./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:44:53,848 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:44:53,850 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:44:53,892 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:44:53,894 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:44:53,898 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:44:53,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:44:53,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:44:53,904 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:44:53,907 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:44:53,908 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:44:53,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:44:53,909 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:44:53,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:44:53,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:44:53,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:44:53,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:44:53,914 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:44:53,919 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:44:53,926 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:44:53,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:44:53,932 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:44:53,935 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:44:53,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:44:53,945 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:44:53,946 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:44:53,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:44:53,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:44:53,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:44:53,950 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:44:53,950 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:44:53,951 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:44:53,953 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:44:53,954 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:44:53,955 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:44:53,955 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:44:53,956 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:44:53,956 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:44:53,957 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:44:53,958 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:44:53,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:44:53,960 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-25 17:44:53,990 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:44:53,990 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:44:53,991 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:44:53,991 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:44:53,992 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:44:53,992 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:44:53,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:44:53,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:44:53,993 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:44:53,993 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:44:53,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:44:53,994 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:44:53,994 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:44:53,994 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:44:53,994 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:44:53,995 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:44:53,995 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:44:53,995 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:44:53,995 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:44:53,995 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:44:53,996 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:44:53,996 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:53,996 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:44:53,996 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:44:53,996 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:44:53,997 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:44:53,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:44:53,997 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:44:53,997 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:44:53,997 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:44:53,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:44:53,998 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 [2022-11-25 17:44:54,267 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:44:54,305 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:44:54,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:44:54,310 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:44:54,311 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:44:54,312 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-25 17:44:57,365 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:44:57,688 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:44:57,689 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-25 17:44:57,716 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data/0bfada4cc/7b2235c3f39640ef8e10af3fc28981b6/FLAGfeb56577c [2022-11-25 17:44:57,731 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data/0bfada4cc/7b2235c3f39640ef8e10af3fc28981b6 [2022-11-25 17:44:57,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:44:57,735 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:44:57,737 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:57,737 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:44:57,746 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:44:57,747 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:57" (1/1) ... [2022-11-25 17:44:57,748 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ffb757d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:57, skipping insertion in model container [2022-11-25 17:44:57,748 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:44:57" (1/1) ... [2022-11-25 17:44:57,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:44:57,821 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:44:58,037 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_e957afcd-291d-4073-a6a4-d9c31e8eea7a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-25 17:44:58,519 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:58,536 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:44:58,556 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_e957afcd-291d-4073-a6a4-d9c31e8eea7a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-25 17:44:58,761 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:44:58,775 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:44:58,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58 WrapperNode [2022-11-25 17:44:58,777 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:44:58,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:58,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:44:58,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:44:58,787 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:58,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,087 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2317 [2022-11-25 17:44:59,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:44:59,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:44:59,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:44:59,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:44:59,099 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,117 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,185 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,206 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,270 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:44:59,272 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:44:59,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:44:59,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:44:59,275 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (1/1) ... [2022-11-25 17:44:59,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:44:59,293 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:44:59,313 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:44:59,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:44:59,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:44:59,368 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:44:59,929 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:44:59,931 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:53:10,717 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:53:10,725 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:53:10,725 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:53:10,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:10 BoogieIcfgContainer [2022-11-25 17:53:10,740 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:53:10,742 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:53:10,742 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:53:10,746 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:53:10,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:44:57" (1/3) ... [2022-11-25 17:53:10,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d89aec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:10, skipping insertion in model container [2022-11-25 17:53:10,752 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:44:58" (2/3) ... [2022-11-25 17:53:10,752 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d89aec0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:10, skipping insertion in model container [2022-11-25 17:53:10,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:10" (3/3) ... [2022-11-25 17:53:10,755 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-25 17:53:10,780 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:53:10,781 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:53:10,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:53:10,867 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@34f8e0ce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:53:10,868 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:53:10,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:53:10,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:53:10,880 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:10,881 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:53:10,881 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:10,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:53:10,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:10,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819339572] [2022-11-25 17:53:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:10,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:11,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:53:11,334 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 17:53:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 17:53:11,568 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 17:53:11,570 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 17:53:11,571 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 17:53:11,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:53:11,582 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 17:53:11,586 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:53:11,629 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-25 17:53:11,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:53:11 BoogieIcfgContainer [2022-11-25 17:53:11,642 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:53:11,643 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:53:11,643 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:53:11,643 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:53:11,644 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:10" (3/4) ... [2022-11-25 17:53:11,647 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 17:53:11,647 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:53:11,648 INFO L158 Benchmark]: Toolchain (without parser) took 493913.19ms. Allocated memory was 163.6MB in the beginning and 952.1MB in the end (delta: 788.5MB). Free memory was 116.3MB in the beginning and 655.1MB in the end (delta: -538.9MB). Peak memory consumption was 251.5MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,649 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 117.4MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:53:11,650 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1040.75ms. Allocated memory is still 163.6MB. Free memory was 115.9MB in the beginning and 92.6MB in the end (delta: 23.3MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,650 INFO L158 Benchmark]: Boogie Procedure Inliner took 309.79ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 105.8MB in the end (delta: -13.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,651 INFO L158 Benchmark]: Boogie Preprocessor took 181.36ms. Allocated memory is still 163.6MB. Free memory was 105.8MB in the beginning and 92.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,652 INFO L158 Benchmark]: RCFGBuilder took 491468.01ms. Allocated memory was 163.6MB in the beginning and 952.1MB in the end (delta: 788.5MB). Free memory was 92.2MB in the beginning and 713.9MB in the end (delta: -621.7MB). Peak memory consumption was 576.5MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,652 INFO L158 Benchmark]: TraceAbstraction took 900.49ms. Allocated memory is still 952.1MB. Free memory was 712.8MB in the beginning and 656.2MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,653 INFO L158 Benchmark]: Witness Printer took 4.44ms. Allocated memory is still 952.1MB. Free memory was 656.2MB in the beginning and 655.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:53:11,656 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 117.4MB. Free memory is still 66.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1040.75ms. Allocated memory is still 163.6MB. Free memory was 115.9MB in the beginning and 92.6MB in the end (delta: 23.3MB). Peak memory consumption was 46.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 309.79ms. Allocated memory is still 163.6MB. Free memory was 92.6MB in the beginning and 105.8MB in the end (delta: -13.2MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 181.36ms. Allocated memory is still 163.6MB. Free memory was 105.8MB in the beginning and 92.2MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 491468.01ms. Allocated memory was 163.6MB in the beginning and 952.1MB in the end (delta: 788.5MB). Free memory was 92.2MB in the beginning and 713.9MB in the end (delta: -621.7MB). Peak memory consumption was 576.5MB. Max. memory is 16.1GB. * TraceAbstraction took 900.49ms. Allocated memory is still 952.1MB. Free memory was 712.8MB in the beginning and 656.2MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 16.1GB. * Witness Printer took 4.44ms. Allocated memory is still 952.1MB. Free memory was 656.2MB in the beginning and 655.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 299, overapproximation of bitwiseAnd at line 215. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_22 = 0; [L39] const SORT_4 var_85 = 1; [L40] const SORT_4 var_86 = 0; [L41] const SORT_2 var_95 = 0; [L42] const SORT_2 var_96 = 255; [L43] const SORT_2 var_108 = 1; [L44] const SORT_2 var_132 = 2; [L45] const SORT_3 var_169 = 0; [L46] const SORT_4 var_337 = 3; [L47] const SORT_2 var_348 = 3; [L49] SORT_1 input_99; [L50] SORT_1 input_101; [L51] SORT_1 input_103; [L52] SORT_1 input_104; [L53] SORT_1 input_105; [L54] SORT_1 input_107; [L55] SORT_1 input_118; [L56] SORT_1 input_119; [L57] SORT_1 input_121; [L58] SORT_1 input_130; [L59] SORT_1 input_131; [L60] SORT_1 input_135; [L61] SORT_1 input_145; [L62] SORT_1 input_146; [L63] SORT_1 input_147; [L64] SORT_1 input_153; [L65] SORT_1 input_154; [L66] SORT_1 input_155; [L67] SORT_1 input_156; [L68] SORT_1 input_157; [L69] SORT_1 input_158; [L70] SORT_1 input_168; [L71] SORT_1 input_176; [L72] SORT_1 input_183; [L73] SORT_1 input_191; [L74] SORT_1 input_193; [L75] SORT_1 input_197; [L76] SORT_1 input_199; [L77] SORT_1 input_208; [L78] SORT_1 input_222; [L79] SORT_1 input_233; [L80] SORT_1 input_235; [L81] SORT_1 input_239; [L82] SORT_1 input_241; [L83] SORT_1 input_250; [L84] SORT_1 input_264; [L85] SORT_1 input_275; [L86] SORT_1 input_277; [L87] SORT_1 input_281; [L88] SORT_1 input_283; [L89] SORT_1 input_292; [L90] SORT_1 input_306; [L92] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L93] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L94] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L95] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L96] SORT_2 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L97] SORT_2 state_16 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L98] SORT_2 state_18 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L99] SORT_2 state_20 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L100] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L101] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L102] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L103] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L104] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L106] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L108] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L109] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L110] SORT_1 state_43 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_1 state_45 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L112] SORT_1 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L113] SORT_1 state_49 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L114] SORT_1 state_51 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L115] SORT_1 state_53 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_55 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L118] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L119] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L122] SORT_1 state_67 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_1 state_69 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L125] SORT_1 state_73 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_1 state_75 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L127] SORT_1 state_77 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_1 state_79 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L129] SORT_1 state_81 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L130] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_2 init_7_arg_1 = var_5; [L133] state_6 = init_7_arg_1 [L134] SORT_2 init_9_arg_1 = var_5; [L135] state_8 = init_9_arg_1 [L136] SORT_2 init_11_arg_1 = var_5; [L137] state_10 = init_11_arg_1 [L138] SORT_2 init_13_arg_1 = var_5; [L139] state_12 = init_13_arg_1 [L140] SORT_2 init_15_arg_1 = var_5; [L141] state_14 = init_15_arg_1 [L142] SORT_2 init_17_arg_1 = var_5; [L143] state_16 = init_17_arg_1 [L144] SORT_2 init_19_arg_1 = var_5; [L145] state_18 = init_19_arg_1 [L146] SORT_2 init_21_arg_1 = var_5; [L147] state_20 = init_21_arg_1 [L148] SORT_1 init_24_arg_1 = var_22; [L149] state_23 = init_24_arg_1 [L150] SORT_1 init_26_arg_1 = var_22; [L151] state_25 = init_26_arg_1 [L152] SORT_1 init_28_arg_1 = var_22; [L153] state_27 = init_28_arg_1 [L154] SORT_1 init_30_arg_1 = var_22; [L155] state_29 = init_30_arg_1 [L156] SORT_1 init_32_arg_1 = var_22; [L157] state_31 = init_32_arg_1 [L158] SORT_1 init_34_arg_1 = var_22; [L159] state_33 = init_34_arg_1 [L160] SORT_1 init_36_arg_1 = var_22; [L161] state_35 = init_36_arg_1 [L162] SORT_1 init_38_arg_1 = var_22; [L163] state_37 = init_38_arg_1 [L164] SORT_1 init_40_arg_1 = var_22; [L165] state_39 = init_40_arg_1 [L166] SORT_1 init_42_arg_1 = var_22; [L167] state_41 = init_42_arg_1 [L168] SORT_1 init_44_arg_1 = var_22; [L169] state_43 = init_44_arg_1 [L170] SORT_1 init_46_arg_1 = var_22; [L171] state_45 = init_46_arg_1 [L172] SORT_1 init_48_arg_1 = var_22; [L173] state_47 = init_48_arg_1 [L174] SORT_1 init_50_arg_1 = var_22; [L175] state_49 = init_50_arg_1 [L176] SORT_1 init_52_arg_1 = var_22; [L177] state_51 = init_52_arg_1 [L178] SORT_1 init_54_arg_1 = var_22; [L179] state_53 = init_54_arg_1 [L180] SORT_1 init_56_arg_1 = var_22; [L181] state_55 = init_56_arg_1 [L182] SORT_1 init_58_arg_1 = var_22; [L183] state_57 = init_58_arg_1 [L184] SORT_1 init_60_arg_1 = var_22; [L185] state_59 = init_60_arg_1 [L186] SORT_1 init_62_arg_1 = var_22; [L187] state_61 = init_62_arg_1 [L188] SORT_1 init_64_arg_1 = var_22; [L189] state_63 = init_64_arg_1 [L190] SORT_1 init_66_arg_1 = var_22; [L191] state_65 = init_66_arg_1 [L192] SORT_1 init_68_arg_1 = var_22; [L193] state_67 = init_68_arg_1 [L194] SORT_1 init_70_arg_1 = var_22; [L195] state_69 = init_70_arg_1 [L196] SORT_1 init_72_arg_1 = var_22; [L197] state_71 = init_72_arg_1 [L198] SORT_1 init_74_arg_1 = var_22; [L199] state_73 = init_74_arg_1 [L200] SORT_1 init_76_arg_1 = var_22; [L201] state_75 = init_76_arg_1 [L202] SORT_1 init_78_arg_1 = var_22; [L203] state_77 = init_78_arg_1 [L204] SORT_1 init_80_arg_1 = var_22; [L205] state_79 = init_80_arg_1 [L206] SORT_1 init_82_arg_1 = var_22; [L207] state_81 = init_82_arg_1 [L208] SORT_1 init_84_arg_1 = var_22; [L209] state_83 = init_84_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_15_arg_1=0, init_17_arg_1=0, init_19_arg_1=0, init_21_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_46_arg_1=0, init_48_arg_1=0, init_50_arg_1=0, init_52_arg_1=0, init_54_arg_1=0, init_56_arg_1=0, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_66_arg_1=0, init_68_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_74_arg_1=0, init_76_arg_1=0, init_78_arg_1=0, init_7_arg_1=0, init_80_arg_1=0, init_82_arg_1=0, init_84_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_14=0, state_16=0, state_18=0, state_20=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_45=0, state_47=0, state_49=0, state_51=0, state_53=0, state_55=0, state_57=0, state_59=0, state_6=0, state_61=0, state_63=0, state_65=0, state_67=0, state_69=0, state_71=0, state_73=0, state_75=0, state_77=0, state_79=0, state_8=0, state_81=0, state_83=0, var_108=1, var_132=2, var_169=0, var_22=0, var_337=3, var_348=3, var_5=0, var_85=1, var_86=0, var_95=0, var_96=255] [L212] input_99 = __VERIFIER_nondet_uchar() [L213] input_101 = __VERIFIER_nondet_uchar() [L214] input_103 = __VERIFIER_nondet_uchar() [L215] input_103 = input_103 & mask_SORT_1 [L216] input_104 = __VERIFIER_nondet_uchar() [L217] input_104 = input_104 & mask_SORT_1 [L218] input_105 = __VERIFIER_nondet_uchar() [L219] input_107 = __VERIFIER_nondet_uchar() [L220] input_107 = input_107 & mask_SORT_1 [L221] input_118 = __VERIFIER_nondet_uchar() [L222] input_118 = input_118 & mask_SORT_1 [L223] input_119 = __VERIFIER_nondet_uchar() [L224] input_119 = input_119 & mask_SORT_1 [L225] input_121 = __VERIFIER_nondet_uchar() [L226] input_121 = input_121 & mask_SORT_1 [L227] input_130 = __VERIFIER_nondet_uchar() [L228] input_130 = input_130 & mask_SORT_1 [L229] input_131 = __VERIFIER_nondet_uchar() [L230] input_131 = input_131 & mask_SORT_1 [L231] input_135 = __VERIFIER_nondet_uchar() [L232] input_135 = input_135 & mask_SORT_1 [L233] input_145 = __VERIFIER_nondet_uchar() [L234] input_145 = input_145 & mask_SORT_1 [L235] input_146 = __VERIFIER_nondet_uchar() [L236] input_146 = input_146 & mask_SORT_1 [L237] input_147 = __VERIFIER_nondet_uchar() [L238] input_147 = input_147 & mask_SORT_1 [L239] input_153 = __VERIFIER_nondet_uchar() [L240] input_153 = input_153 & mask_SORT_1 [L241] input_154 = __VERIFIER_nondet_uchar() [L242] input_154 = input_154 & mask_SORT_1 [L243] input_155 = __VERIFIER_nondet_uchar() [L244] input_155 = input_155 & mask_SORT_1 [L245] input_156 = __VERIFIER_nondet_uchar() [L246] input_156 = input_156 & mask_SORT_1 [L247] input_157 = __VERIFIER_nondet_uchar() [L248] input_157 = input_157 & mask_SORT_1 [L249] input_158 = __VERIFIER_nondet_uchar() [L250] input_158 = input_158 & mask_SORT_1 [L251] input_168 = __VERIFIER_nondet_uchar() [L252] input_168 = input_168 & mask_SORT_1 [L253] input_176 = __VERIFIER_nondet_uchar() [L254] input_176 = input_176 & mask_SORT_1 [L255] input_183 = __VERIFIER_nondet_uchar() [L256] input_183 = input_183 & mask_SORT_1 [L257] input_191 = __VERIFIER_nondet_uchar() [L258] input_193 = __VERIFIER_nondet_uchar() [L259] input_197 = __VERIFIER_nondet_uchar() [L260] input_199 = __VERIFIER_nondet_uchar() [L261] input_208 = __VERIFIER_nondet_uchar() [L262] input_222 = __VERIFIER_nondet_uchar() [L263] input_233 = __VERIFIER_nondet_uchar() [L264] input_235 = __VERIFIER_nondet_uchar() [L265] input_239 = __VERIFIER_nondet_uchar() [L266] input_241 = __VERIFIER_nondet_uchar() [L267] input_250 = __VERIFIER_nondet_uchar() [L268] input_264 = __VERIFIER_nondet_uchar() [L269] input_275 = __VERIFIER_nondet_uchar() [L270] input_277 = __VERIFIER_nondet_uchar() [L271] input_281 = __VERIFIER_nondet_uchar() [L272] input_283 = __VERIFIER_nondet_uchar() [L273] input_292 = __VERIFIER_nondet_uchar() [L274] input_306 = __VERIFIER_nondet_uchar() [L277] SORT_1 var_87_arg_0 = state_25; [L278] SORT_4 var_87_arg_1 = var_85; [L279] SORT_4 var_87_arg_2 = var_86; [L280] SORT_4 var_87 = var_87_arg_0 ? var_87_arg_1 : var_87_arg_2; [L281] SORT_1 var_88_arg_0 = state_45; [L282] SORT_4 var_88_arg_1 = var_85; [L283] SORT_4 var_88_arg_2 = var_86; [L284] SORT_4 var_88 = var_88_arg_0 ? var_88_arg_1 : var_88_arg_2; [L285] SORT_4 var_89_arg_0 = var_87; [L286] SORT_4 var_89_arg_1 = var_88; [L287] SORT_4 var_89 = var_89_arg_0 + var_89_arg_1; [L288] SORT_1 var_90_arg_0 = state_65; [L289] SORT_4 var_90_arg_1 = var_85; [L290] SORT_4 var_90_arg_2 = var_86; [L291] SORT_4 var_90 = var_90_arg_0 ? var_90_arg_1 : var_90_arg_2; [L292] SORT_4 var_91_arg_0 = var_89; [L293] SORT_4 var_91_arg_1 = var_90; [L294] SORT_4 var_91 = var_91_arg_0 + var_91_arg_1; [L295] var_91 = var_91 & mask_SORT_4 [L296] SORT_4 var_92_arg_0 = var_91; [L297] SORT_4 var_92_arg_1 = var_85; [L298] SORT_1 var_92 = var_92_arg_0 <= var_92_arg_1; [L299] SORT_1 var_93_arg_0 = ~state_83; [L300] var_93_arg_0 = var_93_arg_0 & mask_SORT_1 [L301] SORT_1 var_93_arg_1 = ~var_92; [L302] var_93_arg_1 = var_93_arg_1 & mask_SORT_1 [L303] SORT_1 var_93 = var_93_arg_0 & var_93_arg_1; [L304] var_93 = var_93 & mask_SORT_1 [L305] SORT_1 bad_94_arg_0 = var_93; [L306] CALL __VERIFIER_assert(!(bad_94_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 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=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 17:53:11,694 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 17:53:14,261 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:53:14,264 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:53:14,319 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:53:14,320 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:53:14,321 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:53:14,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:53:14,324 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:53:14,326 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:53:14,326 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:53:14,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:53:14,335 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:53:14,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:53:14,341 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:53:14,343 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:53:14,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:53:14,352 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:53:14,353 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:53:14,355 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:53:14,356 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:53:14,358 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:53:14,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:53:14,365 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:53:14,366 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:53:14,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:53:14,376 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:53:14,376 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:53:14,377 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:53:14,377 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:53:14,378 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:53:14,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:53:14,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:53:14,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:53:14,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:53:14,382 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:53:14,382 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:53:14,383 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:53:14,391 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:53:14,391 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:53:14,392 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:53:14,393 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:53:14,395 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-25 17:53:14,432 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:53:14,433 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:53:14,434 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:53:14,434 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:53:14,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:53:14,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:53:14,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:53:14,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:53:14,437 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:53:14,437 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:53:14,438 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:53:14,438 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:53:14,438 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:53:14,439 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:53:14,439 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:53:14,439 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 17:53:14,439 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 17:53:14,439 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:53:14,440 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:53:14,440 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:53:14,440 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:53:14,440 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:53:14,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:53:14,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:53:14,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:53:14,441 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:53:14,441 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:53:14,442 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 17:53:14,442 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 17:53:14,442 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:53:14,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:53:14,442 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:53:14,443 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:53:14,443 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 17:53:14,443 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9d60a55b16f5ad6b3999f33f18024cdbc3b20d355c20d37aa6c15f3ec14dde93 [2022-11-25 17:53:14,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:53:14,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:53:14,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:53:14,844 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:53:14,844 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:53:14,845 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-25 17:53:18,038 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:53:18,493 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:53:18,496 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-25 17:53:18,519 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data/47d2b9ccc/7b1885fd16cc4f0b93b6eee6929d1795/FLAG99950be28 [2022-11-25 17:53:18,537 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/data/47d2b9ccc/7b1885fd16cc4f0b93b6eee6929d1795 [2022-11-25 17:53:18,540 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:53:18,541 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:53:18,542 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:53:18,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:53:18,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:53:18,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:18" (1/1) ... [2022-11-25 17:53:18,548 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c30d25f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:18, skipping insertion in model container [2022-11-25 17:53:18,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:53:18" (1/1) ... [2022-11-25 17:53:18,555 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:53:18,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:53:18,806 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_e957afcd-291d-4073-a6a4-d9c31e8eea7a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-25 17:53:19,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:53:19,236 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:53:19,248 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_e957afcd-291d-4073-a6a4-d9c31e8eea7a/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.lamport.2.prop1-func-interl.c[1014,1027] [2022-11-25 17:53:19,440 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:53:19,452 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:53:19,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19 WrapperNode [2022-11-25 17:53:19,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:53:19,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:53:19,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:53:19,455 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:53:19,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,677 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2317 [2022-11-25 17:53:19,677 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:53:19,679 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:53:19,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:53:19,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:53:19,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,690 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,705 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,768 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,794 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,812 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,835 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:53:19,836 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:53:19,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:53:19,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:53:19,837 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (1/1) ... [2022-11-25 17:53:19,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:53:19,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:53:19,876 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:53:19,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:53:19,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:53:19,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:53:20,494 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:53:20,496 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:53:25,165 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:53:25,181 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:53:25,183 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:53:25,185 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:25 BoogieIcfgContainer [2022-11-25 17:53:25,186 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:53:25,188 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:53:25,188 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:53:25,192 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:53:25,192 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:53:18" (1/3) ... [2022-11-25 17:53:25,193 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb1624b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:25, skipping insertion in model container [2022-11-25 17:53:25,193 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:53:19" (2/3) ... [2022-11-25 17:53:25,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb1624b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:53:25, skipping insertion in model container [2022-11-25 17:53:25,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:53:25" (3/3) ... [2022-11-25 17:53:25,197 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.lamport.2.prop1-func-interl.c [2022-11-25 17:53:25,218 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:53:25,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 17:53:25,283 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:53:25,290 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@319a7a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:53:25,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 17:53:25,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:53:25,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:53:25,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:25,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:53:25,303 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:25,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:25,309 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-25 17:53:25,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:53:25,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1373135015] [2022-11-25 17:53:25,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:25,324 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:53:25,324 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:53:25,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:53:25,355 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 17:53:25,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:25,923 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-25 17:53:25,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:53:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:53:26,210 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 17:53:26,211 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:53:26,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1373135015] [2022-11-25 17:53:26,212 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1373135015] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:26,213 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:26,213 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 17:53:26,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149439147] [2022-11-25 17:53:26,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:26,221 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 17:53:26,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:53:26,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 17:53:26,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 17:53:26,264 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:53:26,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:53:26,620 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-25 17:53:26,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 17:53:26,622 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-25 17:53:26,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:53:26,630 INFO L225 Difference]: With dead ends: 20 [2022-11-25 17:53:26,631 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 17:53:26,634 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:53:26,637 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-25 17:53:26,638 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-25 17:53:26,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 17:53:26,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-25 17:53:26,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:53:26,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-25 17:53:26,670 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-25 17:53:26,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:53:26,670 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-25 17:53:26,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:53:26,671 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-25 17:53:26,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 17:53:26,671 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:53:26,672 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-25 17:53:26,690 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:53:26,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:53:26,890 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:53:26,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:26,891 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-25 17:53:26,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:53:26,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [183276809] [2022-11-25 17:53:26,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:26,896 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:53:26,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:53:26,897 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:53:26,928 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 17:53:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:28,154 INFO L263 TraceCheckSpWp]: Trace formula consists of 2056 conjuncts, 194 conjunts are in the unsatisfiable core [2022-11-25 17:53:28,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:53:31,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:53:31,004 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:54:06,700 WARN L233 SmtUtils]: Spent 28.34s on a formula simplification that was a NOOP. DAG size: 408 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:54:07,976 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:07,976 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:54:07,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [183276809] [2022-11-25 17:54:07,982 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [183276809] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:54:07,982 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:54:07,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-25 17:54:07,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572410971] [2022-11-25 17:54:07,983 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:54:07,986 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-25 17:54:07,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:54:07,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-25 17:54:07,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=38, Unknown=1, NotChecked=0, Total=56 [2022-11-25 17:54:07,989 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:15,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:54:15,474 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-25 17:54:15,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:54:15,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-25 17:54:15,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:54:15,475 INFO L225 Difference]: With dead ends: 16 [2022-11-25 17:54:15,475 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 17:54:15,476 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 40.5s TimeCoverageRelationStatistics Valid=37, Invalid=70, Unknown=3, NotChecked=0, Total=110 [2022-11-25 17:54:15,477 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 11 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2022-11-25 17:54:15,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2022-11-25 17:54:15,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 17:54:15,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-25 17:54:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:15,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-25 17:54:15,485 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-25 17:54:15,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:54:15,486 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-25 17:54:15,486 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:54:15,486 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-25 17:54:15,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 17:54:15,487 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:54:15,487 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-25 17:54:15,511 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 17:54:15,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:54:15,705 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:54:15,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:54:15,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-25 17:54:15,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:54:15,712 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [602518060] [2022-11-25 17:54:15,712 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-25 17:54:15,712 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:54:15,712 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:54:15,714 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:54:15,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-25 17:54:17,292 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-25 17:54:17,292 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:54:17,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 3941 conjuncts, 364 conjunts are in the unsatisfiable core [2022-11-25 17:54:17,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:54:29,064 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:54:29,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:54:43,896 WARN L233 SmtUtils]: Spent 13.54s on a formula simplification. DAG size of input: 77 DAG size of output: 72 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:55:32,506 WARN L233 SmtUtils]: Spent 43.63s on a formula simplification that was a NOOP. DAG size: 386 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:56:59,906 WARN L233 SmtUtils]: Spent 1.09m on a formula simplification that was a NOOP. DAG size: 1760 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-25 17:57:02,863 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:57:02,866 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 17:57:02,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [602518060] [2022-11-25 17:57:02,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [602518060] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:57:02,868 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-25 17:57:02,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-25 17:57:02,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305839598] [2022-11-25 17:57:02,869 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-25 17:57:02,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-25 17:57:02,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 17:57:02,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-25 17:57:02,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=63, Unknown=3, NotChecked=0, Total=90 [2022-11-25 17:57:02,874 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:57:16,274 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-25 17:57:27,682 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:57:28,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.10s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-25 17:57:37,647 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:57:41,040 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:57:42,059 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0, 1] [2022-11-25 17:57:44,566 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.25s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-11-25 17:57:44,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:57:44,962 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-25 17:57:44,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-25 17:57:44,962 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 17:57:44,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:57:44,963 INFO L225 Difference]: With dead ends: 19 [2022-11-25 17:57:44,963 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 17:57:44,964 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 177.9s TimeCoverageRelationStatistics Valid=57, Invalid=119, Unknown=6, NotChecked=0, Total=182 [2022-11-25 17:57:44,965 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 21 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 4 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 4 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.8s IncrementalHoareTripleChecker+Time [2022-11-25 17:57:44,966 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 21 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 4 Unknown, 0 Unchecked, 16.8s Time] [2022-11-25 17:57:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 17:57:44,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-25 17:57:44,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:57:44,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-25 17:57:44,980 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-25 17:57:44,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:57:44,981 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-25 17:57:44,981 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 17:57:44,982 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-25 17:57:44,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-25 17:57:44,982 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:57:44,983 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-25 17:57:45,008 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-25 17:57:45,187 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:57:45,187 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 17:57:45,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:57:45,188 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-25 17:57:45,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 17:57:45,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1528392751] [2022-11-25 17:57:45,192 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-25 17:57:45,192 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 17:57:45,192 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 17:57:45,193 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 17:57:45,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e957afcd-291d-4073-a6a4-d9c31e8eea7a/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-25 17:57:47,456 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-25 17:57:47,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-25 17:57:47,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 5826 conjuncts, 954 conjunts are in the unsatisfiable core [2022-11-25 17:57:47,655 INFO L286 TraceCheckSpWp]: Computing forward predicates...