./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8 --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 b6304bbe462b12fec4277ffb860d5f110fe5dc3d9c9a5595a3a99ec48e2713d6 --- 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-2329fc7 [2022-12-13 11:24:53,216 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:24:53,218 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:24:53,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:24:53,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:24:53,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:24:53,231 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:24:53,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:24:53,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:24:53,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:24:53,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:24:53,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:24:53,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:24:53,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:24:53,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:24:53,236 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:24:53,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:24:53,237 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:24:53,238 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:24:53,239 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:24:53,240 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:24:53,241 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:24:53,242 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:24:53,242 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:24:53,244 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:24:53,244 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:24:53,244 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:24:53,245 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:24:53,245 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:24:53,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:24:53,246 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:24:53,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:24:53,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:24:53,247 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:24:53,248 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:24:53,248 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:24:53,248 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:24:53,248 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:24:53,248 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:24:53,249 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:24:53,249 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:24:53,250 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 11:24:53,263 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:24:53,263 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:24:53,263 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:24:53,263 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:24:53,264 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:24:53,264 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:24:53,264 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:24:53,264 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:24:53,265 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:24:53,265 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:24:53,265 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:24:53,266 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:24:53,266 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:24:53,267 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:24:53,267 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:24:53,267 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_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6304bbe462b12fec4277ffb860d5f110fe5dc3d9c9a5595a3a99ec48e2713d6 [2022-12-13 11:24:53,483 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:24:53,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:24:53,500 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:24:53,501 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:24:53,501 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:24:53,502 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2022-12-13 11:24:56,098 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:24:56,364 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:24:56,364 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2022-12-13 11:24:56,380 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data/090eb58be/684362009d114d1184084af6a2691f10/FLAG5383e2960 [2022-12-13 11:24:56,391 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data/090eb58be/684362009d114d1184084af6a2691f10 [2022-12-13 11:24:56,393 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:24:56,394 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:24:56,396 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:24:56,396 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:24:56,398 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:24:56,399 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:24:56" (1/1) ... [2022-12-13 11:24:56,400 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b8f0c1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:56, skipping insertion in model container [2022-12-13 11:24:56,400 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:24:56" (1/1) ... [2022-12-13 11:24:56,406 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:24:56,470 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:24:56,620 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_59ded269-598f-4d60-a9ab-95204137e97c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1107,1120] [2022-12-13 11:24:56,914 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:24:56,919 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:24:56,926 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_59ded269-598f-4d60-a9ab-95204137e97c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1107,1120] [2022-12-13 11:24:57,073 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:24:57,083 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:24:57,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57 WrapperNode [2022-12-13 11:24:57,083 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:24:57,084 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:24:57,084 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:24:57,084 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:24:57,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,202 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3197 [2022-12-13 11:24:57,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:24:57,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:24:57,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:24:57,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:24:57,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,210 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,255 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,263 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,270 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,282 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:24:57,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:24:57,283 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:24:57,283 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:24:57,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (1/1) ... [2022-12-13 11:24:57,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:24:57,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:24:57,305 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:24:57,307 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:24:57,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:24:57,333 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:24:57,700 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:24:57,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:27:05,271 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:27:05,276 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:27:05,276 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:27:05,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:27:05 BoogieIcfgContainer [2022-12-13 11:27:05,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:27:05,280 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:27:05,280 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:27:05,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:27:05,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:24:56" (1/3) ... [2022-12-13 11:27:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110d6212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:27:05, skipping insertion in model container [2022-12-13 11:27:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:24:57" (2/3) ... [2022-12-13 11:27:05,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@110d6212 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:27:05, skipping insertion in model container [2022-12-13 11:27:05,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:27:05" (3/3) ... [2022-12-13 11:27:05,284 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mpeg.c [2022-12-13 11:27:05,298 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:27:05,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:27:05,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:27:05,337 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;@3058ae10, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:27:05,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:27:05,340 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) [2022-12-13 11:27:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:27:05,344 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:27:05,344 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:27:05,345 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:27:05,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:27:05,348 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:27:05,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:27:05,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137115313] [2022-12-13 11:27:05,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:27:05,355 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:27:05,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:27:05,632 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:27:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:27:05,794 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:27:05,796 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:27:05,797 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:27:05,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:27:05,801 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:27:05,805 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:27:05,836 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 11:27:05,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:27:05 BoogieIcfgContainer [2022-12-13 11:27:05,853 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:27:05,854 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:27:05,854 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:27:05,854 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:27:05,855 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:27:05" (3/4) ... [2022-12-13 11:27:05,858 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:27:05,858 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:27:05,859 INFO L158 Benchmark]: Toolchain (without parser) took 129464.44ms. Allocated memory was 136.3MB in the beginning and 880.8MB in the end (delta: 744.5MB). Free memory was 96.6MB in the beginning and 350.3MB in the end (delta: -253.7MB). Peak memory consumption was 493.6MB. Max. memory is 16.1GB. [2022-12-13 11:27:05,860 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory was 108.1MB in the beginning and 107.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:27:05,860 INFO L158 Benchmark]: CACSL2BoogieTranslator took 687.86ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 96.6MB in the beginning and 100.0MB in the end (delta: -3.3MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. [2022-12-13 11:27:05,861 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.36ms. Allocated memory is still 174.1MB. Free memory was 100.0MB in the beginning and 114.4MB in the end (delta: -14.4MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. [2022-12-13 11:27:05,861 INFO L158 Benchmark]: Boogie Preprocessor took 79.35ms. Allocated memory is still 174.1MB. Free memory was 114.4MB in the beginning and 102.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 11:27:05,862 INFO L158 Benchmark]: RCFGBuilder took 127995.62ms. Allocated memory was 174.1MB in the beginning and 880.8MB in the end (delta: 706.7MB). Free memory was 102.6MB in the beginning and 419.5MB in the end (delta: -316.9MB). Peak memory consumption was 537.7MB. Max. memory is 16.1GB. [2022-12-13 11:27:05,862 INFO L158 Benchmark]: TraceAbstraction took 573.65ms. Allocated memory is still 880.8MB. Free memory was 419.5MB in the beginning and 350.3MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-12-13 11:27:05,863 INFO L158 Benchmark]: Witness Printer took 3.95ms. Allocated memory is still 880.8MB. Free memory is still 350.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:27:05,866 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 136.3MB. Free memory was 108.1MB in the beginning and 107.9MB in the end (delta: 159.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 687.86ms. Allocated memory was 136.3MB in the beginning and 174.1MB in the end (delta: 37.7MB). Free memory was 96.6MB in the beginning and 100.0MB in the end (delta: -3.3MB). Peak memory consumption was 65.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.36ms. Allocated memory is still 174.1MB. Free memory was 100.0MB in the beginning and 114.4MB in the end (delta: -14.4MB). Peak memory consumption was 45.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 79.35ms. Allocated memory is still 174.1MB. Free memory was 114.4MB in the beginning and 102.6MB in the end (delta: 11.7MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * RCFGBuilder took 127995.62ms. Allocated memory was 174.1MB in the beginning and 880.8MB in the end (delta: 706.7MB). Free memory was 102.6MB in the beginning and 419.5MB in the end (delta: -316.9MB). Peak memory consumption was 537.7MB. Max. memory is 16.1GB. * TraceAbstraction took 573.65ms. Allocated memory is still 880.8MB. Free memory was 419.5MB in the beginning and 350.3MB in the end (delta: 69.2MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 3.95ms. Allocated memory is still 880.8MB. Free memory is still 350.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 513, overapproximation of bitwiseAnd at line 368. 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_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_23 mask_SORT_23 = (SORT_23)-1 >> (sizeof(SORT_23) * 8 - 8); [L32] const SORT_23 msb_SORT_23 = (SORT_23)1 << (8 - 1); [L34] const SORT_27 mask_SORT_27 = (SORT_27)-1 >> (sizeof(SORT_27) * 8 - 7); [L35] const SORT_27 msb_SORT_27 = (SORT_27)1 << (7 - 1); [L37] const SORT_32 mask_SORT_32 = (SORT_32)-1 >> (sizeof(SORT_32) * 8 - 3); [L38] const SORT_32 msb_SORT_32 = (SORT_32)1 << (3 - 1); [L40] const SORT_40 mask_SORT_40 = (SORT_40)-1 >> (sizeof(SORT_40) * 8 - 24); [L41] const SORT_40 msb_SORT_40 = (SORT_40)1 << (24 - 1); [L43] const SORT_43 mask_SORT_43 = (SORT_43)-1 >> (sizeof(SORT_43) * 8 - 40); [L44] const SORT_43 msb_SORT_43 = (SORT_43)1 << (40 - 1); [L46] const SORT_70 mask_SORT_70 = (SORT_70)-1 >> (sizeof(SORT_70) * 8 - 2); [L47] const SORT_70 msb_SORT_70 = (SORT_70)1 << (2 - 1); [L49] const SORT_76 mask_SORT_76 = (SORT_76)-1 >> (sizeof(SORT_76) * 8 - 16); [L50] const SORT_76 msb_SORT_76 = (SORT_76)1 << (16 - 1); [L52] const SORT_100 mask_SORT_100 = (SORT_100)-1 >> (sizeof(SORT_100) * 8 - 13); [L53] const SORT_100 msb_SORT_100 = (SORT_100)1 << (13 - 1); [L55] const SORT_111 mask_SORT_111 = (SORT_111)-1 >> (sizeof(SORT_111) * 8 - 33); [L56] const SORT_111 msb_SORT_111 = (SORT_111)1 << (33 - 1); [L58] const SORT_118 mask_SORT_118 = (SORT_118)-1 >> (sizeof(SORT_118) * 8 - 4); [L59] const SORT_118 msb_SORT_118 = (SORT_118)1 << (4 - 1); [L61] const SORT_1 var_4 = 0; [L62] const SORT_7 var_9 = 0; [L63] const SORT_1 var_11 = 1; [L64] const SORT_7 var_15 = 1; [L65] const SORT_23 var_24 = 255; [L66] const SORT_32 var_33 = 0; [L67] const SORT_70 var_71 = 0; [L68] const SORT_23 var_85 = 0; [L69] const SORT_76 var_91 = 0; [L70] const SORT_118 var_119 = 0; [L71] const SORT_118 var_128 = 15; [L72] const SORT_23 var_153 = 93; [L73] const SORT_32 var_156 = 3; [L74] const SORT_32 var_177 = 7; [L75] const SORT_32 var_189 = 1; [L76] const SORT_32 var_199 = 2; [L77] const SORT_23 var_209 = 1; [L78] const SORT_32 var_258 = 5; [L79] const SORT_32 var_266 = 6; [L80] const SORT_32 var_270 = 4; [L81] const SORT_23 var_327 = 128; [L82] const SORT_23 var_335 = 221; [L83] const SORT_70 var_426 = 2; [L84] const SORT_70 var_429 = 1; [L85] const SORT_23 var_476 = 3; [L86] const SORT_23 var_479 = 131; [L87] const SORT_23 var_482 = 195; [L88] const SORT_23 var_485 = 7; [L89] const SORT_23 var_488 = 67; [L90] const SORT_118 var_522 = 3; [L91] const SORT_118 var_531 = 4; [L92] const SORT_118 var_552 = 6; [L93] const SORT_118 var_567 = 7; [L94] const SORT_118 var_572 = 5; [L95] const SORT_23 var_584 = 185; [L96] const SORT_23 var_588 = 186; [L97] const SORT_118 var_609 = 8; [L98] const SORT_70 var_627 = 3; [L99] const SORT_23 var_688 = 15; [L100] const SORT_118 var_714 = 13; [L101] const SORT_118 var_731 = 1; [L102] const SORT_118 var_733 = 2; [L103] const SORT_118 var_784 = 9; [L104] const SORT_118 var_785 = 10; [L105] const SORT_118 var_791 = 11; [L106] const SORT_118 var_792 = 12; [L107] const SORT_23 var_867 = 191; [L109] SORT_1 input_2; [L110] SORT_1 input_3; [L111] SORT_27 input_28; [L112] SORT_40 input_41; [L113] SORT_43 input_44; [L114] SORT_40 input_52; [L115] SORT_40 input_54; [L116] SORT_40 input_56; [L117] SORT_40 input_58; [L118] SORT_40 input_60; [L119] SORT_40 input_62; [L120] SORT_40 input_64; [L121] SORT_40 input_66; [L122] SORT_76 input_77; [L123] SORT_40 input_79; [L124] SORT_23 input_81; [L125] SORT_76 input_88; [L126] SORT_23 input_90; [L127] SORT_76 input_94; [L128] SORT_1 input_98; [L129] SORT_100 input_101; [L130] SORT_23 input_103; [L131] SORT_111 input_112; [L132] SORT_111 input_114; [L133] SORT_1 input_124; [L134] SORT_1 input_131; [L135] SORT_1 input_150; [L136] SORT_1 input_151; [L137] SORT_1 input_152; [L138] SORT_32 input_186; [L139] SORT_32 input_187; [L140] SORT_32 input_188; [L141] SORT_32 input_197; [L142] SORT_32 input_198; [L143] SORT_32 input_207; [L144] SORT_32 input_208; [L145] SORT_32 input_217; [L146] SORT_32 input_218; [L147] SORT_32 input_232; [L148] SORT_1 input_281; [L149] SORT_32 input_304; [L150] SORT_32 input_305; [L151] SORT_32 input_306; [L152] SORT_32 input_316; [L153] SORT_32 input_317; [L154] SORT_32 input_325; [L155] SORT_32 input_326; [L156] SORT_32 input_333; [L157] SORT_32 input_334; [L158] SORT_1 input_351; [L159] SORT_1 input_352; [L160] SORT_1 input_353; [L161] SORT_32 input_366; [L162] SORT_70 input_415; [L163] SORT_70 input_416; [L164] SORT_70 input_417; [L165] SORT_1 input_439; [L166] SORT_1 input_470; [L167] SORT_1 input_471; [L168] SORT_1 input_472; [L169] SORT_1 input_473; [L170] SORT_1 input_474; [L171] SORT_1 input_475; [L172] SORT_23 input_509; [L173] SORT_23 input_510; [L174] SORT_23 input_511; [L175] SORT_76 input_525; [L176] SORT_76 input_539; [L177] SORT_76 input_540; [L178] SORT_76 input_541; [L179] SORT_76 input_560; [L180] SORT_1 input_579; [L181] SORT_1 input_580; [L182] SORT_1 input_581; [L183] SORT_1 input_582; [L184] SORT_1 input_583; [L185] SORT_1 input_587; [L186] SORT_1 input_605; [L187] SORT_1 input_617; [L188] SORT_1 input_623; [L189] SORT_70 input_636; [L190] SORT_70 input_645; [L191] SORT_70 input_646; [L192] SORT_70 input_659; [L193] SORT_70 input_660; [L194] SORT_70 input_661; [L195] SORT_70 input_675; [L196] SORT_1 input_685; [L197] SORT_1 input_686; [L198] SORT_1 input_687; [L199] SORT_1 input_704; [L200] SORT_118 input_723; [L201] SORT_118 input_724; [L202] SORT_118 input_725; [L203] SORT_118 input_726; [L204] SORT_118 input_727; [L205] SORT_118 input_728; [L206] SORT_118 input_729; [L207] SORT_118 input_730; [L208] SORT_118 input_766; [L209] SORT_118 input_812; [L210] SORT_118 input_813; [L211] SORT_118 input_814; [L212] SORT_118 input_838; [L213] SORT_118 input_846; [L214] SORT_118 input_847; [L215] SORT_118 input_848; [L216] SORT_118 input_849; [L217] SORT_118 input_850; [L218] SORT_118 input_852; [L219] SORT_118 input_866; [L220] SORT_118 input_877; [L221] SORT_118 input_878; [L222] SORT_118 input_879; [L223] SORT_118 input_891; [L224] SORT_118 input_892; [L225] SORT_118 input_893; [L226] SORT_118 input_894; [L227] SORT_118 input_895; [L228] SORT_118 input_896; [L229] SORT_118 input_897; [L230] SORT_118 input_901; [L231] SORT_118 input_909; [L232] SORT_118 input_923; [L233] SORT_118 input_927; [L234] SORT_23 input_943; [L235] SORT_23 input_944; [L236] SORT_23 input_945; [L237] SORT_23 input_946; [L238] SORT_23 input_947; [L239] SORT_23 input_949; [L240] SORT_1 input_964; [L241] SORT_1 input_965; [L242] SORT_1 input_966; [L243] SORT_1 input_976; [L244] SORT_1 input_977; [L245] SORT_1 input_978; [L246] SORT_1 input_992; [L247] SORT_1 input_998; [L248] SORT_1 input_999; [L249] SORT_1 input_1000; [L250] SORT_1 input_1010; [L251] SORT_1 input_1011; [L252] SORT_1 input_1012; [L254] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L255] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L256] SORT_23 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L257] SORT_1 state_30 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L258] SORT_32 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L259] SORT_32 state_36 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L260] SORT_32 state_38 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L261] SORT_1 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L262] SORT_32 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L263] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L264] SORT_32 state_68 = __VERIFIER_nondet_uchar() & mask_SORT_32; [L265] SORT_70 state_72 = __VERIFIER_nondet_uchar() & mask_SORT_70; [L266] SORT_1 state_74 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L267] SORT_1 state_83 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L268] SORT_23 state_86 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L269] SORT_76 state_96 = __VERIFIER_nondet_ushort() & mask_SORT_76; [L270] SORT_1 state_105 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L271] SORT_1 state_107 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L272] SORT_70 state_109 = __VERIFIER_nondet_uchar() & mask_SORT_70; [L273] SORT_1 state_116 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L274] SORT_118 state_120 = __VERIFIER_nondet_uchar() & mask_SORT_118; [L275] SORT_118 state_122 = __VERIFIER_nondet_uchar() & mask_SORT_118; [L276] SORT_76 state_126 = __VERIFIER_nondet_ushort() & mask_SORT_76; [L277] SORT_118 state_129 = __VERIFIER_nondet_uchar() & mask_SORT_118; [L278] SORT_23 state_133 = __VERIFIER_nondet_uchar() & mask_SORT_23; [L279] SORT_1 state_135 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L280] SORT_1 state_137 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L281] SORT_1 state_139 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L282] SORT_1 state_141 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L283] SORT_1 state_146 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L284] SORT_1 state_148 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L286] SORT_1 init_6_arg_1 = var_4; [L287] state_5 = init_6_arg_1 [L288] SORT_1 init_13_arg_1 = var_11; [L289] state_12 = init_13_arg_1 [L290] SORT_23 init_26_arg_1 = var_24; [L291] state_25 = init_26_arg_1 [L292] SORT_1 init_31_arg_1 = var_4; [L293] state_30 = init_31_arg_1 [L294] SORT_32 init_35_arg_1 = var_33; [L295] state_34 = init_35_arg_1 [L296] SORT_32 init_37_arg_1 = var_33; [L297] state_36 = init_37_arg_1 [L298] SORT_32 init_39_arg_1 = var_33; [L299] state_38 = init_39_arg_1 [L300] SORT_1 init_47_arg_1 = var_4; [L301] state_46 = init_47_arg_1 [L302] SORT_32 init_49_arg_1 = var_33; [L303] state_48 = init_49_arg_1 [L304] SORT_1 init_51_arg_1 = var_4; [L305] state_50 = init_51_arg_1 [L306] SORT_32 init_69_arg_1 = var_33; [L307] state_68 = init_69_arg_1 [L308] SORT_70 init_73_arg_1 = var_71; [L309] state_72 = init_73_arg_1 [L310] SORT_1 init_75_arg_1 = var_4; [L311] state_74 = init_75_arg_1 [L312] SORT_1 init_84_arg_1 = var_4; [L313] state_83 = init_84_arg_1 [L314] SORT_23 init_87_arg_1 = var_85; [L315] state_86 = init_87_arg_1 [L316] SORT_76 init_97_arg_1 = var_91; [L317] state_96 = init_97_arg_1 [L318] SORT_1 init_106_arg_1 = var_4; [L319] state_105 = init_106_arg_1 [L320] SORT_1 init_108_arg_1 = var_4; [L321] state_107 = init_108_arg_1 [L322] SORT_70 init_110_arg_1 = var_71; [L323] state_109 = init_110_arg_1 [L324] SORT_1 init_117_arg_1 = var_4; [L325] state_116 = init_117_arg_1 [L326] SORT_118 init_121_arg_1 = var_119; [L327] state_120 = init_121_arg_1 [L328] SORT_118 init_123_arg_1 = var_119; [L329] state_122 = init_123_arg_1 [L330] SORT_76 init_127_arg_1 = var_91; [L331] state_126 = init_127_arg_1 [L332] SORT_118 init_130_arg_1 = var_128; [L333] state_129 = init_130_arg_1 [L334] SORT_23 init_134_arg_1 = var_85; [L335] state_133 = init_134_arg_1 [L336] SORT_1 init_136_arg_1 = var_4; [L337] state_135 = init_136_arg_1 [L338] SORT_1 init_138_arg_1 = var_4; [L339] state_137 = init_138_arg_1 [L340] SORT_1 init_140_arg_1 = var_4; [L341] state_139 = init_140_arg_1 [L342] SORT_1 init_142_arg_1 = var_4; [L343] state_141 = init_142_arg_1 [L344] SORT_1 init_147_arg_1 = var_4; [L345] state_146 = init_147_arg_1 [L346] SORT_1 init_149_arg_1 = var_4; [L347] state_148 = init_149_arg_1 VAL [init_106_arg_1=0, init_108_arg_1=0, init_110_arg_1=0, init_117_arg_1=0, init_121_arg_1=0, init_123_arg_1=0, init_127_arg_1=0, init_130_arg_1=15, init_134_arg_1=0, init_136_arg_1=0, init_138_arg_1=0, init_13_arg_1=1, init_140_arg_1=0, init_142_arg_1=0, init_147_arg_1=0, init_149_arg_1=0, init_26_arg_1=255, init_31_arg_1=0, init_35_arg_1=0, init_37_arg_1=0, init_39_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_69_arg_1=0, init_6_arg_1=0, init_73_arg_1=0, init_75_arg_1=0, init_84_arg_1=0, init_87_arg_1=0, init_97_arg_1=0, mask_SORT_1=1, mask_SORT_100=8191, mask_SORT_111=18446744073709551615, mask_SORT_118=15, mask_SORT_23=255, mask_SORT_27=127, mask_SORT_32=7, mask_SORT_40=4294967295, mask_SORT_43=18446744073709551615, mask_SORT_7=4294967295, mask_SORT_70=3, mask_SORT_76=65535, msb_SORT_1=1, msb_SORT_100=4096, msb_SORT_111=4294967296, msb_SORT_118=8, msb_SORT_23=128, msb_SORT_27=64, msb_SORT_32=4, msb_SORT_40=8388608, msb_SORT_43=549755813888, msb_SORT_7=2147483648, msb_SORT_70=2, msb_SORT_76=32768, state_105=0, state_107=0, state_109=0, state_116=0, state_12=1, state_120=0, state_122=0, state_126=0, state_129=15, state_133=0, state_135=0, state_137=0, state_139=0, state_141=0, state_146=0, state_148=0, state_25=255, state_30=0, state_34=0, state_36=0, state_38=0, state_46=0, state_48=0, state_5=0, state_50=0, state_68=0, state_72=0, state_74=0, state_83=0, state_86=0, state_96=0, var_11=1, var_119=0, var_128=15, var_15=1, var_153=93, var_156=3, var_177=7, var_189=1, var_199=2, var_209=1, var_24=255, var_258=5, var_266=6, var_270=4, var_327=128, var_33=0, var_335=221, var_4=0, var_426=2, var_429=1, var_476=3, var_479=131, var_482=195, var_485=7, var_488=67, var_522=3, var_531=4, var_552=6, var_567=7, var_572=5, var_584=185, var_588=186, var_609=8, var_627=3, var_688=15, var_71=0, var_714=13, var_731=1, var_733=2, var_784=9, var_785=10, var_791=11, var_792=12, var_85=0, var_867=191, var_9=0, var_91=0] [L350] input_2 = __VERIFIER_nondet_uchar() [L351] input_3 = __VERIFIER_nondet_uchar() [L352] input_28 = __VERIFIER_nondet_uchar() [L353] input_41 = __VERIFIER_nondet_uint() [L354] input_44 = __VERIFIER_nondet_ulong() [L355] input_52 = __VERIFIER_nondet_uint() [L356] input_54 = __VERIFIER_nondet_uint() [L357] input_56 = __VERIFIER_nondet_uint() [L358] input_58 = __VERIFIER_nondet_uint() [L359] input_60 = __VERIFIER_nondet_uint() [L360] input_62 = __VERIFIER_nondet_uint() [L361] input_64 = __VERIFIER_nondet_uint() [L362] input_66 = __VERIFIER_nondet_uint() [L363] input_77 = __VERIFIER_nondet_ushort() [L364] input_79 = __VERIFIER_nondet_uint() [L365] input_81 = __VERIFIER_nondet_uchar() [L366] input_88 = __VERIFIER_nondet_ushort() [L367] input_90 = __VERIFIER_nondet_uchar() [L368] input_90 = input_90 & mask_SORT_23 [L369] input_94 = __VERIFIER_nondet_ushort() [L370] input_98 = __VERIFIER_nondet_uchar() [L371] input_101 = __VERIFIER_nondet_ushort() [L372] input_103 = __VERIFIER_nondet_uchar() [L373] input_112 = __VERIFIER_nondet_ulong() [L374] input_114 = __VERIFIER_nondet_ulong() [L375] input_124 = __VERIFIER_nondet_uchar() [L376] input_131 = __VERIFIER_nondet_uchar() [L377] input_150 = __VERIFIER_nondet_uchar() [L378] input_151 = __VERIFIER_nondet_uchar() [L379] input_152 = __VERIFIER_nondet_uchar() [L380] input_186 = __VERIFIER_nondet_uchar() [L381] input_187 = __VERIFIER_nondet_uchar() [L382] input_188 = __VERIFIER_nondet_uchar() [L383] input_197 = __VERIFIER_nondet_uchar() [L384] input_198 = __VERIFIER_nondet_uchar() [L385] input_207 = __VERIFIER_nondet_uchar() [L386] input_208 = __VERIFIER_nondet_uchar() [L387] input_217 = __VERIFIER_nondet_uchar() [L388] input_218 = __VERIFIER_nondet_uchar() [L389] input_232 = __VERIFIER_nondet_uchar() [L390] input_281 = __VERIFIER_nondet_uchar() [L391] input_304 = __VERIFIER_nondet_uchar() [L392] input_305 = __VERIFIER_nondet_uchar() [L393] input_306 = __VERIFIER_nondet_uchar() [L394] input_316 = __VERIFIER_nondet_uchar() [L395] input_317 = __VERIFIER_nondet_uchar() [L396] input_325 = __VERIFIER_nondet_uchar() [L397] input_326 = __VERIFIER_nondet_uchar() [L398] input_333 = __VERIFIER_nondet_uchar() [L399] input_334 = __VERIFIER_nondet_uchar() [L400] input_351 = __VERIFIER_nondet_uchar() [L401] input_352 = __VERIFIER_nondet_uchar() [L402] input_353 = __VERIFIER_nondet_uchar() [L403] input_366 = __VERIFIER_nondet_uchar() [L404] input_415 = __VERIFIER_nondet_uchar() [L405] input_416 = __VERIFIER_nondet_uchar() [L406] input_417 = __VERIFIER_nondet_uchar() [L407] input_439 = __VERIFIER_nondet_uchar() [L408] input_470 = __VERIFIER_nondet_uchar() [L409] input_471 = __VERIFIER_nondet_uchar() [L410] input_472 = __VERIFIER_nondet_uchar() [L411] input_473 = __VERIFIER_nondet_uchar() [L412] input_474 = __VERIFIER_nondet_uchar() [L413] input_475 = __VERIFIER_nondet_uchar() [L414] input_509 = __VERIFIER_nondet_uchar() [L415] input_510 = __VERIFIER_nondet_uchar() [L416] input_511 = __VERIFIER_nondet_uchar() [L417] input_525 = __VERIFIER_nondet_ushort() [L418] input_539 = __VERIFIER_nondet_ushort() [L419] input_540 = __VERIFIER_nondet_ushort() [L420] input_541 = __VERIFIER_nondet_ushort() [L421] input_560 = __VERIFIER_nondet_ushort() [L422] input_579 = __VERIFIER_nondet_uchar() [L423] input_580 = __VERIFIER_nondet_uchar() [L424] input_581 = __VERIFIER_nondet_uchar() [L425] input_582 = __VERIFIER_nondet_uchar() [L426] input_583 = __VERIFIER_nondet_uchar() [L427] input_587 = __VERIFIER_nondet_uchar() [L428] input_605 = __VERIFIER_nondet_uchar() [L429] input_617 = __VERIFIER_nondet_uchar() [L430] input_623 = __VERIFIER_nondet_uchar() [L431] input_636 = __VERIFIER_nondet_uchar() [L432] input_645 = __VERIFIER_nondet_uchar() [L433] input_646 = __VERIFIER_nondet_uchar() [L434] input_659 = __VERIFIER_nondet_uchar() [L435] input_660 = __VERIFIER_nondet_uchar() [L436] input_661 = __VERIFIER_nondet_uchar() [L437] input_675 = __VERIFIER_nondet_uchar() [L438] input_685 = __VERIFIER_nondet_uchar() [L439] input_686 = __VERIFIER_nondet_uchar() [L440] input_687 = __VERIFIER_nondet_uchar() [L441] input_704 = __VERIFIER_nondet_uchar() [L442] input_723 = __VERIFIER_nondet_uchar() [L443] input_724 = __VERIFIER_nondet_uchar() [L444] input_725 = __VERIFIER_nondet_uchar() [L445] input_726 = __VERIFIER_nondet_uchar() [L446] input_727 = __VERIFIER_nondet_uchar() [L447] input_728 = __VERIFIER_nondet_uchar() [L448] input_729 = __VERIFIER_nondet_uchar() [L449] input_730 = __VERIFIER_nondet_uchar() [L450] input_766 = __VERIFIER_nondet_uchar() [L451] input_812 = __VERIFIER_nondet_uchar() [L452] input_813 = __VERIFIER_nondet_uchar() [L453] input_814 = __VERIFIER_nondet_uchar() [L454] input_838 = __VERIFIER_nondet_uchar() [L455] input_846 = __VERIFIER_nondet_uchar() [L456] input_847 = __VERIFIER_nondet_uchar() [L457] input_848 = __VERIFIER_nondet_uchar() [L458] input_849 = __VERIFIER_nondet_uchar() [L459] input_850 = __VERIFIER_nondet_uchar() [L460] input_852 = __VERIFIER_nondet_uchar() [L461] input_866 = __VERIFIER_nondet_uchar() [L462] input_877 = __VERIFIER_nondet_uchar() [L463] input_878 = __VERIFIER_nondet_uchar() [L464] input_879 = __VERIFIER_nondet_uchar() [L465] input_891 = __VERIFIER_nondet_uchar() [L466] input_892 = __VERIFIER_nondet_uchar() [L467] input_893 = __VERIFIER_nondet_uchar() [L468] input_894 = __VERIFIER_nondet_uchar() [L469] input_895 = __VERIFIER_nondet_uchar() [L470] input_896 = __VERIFIER_nondet_uchar() [L471] input_897 = __VERIFIER_nondet_uchar() [L472] input_901 = __VERIFIER_nondet_uchar() [L473] input_909 = __VERIFIER_nondet_uchar() [L474] input_923 = __VERIFIER_nondet_uchar() [L475] input_927 = __VERIFIER_nondet_uchar() [L476] input_943 = __VERIFIER_nondet_uchar() [L477] input_944 = __VERIFIER_nondet_uchar() [L478] input_945 = __VERIFIER_nondet_uchar() [L479] input_946 = __VERIFIER_nondet_uchar() [L480] input_947 = __VERIFIER_nondet_uchar() [L481] input_949 = __VERIFIER_nondet_uchar() [L482] input_964 = __VERIFIER_nondet_uchar() [L483] input_965 = __VERIFIER_nondet_uchar() [L484] input_966 = __VERIFIER_nondet_uchar() [L485] input_976 = __VERIFIER_nondet_uchar() [L486] input_977 = __VERIFIER_nondet_uchar() [L487] input_978 = __VERIFIER_nondet_uchar() [L488] input_992 = __VERIFIER_nondet_uchar() [L489] input_998 = __VERIFIER_nondet_uchar() [L490] input_999 = __VERIFIER_nondet_uchar() [L491] input_1000 = __VERIFIER_nondet_uchar() [L492] input_1010 = __VERIFIER_nondet_uchar() [L493] input_1011 = __VERIFIER_nondet_uchar() [L494] input_1012 = __VERIFIER_nondet_uchar() [L497] SORT_1 var_8_arg_0 = state_5; [L498] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L499] SORT_7 var_8 = var_8_arg_0; [L500] SORT_7 var_10_arg_0 = var_8; [L501] SORT_7 var_10_arg_1 = var_9; [L502] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L503] SORT_1 var_14_arg_0 = state_12; [L504] var_14_arg_0 = var_14_arg_0 & mask_SORT_1 [L505] SORT_7 var_14 = var_14_arg_0; [L506] SORT_7 var_16_arg_0 = var_14; [L507] SORT_7 var_16_arg_1 = var_15; [L508] SORT_1 var_16 = var_16_arg_0 == var_16_arg_1; [L509] SORT_1 var_17_arg_0 = var_10; [L510] SORT_1 var_17_arg_1 = var_16; [L511] SORT_1 var_17 = var_17_arg_0 & var_17_arg_1; [L512] SORT_1 var_20_arg_0 = var_17; [L513] SORT_1 var_20 = ~var_20_arg_0; [L514] SORT_1 var_21_arg_0 = var_11; [L515] SORT_1 var_21_arg_1 = var_20; [L516] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L517] var_21 = var_21 & mask_SORT_1 [L518] SORT_1 bad_22_arg_0 = var_21; [L519] CALL __VERIFIER_assert(!(bad_22_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: 0.5s, 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, 0.2s 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 [2022-12-13 11:27:05,892 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8 --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 b6304bbe462b12fec4277ffb860d5f110fe5dc3d9c9a5595a3a99ec48e2713d6 --- 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-2329fc7 [2022-12-13 11:27:07,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:27:07,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:27:07,385 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:27:07,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:27:07,387 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:27:07,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:27:07,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:27:07,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:27:07,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:27:07,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:27:07,394 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:27:07,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:27:07,396 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:27:07,397 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:27:07,398 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:27:07,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:27:07,400 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:27:07,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:27:07,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:27:07,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:27:07,410 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:27:07,411 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:27:07,412 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:27:07,416 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:27:07,416 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:27:07,416 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:27:07,417 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:27:07,418 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:27:07,419 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:27:07,419 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:27:07,420 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:27:07,420 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:27:07,421 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:27:07,422 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:27:07,422 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:27:07,423 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:27:07,423 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:27:07,423 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:27:07,424 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:27:07,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:27:07,426 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 11:27:07,446 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:27:07,447 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:27:07,447 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:27:07,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:27:07,448 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:27:07,448 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:27:07,449 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:27:07,449 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:27:07,449 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:27:07,449 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:27:07,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:27:07,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:27:07,450 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:27:07,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:27:07,450 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:27:07,450 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:27:07,450 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:27:07,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:27:07,451 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:27:07,451 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:27:07,451 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:27:07,451 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:27:07,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:27:07,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:27:07,452 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:27:07,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:27:07,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:27:07,452 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:27:07,452 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:27:07,453 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:27:07,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:27:07,453 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:27:07,453 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:27:07,453 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:27:07,453 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:27:07,453 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_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b6304bbe462b12fec4277ffb860d5f110fe5dc3d9c9a5595a3a99ec48e2713d6 [2022-12-13 11:27:07,666 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:27:07,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:27:07,682 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:27:07,683 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:27:07,684 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:27:07,685 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2022-12-13 11:27:10,218 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:27:10,454 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:27:10,455 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c [2022-12-13 11:27:10,467 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data/728d9c531/977e82fc93b84a7284f3599d9155bf8c/FLAG4bba15740 [2022-12-13 11:27:10,784 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/data/728d9c531/977e82fc93b84a7284f3599d9155bf8c [2022-12-13 11:27:10,787 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:27:10,789 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:27:10,790 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:27:10,790 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:27:10,794 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:27:10,794 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:27:10" (1/1) ... [2022-12-13 11:27:10,795 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52ed6bd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:10, skipping insertion in model container [2022-12-13 11:27:10,795 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:27:10" (1/1) ... [2022-12-13 11:27:10,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:27:10,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:27:11,019 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_59ded269-598f-4d60-a9ab-95204137e97c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1107,1120] [2022-12-13 11:27:11,280 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:27:11,285 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:27:11,295 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_59ded269-598f-4d60-a9ab-95204137e97c/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.mpeg.c[1107,1120] [2022-12-13 11:27:11,453 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:27:11,465 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:27:11,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11 WrapperNode [2022-12-13 11:27:11,466 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:27:11,467 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:27:11,467 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:27:11,467 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:27:11,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,515 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,594 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 3197 [2022-12-13 11:27:11,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:27:11,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:27:11,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:27:11,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:27:11,604 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,604 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,619 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,677 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,688 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,703 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,718 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:27:11,719 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:27:11,719 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:27:11,719 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:27:11,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (1/1) ... [2022-12-13 11:27:11,727 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:27:11,738 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:27:11,750 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:27:11,752 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:27:11,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:27:11,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:27:12,198 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:27:12,199 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:27:15,540 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:27:15,546 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:27:15,546 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:27:15,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:27:15 BoogieIcfgContainer [2022-12-13 11:27:15,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:27:15,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:27:15,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:27:15,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:27:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:27:10" (1/3) ... [2022-12-13 11:27:15,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c022458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:27:15, skipping insertion in model container [2022-12-13 11:27:15,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:27:11" (2/3) ... [2022-12-13 11:27:15,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c022458 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:27:15, skipping insertion in model container [2022-12-13 11:27:15,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:27:15" (3/3) ... [2022-12-13 11:27:15,554 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.mpeg.c [2022-12-13 11:27:15,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:27:15,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:27:15,603 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:27:15,608 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;@4bf1d6f1, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:27:15,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:27:15,611 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) [2022-12-13 11:27:15,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:27:15,616 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:27:15,616 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:27:15,616 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:27:15,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:27:15,620 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:27:15,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:27:15,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1417155560] [2022-12-13 11:27:15,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:27:15,630 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 [2022-12-13 11:27:15,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:27:15,631 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:27:15,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:27:16,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:27:16,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 11:27:16,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:27:16,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:27:16,236 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:27:16,237 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:27:16,237 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1417155560] [2022-12-13 11:27:16,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1417155560] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:27:16,238 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:27:16,238 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:27:16,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646930775] [2022-12-13 11:27:16,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:27:16,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:27:16,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:27:16,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:27:16,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:27:16,265 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) [2022-12-13 11:27:16,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:27:16,863 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 11:27:16,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:27:16,865 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 [2022-12-13 11:27:16,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:27:16,869 INFO L225 Difference]: With dead ends: 20 [2022-12-13 11:27:16,870 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 11:27:16,871 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:27:16,873 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:27:16,874 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:27:16,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 11:27:16,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 11:27:16,893 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) [2022-12-13 11:27:16,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 11:27:16,895 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 11:27:16,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:27:16,895 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 11:27:16,895 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) [2022-12-13 11:27:16,895 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 11:27:16,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 11:27:16,895 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:27:16,895 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:27:16,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:27:17,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:27:17,098 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:27:17,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:27:17,100 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 11:27:17,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:27:17,111 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [909976407] [2022-12-13 11:27:17,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:27:17,112 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 [2022-12-13 11:27:17,113 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:27:17,116 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:27:17,120 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:27:18,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:27:18,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 2877 conjuncts, 73 conjunts are in the unsatisfiable core [2022-12-13 11:27:18,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:27:18,635 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:27:18,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:27:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:27:21,306 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:27:21,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [909976407] [2022-12-13 11:27:21,307 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [909976407] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:27:21,307 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:27:21,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 11:27:21,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985034030] [2022-12-13 11:27:21,307 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:27:21,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:27:21,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:27:21,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:27:21,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:27:21,309 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) [2022-12-13 11:27:22,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:27:22,514 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 11:27:22,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:27:22,515 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 [2022-12-13 11:27:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:27:22,515 INFO L225 Difference]: With dead ends: 16 [2022-12-13 11:27:22,516 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:27:22,516 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:27:22,517 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:27:22,518 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2022-12-13 11:27:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:27:22,521 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 11:27:22,521 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) [2022-12-13 11:27:22,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 11:27:22,522 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 11:27:22,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:27:22,522 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 11:27:22,522 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) [2022-12-13 11:27:22,522 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 11:27:22,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:27:22,523 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:27:22,523 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 11:27:22,543 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 11:27:22,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:27:22,725 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:27:22,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:27:22,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 11:27:22,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:27:22,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1458514097] [2022-12-13 11:27:22,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:27:22,732 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 [2022-12-13 11:27:22,732 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:27:22,733 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:27:22,733 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:27:24,280 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:27:24,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:27:24,398 INFO L263 TraceCheckSpWp]: Trace formula consists of 5451 conjuncts, 178 conjunts are in the unsatisfiable core [2022-12-13 11:27:24,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:27:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:27:25,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:29:20,739 WARN L233 SmtUtils]: Spent 10.60s on a formula simplification. DAG size of input: 1394 DAG size of output: 157 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:29:20,997 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:29:20,997 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:29:20,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1458514097] [2022-12-13 11:29:20,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1458514097] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:29:20,998 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:29:20,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 11:29:20,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1488565922] [2022-12-13 11:29:20,998 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:29:20,998 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:29:20,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:29:20,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:29:20,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:29:20,999 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) [2022-12-13 11:29:22,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:29:22,525 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-13 11:29:22,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:29:22,525 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 [2022-12-13 11:29:22,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:29:22,526 INFO L225 Difference]: With dead ends: 19 [2022-12-13 11:29:22,526 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 11:29:22,526 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 12.0s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:29:22,527 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-12-13 11:29:22,527 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2022-12-13 11:29:22,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 11:29:22,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 11:29:22,530 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) [2022-12-13 11:29:22,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 11:29:22,530 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-13 11:29:22,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:29:22,530 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 11:29:22,530 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) [2022-12-13 11:29:22,530 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 11:29:22,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 11:29:22,530 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:29:22,531 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-13 11:29:22,565 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:29:22,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:29:22,732 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:29:22,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:29:22,734 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-13 11:29:22,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:29:22,750 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1279288972] [2022-12-13 11:29:22,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:29:22,751 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 [2022-12-13 11:29:22,751 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:29:22,754 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:29:22,757 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:29:25,126 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-12-13 11:29:25,126 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:29:25,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 8025 conjuncts, 118 conjunts are in the unsatisfiable core [2022-12-13 11:29:25,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:29:26,348 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:29:26,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:29:32,743 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:29:32,743 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:29:32,743 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1279288972] [2022-12-13 11:29:32,743 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1279288972] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:29:32,743 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:29:32,743 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2022-12-13 11:29:32,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290812748] [2022-12-13 11:29:32,743 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:29:32,744 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-12-13 11:29:32,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:29:32,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-12-13 11:29:32,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=186, Unknown=1, NotChecked=0, Total=240 [2022-12-13 11:29:32,744 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-12-13 11:29:35,202 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.01s for a HTC check with result VALID. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [0] [2022-12-13 11:29:50,271 WARN L233 SmtUtils]: Spent 13.14s on a formula simplification. DAG size of input: 211 DAG size of output: 115 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 11:29:52,402 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.09s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 11:29:55,217 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 11:29:57,224 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Bool, BitVec], hasArrays=false, hasNonlinArith=false, quantifiers [1] [2022-12-13 11:30:00,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:30:00,668 INFO L93 Difference]: Finished difference Result 31 states and 34 transitions. [2022-12-13 11:30:00,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 11:30:00,669 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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 14 [2022-12-13 11:30:00,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:30:00,670 INFO L225 Difference]: With dead ends: 31 [2022-12-13 11:30:00,670 INFO L226 Difference]: Without dead ends: 29 [2022-12-13 11:30:00,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=186, Invalid=413, Unknown=1, NotChecked=0, Total=600 [2022-12-13 11:30:00,671 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 45 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 17 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.9s IncrementalHoareTripleChecker+Time [2022-12-13 11:30:00,672 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 37 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 39 Invalid, 3 Unknown, 0 Unchecked, 12.9s Time] [2022-12-13 11:30:00,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-12-13 11:30:00,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2022-12-13 11:30:00,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.0384615384615385) internal successors, (27), 26 states have internal predecessors, (27), 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) [2022-12-13 11:30:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2022-12-13 11:30:00,679 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 14 [2022-12-13 11:30:00,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:30:00,680 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2022-12-13 11:30:00,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 1.625) internal successors, (26), 16 states have internal predecessors, (26), 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) [2022-12-13 11:30:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2022-12-13 11:30:00,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 11:30:00,681 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:30:00,681 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 7, 1, 1, 1, 1] [2022-12-13 11:30:00,725 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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)] Ended with exit code 0 [2022-12-13 11:30:00,881 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 11:30:00,883 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:30:00,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:30:00,885 INFO L85 PathProgramCache]: Analyzing trace with hash -752690141, now seen corresponding path program 4 times [2022-12-13 11:30:00,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:30:00,922 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1853466441] [2022-12-13 11:30:00,922 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 11:30:00,923 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 [2022-12-13 11:30:00,923 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:30:00,925 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 11:30:00,926 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_59ded269-598f-4d60-a9ab-95204137e97c/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-12-13 11:30:05,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 11:30:05,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:30:05,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 18321 conjuncts, 1201 conjunts are in the unsatisfiable core [2022-12-13 11:30:05,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:30:25,379 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 0 proven. 77 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:30:25,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:31:37,513 WARN L233 SmtUtils]: Spent 7.71s on a formula simplification. DAG size of input: 1078 DAG size of output: 192 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)