .cse5 |ULTIMATE.start_main_~state_30~0#1|)))) .cse6 .cse7 .cse8 (= ((_ extract 7 0) (bvand (_ bv1 32) .cse4)) |ULTIMATE.start_main_~state_18~0#1|) .cse9 .cse10 .cse11 .cse12 (exists ((|v_ULTIMATE.start_main_#t~nondet5#1_7| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) |v_ULTIMATE.start_main_#t~nondet5#1_7|) .cse4)) |ULTIMATE.start_main_~input_3~0#1|)))) (and .cse0 .cse1 .cse2 .cse6 .cse7 .cse13 .cse8 .cse9 .cse10 .cse11 .cse12) (and .cse0 .cse2 (exists ((|ULTIMATE.start_main_~var_50_arg_1~0#1| (_ BitVec 8))) (let ((.cse14 ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_50_arg_1~0#1|)))))))))))) (and (= .cse14 |ULTIMATE.start_main_~state_16~0#1|) (= .cse14 |ULTIMATE.start_main_~state_30~0#1|)))) .cse6 (= (_ bv0 8) |ULTIMATE.start_main_~state_30~0#1|) .cse7 (= |ULTIMATE.start_main_~var_11~0#1| |ULTIMATE.start_main_~state_12~0#1|) .cse13 .cse8 .cse9 .cse10 .cse12))) [2022-11-23 14:55:06,195 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 196) no Hoare annotation was computed. [2022-11-23 14:55:06,195 INFO L895 garLoopResultBuilder]: At program point L197(lines 22 198) the Hoare annotation is: false [2022-11-23 14:55:06,195 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-23 14:55:06,196 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-23 14:55:06,196 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-23 14:55:06,196 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-23 14:55:06,196 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-23 14:55:06,196 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-23 14:55:06,196 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-23 14:55:06,199 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1] [2022-11-23 14:55:06,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-23 14:55:06,209 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,210 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,210 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-11-23 14:55:06,210 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,210 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,210 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-11-23 14:55:06,211 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,211 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,223 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,227 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,227 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-11-23 14:55:06,227 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,228 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,228 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-11-23 14:55:06,228 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,228 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:55:06 BoogieIcfgContainer [2022-11-23 14:55:06,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-23 14:55:06,236 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-23 14:55:06,236 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-23 14:55:06,236 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-23 14:55:06,237 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:54:12" (3/4) ... [2022-11-23 14:55:06,240 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-23 14:55:06,255 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-23 14:55:06,257 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-23 14:55:06,258 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-23 14:55:06,284 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && mask_SORT_27 == 3bv8) && (\exists ULTIMATE.start_main_~var_32_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_32_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_5))[7:0] == var_32 && ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_32_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_5))[7:0] == var_20)) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_7 : bv8 :: input_2 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet4#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && (\exists ULTIMATE.start_main_~var_46_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_30)) && 7bv8 == mask_SORT_5) && 1bv8 == var_41) && 1bv8 == var_24) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && 2bv8 == var_21) && var_15 == 0bv8) && var_41 == state_12) && var_11 == 0bv8) && (\exists v_ULTIMATE.start_main_#t~nondet5#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet5#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == input_3)) || ((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && mask_SORT_27 == 3bv8) && 7bv8 == mask_SORT_5) && 1bv8 == var_41) && 0bv8 == state_18) && 1bv8 == var_24) && 2bv8 == var_21) && var_15 == 0bv8) && var_41 == state_12) && var_11 == 0bv8)) || (((((((((((1bv8 == mask_SORT_1 && mask_SORT_27 == 3bv8) && (\exists ULTIMATE.start_main_~var_50_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_50_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_50_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_30)) && 7bv8 == mask_SORT_5) && 0bv8 == state_30) && 1bv8 == var_41) && var_11 == state_12) && 0bv8 == state_18) && 1bv8 == var_24) && 2bv8 == var_21) && var_15 == 0bv8) && var_11 == 0bv8) [2022-11-23 14:55:06,315 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/witness.graphml [2022-11-23 14:55:06,315 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-23 14:55:06,316 INFO L158 Benchmark]: Toolchain (without parser) took 54968.85ms. Allocated memory was 71.3MB in the beginning and 377.5MB in the end (delta: 306.2MB). Free memory was 41.0MB in the beginning and 286.8MB in the end (delta: -245.9MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,316 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-23 14:55:06,317 INFO L158 Benchmark]: CACSL2BoogieTranslator took 353.34ms. Allocated memory is still 71.3MB. Free memory was 40.8MB in the beginning and 48.4MB in the end (delta: -7.6MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,317 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.62ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 46.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,317 INFO L158 Benchmark]: Boogie Preprocessor took 62.51ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 44.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,318 INFO L158 Benchmark]: RCFGBuilder took 553.12ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 44.2MB in the beginning and 73.1MB in the end (delta: -28.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,318 INFO L158 Benchmark]: TraceAbstraction took 53847.50ms. Allocated memory was 100.7MB in the beginning and 377.5MB in the end (delta: 276.8MB). Free memory was 72.6MB in the beginning and 291.0MB in the end (delta: -218.5MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,319 INFO L158 Benchmark]: Witness Printer took 79.60ms. Allocated memory is still 377.5MB. Free memory was 291.0MB in the beginning and 286.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-23 14:55:06,321 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 71.3MB. Free memory was 48.5MB in the beginning and 48.4MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 353.34ms. Allocated memory is still 71.3MB. Free memory was 40.8MB in the beginning and 48.4MB in the end (delta: -7.6MB). Peak memory consumption was 14.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.62ms. Allocated memory is still 71.3MB. Free memory was 48.4MB in the beginning and 46.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.51ms. Allocated memory is still 71.3MB. Free memory was 46.0MB in the beginning and 44.2MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.12ms. Allocated memory was 71.3MB in the beginning and 100.7MB in the end (delta: 29.4MB). Free memory was 44.2MB in the beginning and 73.1MB in the end (delta: -28.9MB). Peak memory consumption was 16.9MB. Max. memory is 16.1GB. * TraceAbstraction took 53847.50ms. Allocated memory was 100.7MB in the beginning and 377.5MB in the end (delta: 276.8MB). Free memory was 72.6MB in the beginning and 291.0MB in the end (delta: -218.5MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 79.60ms. Allocated memory is still 377.5MB. Free memory was 291.0MB in the beginning and 286.8MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 53.7s, OverallIterations: 3, TraceHistogramMax: 3, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 51 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 51 mSDsluCounter, 49 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 11 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 115 GetRequests, 66 SyntacticMatches, 9 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 189 ImplicationChecksByTransitivity, 12.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=2, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 204 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 13 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 49.5s InterpolantComputationTime, 62 NumberOfCodeBlocks, 62 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 106 ConstructedInterpolants, 42 QuantifiedInterpolants, 12515 SizeOfPredicates, 610 NumberOfNonLiveVariables, 1629 ConjunctsInSsa, 546 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 0/54 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 62]: Loop Invariant [2022-11-23 14:55:06,339 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-11-23 14:55:06,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,340 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-11-23 14:55:06,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,341 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,342 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,342 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_32_arg_2~0#1,QUANTIFIED] [2022-11-23 14:55:06,343 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet4#1_7,QUANTIFIED] [2022-11-23 14:55:06,343 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,343 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_46_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,343 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_ULTIMATE.start_main_#t~nondet5#1_7,QUANTIFIED] [2022-11-23 14:55:06,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] [2022-11-23 14:55:06,344 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_50_arg_1~0#1,QUANTIFIED] Derived loop invariant: (((((((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && mask_SORT_27 == 3bv8) && (\exists ULTIMATE.start_main_~var_32_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_32_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_5))[7:0] == var_32 && ~bvand32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_32_arg_2~0#1)[7:0]), ~zero_extendFrom8To32(mask_SORT_5))[7:0] == var_20)) && (\exists v_ULTIMATE.start_main_#t~nondet4#1_7 : bv8 :: input_2 == ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet4#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0])) && (\exists ULTIMATE.start_main_~var_46_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_46_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_30)) && 7bv8 == mask_SORT_5) && 1bv8 == var_41) && 1bv8 == var_24) && ~bvand32(1bv32, ~zero_extendFrom8To32(mask_SORT_1))[7:0] == state_18) && 2bv8 == var_21) && var_15 == 0bv8) && var_41 == state_12) && var_11 == 0bv8) && (\exists v_ULTIMATE.start_main_#t~nondet5#1_7 : bv8 :: ~bvand32(~zero_extendFrom8To32(v_ULTIMATE.start_main_#t~nondet5#1_7), ~zero_extendFrom8To32(mask_SORT_1))[7:0] == input_3)) || ((((((((((1bv8 == mask_SORT_1 && cond == 1bv32) && mask_SORT_27 == 3bv8) && 7bv8 == mask_SORT_5) && 1bv8 == var_41) && 0bv8 == state_18) && 1bv8 == var_24) && 2bv8 == var_21) && var_15 == 0bv8) && var_41 == state_12) && var_11 == 0bv8)) || (((((((((((1bv8 == mask_SORT_1 && mask_SORT_27 == 3bv8) && (\exists ULTIMATE.start_main_~var_50_arg_1~0#1 : bv8 :: ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_50_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_16 && ~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_50_arg_1~0#1)[7:0])[7:0])[7:0])[7:0])[7:0] == state_30)) && 7bv8 == mask_SORT_5) && 0bv8 == state_30) && 1bv8 == var_41) && var_11 == state_12) && 0bv8 == state_18) && 1bv8 == var_24) && 2bv8 == var_21) && var_15 == 0bv8) && var_11 == 0bv8) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 RESULT: Ultimate proved your program to be correct! [2022-11-23 14:55:06,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc5add52-2753-4d4c-9025-86e25a015dff/bin/utaipan-Q6hlc19bkW/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 Writing output log to file Ultimate.log Result: TRUE