./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 --- 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 19:39:44,254 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:39:44,261 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:39:44,307 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:39:44,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:39:44,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:39:44,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:39:44,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:39:44,327 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:39:44,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:39:44,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:39:44,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:39:44,335 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:39:44,342 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:39:44,344 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:39:44,345 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:39:44,348 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:39:44,351 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:39:44,353 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:39:44,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:39:44,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:39:44,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:39:44,366 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:39:44,367 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:39:44,377 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:39:44,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:39:44,380 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:39:44,381 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:39:44,383 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:39:44,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:39:44,385 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:39:44,386 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:39:44,389 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:39:44,390 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:39:44,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:39:44,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:39:44,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:39:44,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:39:44,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:39:44,397 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:39:44,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:39:44,399 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:39:44,428 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:39:44,429 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:39:44,429 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:39:44,430 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:39:44,431 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:39:44,431 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:39:44,432 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:39:44,432 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:39:44,432 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:39:44,433 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:39:44,434 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:39:44,434 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:39:44,434 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:39:44,435 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:39:44,435 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:39:44,435 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:39:44,435 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:39:44,436 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:39:44,436 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:39:44,436 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:39:44,436 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:39:44,437 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:44,437 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:39:44,437 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:39:44,437 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:39:44,438 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:39:44,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:39:44,438 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:39:44,438 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:39:44,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:39:44,439 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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 [2022-11-18 19:39:44,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:39:44,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:39:44,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:39:44,851 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:39:44,852 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:39:44,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-18 19:39:44,941 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/6900238e6/79694b8fc70f4a588866f1d3ca437e70/FLAGcc1d0dd52 [2022-11-18 19:39:45,615 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:39:45,615 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-18 19:39:45,632 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/6900238e6/79694b8fc70f4a588866f1d3ca437e70/FLAGcc1d0dd52 [2022-11-18 19:39:45,896 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/6900238e6/79694b8fc70f4a588866f1d3ca437e70 [2022-11-18 19:39:45,900 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:39:45,902 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:39:45,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:45,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:39:45,918 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:39:45,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:45" (1/1) ... [2022-11-18 19:39:45,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7aae6339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:45, skipping insertion in model container [2022-11-18 19:39:45,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:45" (1/1) ... [2022-11-18 19:39:45,936 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:39:45,970 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:39:46,210 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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-18 19:39:46,326 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:46,331 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:39:46,346 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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-18 19:39:46,415 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:46,430 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:39:46,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46 WrapperNode [2022-11-18 19:39:46,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:46,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:46,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:39:46,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:39:46,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,510 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 375 [2022-11-18 19:39:46,511 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:46,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:39:46,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:39:46,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:39:46,525 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,526 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,532 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,533 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,552 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,555 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,558 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,565 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:39:46,566 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:39:46,566 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:39:46,566 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:39:46,567 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (1/1) ... [2022-11-18 19:39:46,576 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:46,596 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:46,611 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:39:46,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:39:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:39:46,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:39:46,817 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:39:46,833 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:39:47,652 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:39:47,662 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:39:47,662 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:39:47,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:47 BoogieIcfgContainer [2022-11-18 19:39:47,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:39:47,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:39:47,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:39:47,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:39:47,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:39:45" (1/3) ... [2022-11-18 19:39:47,678 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe1fc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:47, skipping insertion in model container [2022-11-18 19:39:47,679 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:46" (2/3) ... [2022-11-18 19:39:47,680 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fe1fc7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:47, skipping insertion in model container [2022-11-18 19:39:47,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:47" (3/3) ... [2022-11-18 19:39:47,682 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2022-11-18 19:39:47,709 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:39:47,709 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:39:47,768 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:39:47,777 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;@3446e7e2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:39:47,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:39:47,783 INFO L276 IsEmpty]: Start isEmpty. Operand has 56 states, 54 states have (on average 1.6296296296296295) internal successors, (88), 55 states have internal predecessors, (88), 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 19:39:47,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:39:47,792 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:47,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:47,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:39:47,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:47,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1178400828, now seen corresponding path program 1 times [2022-11-18 19:39:47,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:47,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324491579] [2022-11-18 19:39:47,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:47,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:48,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:48,499 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 19:39:48,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:39:48,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324491579] [2022-11-18 19:39:48,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1324491579] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:48,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:48,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:39:48,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728623908] [2022-11-18 19:39:48,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:48,510 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:39:48,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:39:48,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:39:48,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:39:48,556 INFO L87 Difference]: Start difference. First operand has 56 states, 54 states have (on average 1.6296296296296295) internal successors, (88), 55 states have internal predecessors, (88), 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 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 19:39:48,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:48,718 INFO L93 Difference]: Finished difference Result 163 states and 267 transitions. [2022-11-18 19:39:48,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:39:48,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 19:39:48,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:48,742 INFO L225 Difference]: With dead ends: 163 [2022-11-18 19:39:48,742 INFO L226 Difference]: Without dead ends: 109 [2022-11-18 19:39:48,746 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 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 19:39:48,752 INFO L413 NwaCegarLoop]: 95 mSDtfsCounter, 222 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:48,755 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 198 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:39:48,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-18 19:39:48,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 54. [2022-11-18 19:39:48,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 53 states have (on average 1.5849056603773586) internal successors, (84), 53 states have internal predecessors, (84), 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 19:39:48,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 84 transitions. [2022-11-18 19:39:48,811 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 84 transitions. Word has length 11 [2022-11-18 19:39:48,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:48,812 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 84 transitions. [2022-11-18 19:39:48,813 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 19:39:48,814 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 84 transitions. [2022-11-18 19:39:48,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-18 19:39:48,815 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:48,816 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:48,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:39:48,816 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:39:48,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:48,817 INFO L85 PathProgramCache]: Analyzing trace with hash 2126004980, now seen corresponding path program 1 times [2022-11-18 19:39:48,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:39:48,818 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420766466] [2022-11-18 19:39:48,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:48,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:39:48,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:39:48,904 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:39:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:39:48,964 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:39:48,965 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:39:48,967 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:39:48,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:39:48,975 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 19:39:48,979 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:39:49,012 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 19:39:49,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:39:49 BoogieIcfgContainer [2022-11-18 19:39:49,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:39:49,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:39:49,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:39:49,026 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:39:49,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:47" (3/4) ... [2022-11-18 19:39:49,030 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:39:49,031 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:39:49,032 INFO L158 Benchmark]: Toolchain (without parser) took 3129.49ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 94.5MB in the beginning and 111.3MB in the end (delta: -16.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-18 19:39:49,033 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 134.2MB. Free memory was 111.4MB in the beginning and 111.3MB in the end (delta: 73.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:39:49,034 INFO L158 Benchmark]: CACSL2BoogieTranslator took 524.28ms. Allocated memory is still 134.2MB. Free memory was 94.3MB in the beginning and 101.6MB in the end (delta: -7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:39:49,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.55ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 97.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:39:49,035 INFO L158 Benchmark]: Boogie Preprocessor took 53.32ms. Allocated memory is still 134.2MB. Free memory was 97.9MB in the beginning and 95.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:39:49,036 INFO L158 Benchmark]: RCFGBuilder took 1099.83ms. Allocated memory is still 134.2MB. Free memory was 95.3MB in the beginning and 65.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-18 19:39:49,037 INFO L158 Benchmark]: TraceAbstraction took 1356.12ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 64.7MB in the beginning and 112.4MB in the end (delta: -47.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:39:49,037 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 178.3MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:39:49,042 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 134.2MB. Free memory was 111.4MB in the beginning and 111.3MB in the end (delta: 73.3kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 524.28ms. Allocated memory is still 134.2MB. Free memory was 94.3MB in the beginning and 101.6MB in the end (delta: -7.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.55ms. Allocated memory is still 134.2MB. Free memory was 101.6MB in the beginning and 97.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.32ms. Allocated memory is still 134.2MB. Free memory was 97.9MB in the beginning and 95.3MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1099.83ms. Allocated memory is still 134.2MB. Free memory was 95.3MB in the beginning and 65.5MB in the end (delta: 29.8MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1356.12ms. Allocated memory was 134.2MB in the beginning and 178.3MB in the end (delta: 44.0MB). Free memory was 64.7MB in the beginning and 112.4MB in the end (delta: -47.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 178.3MB. Free memory is still 111.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 89, overapproximation of bitwiseOr at line 87, overapproximation of bitwiseAnd at line 92. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L32] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L34] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 2); [L35] const SORT_47 msb_SORT_47 = (SORT_47)1 << (2 - 1); [L37] const SORT_1 var_4 = 0; [L38] const SORT_7 var_9 = 1; [L39] const SORT_12 var_13 = 0; [L40] const SORT_1 var_21 = 1; [L41] const SORT_12 var_28 = 2; [L42] const SORT_12 var_31 = 1; [L43] const SORT_12 var_35 = 4; [L44] const SORT_12 var_38 = 6; [L45] const SORT_12 var_41 = 5; [L46] const SORT_12 var_45 = 3; [L47] const SORT_7 var_57 = 0; [L49] SORT_1 input_2; [L50] SORT_1 input_3; [L51] SORT_12 input_55; [L52] SORT_12 input_62; [L53] SORT_12 input_75; [L55] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_12 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_12; [L58] SORT_1 init_6_arg_1 = var_4; [L59] state_5 = init_6_arg_1 [L60] SORT_12 init_15_arg_1 = var_13; [L61] state_14 = init_15_arg_1 VAL [init_15_arg_1=0, init_6_arg_1=0, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_9=1] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_55 = __VERIFIER_nondet_uchar() [L67] input_62 = __VERIFIER_nondet_uchar() [L68] input_75 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_8_arg_0 = state_5; VAL [init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_3=5, input_55=3, input_62=2, input_75=4, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_8_arg_0=0, var_9=1] [L72] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 VAL [init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_3=5, input_55=3, input_62=2, input_75=4, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_8_arg_0=0, var_9=1] [L73] SORT_7 var_8 = var_8_arg_0; [L74] SORT_7 var_10_arg_0 = var_8; [L75] SORT_7 var_10_arg_1 = var_9; [L76] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L77] SORT_1 var_11_arg_0 = var_10; [L78] SORT_1 var_11 = ~var_11_arg_0; [L79] SORT_12 var_16_arg_0 = state_14; VAL [init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_3=5, input_55=3, input_62=2, input_75=4, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_10=0, var_10_arg_0=0, var_10_arg_1=1, var_11_arg_0=0, var_13=0, var_16_arg_0=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_8=0, var_8_arg_0=0, var_9=1] [L80] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 VAL [init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_3=5, input_55=3, input_62=2, input_75=4, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_10=0, var_10_arg_0=0, var_10_arg_1=1, var_11_arg_0=0, var_13=0, var_16_arg_0=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_8=0, var_8_arg_0=0, var_9=1] [L81] SORT_7 var_16 = var_16_arg_0; [L82] SORT_7 var_17_arg_0 = var_16; [L83] SORT_7 var_17_arg_1 = var_9; [L84] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L85] SORT_1 var_18_arg_0 = var_11; [L86] SORT_1 var_18_arg_1 = var_17; [L87] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L88] SORT_1 var_22_arg_0 = var_18; [L89] SORT_1 var_22 = ~var_22_arg_0; [L90] SORT_1 var_23_arg_0 = var_21; [L91] SORT_1 var_23_arg_1 = var_22; [L92] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; VAL [init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_3=5, input_55=3, input_62=2, input_75=4, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_10=0, var_10_arg_0=0, var_10_arg_1=1, var_11=0, var_11_arg_0=0, var_13=0, var_16=0, var_16_arg_0=0, var_17=0, var_17_arg_0=0, var_17_arg_1=1, var_18=0, var_18_arg_0=0, var_18_arg_1=0, var_21=1, var_22=2, var_22_arg_0=0, var_23=1, var_23_arg_0=1, var_23_arg_1=2, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_8=0, var_8_arg_0=0, var_9=1] [L93] var_23 = var_23 & mask_SORT_1 VAL [init_15_arg_1=0, init_6_arg_1=0, input_2=1, input_3=5, input_55=3, input_62=2, input_75=4, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_10=0, var_10_arg_0=0, var_10_arg_1=1, var_11=0, var_11_arg_0=0, var_13=0, var_16=0, var_16_arg_0=0, var_17=0, var_17_arg_0=0, var_17_arg_1=1, var_18=0, var_18_arg_0=0, var_18_arg_1=0, var_21=1, var_22=2, var_22_arg_0=0, var_23=1, var_23_arg_0=1, var_23_arg_1=2, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_8=0, var_8_arg_0=0, var_9=1] [L94] SORT_1 bad_24_arg_0 = var_23; [L95] CALL __VERIFIER_assert(!(bad_24_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, 56 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 222 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 222 mSDsluCounter, 198 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 103 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 95 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=56occurred 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, 55 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 19:39:49,087 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 --- 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 19:39:51,854 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:39:51,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:39:51,884 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:39:51,884 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:39:51,886 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:39:51,888 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:39:51,890 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:39:51,893 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:39:51,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:39:51,896 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:39:51,898 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:39:51,898 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:39:51,900 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:39:51,901 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:39:51,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:39:51,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:39:51,906 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:39:51,908 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:39:51,911 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:39:51,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:39:51,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:39:51,916 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:39:51,917 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:39:51,922 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:39:51,922 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:39:51,923 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:39:51,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:39:51,924 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:39:51,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:39:51,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:39:51,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:39:51,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:39:51,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:39:51,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:39:51,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:39:51,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:39:51,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:39:51,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:39:51,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:39:51,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:39:51,936 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 19:39:51,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:39:51,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:39:51,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:39:51,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:39:51,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:39:51,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:39:51,998 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:39:51,999 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:39:51,999 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:39:52,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:39:52,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:39:52,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:39:52,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:39:52,002 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:39:52,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:39:52,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:39:52,003 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:39:52,003 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:39:52,003 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:39:52,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:39:52,004 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:39:52,004 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:39:52,004 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:39:52,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:52,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:39:52,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:39:52,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:39:52,005 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:39:52,006 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:39:52,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:39:52,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:39:52,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:39:52,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:39:52,007 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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 [2022-11-18 19:39:52,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:39:52,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:39:52,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:39:52,537 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:39:52,540 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:39:52,542 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-18 19:39:52,636 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/3b14fa670/0bf241ada21c40c78dd5968d24613fe0/FLAGd6fb15381 [2022-11-18 19:39:53,348 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:39:53,349 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-18 19:39:53,371 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/3b14fa670/0bf241ada21c40c78dd5968d24613fe0/FLAGd6fb15381 [2022-11-18 19:39:53,657 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/data/3b14fa670/0bf241ada21c40c78dd5968d24613fe0 [2022-11-18 19:39:53,660 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:39:53,665 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:39:53,668 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:53,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:39:53,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:39:53,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:53" (1/1) ... [2022-11-18 19:39:53,676 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@510f97f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:53, skipping insertion in model container [2022-11-18 19:39:53,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:39:53" (1/1) ... [2022-11-18 19:39:53,687 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:39:53,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:39:53,905 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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-18 19:39:54,019 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:54,024 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:39:54,048 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_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-18 19:39:54,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:39:54,144 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:39:54,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54 WrapperNode [2022-11-18 19:39:54,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:39:54,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:54,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:39:54,147 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:39:54,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,188 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,249 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 270 [2022-11-18 19:39:54,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:39:54,263 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:39:54,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:39:54,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:39:54,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,308 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,327 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,330 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,343 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:39:54,344 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:39:54,345 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:39:54,345 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:39:54,346 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (1/1) ... [2022-11-18 19:39:54,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:39:54,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:39:54,405 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:39:54,435 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:39:54,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:39:54,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:39:54,617 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:39:54,633 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:39:55,203 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:39:55,245 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:39:55,246 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:39:55,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:55 BoogieIcfgContainer [2022-11-18 19:39:55,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:39:55,251 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:39:55,258 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:39:55,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:39:55,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:39:53" (1/3) ... [2022-11-18 19:39:55,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebbf17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:55, skipping insertion in model container [2022-11-18 19:39:55,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:39:54" (2/3) ... [2022-11-18 19:39:55,265 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ebbf17e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:39:55, skipping insertion in model container [2022-11-18 19:39:55,265 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:39:55" (3/3) ... [2022-11-18 19:39:55,268 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2022-11-18 19:39:55,293 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:39:55,294 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:39:55,389 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:39:55,402 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;@2841c577, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:39:55,403 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:39:55,411 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 19:39:55,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:39:55,424 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:55,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:39:55,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:39:55,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:55,438 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 19:39:55,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:55,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [394540022] [2022-11-18 19:39:55,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:55,458 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 19:39:55,459 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:55,467 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:39:55,512 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:39:55,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:55,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-18 19:39:55,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:56,015 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 19:39:56,016 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:39:56,017 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:39:56,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [394540022] [2022-11-18 19:39:56,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [394540022] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:39:56,019 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:39:56,019 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:39:56,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433135] [2022-11-18 19:39:56,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:39:56,028 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:39:56,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:39:56,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:39:56,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:39:56,069 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 19:39:56,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:39:56,158 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 19:39:56,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:39:56,162 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 19:39:56,162 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:39:56,172 INFO L225 Difference]: With dead ends: 20 [2022-11-18 19:39:56,172 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 19:39:56,176 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 19:39:56,181 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:39:56,182 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-18 19:39:56,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 19:39:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 19:39:56,225 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 19:39:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 19:39:56,228 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 19:39:56,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:39:56,229 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 19:39:56,229 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 19:39:56,229 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 19:39:56,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:39:56,230 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:39:56,230 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:39:56,251 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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)] Ended with exit code 0 [2022-11-18 19:39:56,439 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:39:56,439 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:39:56,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:39:56,440 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 19:39:56,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:39:56,443 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [991227381] [2022-11-18 19:39:56,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:39:56,444 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 19:39:56,444 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:39:56,445 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:39:56,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:39:56,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:39:56,703 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-18 19:39:56,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:39:57,603 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 19:39:57,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:40:23,004 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-18 19:40:23,005 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:40:23,005 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [991227381] [2022-11-18 19:40:23,006 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [991227381] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:40:23,006 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:40:23,006 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-18 19:40:23,007 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [647504722] [2022-11-18 19:40:23,007 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:40:23,008 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-18 19:40:23,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:40:23,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-18 19:40:23,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-18 19:40:23,011 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 19:40:23,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:40:23,215 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-18 19:40:23,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-18 19:40:23,216 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 19:40:23,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:40:23,217 INFO L225 Difference]: With dead ends: 16 [2022-11-18 19:40:23,217 INFO L226 Difference]: Without dead ends: 14 [2022-11-18 19:40:23,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-18 19:40:23,219 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:40:23,220 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-11-18 19:40:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-18 19:40:23,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-18 19:40:23,225 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 19:40:23,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 19:40:23,226 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 19:40:23,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:40:23,227 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 19:40:23,227 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 19:40:23,227 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 19:40:23,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:40:23,228 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:40:23,229 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 19:40:23,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:40:23,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:40:23,444 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:40:23,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:40:23,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 19:40:23,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:40:23,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1461831211] [2022-11-18 19:40:23,446 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:40:23,446 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 19:40:23,447 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:40:23,448 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:40:23,460 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:40:23,753 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:40:23,753 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:40:23,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-18 19:40:23,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:40:24,677 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 19:40:24,677 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:41:25,841 WARN L233 SmtUtils]: Spent 7.66s on a formula simplification. DAG size of input: 553 DAG size of output: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:41:27,299 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 19:41:27,299 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:41:27,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1461831211] [2022-11-18 19:41:27,300 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1461831211] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:41:27,300 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:41:27,301 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:41:27,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797393125] [2022-11-18 19:41:27,301 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:41:27,302 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:41:27,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:41:27,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:41:27,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-18 19:41:27,303 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 19:41:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:41:27,619 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-18 19:41:27,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:41:27,621 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 19:41:27,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:41:27,622 INFO L225 Difference]: With dead ends: 19 [2022-11-18 19:41:27,622 INFO L226 Difference]: Without dead ends: 17 [2022-11-18 19:41:27,623 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 9.2s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-18 19:41:27,624 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-18 19:41:27,625 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 27 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 22 Unchecked, 0.1s Time] [2022-11-18 19:41:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-18 19:41:27,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-18 19:41:27,631 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 19:41:27,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 19:41:27,632 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 19:41:27,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:41:27,632 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 19:41:27,633 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 19:41:27,633 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 19:41:27,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:41:27,634 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:41:27,634 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 19:41:27,651 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:41:27,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:41:27,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:41:27,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:41:27,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 19:41:27,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:41:27,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1357133266] [2022-11-18 19:41:27,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:41:27,851 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 19:41:27,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:41:27,853 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:41:27,860 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:41:28,177 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 19:41:28,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:41:28,191 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 179 conjunts are in the unsatisfiable core [2022-11-18 19:41:28,200 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:41:33,223 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:41:33,223 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1357133266] [2022-11-18 19:41:33,224 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 19:41:33,239 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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)] Ended with exit code 0 [2022-11-18 19:41:33,431 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 19:41:33,431 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: Maybe an infinite loop at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:345) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:188) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:295) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:281) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:90) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:199) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:57) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:209) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:121) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:336) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:262) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-11-18 19:41:33,435 INFO L158 Benchmark]: Toolchain (without parser) took 99769.89ms. Allocated memory was 60.8MB in the beginning and 356.5MB in the end (delta: 295.7MB). Free memory was 39.6MB in the beginning and 285.4MB in the end (delta: -245.9MB). Peak memory consumption was 218.4MB. Max. memory is 16.1GB. [2022-11-18 19:41:33,435 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:41:33,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 477.07ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 41.2MB in the end (delta: -1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-18 19:41:33,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 115.71ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 38.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:41:33,436 INFO L158 Benchmark]: Boogie Preprocessor took 80.86ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 35.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:41:33,437 INFO L158 Benchmark]: RCFGBuilder took 904.44ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.9MB in the beginning and 54.7MB in the end (delta: -18.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2022-11-18 19:41:33,437 INFO L158 Benchmark]: TraceAbstraction took 98182.66ms. Allocated memory was 73.4MB in the beginning and 356.5MB in the end (delta: 283.1MB). Free memory was 54.0MB in the beginning and 285.4MB in the end (delta: -231.4MB). Peak memory consumption was 220.0MB. Max. memory is 16.1GB. [2022-11-18 19:41:33,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 60.8MB. Free memory is still 42.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 477.07ms. Allocated memory is still 60.8MB. Free memory was 39.4MB in the beginning and 41.2MB in the end (delta: -1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 115.71ms. Allocated memory is still 60.8MB. Free memory was 41.2MB in the beginning and 38.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.86ms. Allocated memory is still 60.8MB. Free memory was 38.0MB in the beginning and 35.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 904.44ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.9MB in the beginning and 54.7MB in the end (delta: -18.8MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * TraceAbstraction took 98182.66ms. Allocated memory was 73.4MB in the beginning and 356.5MB in the end (delta: 283.1MB). Free memory was 54.0MB in the beginning and 285.4MB in the end (delta: -231.4MB). Peak memory consumption was 220.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: Maybe an infinite loop de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: Maybe an infinite loop: de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPushUtilsForSubsetPush.sequentialSubsetPush(QuantifierPushUtilsForSubsetPush.java:130) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-11-18 19:41:33,491 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3d6a8f83-e586-40df-a1b1-d3b75e6c70ba/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Maybe an infinite loop