./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8393723b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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_3f376ca7-b867-49a9-8d71-14ae7664708e/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 f6d5806dc2a069b52e5e35ee04f1ef92bf49979b38b271db0ee312abca8de37e --- 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 19:33:48,347 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:33:48,349 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:33:48,376 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:33:48,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:33:48,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:33:48,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:33:48,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:33:48,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:33:48,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:33:48,384 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:33:48,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:33:48,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:33:48,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:33:48,388 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:33:48,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:33:48,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:33:48,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:33:48,393 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:33:48,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:33:48,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:33:48,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:33:48,404 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:33:48,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:33:48,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:33:48,424 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:33:48,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:33:48,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:33:48,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:33:48,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:33:48,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:33:48,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:33:48,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:33:48,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:33:48,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:33:48,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:33:48,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:33:48,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:33:48,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:33:48,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:33:48,437 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:33:48,438 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-18 19:33:48,468 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:33:48,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:33:48,475 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:33:48,475 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:33:48,476 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:33:48,477 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:33:48,478 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:33:48,478 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:33:48,478 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:33:48,479 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:33:48,480 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-18 19:33:48,480 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:33:48,480 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:33:48,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:33:48,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:33:48,481 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:33:48,481 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:33:48,481 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:33:48,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:33:48,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:33:48,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:33:48,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:33:48,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:33:48,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:33:48,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:33:48,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-18 19:33:48,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-18 19:33:48,484 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:33:48,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:33:48,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:33:48,484 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_3f376ca7-b867-49a9-8d71-14ae7664708e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6d5806dc2a069b52e5e35ee04f1ef92bf49979b38b271db0ee312abca8de37e [2022-11-18 19:33:48,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:33:48,853 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:33:48,856 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:33:48,858 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:33:48,858 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:33:48,860 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2022-11-18 19:33:48,933 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/15427d99f/507821c737f945d08cf43d614593d8be/FLAG7756121d7 [2022-11-18 19:33:49,509 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:33:49,510 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2022-11-18 19:33:49,531 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/15427d99f/507821c737f945d08cf43d614593d8be/FLAG7756121d7 [2022-11-18 19:33:49,822 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/15427d99f/507821c737f945d08cf43d614593d8be [2022-11-18 19:33:49,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:33:49,830 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:33:49,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:33:49,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:33:49,837 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:33:49,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:49" (1/1) ... [2022-11-18 19:33:49,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a0b25a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:49, skipping insertion in model container [2022-11-18 19:33:49,839 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:49" (1/1) ... [2022-11-18 19:33:49,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:33:49,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:33:50,053 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_3f376ca7-b867-49a9-8d71-14ae7664708e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1107,1120] [2022-11-18 19:33:50,131 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:33:50,134 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:33:50,145 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_3f376ca7-b867-49a9-8d71-14ae7664708e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1107,1120] [2022-11-18 19:33:50,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:33:50,211 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:33:50,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50 WrapperNode [2022-11-18 19:33:50,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:33:50,213 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:33:50,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:33:50,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:33:50,229 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,320 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 317 [2022-11-18 19:33:50,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:33:50,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:33:50,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:33:50,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:33:50,330 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,335 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,335 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,366 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,377 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:33:50,378 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:33:50,378 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:33:50,378 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:33:50,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (1/1) ... [2022-11-18 19:33:50,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:33:50,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:50,422 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:33:50,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:33:50,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:33:50,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:33:50,588 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:33:50,590 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:33:51,149 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:33:51,157 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:33:51,157 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:33:51,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:51 BoogieIcfgContainer [2022-11-18 19:33:51,159 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:33:51,161 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:33:51,161 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:33:51,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:33:51,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:33:49" (1/3) ... [2022-11-18 19:33:51,166 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1ee4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:51, skipping insertion in model container [2022-11-18 19:33:51,166 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:50" (2/3) ... [2022-11-18 19:33:51,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13b1ee4d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:51, skipping insertion in model container [2022-11-18 19:33:51,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:51" (3/3) ... [2022-11-18 19:33:51,168 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vlunc.c [2022-11-18 19:33:51,208 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:33:51,208 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:33:51,260 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:33:51,268 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;@504b2ccb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:33:51,268 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:33:51,273 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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 19:33:51,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-18 19:33:51,281 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:51,282 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:51,282 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:51,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:51,288 INFO L85 PathProgramCache]: Analyzing trace with hash -327482853, now seen corresponding path program 1 times [2022-11-18 19:33:51,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:51,300 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503380424] [2022-11-18 19:33:51,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:51,300 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:51,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:52,035 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 19:33:52,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-18 19:33:52,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503380424] [2022-11-18 19:33:52,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503380424] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:52,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:52,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:33:52,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287076696] [2022-11-18 19:33:52,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:52,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:33:52,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-18 19:33:52,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:33:52,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:33:52,090 INFO L87 Difference]: Start difference. First operand has 35 states, 33 states have (on average 1.606060606060606) internal successors, (53), 34 states have internal predecessors, (53), 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 2.25) internal successors, (9), 4 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 19:33:52,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:52,223 INFO L93 Difference]: Finished difference Result 97 states and 157 transitions. [2022-11-18 19:33:52,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:33:52,226 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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) Word has length 9 [2022-11-18 19:33:52,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:52,237 INFO L225 Difference]: With dead ends: 97 [2022-11-18 19:33:52,237 INFO L226 Difference]: Without dead ends: 64 [2022-11-18 19:33:52,240 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 19:33:52,245 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 117 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 113 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 19:33:52,247 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 113 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-18 19:33:52,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-11-18 19:33:52,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 33. [2022-11-18 19:33:52,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 32 states have (on average 1.53125) internal successors, (49), 32 states have internal predecessors, (49), 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 19:33:52,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 49 transitions. [2022-11-18 19:33:52,305 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 49 transitions. Word has length 9 [2022-11-18 19:33:52,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:52,306 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 49 transitions. [2022-11-18 19:33:52,306 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 4 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 19:33:52,307 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 49 transitions. [2022-11-18 19:33:52,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-18 19:33:52,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:52,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:52,308 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-18 19:33:52,309 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:52,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:52,309 INFO L85 PathProgramCache]: Analyzing trace with hash -1560249297, now seen corresponding path program 1 times [2022-11-18 19:33:52,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-18 19:33:52,310 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [346196139] [2022-11-18 19:33:52,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:52,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-18 19:33:52,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:33:52,439 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-18 19:33:52,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-18 19:33:52,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-18 19:33:52,547 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-18 19:33:52,549 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-18 19:33:52,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-18 19:33:52,555 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-18 19:33:52,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-18 19:33:52,586 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-18 19:33:52,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 07:33:52 BoogieIcfgContainer [2022-11-18 19:33:52,596 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-18 19:33:52,596 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-18 19:33:52,597 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-18 19:33:52,597 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-18 19:33:52,597 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:51" (3/4) ... [2022-11-18 19:33:52,600 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-18 19:33:52,601 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-18 19:33:52,605 INFO L158 Benchmark]: Toolchain (without parser) took 2771.49ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 52.1MB in the end (delta: 44.7MB). Peak memory consumption was 44.4MB. Max. memory is 16.1GB. [2022-11-18 19:33:52,606 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 44.0MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:52,606 INFO L158 Benchmark]: CACSL2BoogieTranslator took 380.62ms. Allocated memory is still 125.8MB. Free memory was 96.5MB in the beginning and 96.7MB in the end (delta: -170.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-18 19:33:52,607 INFO L158 Benchmark]: Boogie Procedure Inliner took 107.69ms. Allocated memory is still 125.8MB. Free memory was 96.7MB in the beginning and 93.0MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:33:52,607 INFO L158 Benchmark]: Boogie Preprocessor took 56.16ms. Allocated memory is still 125.8MB. Free memory was 93.0MB in the beginning and 90.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:52,608 INFO L158 Benchmark]: RCFGBuilder took 781.49ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 91.7MB in the end (delta: -850.2kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. [2022-11-18 19:33:52,611 INFO L158 Benchmark]: TraceAbstraction took 1434.62ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 52.9MB in the end (delta: 37.9MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. [2022-11-18 19:33:52,611 INFO L158 Benchmark]: Witness Printer took 4.37ms. Allocated memory is still 125.8MB. Free memory was 52.9MB in the beginning and 52.1MB in the end (delta: 771.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:33:52,614 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 86.0MB. Free memory was 44.0MB in the beginning and 44.0MB in the end (delta: 44.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 380.62ms. Allocated memory is still 125.8MB. Free memory was 96.5MB in the beginning and 96.7MB in the end (delta: -170.5kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 107.69ms. Allocated memory is still 125.8MB. Free memory was 96.7MB in the beginning and 93.0MB in the end (delta: 3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.16ms. Allocated memory is still 125.8MB. Free memory was 93.0MB in the beginning and 90.8MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 781.49ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 91.7MB in the end (delta: -850.2kB). Peak memory consumption was 33.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1434.62ms. Allocated memory is still 125.8MB. Free memory was 90.8MB in the beginning and 52.9MB in the end (delta: 37.9MB). Peak memory consumption was 37.6MB. Max. memory is 16.1GB. * Witness Printer took 4.37ms. Allocated memory is still 125.8MB. Free memory was 52.9MB in the beginning and 52.1MB in the end (delta: 771.3kB). 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 106, overapproximation of bitwiseOr at line 80, overapproximation of bitwiseAnd at line 112. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 8); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (8 - 1); [L31] const SORT_1 var_6 = 0; [L32] const SORT_1 var_16 = 1; [L33] const SORT_3 var_33 = 0; [L34] const SORT_3 var_36 = 27; [L35] const SORT_3 var_44 = 85; [L36] const SORT_3 var_47 = 67; [L37] const SORT_3 var_50 = 78; [L39] SORT_1 input_2; [L40] SORT_3 input_4; [L41] SORT_1 input_5; [L42] SORT_3 input_39; [L44] SORT_1 state_7 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L45] SORT_1 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L46] SORT_1 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L47] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L48] SORT_3 state_34 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L49] SORT_3 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L51] SORT_1 init_8_arg_1 = var_6; [L52] state_7 = init_8_arg_1 [L53] SORT_1 init_10_arg_1 = var_6; [L54] state_9 = init_10_arg_1 [L55] SORT_1 init_13_arg_1 = var_6; [L56] state_12 = init_13_arg_1 [L57] SORT_1 init_18_arg_1 = var_16; [L58] state_17 = init_18_arg_1 [L59] SORT_3 init_35_arg_1 = var_33; [L60] state_34 = init_35_arg_1 [L61] SORT_3 init_43_arg_1 = var_33; [L62] state_42 = init_43_arg_1 VAL [init_10_arg_1=0, init_13_arg_1=0, init_18_arg_1=1, init_35_arg_1=0, init_43_arg_1=0, init_8_arg_1=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, state_12=0, state_17=1, state_34=0, state_42=0, state_7=0, state_9=0, var_16=1, var_33=0, var_36=27, var_44=85, var_47=67, var_50=78, var_6=0] [L65] input_2 = __VERIFIER_nondet_uchar() [L66] input_4 = __VERIFIER_nondet_uchar() [L67] input_5 = __VERIFIER_nondet_uchar() [L68] input_5 = input_5 & mask_SORT_1 VAL [init_10_arg_1=0, init_13_arg_1=0, init_18_arg_1=1, init_35_arg_1=0, init_43_arg_1=0, init_8_arg_1=0, input_2=5, input_4=6, input_5=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, state_12=0, state_17=1, state_34=0, state_42=0, state_7=0, state_9=0, var_16=1, var_33=0, var_36=27, var_44=85, var_47=67, var_50=78, var_6=0] [L69] input_39 = __VERIFIER_nondet_uchar() [L72] SORT_1 var_11_arg_0 = state_7; [L73] SORT_1 var_11_arg_1 = state_9; [L74] SORT_1 var_11 = var_11_arg_0 & var_11_arg_1; [L75] SORT_1 var_14_arg_0 = state_7; [L76] SORT_1 var_14_arg_1 = state_12; [L77] SORT_1 var_14 = var_14_arg_0 & var_14_arg_1; [L78] SORT_1 var_15_arg_0 = var_11; [L79] SORT_1 var_15_arg_1 = var_14; [L80] SORT_1 var_15 = var_15_arg_0 | var_15_arg_1; [L81] SORT_1 var_19_arg_0 = state_7; [L82] SORT_1 var_19_arg_1 = state_17; [L83] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L84] SORT_1 var_20_arg_0 = var_15; [L85] SORT_1 var_20_arg_1 = var_19; [L86] SORT_1 var_20 = var_20_arg_0 | var_20_arg_1; [L87] SORT_1 var_21_arg_0 = state_9; [L88] SORT_1 var_21_arg_1 = state_12; [L89] SORT_1 var_21 = var_21_arg_0 & var_21_arg_1; [L90] SORT_1 var_22_arg_0 = var_20; [L91] SORT_1 var_22_arg_1 = var_21; [L92] SORT_1 var_22 = var_22_arg_0 | var_22_arg_1; [L93] SORT_1 var_23_arg_0 = state_9; [L94] SORT_1 var_23_arg_1 = state_17; [L95] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L96] SORT_1 var_24_arg_0 = var_22; [L97] SORT_1 var_24_arg_1 = var_23; [L98] SORT_1 var_24 = var_24_arg_0 | var_24_arg_1; [L99] SORT_1 var_25_arg_0 = state_12; [L100] SORT_1 var_25_arg_1 = state_17; [L101] SORT_1 var_25 = var_25_arg_0 & var_25_arg_1; [L102] SORT_1 var_26_arg_0 = var_24; [L103] SORT_1 var_26_arg_1 = var_25; [L104] SORT_1 var_26 = var_26_arg_0 | var_26_arg_1; [L105] SORT_1 var_27_arg_0 = var_26; [L106] SORT_1 var_27 = ~var_27_arg_0; [L107] SORT_1 var_30_arg_0 = var_27; [L108] SORT_1 var_30 = ~var_30_arg_0; [L109] SORT_1 var_31_arg_0 = var_16; [L110] SORT_1 var_31_arg_1 = var_30; [L111] SORT_1 var_31 = var_31_arg_0 & var_31_arg_1; VAL [init_10_arg_1=0, init_13_arg_1=0, init_18_arg_1=1, init_35_arg_1=0, init_43_arg_1=0, init_8_arg_1=0, input_2=5, input_39=4, input_4=6, input_5=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, state_12=0, state_17=1, state_34=0, state_42=0, state_7=0, state_9=0, var_11=0, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_14_arg_1=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=0, var_24_arg_0=0, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_25_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=7, var_27_arg_0=0, var_30=2, var_30_arg_0=7, var_31=3, var_31_arg_0=1, var_31_arg_1=2, var_33=0, var_36=27, var_44=85, var_47=67, var_50=78, var_6=0] [L112] var_31 = var_31 & mask_SORT_1 VAL [init_10_arg_1=0, init_13_arg_1=0, init_18_arg_1=1, init_35_arg_1=0, init_43_arg_1=0, init_8_arg_1=0, input_2=5, input_39=4, input_4=6, input_5=0, mask_SORT_1=1, mask_SORT_3=255, msb_SORT_1=1, msb_SORT_3=128, state_12=0, state_17=1, state_34=0, state_42=0, state_7=0, state_9=0, var_11=0, var_11_arg_0=0, var_11_arg_1=0, var_14=0, var_14_arg_0=0, var_14_arg_1=0, var_15=0, var_15_arg_0=0, var_15_arg_1=0, var_16=1, var_19=0, var_19_arg_0=0, var_19_arg_1=1, var_20=0, var_20_arg_0=0, var_20_arg_1=0, var_21=0, var_21_arg_0=0, var_21_arg_1=0, var_22=0, var_22_arg_0=0, var_22_arg_1=0, var_23=0, var_23_arg_0=0, var_23_arg_1=1, var_24=0, var_24_arg_0=0, var_24_arg_1=0, var_25=0, var_25_arg_0=0, var_25_arg_1=1, var_26=0, var_26_arg_0=0, var_26_arg_1=0, var_27=7, var_27_arg_0=0, var_30=2, var_30_arg_0=7, var_31=1, var_31_arg_0=1, var_31_arg_1=2, var_33=0, var_36=27, var_44=85, var_47=67, var_50=78, var_6=0] [L113] SORT_1 bad_32_arg_0 = var_31; [L114] CALL __VERIFIER_assert(!(bad_32_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, 35 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.3s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 117 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 117 mSDsluCounter, 113 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 58 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 55 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=35occurred 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, 31 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 13 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 19:33:52,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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_3f376ca7-b867-49a9-8d71-14ae7664708e/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 f6d5806dc2a069b52e5e35ee04f1ef92bf49979b38b271db0ee312abca8de37e --- 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 19:33:54,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-18 19:33:54,950 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-18 19:33:54,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-18 19:33:54,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-18 19:33:54,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-18 19:33:54,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-18 19:33:55,002 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-18 19:33:55,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-18 19:33:55,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-18 19:33:55,012 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-18 19:33:55,015 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-18 19:33:55,016 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-18 19:33:55,018 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-18 19:33:55,020 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-18 19:33:55,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-18 19:33:55,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-18 19:33:55,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-18 19:33:55,031 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-18 19:33:55,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-18 19:33:55,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-18 19:33:55,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-18 19:33:55,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-18 19:33:55,040 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-18 19:33:55,044 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-18 19:33:55,049 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-18 19:33:55,049 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-18 19:33:55,050 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-18 19:33:55,052 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-18 19:33:55,053 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-18 19:33:55,053 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-18 19:33:55,054 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-18 19:33:55,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-18 19:33:55,057 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-18 19:33:55,058 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-18 19:33:55,059 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-18 19:33:55,059 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-18 19:33:55,060 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-18 19:33:55,060 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-18 19:33:55,062 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-18 19:33:55,063 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-18 19:33:55,068 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-18 19:33:55,105 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-18 19:33:55,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-18 19:33:55,106 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-18 19:33:55,106 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-18 19:33:55,107 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-18 19:33:55,107 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-18 19:33:55,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-18 19:33:55,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-18 19:33:55,108 INFO L138 SettingsManager]: * Use SBE=true [2022-11-18 19:33:55,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-18 19:33:55,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-18 19:33:55,109 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-18 19:33:55,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-18 19:33:55,112 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-18 19:33:55,112 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-18 19:33:55,112 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-18 19:33:55,112 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-18 19:33:55,113 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-18 19:33:55,113 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-18 19:33:55,113 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-18 19:33:55,113 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-18 19:33:55,114 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-18 19:33:55,114 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-18 19:33:55,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:33:55,114 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-18 19:33:55,114 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-18 19:33:55,115 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-18 19:33:55,116 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-18 19:33:55,116 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-18 19:33:55,116 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-18 19:33:55,117 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-18 19:33:55,117 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-18 19:33:55,117 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-18 19:33:55,118 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_3f376ca7-b867-49a9-8d71-14ae7664708e/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f6d5806dc2a069b52e5e35ee04f1ef92bf49979b38b271db0ee312abca8de37e [2022-11-18 19:33:55,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-18 19:33:55,565 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-18 19:33:55,567 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-18 19:33:55,569 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-18 19:33:55,571 INFO L275 PluginConnector]: CDTParser initialized [2022-11-18 19:33:55,573 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2022-11-18 19:33:55,659 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/8436151d6/7a6a6db4229549ad9c3b7d87e0e75c0f/FLAGdfb932af0 [2022-11-18 19:33:56,110 INFO L306 CDTParser]: Found 1 translation units. [2022-11-18 19:33:56,111 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c [2022-11-18 19:33:56,119 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/8436151d6/7a6a6db4229549ad9c3b7d87e0e75c0f/FLAGdfb932af0 [2022-11-18 19:33:56,502 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/data/8436151d6/7a6a6db4229549ad9c3b7d87e0e75c0f [2022-11-18 19:33:56,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-18 19:33:56,505 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-18 19:33:56,506 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-18 19:33:56,507 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-18 19:33:56,512 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-18 19:33:56,513 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:56,514 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3631592 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56, skipping insertion in model container [2022-11-18 19:33:56,515 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:56,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-18 19:33:56,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-18 19:33:56,690 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_3f376ca7-b867-49a9-8d71-14ae7664708e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1107,1120] [2022-11-18 19:33:56,834 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:33:56,841 INFO L203 MainTranslator]: Completed pre-run [2022-11-18 19:33:56,860 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_3f376ca7-b867-49a9-8d71-14ae7664708e/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_QF_BV_vlunc.c[1107,1120] [2022-11-18 19:33:56,949 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-18 19:33:56,961 INFO L208 MainTranslator]: Completed translation [2022-11-18 19:33:56,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56 WrapperNode [2022-11-18 19:33:56,961 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-18 19:33:56,962 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-18 19:33:56,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-18 19:33:56,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-18 19:33:56,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:56,980 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,022 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 261 [2022-11-18 19:33:57,026 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-18 19:33:57,027 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-18 19:33:57,027 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-18 19:33:57,028 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-18 19:33:57,036 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,050 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,083 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,101 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-18 19:33:57,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-18 19:33:57,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-18 19:33:57,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-18 19:33:57,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (1/1) ... [2022-11-18 19:33:57,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-18 19:33:57,133 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/z3 [2022-11-18 19:33:57,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-18 19:33:57,174 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-18 19:33:57,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-18 19:33:57,197 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-18 19:33:57,381 INFO L235 CfgBuilder]: Building ICFG [2022-11-18 19:33:57,383 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-18 19:33:57,778 INFO L276 CfgBuilder]: Performing block encoding [2022-11-18 19:33:57,787 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-18 19:33:57,787 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-18 19:33:57,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:57 BoogieIcfgContainer [2022-11-18 19:33:57,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-18 19:33:57,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-18 19:33:57,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-18 19:33:57,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-18 19:33:57,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:33:56" (1/3) ... [2022-11-18 19:33:57,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de36b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:57, skipping insertion in model container [2022-11-18 19:33:57,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:33:56" (2/3) ... [2022-11-18 19:33:57,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7de36b31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:33:57, skipping insertion in model container [2022-11-18 19:33:57,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:33:57" (3/3) ... [2022-11-18 19:33:57,801 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_QF_BV_vlunc.c [2022-11-18 19:33:57,822 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-18 19:33:57,823 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-18 19:33:57,883 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-18 19:33:57,890 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;@15bdf35b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-18 19:33:57,890 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-18 19:33:57,895 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 19:33:57,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-18 19:33:57,901 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:57,901 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-18 19:33:57,902 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:57,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:57,907 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-18 19:33:57,920 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:57,920 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1241390276] [2022-11-18 19:33:57,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:57,921 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 19:33:57,922 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:57,929 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:33:57,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:33:58,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:58,068 WARN L261 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 45 conjunts are in the unsatisfiable core [2022-11-18 19:33:58,107 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:58,408 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 19:33:58,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-18 19:33:58,409 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:33:58,409 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1241390276] [2022-11-18 19:33:58,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1241390276] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-18 19:33:58,410 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-18 19:33:58,410 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-18 19:33:58,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255267668] [2022-11-18 19:33:58,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-18 19:33:58,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-18 19:33:58,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:33:58,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-18 19:33:58,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-18 19:33:58,445 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 19:33:58,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:33:58,528 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-18 19:33:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-18 19:33:58,533 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 19:33:58,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:33:58,548 INFO L225 Difference]: With dead ends: 20 [2022-11-18 19:33:58,549 INFO L226 Difference]: Without dead ends: 11 [2022-11-18 19:33:58,552 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 19:33:58,558 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 19:33:58,560 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 19:33:58,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-18 19:33:58,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-18 19:33:58,591 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 19:33:58,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-18 19:33:58,594 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-18 19:33:58,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:33:58,594 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-18 19:33:58,594 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 19:33:58,595 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-18 19:33:58,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-18 19:33:58,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:33:58,595 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-18 19:33:58,616 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-18 19:33:58,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:33:58,806 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:33:58,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:33:58,806 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-18 19:33:58,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:33:58,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1722432139] [2022-11-18 19:33:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-18 19:33:58,808 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 19:33:58,808 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:33:58,809 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:33:58,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:33:59,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-18 19:33:59,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 80 conjunts are in the unsatisfiable core [2022-11-18 19:33:59,061 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:33:59,551 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 19:33:59,552 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:34:08,950 WARN L233 SmtUtils]: Spent 6.50s on a formula simplification that was a NOOP. DAG size: 212 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:49,851 WARN L233 SmtUtils]: Spent 34.57s on a formula simplification. DAG size of input: 217 DAG size of output: 206 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:34:49,872 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 19:34:49,872 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:34:49,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1722432139] [2022-11-18 19:34:49,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1722432139] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:34:49,873 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:34:49,874 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-18 19:34:49,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182328059] [2022-11-18 19:34:49,874 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:34:49,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-18 19:34:49,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:34:49,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-18 19:34:49,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=58, Unknown=4, NotChecked=0, Total=90 [2022-11-18 19:34:49,877 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 19:34:49,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:34:49,930 INFO L93 Difference]: Finished difference Result 14 states and 14 transitions. [2022-11-18 19:34:49,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-18 19:34:49,931 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 19:34:49,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:34:49,931 INFO L225 Difference]: With dead ends: 14 [2022-11-18 19:34:49,932 INFO L226 Difference]: Without dead ends: 12 [2022-11-18 19:34:49,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 49.5s TimeCoverageRelationStatistics Valid=38, Invalid=68, Unknown=4, NotChecked=0, Total=110 [2022-11-18 19:34:49,934 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 16 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 5 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:34:49,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 16 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 5 Unchecked, 0.0s Time] [2022-11-18 19:34:49,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-18 19:34:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-18 19:34:49,939 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 19:34:49,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-18 19:34:49,940 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-18 19:34:49,940 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:34:49,941 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-18 19:34:49,941 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 1.4) internal successors, (14), 10 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 19:34:49,941 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-18 19:34:49,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-18 19:34:49,942 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:34:49,942 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-18 19:34:49,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:34:50,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:34:50,156 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:34:50,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:34:50,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-18 19:34:50,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:34:50,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [560316112] [2022-11-18 19:34:50,158 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-18 19:34:50,158 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 19:34:50,158 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:34:50,162 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:34:50,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:34:50,489 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-18 19:34:50,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:34:50,520 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 118 conjunts are in the unsatisfiable core [2022-11-18 19:34:50,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:34:51,481 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 19:34:51,481 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-18 19:35:23,057 WARN L233 SmtUtils]: Spent 28.44s on a formula simplification that was a NOOP. DAG size: 329 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:36:32,299 WARN L233 SmtUtils]: Spent 1.04m on a formula simplification. DAG size of input: 334 DAG size of output: 299 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:38:56,235 WARN L233 SmtUtils]: Spent 2.26m on a formula simplification. DAG size of input: 594 DAG size of output: 505 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:43:33,504 WARN L233 SmtUtils]: Spent 4.44m on a formula simplification. DAG size of input: 510 DAG size of output: 473 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-18 19:43:33,537 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 19:43:33,537 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:43:33,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [560316112] [2022-11-18 19:43:33,538 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [560316112] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-18 19:43:33,538 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-18 19:43:33,538 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-18 19:43:33,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749978161] [2022-11-18 19:43:33,539 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-18 19:43:33,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-18 19:43:33,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-18 19:43:33,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-18 19:43:33,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=118, Unknown=12, NotChecked=0, Total=182 [2022-11-18 19:43:33,543 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 19:43:33,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-18 19:43:33,747 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-11-18 19:43:33,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-18 19:43:33,748 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 19:43:33,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-18 19:43:33,750 INFO L225 Difference]: With dead ends: 17 [2022-11-18 19:43:33,750 INFO L226 Difference]: Without dead ends: 15 [2022-11-18 19:43:33,751 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 518.8s TimeCoverageRelationStatistics Valid=85, Invalid=175, Unknown=12, NotChecked=0, Total=272 [2022-11-18 19:43:33,752 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 15 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-18 19:43:33,753 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 31 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 15 Unchecked, 0.0s Time] [2022-11-18 19:43:33,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-11-18 19:43:33,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-11-18 19:43:33,757 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 19:43:33,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-18 19:43:33,758 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-18 19:43:33,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-18 19:43:33,759 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-18 19:43:33,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 14 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 19:43:33,759 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-18 19:43:33,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-18 19:43:33,760 INFO L187 NwaCegarLoop]: Found error trace [2022-11-18 19:43:33,760 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-18 19:43:33,777 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:43:33,973 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:43:33,973 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-18 19:43:33,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-18 19:43:33,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-18 19:43:33,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-18 19:43:33,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1537847992] [2022-11-18 19:43:33,976 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-18 19:43:33,976 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 19:43:33,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/bin/uautomizer-TMbwUNV5ro/mathsat [2022-11-18 19:43:33,978 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:43:33,988 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:43:34,234 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-18 19:43:34,234 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-18 19:43:34,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 473 conjuncts, 216 conjunts are in the unsatisfiable core [2022-11-18 19:43:34,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-18 19:43:38,312 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-18 19:43:38,312 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1537847992] [2022-11-18 19:43:38,313 WARN L319 FreeRefinementEngine]: Global settings require throwing the following exception [2022-11-18 19:43:38,330 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:43:38,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 19:43:38,518 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 19:43:38,523 INFO L158 Benchmark]: Toolchain (without parser) took 582017.20ms. Allocated memory was 67.1MB in the beginning and 182.5MB in the end (delta: 115.3MB). Free memory was 47.5MB in the beginning and 151.7MB in the end (delta: -104.1MB). Peak memory consumption was 85.8MB. Max. memory is 16.1GB. [2022-11-18 19:43:38,523 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-18 19:43:38,524 INFO L158 Benchmark]: CACSL2BoogieTranslator took 455.33ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 47.4MB in the end (delta: -137.8kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-18 19:43:38,524 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.70ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 44.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-18 19:43:38,525 INFO L158 Benchmark]: Boogie Preprocessor took 74.87ms. Allocated memory is still 67.1MB. Free memory was 44.4MB in the beginning and 42.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-18 19:43:38,525 INFO L158 Benchmark]: RCFGBuilder took 687.85ms. Allocated memory is still 67.1MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. [2022-11-18 19:43:38,526 INFO L158 Benchmark]: TraceAbstraction took 580728.22ms. Allocated memory was 67.1MB in the beginning and 182.5MB in the end (delta: 115.3MB). Free memory was 39.8MB in the beginning and 151.7MB in the end (delta: -111.9MB). Peak memory consumption was 77.5MB. Max. memory is 16.1GB. [2022-11-18 19:43:38,529 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 67.1MB. Free memory was 48.3MB in the beginning and 48.3MB in the end (delta: 48.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 455.33ms. Allocated memory is still 67.1MB. Free memory was 47.3MB in the beginning and 47.4MB in the end (delta: -137.8kB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.70ms. Allocated memory is still 67.1MB. Free memory was 47.4MB in the beginning and 44.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.87ms. Allocated memory is still 67.1MB. Free memory was 44.4MB in the beginning and 42.5MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 687.85ms. Allocated memory is still 67.1MB. Free memory was 42.3MB in the beginning and 40.4MB in the end (delta: 1.8MB). Peak memory consumption was 21.4MB. Max. memory is 16.1GB. * TraceAbstraction took 580728.22ms. Allocated memory was 67.1MB in the beginning and 182.5MB in the end (delta: 115.3MB). Free memory was 39.8MB in the beginning and 151.7MB in the end (delta: -111.9MB). Peak memory consumption was 77.5MB. 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 19:43:38,556 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f376ca7-b867-49a9-8d71-14ae7664708e/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 Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: AssertionError: Maybe an infinite loop