./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro --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 cd89032489cba73cfad07d869c8cd52bb6dfeb92075f997edf46a57f8d65328b --- 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-8393723 [2022-11-18 21:00:28,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:28,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:28,374 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:28,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:28,381 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:28,383 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:28,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:28,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:28,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:28,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:28,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:28,397 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:28,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:28,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:28,405 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:28,407 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:28,409 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:28,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:28,420 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:28,421 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:28,422 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:28,424 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:28,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:28,428 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:28,428 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:28,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:28,429 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:28,430 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:28,431 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:28,431 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:28,432 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:28,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:28,434 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:28,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:28,435 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:28,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:28,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:28,436 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:28,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:28,438 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:28,439 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 21:00:28,460 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:28,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:28,461 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:28,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:28,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:28,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:28,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:28,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:28,463 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:28,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:28,464 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 21:00:28,464 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:28,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:00:28,465 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:28,465 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:00:28,465 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:28,466 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:28,466 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:00:28,466 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:28,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:28,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:28,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:28,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:28,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:28,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:00:28,468 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 21:00:28,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 21:00:28,469 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:00:28,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:00:28,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:00:28,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd89032489cba73cfad07d869c8cd52bb6dfeb92075f997edf46a57f8d65328b [2022-11-18 21:00:28,763 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:28,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:28,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:28,794 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:28,795 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:28,796 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c [2022-11-18 21:00:28,860 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/80ef7534b/4adae2571d7b4873bac07a9c3b4dbeab/FLAGc301f70e3 [2022-11-18 21:00:29,421 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:29,424 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c [2022-11-18 21:00:29,444 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/80ef7534b/4adae2571d7b4873bac07a9c3b4dbeab/FLAGc301f70e3 [2022-11-18 21:00:29,648 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/80ef7534b/4adae2571d7b4873bac07a9c3b4dbeab [2022-11-18 21:00:29,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:29,653 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:29,658 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:29,658 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:29,662 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:29,663 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:29" (1/1) ... [2022-11-18 21:00:29,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@554a8333 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:29, skipping insertion in model container [2022-11-18 21:00:29,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:29" (1/1) ... [2022-11-18 21:00:29,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:29,732 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:29,982 WARN L234 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_08550721-19fe-4912-b5be-84eaaccc2903/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c[1107,1120] [2022-11-18 21:00:30,414 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:30,418 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:30,429 WARN L234 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_08550721-19fe-4912-b5be-84eaaccc2903/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c[1107,1120] [2022-11-18 21:00:30,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:30,660 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:30,660 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30 WrapperNode [2022-11-18 21:00:30,661 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:30,662 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:30,662 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:30,663 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:30,670 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,741 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,875 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 2873 [2022-11-18 21:00:30,875 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:30,876 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:30,876 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:30,876 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:30,886 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,886 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,902 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,952 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,968 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,984 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:30,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:31,028 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:31,029 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:31,029 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:31,029 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:31,032 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (1/1) ... [2022-11-18 21:00:31,041 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:31,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:31,068 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:31,102 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:31,122 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:31,123 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:31,645 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:31,647 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:34,002 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:34,014 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:34,014 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:00:34,017 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:34 BoogieIcfgContainer [2022-11-18 21:00:34,018 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:34,021 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:34,022 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:34,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:34,026 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:29" (1/3) ... [2022-11-18 21:00:34,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fc79c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:34, skipping insertion in model container [2022-11-18 21:00:34,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:30" (2/3) ... [2022-11-18 21:00:34,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57fc79c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:34, skipping insertion in model container [2022-11-18 21:00:34,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:34" (3/3) ... [2022-11-18 21:00:34,031 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p1.c [2022-11-18 21:00:34,049 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:34,050 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:00:34,131 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:34,137 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;@5642e9e1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:34,138 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:00:34,150 INFO L276 IsEmpty]: Start isEmpty. Operand has 482 states, 480 states have (on average 1.6625) internal successors, (798), 481 states have internal predecessors, (798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:34,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-18 21:00:34,160 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:34,160 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:34,161 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:34,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:34,168 INFO L85 PathProgramCache]: Analyzing trace with hash 1809713074, now seen corresponding path program 1 times [2022-11-18 21:00:34,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:34,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482229485] [2022-11-18 21:00:34,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:34,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:34,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:34,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:34,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 21:00:34,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482229485] [2022-11-18 21:00:34,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482229485] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:34,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:34,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238175657] [2022-11-18 21:00:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:34,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:34,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 21:00:34,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:34,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:34,777 INFO L87 Difference]: Start difference. First operand has 482 states, 480 states have (on average 1.6625) internal successors, (798), 481 states have internal predecessors, (798), 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 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:34,978 INFO L93 Difference]: Finished difference Result 1435 states and 2387 transitions. [2022-11-18 21:00:34,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:34,981 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-18 21:00:34,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:34,996 INFO L225 Difference]: With dead ends: 1435 [2022-11-18 21:00:34,997 INFO L226 Difference]: Without dead ends: 955 [2022-11-18 21:00:35,001 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:35,005 INFO L413 NwaCegarLoop]: 795 mSDtfsCounter, 2352 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2352 SdHoareTripleChecker+Valid, 1588 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:35,006 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2352 Valid, 1588 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 21:00:35,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 955 states. [2022-11-18 21:00:35,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 955 to 480. [2022-11-18 21:00:35,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 1.6576200417536535) internal successors, (794), 479 states have internal predecessors, (794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:35,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 794 transitions. [2022-11-18 21:00:35,069 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 794 transitions. Word has length 7 [2022-11-18 21:00:35,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:35,069 INFO L495 AbstractCegarLoop]: Abstraction has 480 states and 794 transitions. [2022-11-18 21:00:35,070 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:35,070 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 794 transitions. [2022-11-18 21:00:35,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:00:35,070 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:35,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:35,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 21:00:35,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:35,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:35,072 INFO L85 PathProgramCache]: Analyzing trace with hash 268255406, now seen corresponding path program 1 times [2022-11-18 21:00:35,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 21:00:35,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2091529470] [2022-11-18 21:00:35,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:35,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 21:00:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:35,112 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 21:00:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 21:00:35,230 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 21:00:35,230 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 21:00:35,232 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 21:00:35,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 21:00:35,238 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 21:00:35,244 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 21:00:35,287 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 21:00:35,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 09:00:35 BoogieIcfgContainer [2022-11-18 21:00:35,299 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 21:00:35,299 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 21:00:35,300 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 21:00:35,300 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 21:00:35,300 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:34" (3/4) ... [2022-11-18 21:00:35,303 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 21:00:35,304 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 21:00:35,305 INFO L158 Benchmark]: Toolchain (without parser) took 5651.96ms. Allocated memory was 121.6MB in the beginning and 243.3MB in the end (delta: 121.6MB). Free memory was 79.2MB in the beginning and 83.1MB in the end (delta: -3.8MB). Peak memory consumption was 117.9MB. Max. memory is 16.1GB. [2022-11-18 21:00:35,305 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 99.3MB in the beginning and 99.2MB in the end (delta: 61.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:35,306 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1002.87ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 79.1MB in the beginning and 123.5MB in the end (delta: -44.4MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. [2022-11-18 21:00:35,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 213.24ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 100.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-18 21:00:35,307 INFO L158 Benchmark]: Boogie Preprocessor took 151.88ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 88.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 21:00:35,308 INFO L158 Benchmark]: RCFGBuilder took 2989.22ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 87.6MB in the beginning and 174.3MB in the end (delta: -86.7MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. [2022-11-18 21:00:35,309 INFO L158 Benchmark]: TraceAbstraction took 1277.61ms. Allocated memory is still 243.3MB. Free memory was 173.2MB in the beginning and 83.1MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. [2022-11-18 21:00:35,309 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 243.3MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 21:00:35,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 121.6MB. Free memory was 99.3MB in the beginning and 99.2MB in the end (delta: 61.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1002.87ms. Allocated memory was 121.6MB in the beginning and 161.5MB in the end (delta: 39.8MB). Free memory was 79.1MB in the beginning and 123.5MB in the end (delta: -44.4MB). Peak memory consumption was 48.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 213.24ms. Allocated memory is still 161.5MB. Free memory was 123.5MB in the beginning and 100.4MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 151.88ms. Allocated memory is still 161.5MB. Free memory was 100.4MB in the beginning and 88.4MB in the end (delta: 12.0MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * RCFGBuilder took 2989.22ms. Allocated memory was 161.5MB in the beginning and 243.3MB in the end (delta: 81.8MB). Free memory was 87.6MB in the beginning and 174.3MB in the end (delta: -86.7MB). Peak memory consumption was 75.3MB. Max. memory is 16.1GB. * TraceAbstraction took 1277.61ms. Allocated memory is still 243.3MB. Free memory was 173.2MB in the beginning and 83.1MB in the end (delta: 90.2MB). Peak memory consumption was 90.2MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 243.3MB. Free memory is still 83.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 183, overapproximation of bitwiseAnd at line 190. 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_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 16); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (16 - 1); [L31] const SORT_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 12); [L32] const SORT_6 msb_SORT_6 = (SORT_6)1 << (12 - 1); [L34] const SORT_45 mask_SORT_45 = (SORT_45)-1 >> (sizeof(SORT_45) * 8 - 3); [L35] const SORT_45 msb_SORT_45 = (SORT_45)1 << (3 - 1); [L37] const SORT_87 mask_SORT_87 = (SORT_87)-1 >> (sizeof(SORT_87) * 8 - 17); [L38] const SORT_87 msb_SORT_87 = (SORT_87)1 << (17 - 1); [L40] const SORT_88 mask_SORT_88 = (SORT_88)-1 >> (sizeof(SORT_88) * 8 - 5); [L41] const SORT_88 msb_SORT_88 = (SORT_88)1 << (5 - 1); [L43] const SORT_91 mask_SORT_91 = (SORT_91)-1 >> (sizeof(SORT_91) * 8 - 9); [L44] const SORT_91 msb_SORT_91 = (SORT_91)1 << (9 - 1); [L46] const SORT_93 mask_SORT_93 = (SORT_93)-1 >> (sizeof(SORT_93) * 8 - 10); [L47] const SORT_93 msb_SORT_93 = (SORT_93)1 << (10 - 1); [L49] const SORT_96 mask_SORT_96 = (SORT_96)-1 >> (sizeof(SORT_96) * 8 - 11); [L50] const SORT_96 msb_SORT_96 = (SORT_96)1 << (11 - 1); [L52] const SORT_101 mask_SORT_101 = (SORT_101)-1 >> (sizeof(SORT_101) * 8 - 13); [L53] const SORT_101 msb_SORT_101 = (SORT_101)1 << (13 - 1); [L55] const SORT_104 mask_SORT_104 = (SORT_104)-1 >> (sizeof(SORT_104) * 8 - 14); [L56] const SORT_104 msb_SORT_104 = (SORT_104)1 << (14 - 1); [L58] const SORT_107 mask_SORT_107 = (SORT_107)-1 >> (sizeof(SORT_107) * 8 - 15); [L59] const SORT_107 msb_SORT_107 = (SORT_107)1 << (15 - 1); [L61] const SORT_140 mask_SORT_140 = (SORT_140)-1 >> (sizeof(SORT_140) * 8 - 7); [L62] const SORT_140 msb_SORT_140 = (SORT_140)1 << (7 - 1); [L64] const SORT_200 mask_SORT_200 = (SORT_200)-1 >> (sizeof(SORT_200) * 8 - 2); [L65] const SORT_200 msb_SORT_200 = (SORT_200)1 << (2 - 1); [L67] const SORT_359 mask_SORT_359 = (SORT_359)-1 >> (sizeof(SORT_359) * 8 - 4); [L68] const SORT_359 msb_SORT_359 = (SORT_359)1 << (4 - 1); [L70] const SORT_362 mask_SORT_362 = (SORT_362)-1 >> (sizeof(SORT_362) * 8 - 6); [L71] const SORT_362 msb_SORT_362 = (SORT_362)1 << (6 - 1); [L73] const SORT_365 mask_SORT_365 = (SORT_365)-1 >> (sizeof(SORT_365) * 8 - 8); [L74] const SORT_365 msb_SORT_365 = (SORT_365)1 << (8 - 1); [L76] const SORT_6 var_7 = 0; [L77] const SORT_1 var_19 = 1; [L78] const SORT_3 var_23 = 0; [L79] const SORT_1 var_30 = 0; [L80] const SORT_45 var_46 = 0; [L81] const SORT_45 var_50 = 2; [L82] const SORT_45 var_54 = 1; [L83] const SORT_45 var_59 = 4; [L84] const SORT_45 var_61 = 5; [L85] const SORT_45 var_65 = 3; [L86] const SORT_6 var_74 = 2; [L87] const SORT_88 var_89 = 0; [L88] const SORT_140 var_142 = 5; [L89] const SORT_140 var_146 = 4; [L90] const SORT_140 var_150 = 3; [L91] const SORT_140 var_154 = 2; [L92] const SORT_140 var_158 = 1; [L93] const SORT_140 var_162 = 0; [L94] const SORT_200 var_202 = 0; [L95] const SORT_3 var_209 = 65535; [L97] SORT_1 input_2; [L98] SORT_3 input_4; [L99] SORT_3 input_5; [L100] SORT_3 input_197; [L101] SORT_3 input_198; [L102] SORT_3 input_199; [L103] SORT_3 input_208; [L104] SORT_3 input_217; [L105] SORT_3 input_218; [L106] SORT_3 input_219; [L107] SORT_3 input_222; [L108] SORT_3 input_240; [L109] SORT_3 input_241; [L110] SORT_3 input_242; [L111] SORT_3 input_245; [L112] SORT_3 input_247; [L113] SORT_200 input_261; [L114] SORT_200 input_262; [L115] SORT_200 input_263; [L117] SORT_6 state_8 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L118] SORT_6 state_12 = __VERIFIER_nondet_ushort() & mask_SORT_6; [L119] SORT_3 state_24 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L120] SORT_3 state_26 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L121] SORT_3 state_28 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L122] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L123] SORT_3 state_33 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L124] SORT_3 state_35 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L125] SORT_3 state_37 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L126] SORT_3 state_39 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L127] SORT_3 state_41 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L128] SORT_3 state_43 = __VERIFIER_nondet_ushort() & mask_SORT_3; [L129] SORT_45 state_47 = __VERIFIER_nondet_uchar() & mask_SORT_45; [L131] SORT_6 init_9_arg_1 = var_7; [L132] state_8 = init_9_arg_1 [L133] SORT_6 init_13_arg_1 = var_7; [L134] state_12 = init_13_arg_1 [L135] SORT_3 init_25_arg_1 = var_23; [L136] state_24 = init_25_arg_1 [L137] SORT_3 init_27_arg_1 = var_23; [L138] state_26 = init_27_arg_1 [L139] SORT_3 init_29_arg_1 = var_23; [L140] state_28 = init_29_arg_1 [L141] SORT_1 init_32_arg_1 = var_30; [L142] state_31 = init_32_arg_1 [L143] SORT_3 init_34_arg_1 = var_23; [L144] state_33 = init_34_arg_1 [L145] SORT_3 init_36_arg_1 = var_23; [L146] state_35 = init_36_arg_1 [L147] SORT_3 init_38_arg_1 = var_23; [L148] state_37 = init_38_arg_1 [L149] SORT_3 init_40_arg_1 = var_23; [L150] state_39 = init_40_arg_1 [L151] SORT_3 init_42_arg_1 = var_23; [L152] state_41 = init_42_arg_1 [L153] SORT_3 init_44_arg_1 = var_23; [L154] state_43 = init_44_arg_1 [L155] SORT_45 init_48_arg_1 = var_46; [L156] state_47 = init_48_arg_1 VAL [init_13_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_101=8191, mask_SORT_104=16383, mask_SORT_107=32767, mask_SORT_140=127, mask_SORT_200=3, mask_SORT_3=65535, mask_SORT_359=15, mask_SORT_362=63, mask_SORT_365=255, mask_SORT_45=7, mask_SORT_6=4095, mask_SORT_87=4294967295, mask_SORT_88=31, mask_SORT_91=511, mask_SORT_93=1023, mask_SORT_96=2047, msb_SORT_1=1, msb_SORT_101=4096, msb_SORT_104=8192, msb_SORT_107=16384, msb_SORT_140=64, msb_SORT_200=2, msb_SORT_3=32768, msb_SORT_359=8, msb_SORT_362=32, msb_SORT_365=128, msb_SORT_45=4, msb_SORT_6=2048, msb_SORT_87=65536, msb_SORT_88=16, msb_SORT_91=256, msb_SORT_93=512, msb_SORT_96=1024, state_12=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_142=5, var_146=4, var_150=3, var_154=2, var_158=1, var_162=0, var_19=1, var_202=0, var_209=65535, var_23=0, var_30=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_7=0, var_74=2, var_89=0] [L159] input_2 = __VERIFIER_nondet_uchar() [L160] input_4 = __VERIFIER_nondet_ushort() [L161] input_5 = __VERIFIER_nondet_ushort() [L162] input_197 = __VERIFIER_nondet_ushort() [L163] input_198 = __VERIFIER_nondet_ushort() [L164] input_199 = __VERIFIER_nondet_ushort() [L165] input_208 = __VERIFIER_nondet_ushort() [L166] input_217 = __VERIFIER_nondet_ushort() [L167] input_218 = __VERIFIER_nondet_ushort() [L168] input_219 = __VERIFIER_nondet_ushort() [L169] input_222 = __VERIFIER_nondet_ushort() [L170] input_240 = __VERIFIER_nondet_ushort() [L171] input_241 = __VERIFIER_nondet_ushort() [L172] input_242 = __VERIFIER_nondet_ushort() [L173] input_245 = __VERIFIER_nondet_ushort() [L174] input_247 = __VERIFIER_nondet_ushort() [L175] input_261 = __VERIFIER_nondet_uchar() [L176] input_262 = __VERIFIER_nondet_uchar() [L177] input_263 = __VERIFIER_nondet_uchar() [L180] SORT_6 var_10_arg_0 = state_8; [L181] SORT_1 var_10 = var_10_arg_0 >> 0; [L182] SORT_1 var_11_arg_0 = var_10; [L183] SORT_1 var_11 = ~var_11_arg_0; [L184] SORT_6 var_14_arg_0 = state_12; [L185] SORT_1 var_14 = var_14_arg_0 >> 0; [L186] SORT_1 var_15_arg_0 = var_14; [L187] SORT_1 var_15 = ~var_15_arg_0; [L188] SORT_1 var_16_arg_0 = var_11; [L189] SORT_1 var_16_arg_1 = var_15; [L190] SORT_1 var_16 = var_16_arg_0 & var_16_arg_1; [L191] SORT_1 var_20_arg_0 = var_16; [L192] SORT_1 var_20 = ~var_20_arg_0; [L193] SORT_1 var_21_arg_0 = var_19; [L194] SORT_1 var_21_arg_1 = var_20; [L195] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; VAL [init_13_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, input_197=3, input_198=12, input_199=2, input_2=16, input_208=8, input_217=6, input_218=13, input_219=14, input_222=18, input_240=5, input_241=17, input_242=10, input_245=15, input_247=11, input_261=19, input_262=1, input_263=4, input_4=9, input_5=7, mask_SORT_1=1, mask_SORT_101=8191, mask_SORT_104=16383, mask_SORT_107=32767, mask_SORT_140=127, mask_SORT_200=3, mask_SORT_3=65535, mask_SORT_359=15, mask_SORT_362=63, mask_SORT_365=255, mask_SORT_45=7, mask_SORT_6=4095, mask_SORT_87=4294967295, mask_SORT_88=31, mask_SORT_91=511, mask_SORT_93=1023, mask_SORT_96=2047, msb_SORT_1=1, msb_SORT_101=4096, msb_SORT_104=8192, msb_SORT_107=16384, msb_SORT_140=64, msb_SORT_200=2, msb_SORT_3=32768, msb_SORT_359=8, msb_SORT_362=32, msb_SORT_365=128, msb_SORT_45=4, msb_SORT_6=2048, msb_SORT_87=65536, msb_SORT_88=16, msb_SORT_91=256, msb_SORT_93=512, msb_SORT_96=1024, state_12=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_10=0, var_10_arg_0=0, var_11=0, var_11_arg_0=0, var_14=0, var_142=5, var_146=4, var_14_arg_0=0, var_15=1, var_150=3, var_154=2, var_158=1, var_15_arg_0=0, var_16=0, var_162=0, var_16_arg_0=0, var_16_arg_1=1, var_19=1, var_20=255, var_202=0, var_209=65535, var_20_arg_0=0, var_21=1, var_21_arg_0=1, var_21_arg_1=255, var_23=0, var_30=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_7=0, var_74=2, var_89=0] [L196] var_21 = var_21 & mask_SORT_1 VAL [init_13_arg_1=0, init_25_arg_1=0, init_27_arg_1=0, init_29_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_44_arg_1=0, init_48_arg_1=0, init_9_arg_1=0, input_197=3, input_198=12, input_199=2, input_2=16, input_208=8, input_217=6, input_218=13, input_219=14, input_222=18, input_240=5, input_241=17, input_242=10, input_245=15, input_247=11, input_261=19, input_262=1, input_263=4, input_4=9, input_5=7, mask_SORT_1=1, mask_SORT_101=8191, mask_SORT_104=16383, mask_SORT_107=32767, mask_SORT_140=127, mask_SORT_200=3, mask_SORT_3=65535, mask_SORT_359=15, mask_SORT_362=63, mask_SORT_365=255, mask_SORT_45=7, mask_SORT_6=4095, mask_SORT_87=4294967295, mask_SORT_88=31, mask_SORT_91=511, mask_SORT_93=1023, mask_SORT_96=2047, msb_SORT_1=1, msb_SORT_101=4096, msb_SORT_104=8192, msb_SORT_107=16384, msb_SORT_140=64, msb_SORT_200=2, msb_SORT_3=32768, msb_SORT_359=8, msb_SORT_362=32, msb_SORT_365=128, msb_SORT_45=4, msb_SORT_6=2048, msb_SORT_87=65536, msb_SORT_88=16, msb_SORT_91=256, msb_SORT_93=512, msb_SORT_96=1024, state_12=0, state_24=0, state_26=0, state_28=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_43=0, state_47=0, state_8=0, var_10=0, var_10_arg_0=0, var_11=0, var_11_arg_0=0, var_14=0, var_142=5, var_146=4, var_14_arg_0=0, var_15=1, var_150=3, var_154=2, var_158=1, var_15_arg_0=0, var_16=0, var_162=0, var_16_arg_0=0, var_16_arg_1=1, var_19=1, var_20=255, var_202=0, var_209=65535, var_20_arg_0=0, var_21=1, var_21_arg_0=1, var_21_arg_1=255, var_23=0, var_30=0, var_46=0, var_50=2, var_54=1, var_59=4, var_61=5, var_65=3, var_7=0, var_74=2, var_89=0] [L197] SORT_1 bad_22_arg_0 = var_21; [L198] 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, 482 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2352 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2352 mSDsluCounter, 1588 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 793 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 795 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=482occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 475 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-18 21:00:35,366 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro --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 cd89032489cba73cfad07d869c8cd52bb6dfeb92075f997edf46a57f8d65328b --- 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-8393723 [2022-11-18 21:00:37,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 21:00:37,633 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 21:00:37,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 21:00:37,671 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 21:00:37,675 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 21:00:37,677 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 21:00:37,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 21:00:37,686 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 21:00:37,691 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 21:00:37,692 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 21:00:37,695 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 21:00:37,695 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 21:00:37,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 21:00:37,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 21:00:37,701 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 21:00:37,703 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 21:00:37,704 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 21:00:37,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 21:00:37,714 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 21:00:37,718 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 21:00:37,719 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 21:00:37,721 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 21:00:37,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 21:00:37,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 21:00:37,733 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 21:00:37,733 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 21:00:37,734 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 21:00:37,735 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 21:00:37,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 21:00:37,736 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 21:00:37,737 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 21:00:37,738 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 21:00:37,739 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 21:00:37,740 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 21:00:37,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 21:00:37,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 21:00:37,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 21:00:37,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 21:00:37,744 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 21:00:37,745 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 21:00:37,751 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 21:00:37,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 21:00:37,791 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 21:00:37,792 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 21:00:37,792 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 21:00:37,793 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 21:00:37,794 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 21:00:37,795 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 21:00:37,795 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 21:00:37,796 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 21:00:37,796 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 21:00:37,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 21:00:37,797 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 21:00:37,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 21:00:37,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 21:00:37,798 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 21:00:37,799 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 21:00:37,799 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 21:00:37,799 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 21:00:37,800 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 21:00:37,800 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 21:00:37,800 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 21:00:37,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 21:00:37,801 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 21:00:37,801 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:37,801 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 21:00:37,802 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 21:00:37,802 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 21:00:37,803 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 21:00:37,803 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 21:00:37,803 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 21:00:37,803 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 21:00:37,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 21:00:37,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 21:00:37,804 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cd89032489cba73cfad07d869c8cd52bb6dfeb92075f997edf46a57f8d65328b [2022-11-18 21:00:38,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 21:00:38,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 21:00:38,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 21:00:38,207 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 21:00:38,208 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 21:00:38,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c [2022-11-18 21:00:38,270 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/07def643d/7eb4d733ca944bee9ce560cc6dc16ce0/FLAG1f5bfa9ad [2022-11-18 21:00:38,938 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 21:00:38,939 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c [2022-11-18 21:00:38,956 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/07def643d/7eb4d733ca944bee9ce560cc6dc16ce0/FLAG1f5bfa9ad [2022-11-18 21:00:39,179 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/data/07def643d/7eb4d733ca944bee9ce560cc6dc16ce0 [2022-11-18 21:00:39,181 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 21:00:39,182 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 21:00:39,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:39,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 21:00:39,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 21:00:39,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:39,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a5a17ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39, skipping insertion in model container [2022-11-18 21:00:39,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:39,197 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 21:00:39,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 21:00:39,440 WARN L234 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_08550721-19fe-4912-b5be-84eaaccc2903/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c[1107,1120] [2022-11-18 21:00:39,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:39,855 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 21:00:39,866 WARN L234 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_08550721-19fe-4912-b5be-84eaaccc2903/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsa16a_p1.c[1107,1120] [2022-11-18 21:00:39,983 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 21:00:39,995 INFO L208 MainTranslator]: Completed translation [2022-11-18 21:00:39,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39 WrapperNode [2022-11-18 21:00:39,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 21:00:39,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:39,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 21:00:39,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 21:00:40,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,146 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1774 [2022-11-18 21:00:40,146 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 21:00:40,147 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 21:00:40,147 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 21:00:40,147 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 21:00:40,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,173 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,174 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,216 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,222 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,230 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,252 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 21:00:40,253 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 21:00:40,253 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 21:00:40,253 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 21:00:40,254 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (1/1) ... [2022-11-18 21:00:40,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 21:00:40,276 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 21:00:40,287 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 21:00:40,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 21:00:40,321 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 21:00:40,321 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 21:00:40,887 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 21:00:40,889 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 21:00:43,989 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 21:00:43,998 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 21:00:43,999 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 21:00:44,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:44 BoogieIcfgContainer [2022-11-18 21:00:44,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 21:00:44,004 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 21:00:44,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 21:00:44,007 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 21:00:44,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 09:00:39" (1/3) ... [2022-11-18 21:00:44,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5609d229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:44, skipping insertion in model container [2022-11-18 21:00:44,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 09:00:39" (2/3) ... [2022-11-18 21:00:44,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5609d229 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 09:00:44, skipping insertion in model container [2022-11-18 21:00:44,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 09:00:44" (3/3) ... [2022-11-18 21:00:44,011 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsa16a_p1.c [2022-11-18 21:00:44,031 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 21:00:44,031 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 21:00:44,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 21:00:44,107 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;@35c593b5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 21:00:44,107 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 21:00:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:44,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 21:00:44,118 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:44,119 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 21:00:44,120 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:44,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:44,126 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 21:00:44,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:44,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1214969834] [2022-11-18 21:00:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:44,142 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:44,142 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:44,151 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:00:44,201 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-18 21:00:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:44,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 25 conjunts are in the unsatisfiable core [2022-11-18 21:00:44,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:44,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:44,775 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 21:00:44,776 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:44,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1214969834] [2022-11-18 21:00:44,777 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1214969834] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 21:00:44,777 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 21:00:44,777 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 21:00:44,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994388827] [2022-11-18 21:00:44,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 21:00:44,785 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 21:00:44,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:44,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 21:00:44,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 21:00:44,835 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:45,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:45,194 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 21:00:45,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 21:00:45,197 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-18 21:00:45,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:45,206 INFO L225 Difference]: With dead ends: 20 [2022-11-18 21:00:45,207 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 21:00:45,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-18 21:00:45,215 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:45,217 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-11-18 21:00:45,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 21:00:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 21:00:45,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 21:00:45,259 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 21:00:45,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:45,259 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 21:00:45,260 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:45,260 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 21:00:45,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 21:00:45,261 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:45,261 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 21:00:45,283 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:45,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:45,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:45,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:45,478 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 21:00:45,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:45,482 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1406016948] [2022-11-18 21:00:45,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 21:00:45,483 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:45,483 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:45,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:00:45,488 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-18 21:00:46,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 21:00:46,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-18 21:00:46,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:46,972 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:46,973 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:00:47,845 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:47,845 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:00:47,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1406016948] [2022-11-18 21:00:47,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1406016948] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:00:47,846 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:00:47,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 21:00:47,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250039073] [2022-11-18 21:00:47,847 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:00:47,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 21:00:47,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:00:47,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 21:00:47,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 21:00:47,850 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:48,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:00:48,994 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 21:00:48,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 21:00:48,996 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-18 21:00:48,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:00:48,997 INFO L225 Difference]: With dead ends: 16 [2022-11-18 21:00:48,997 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 21:00:48,998 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-11-18 21:00:48,999 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 4 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-11-18 21:00:49,001 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 24 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 12 Unchecked, 1.1s Time] [2022-11-18 21:00:49,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 21:00:49,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 21:00:49,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 21:00:49,009 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 21:00:49,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:00:49,011 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 21:00:49,012 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:00:49,013 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 21:00:49,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 21:00:49,014 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:00:49,015 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 21:00:49,040 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-18 21:00:49,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:49,235 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:00:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:00:49,236 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 21:00:49,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:00:49,242 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2002647730] [2022-11-18 21:00:49,242 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 21:00:49,242 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:00:49,242 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:00:49,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:00:49,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-18 21:00:50,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 21:00:50,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:00:50,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 3047 conjuncts, 77 conjunts are in the unsatisfiable core [2022-11-18 21:00:51,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:00:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:00:51,656 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 21:01:41,670 WARN L233 SmtUtils]: Spent 46.12s on a formula simplification. DAG size of input: 256 DAG size of output: 207 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:01:41,884 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:01:41,884 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 21:01:41,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2002647730] [2022-11-18 21:01:41,885 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2002647730] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 21:01:41,885 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 21:01:41,885 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 21:01:41,885 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940353599] [2022-11-18 21:01:41,885 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 21:01:41,886 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 21:01:41,886 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 21:01:41,887 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 21:01:41,887 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=66, Unknown=1, NotChecked=0, Total=90 [2022-11-18 21:01:41,887 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:42,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 21:01:42,629 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 21:01:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-11-18 21:01:42,631 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-18 21:01:42,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 21:01:42,631 INFO L225 Difference]: With dead ends: 19 [2022-11-18 21:01:42,631 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 21:01:42,632 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 48.9s TimeCoverageRelationStatistics Valid=51, Invalid=130, Unknown=1, NotChecked=0, Total=182 [2022-11-18 21:01:42,633 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 8 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 23 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-11-18 21:01:42,633 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 30 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 23 Unchecked, 0.6s Time] [2022-11-18 21:01:42,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 21:01:42,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-18 21:01:42,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 21:01:42,638 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 21:01:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 21:01:42,638 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 21:01:42,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-18 21:01:42,638 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 21:01:42,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 21:01:42,639 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 21:01:42,639 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 21:01:42,665 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-18 21:01:42,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:01:42,855 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 21:01:42,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 21:01:42,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 21:01:42,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 21:01:42,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1068691878] [2022-11-18 21:01:42,860 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 21:01:42,860 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-18 21:01:42,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 21:01:42,862 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-18 21:01:42,863 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_08550721-19fe-4912-b5be-84eaaccc2903/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-18 21:01:44,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-11-18 21:01:44,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 21:01:44,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 4509 conjuncts, 178 conjunts are in the unsatisfiable core [2022-11-18 21:01:44,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 21:01:57,113 WARN L233 SmtUtils]: Spent 6.98s on a formula simplification. DAG size of input: 330 DAG size of output: 231 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 21:02:03,602 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 21:02:03,602 INFO L328 TraceCheckSpWp]: Computing backward predicates...