./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f949838c97095a42d5e6540bf73aedcc362763afd8b26091976cc471e7bc2aab --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:53:31,794 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:53:31,796 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:53:31,814 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:53:31,815 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:53:31,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:53:31,816 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:53:31,817 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:53:31,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:53:31,818 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:53:31,819 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:53:31,820 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:53:31,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:53:31,820 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:53:31,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:53:31,822 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:53:31,822 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:53:31,823 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:53:31,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:53:31,825 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:53:31,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:53:31,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:53:31,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:53:31,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:53:31,832 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:53:31,832 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:53:31,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:53:31,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:53:31,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:53:31,834 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:53:31,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:53:31,835 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:53:31,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:53:31,837 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:53:31,837 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:53:31,838 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:53:31,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:53:31,838 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:53:31,838 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:53:31,839 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:53:31,840 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:53:31,840 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 11:53:31,853 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:53:31,853 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:53:31,853 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:53:31,853 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:53:31,854 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:53:31,854 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:53:31,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:53:31,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:53:31,854 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:53:31,854 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:53:31,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:53:31,880 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:53:31,880 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:53:31,880 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:53:31,880 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:53:31,881 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:53:31,881 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:53:31,881 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:53:31,881 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:53:31,881 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:53:31,882 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:53:31,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:31,882 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:53:31,882 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:53:31,882 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:53:31,883 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:53:31,883 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:53:31,883 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:53:31,883 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:53:31,883 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:53:31,884 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:53:31,884 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:53:31,884 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f949838c97095a42d5e6540bf73aedcc362763afd8b26091976cc471e7bc2aab [2022-12-13 11:53:32,085 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:53:32,103 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:53:32,105 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:53:32,106 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:53:32,106 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:53:32,107 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2022-12-13 11:53:34,608 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:53:34,796 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:53:34,797 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2022-12-13 11:53:34,805 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data/6df6fac69/afd86b7e4d7b45c6a026e5828c83bb29/FLAGa18585853 [2022-12-13 11:53:35,184 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data/6df6fac69/afd86b7e4d7b45c6a026e5828c83bb29 [2022-12-13 11:53:35,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:53:35,187 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:53:35,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:35,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:53:35,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:53:35,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e1fa37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35, skipping insertion in model container [2022-12-13 11:53:35,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:53:35,224 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:53:35,338 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c[1107,1120] [2022-12-13 11:53:35,418 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:35,423 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:53:35,434 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c[1107,1120] [2022-12-13 11:53:35,482 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:35,491 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:53:35,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35 WrapperNode [2022-12-13 11:53:35,492 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:35,493 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:35,493 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:53:35,493 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:53:35,498 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,508 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,541 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 419 [2022-12-13 11:53:35,541 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:35,542 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:53:35,542 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:53:35,542 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:53:35,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,553 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,553 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,562 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,565 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,569 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:53:35,574 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:53:35,574 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:53:35,575 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:53:35,576 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (1/1) ... [2022-12-13 11:53:35,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:35,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:53:35,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:53:35,605 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:53:35,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:53:35,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:53:35,751 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:53:35,753 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:53:36,412 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:53:36,418 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:53:36,419 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:53:36,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:36 BoogieIcfgContainer [2022-12-13 11:53:36,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:53:36,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:53:36,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:53:36,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:53:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:53:35" (1/3) ... [2022-12-13 11:53:36,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626ced45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:53:36, skipping insertion in model container [2022-12-13 11:53:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:35" (2/3) ... [2022-12-13 11:53:36,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@626ced45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:53:36, skipping insertion in model container [2022-12-13 11:53:36,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:36" (3/3) ... [2022-12-13 11:53:36,427 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2022-12-13 11:53:36,443 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:53:36,443 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:53:36,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:53:36,480 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;@72bbb3fc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:53:36,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:53:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:36,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:53:36,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:36,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:53:36,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:53:36,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:36,492 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:53:36,498 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:53:36,498 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733852197] [2022-12-13 11:53:36,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:36,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:53:36,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:53:36,650 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:53:36,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:53:36,715 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:53:36,716 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:53:36,717 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:53:36,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:53:36,722 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:53:36,725 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:53:36,738 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 11:53:36,743 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:53:36 BoogieIcfgContainer [2022-12-13 11:53:36,743 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:53:36,744 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:53:36,744 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:53:36,744 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:53:36,744 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:36" (3/4) ... [2022-12-13 11:53:36,746 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:53:36,746 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:53:36,747 INFO L158 Benchmark]: Toolchain (without parser) took 1559.79ms. Allocated memory was 148.9MB in the beginning and 287.3MB in the end (delta: 138.4MB). Free memory was 114.0MB in the beginning and 227.5MB in the end (delta: -113.5MB). Peak memory consumption was 26.5MB. Max. memory is 16.1GB. [2022-12-13 11:53:36,747 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 148.9MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:53:36,748 INFO L158 Benchmark]: CACSL2BoogieTranslator took 303.63ms. Allocated memory is still 148.9MB. Free memory was 113.6MB in the beginning and 95.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 11:53:36,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.58ms. Allocated memory is still 148.9MB. Free memory was 95.3MB in the beginning and 91.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:53:36,748 INFO L158 Benchmark]: Boogie Preprocessor took 31.89ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 88.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:53:36,749 INFO L158 Benchmark]: RCFGBuilder took 846.10ms. Allocated memory was 148.9MB in the beginning and 287.3MB in the end (delta: 138.4MB). Free memory was 88.5MB in the beginning and 134.1MB in the end (delta: -45.5MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. [2022-12-13 11:53:36,749 INFO L158 Benchmark]: TraceAbstraction took 321.51ms. Allocated memory is still 287.3MB. Free memory was 133.0MB in the beginning and 228.5MB in the end (delta: -95.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:53:36,749 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 287.3MB. Free memory is still 227.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:53:36,751 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 148.9MB. Free memory is still 119.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 303.63ms. Allocated memory is still 148.9MB. Free memory was 113.6MB in the beginning and 95.3MB in the end (delta: 18.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.58ms. Allocated memory is still 148.9MB. Free memory was 95.3MB in the beginning and 91.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 31.89ms. Allocated memory is still 148.9MB. Free memory was 91.1MB in the beginning and 88.5MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 846.10ms. Allocated memory was 148.9MB in the beginning and 287.3MB in the end (delta: 138.4MB). Free memory was 88.5MB in the beginning and 134.1MB in the end (delta: -45.5MB). Peak memory consumption was 104.2MB. Max. memory is 16.1GB. * TraceAbstraction took 321.51ms. Allocated memory is still 287.3MB. Free memory was 133.0MB in the beginning and 228.5MB in the end (delta: -95.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 287.3MB. Free memory is still 227.5MB. 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 164, overapproximation of bitwiseOr at line 162, overapproximation of bitwiseAnd at line 149. 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_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 32); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (32 - 1); [L34] const SORT_31 mask_SORT_31 = (SORT_31)-1 >> (sizeof(SORT_31) * 8 - 4); [L35] const SORT_31 msb_SORT_31 = (SORT_31)1 << (4 - 1); [L37] const SORT_67 mask_SORT_67 = (SORT_67)-1 >> (sizeof(SORT_67) * 8 - 10); [L38] const SORT_67 msb_SORT_67 = (SORT_67)1 << (10 - 1); [L40] const SORT_1 var_7 = 0; [L41] const SORT_10 var_12 = 0; [L42] const SORT_1 var_21 = 1; [L43] const SORT_67 var_68 = 0; [L44] const SORT_10 var_119 = 104; [L45] const SORT_10 var_136 = 1; [L47] SORT_1 input_2; [L48] SORT_3 input_4; [L49] SORT_1 input_5; [L50] SORT_1 input_6; [L51] SORT_1 input_29; [L52] SORT_31 input_32; [L53] SORT_31 input_34; [L54] SORT_1 input_36; [L55] SORT_1 input_38; [L56] SORT_1 input_44; [L57] SORT_1 input_46; [L58] SORT_1 input_48; [L59] SORT_3 input_52; [L60] SORT_1 input_55; [L61] SORT_1 input_63; [L62] SORT_1 input_73; [L63] SORT_1 input_79; [L64] SORT_1 input_81; [L65] SORT_1 input_95; [L66] SORT_1 input_101; [L67] SORT_1 input_107; [L68] SORT_1 input_113; [L69] SORT_1 input_114; [L70] SORT_1 input_115; [L71] SORT_67 input_134; [L72] SORT_1 input_143; [L73] SORT_1 input_144; [L74] SORT_1 input_145; [L76] SORT_1 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_40 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_42 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_59 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_61 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_65 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L87] SORT_67 state_69 = __VERIFIER_nondet_ushort() & mask_SORT_67; [L88] SORT_1 state_71 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_1 init_9_arg_1 = var_7; [L91] state_8 = init_9_arg_1 [L92] SORT_1 init_15_arg_1 = var_7; [L93] state_14 = init_15_arg_1 [L94] SORT_1 init_26_arg_1 = var_7; [L95] state_25 = init_26_arg_1 [L96] SORT_1 init_28_arg_1 = var_7; [L97] state_27 = init_28_arg_1 [L98] SORT_1 init_41_arg_1 = var_7; [L99] state_40 = init_41_arg_1 [L100] SORT_1 init_43_arg_1 = var_7; [L101] state_42 = init_43_arg_1 [L102] SORT_1 init_51_arg_1 = var_21; [L103] state_50 = init_51_arg_1 [L104] SORT_1 init_58_arg_1 = var_7; [L105] state_57 = init_58_arg_1 [L106] SORT_1 init_60_arg_1 = var_7; [L107] state_59 = init_60_arg_1 [L108] SORT_1 init_62_arg_1 = var_7; [L109] state_61 = init_62_arg_1 [L110] SORT_1 init_66_arg_1 = var_7; [L111] state_65 = init_66_arg_1 [L112] SORT_67 init_70_arg_1 = var_68; [L113] state_69 = init_70_arg_1 [L114] SORT_1 init_72_arg_1 = var_7; [L115] state_71 = init_72_arg_1 VAL [init_15_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_41_arg_1=0, init_43_arg_1=0, init_51_arg_1=1, init_58_arg_1=0, init_60_arg_1=0, init_62_arg_1=0, init_66_arg_1=0, init_70_arg_1=0, init_72_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_10=4294967295, mask_SORT_3=255, mask_SORT_31=15, mask_SORT_67=1023, msb_SORT_1=1, msb_SORT_10=2147483648, msb_SORT_3=128, msb_SORT_31=8, msb_SORT_67=512, state_14=0, state_25=0, state_27=0, state_40=0, state_42=0, state_50=1, state_57=0, state_59=0, state_61=0, state_65=0, state_69=0, state_71=0, state_8=0, var_119=104, var_12=0, var_136=1, var_21=1, var_68=0, var_7=0] [L118] input_2 = __VERIFIER_nondet_uchar() [L119] input_4 = __VERIFIER_nondet_uchar() [L120] input_5 = __VERIFIER_nondet_uchar() [L121] input_6 = __VERIFIER_nondet_uchar() [L122] input_29 = __VERIFIER_nondet_uchar() [L123] input_32 = __VERIFIER_nondet_uchar() [L124] input_34 = __VERIFIER_nondet_uchar() [L125] input_36 = __VERIFIER_nondet_uchar() [L126] input_38 = __VERIFIER_nondet_uchar() [L127] input_44 = __VERIFIER_nondet_uchar() [L128] input_46 = __VERIFIER_nondet_uchar() [L129] input_48 = __VERIFIER_nondet_uchar() [L130] input_52 = __VERIFIER_nondet_uchar() [L131] input_55 = __VERIFIER_nondet_uchar() [L132] input_63 = __VERIFIER_nondet_uchar() [L133] input_73 = __VERIFIER_nondet_uchar() [L134] input_79 = __VERIFIER_nondet_uchar() [L135] input_81 = __VERIFIER_nondet_uchar() [L136] input_95 = __VERIFIER_nondet_uchar() [L137] input_101 = __VERIFIER_nondet_uchar() [L138] input_107 = __VERIFIER_nondet_uchar() [L139] input_113 = __VERIFIER_nondet_uchar() [L140] input_114 = __VERIFIER_nondet_uchar() [L141] input_115 = __VERIFIER_nondet_uchar() [L142] input_134 = __VERIFIER_nondet_ushort() [L143] input_143 = __VERIFIER_nondet_uchar() [L144] input_144 = __VERIFIER_nondet_uchar() [L145] input_145 = __VERIFIER_nondet_uchar() [L148] SORT_1 var_11_arg_0 = state_8; [L149] var_11_arg_0 = var_11_arg_0 & mask_SORT_1 [L150] SORT_10 var_11 = var_11_arg_0; [L151] SORT_10 var_13_arg_0 = var_11; [L152] SORT_10 var_13_arg_1 = var_12; [L153] SORT_1 var_13 = var_13_arg_0 == var_13_arg_1; [L154] SORT_1 var_16_arg_0 = state_14; [L155] var_16_arg_0 = var_16_arg_0 & mask_SORT_1 [L156] SORT_10 var_16 = var_16_arg_0; [L157] SORT_10 var_17_arg_0 = var_16; [L158] SORT_10 var_17_arg_1 = var_12; [L159] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L160] SORT_1 var_18_arg_0 = var_13; [L161] SORT_1 var_18_arg_1 = var_17; [L162] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L163] SORT_1 var_22_arg_0 = var_18; [L164] SORT_1 var_22 = ~var_22_arg_0; [L165] SORT_1 var_23_arg_0 = var_21; [L166] SORT_1 var_23_arg_1 = var_22; [L167] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L168] var_23 = var_23 & mask_SORT_1 [L169] SORT_1 bad_24_arg_0 = var_23; [L170] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 11:53:36,766 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f949838c97095a42d5e6540bf73aedcc362763afd8b26091976cc471e7bc2aab --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 11:53:38,577 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:53:38,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:53:38,597 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:53:38,598 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:53:38,599 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:53:38,600 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:53:38,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:53:38,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:53:38,603 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:53:38,604 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:53:38,606 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:53:38,606 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:53:38,607 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:53:38,608 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:53:38,609 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:53:38,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:53:38,610 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:53:38,612 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:53:38,614 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:53:38,615 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:53:38,616 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:53:38,617 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:53:38,618 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:53:38,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:53:38,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:53:38,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:53:38,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:53:38,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:53:38,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:53:38,624 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:53:38,625 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:53:38,626 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:53:38,627 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:53:38,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:53:38,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:53:38,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:53:38,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:53:38,633 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:53:38,633 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:53:38,634 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:53:38,635 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 11:53:38,658 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:53:38,658 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:53:38,659 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:53:38,659 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:53:38,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:53:38,660 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:53:38,660 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:53:38,660 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:53:38,661 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:53:38,661 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:53:38,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:53:38,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:53:38,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:53:38,662 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:53:38,662 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:53:38,662 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:53:38,662 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:53:38,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:53:38,663 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:53:38,663 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:53:38,663 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:53:38,663 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:53:38,663 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:53:38,664 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:38,664 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:53:38,664 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:53:38,664 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:53:38,664 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:53:38,664 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:53:38,665 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:53:38,665 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:53:38,665 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:53:38,665 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:53:38,665 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:53:38,666 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:53:38,666 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f949838c97095a42d5e6540bf73aedcc362763afd8b26091976cc471e7bc2aab [2022-12-13 11:53:38,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:53:38,906 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:53:38,908 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:53:38,909 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:53:38,909 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:53:38,910 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2022-12-13 11:53:41,481 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:53:41,640 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:53:41,640 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2022-12-13 11:53:41,647 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data/da7b466fc/ddf39da8e1fd4043be89219f713e5578/FLAGee9e91a6b [2022-12-13 11:53:41,657 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/data/da7b466fc/ddf39da8e1fd4043be89219f713e5578 [2022-12-13 11:53:41,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:53:41,669 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:53:41,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:41,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:53:41,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:53:41,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,673 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6880b9d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41, skipping insertion in model container [2022-12-13 11:53:41,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,679 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:53:41,701 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:53:41,795 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c[1107,1120] [2022-12-13 11:53:41,859 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:41,863 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:53:41,871 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c[1107,1120] [2022-12-13 11:53:41,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:53:41,920 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:53:41,920 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41 WrapperNode [2022-12-13 11:53:41,920 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:53:41,921 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:41,921 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:53:41,921 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:53:41,927 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,935 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,963 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 419 [2022-12-13 11:53:41,963 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:53:41,964 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:53:41,964 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:53:41,964 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:53:41,971 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,971 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,975 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,975 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,981 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,984 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,985 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,987 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,990 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:53:41,990 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:53:41,990 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:53:41,991 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:53:41,991 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (1/1) ... [2022-12-13 11:53:41,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:53:42,008 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:53:42,018 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:53:42,020 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:53:42,047 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:53:42,047 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:53:42,162 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:53:42,163 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:53:42,473 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:53:42,481 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:53:42,481 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:53:42,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:42 BoogieIcfgContainer [2022-12-13 11:53:42,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:53:42,486 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:53:42,486 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:53:42,489 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:53:42,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:53:41" (1/3) ... [2022-12-13 11:53:42,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1091fba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:53:42, skipping insertion in model container [2022-12-13 11:53:42,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:53:41" (2/3) ... [2022-12-13 11:53:42,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1091fba6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:53:42, skipping insertion in model container [2022-12-13 11:53:42,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:42" (3/3) ... [2022-12-13 11:53:42,492 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vcegar_QF_BV_itc99_b13_p13.c [2022-12-13 11:53:42,509 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:53:42,509 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:53:42,544 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:53:42,549 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;@46e67d15, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:53:42,549 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:53:42,553 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:42,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:53:42,557 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:42,558 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:53:42,558 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:53:42,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:42,562 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:53:42,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:53:42,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1539248633] [2022-12-13 11:53:42,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:42,572 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:42,572 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:53:42,574 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:53:42,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 11:53:42,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:42,702 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 20 conjunts are in the unsatisfiable core [2022-12-13 11:53:42,707 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:53:42,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:42,825 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:53:42,826 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:53:42,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1539248633] [2022-12-13 11:53:42,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1539248633] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:53:42,827 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:53:42,827 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:53:42,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012545973] [2022-12-13 11:53:42,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:53:42,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:53:42,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:53:42,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:53:42,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:53:42,854 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:42,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:42,919 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 11:53:42,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:53:42,921 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-12-13 11:53:42,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:42,927 INFO L225 Difference]: With dead ends: 20 [2022-12-13 11:53:42,927 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 11:53:42,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:53:42,933 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 [2022-12-13 11:53:42,934 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] [2022-12-13 11:53:42,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 11:53:42,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 11:53:42,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:42,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 11:53:42,956 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 11:53:42,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:42,957 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 11:53:42,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:42,957 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 11:53:42,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 11:53:42,957 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:42,958 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:53:42,966 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 11:53:43,158 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:43,159 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:53:43,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:43,160 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 11:53:43,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:53:43,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [365232145] [2022-12-13 11:53:43,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:53:43,162 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:43,163 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:53:43,164 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:53:43,166 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 11:53:43,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:53:43,463 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 32 conjunts are in the unsatisfiable core [2022-12-13 11:53:43,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:53:43,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:43,573 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:53:44,173 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:44,173 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:53:44,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [365232145] [2022-12-13 11:53:44,174 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [365232145] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:53:44,174 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:53:44,174 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 11:53:44,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [617737614] [2022-12-13 11:53:44,174 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:53:44,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:53:44,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:53:44,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:53:44,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:53:44,177 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:44,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:44,294 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 11:53:44,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:53:44,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-12-13 11:53:44,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:44,294 INFO L225 Difference]: With dead ends: 16 [2022-12-13 11:53:44,295 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:53:44,295 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:53:44,296 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:44,296 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 15 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:53:44,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:53:44,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 11:53:44,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:44,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 11:53:44,299 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 11:53:44,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:44,299 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 11:53:44,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:44,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 11:53:44,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:53:44,299 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:44,299 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 11:53:44,312 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 11:53:44,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:44,500 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:53:44,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:44,501 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 11:53:44,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:53:44,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [827006702] [2022-12-13 11:53:44,501 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:53:44,502 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:44,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:53:44,502 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:53:44,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-12-13 11:53:44,717 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:53:44,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:53:44,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 52 conjunts are in the unsatisfiable core [2022-12-13 11:53:44,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:53:44,919 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:44,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:53:46,672 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 11:53:46,672 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:53:46,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [827006702] [2022-12-13 11:53:46,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [827006702] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:53:46,673 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:53:46,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 11:53:46,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744931180] [2022-12-13 11:53:46,673 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:53:46,673 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:53:46,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:53:46,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:53:46,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:53:46,675 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:46,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:46,818 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-12-13 11:53:46,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:53:46,818 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-12-13 11:53:46,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:46,819 INFO L225 Difference]: With dead ends: 19 [2022-12-13 11:53:46,819 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 11:53:46,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2022-12-13 11:53:46,820 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 9 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:46,820 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 22 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 11:53:46,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 11:53:46,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 11:53:46,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:46,822 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-12-13 11:53:46,822 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-12-13 11:53:46,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:46,823 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-12-13 11:53:46,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:46,823 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-12-13 11:53:46,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 11:53:46,823 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:53:46,823 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-12-13 11:53:46,833 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2022-12-13 11:53:47,024 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:47,025 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:53:47,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:53:47,027 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-12-13 11:53:47,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:53:47,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1541590688] [2022-12-13 11:53:47,032 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 11:53:47,033 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:47,033 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:53:47,036 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 11:53:47,039 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-12-13 11:53:47,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-12-13 11:53:47,287 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:53:47,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 46 conjunts are in the unsatisfiable core [2022-12-13 11:53:47,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:53:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 11:53:47,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:53:48,675 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 11:53:48,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:53:48,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1541590688] [2022-12-13 11:53:48,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1541590688] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:53:48,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:53:48,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-12-13 11:53:48,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1897224168] [2022-12-13 11:53:48,676 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:53:48,676 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-12-13 11:53:48,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:53:48,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-12-13 11:53:48,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2022-12-13 11:53:48,678 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:48,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:53:48,754 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-12-13 11:53:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 11:53:48,755 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-12-13 11:53:48,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:53:48,755 INFO L225 Difference]: With dead ends: 15 [2022-12-13 11:53:48,755 INFO L226 Difference]: Without dead ends: 0 [2022-12-13 11:53:48,756 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2022-12-13 11:53:48,756 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 4 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 11:53:48,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 12 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 11:53:48,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-12-13 11:53:48,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-12-13 11:53:48,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:48,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-12-13 11:53:48,757 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-12-13 11:53:48,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:53:48,757 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-12-13 11:53:48,757 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 11:53:48,758 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-12-13 11:53:48,758 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-12-13 11:53:48,759 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:53:48,769 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-12-13 11:53:48,960 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 11:53:48,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-12-13 11:53:49,083 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-12-13 11:53:49,084 INFO L895 garLoopResultBuilder]: At program point L116-2(lines 116 404) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~state_8~0#1| (_ bv0 8))) (.cse2 (= |ULTIMATE.start_main_~var_12~0#1| (_ bv0 32)))) (or (and .cse0 (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv1 32)) .cse1 (= |ULTIMATE.start_main_~var_7~0#1| (_ bv0 8)) (exists ((|ULTIMATE.start_main_~var_105_arg_2~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_105_arg_2~0#1|))) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|))) |ULTIMATE.start_main_~state_40~0#1|)) .cse2) (and .cse0 .cse1 (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_40~0#1|) (= (_ bv0 8) |ULTIMATE.start_main_~state_57~0#1|) (= |ULTIMATE.start_main_~var_7~0#1| |ULTIMATE.start_main_~state_71~0#1|) (= |ULTIMATE.start_main_~state_71~0#1| |ULTIMATE.start_main_~state_57~0#1|) .cse2 (= (_ bv0 8) |ULTIMATE.start_main_~state_14~0#1|)))) [2022-12-13 11:53:49,084 INFO L899 garLoopResultBuilder]: For program point L116-3(lines 116 404) no Hoare annotation was computed. [2022-12-13 11:53:49,084 INFO L899 garLoopResultBuilder]: For program point $Ultimate##0(line -1) no Hoare annotation was computed. [2022-12-13 11:53:49,084 INFO L895 garLoopResultBuilder]: At program point main_returnLabel#1(lines 22 406) the Hoare annotation is: false [2022-12-13 11:53:49,084 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-12-13 11:53:49,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-12-13 11:53:49,084 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-12-13 11:53:49,084 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-12-13 11:53:49,085 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-12-13 11:53:49,085 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-12-13 11:53:49,087 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1] [2022-12-13 11:53:49,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:53:49,094 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_105_arg_2~0#1,QUANTIFIED] [2022-12-13 11:53:49,098 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_105_arg_2~0#1,QUANTIFIED] [2022-12-13 11:53:49,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:53:49 BoogieIcfgContainer [2022-12-13 11:53:49,099 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:53:49,099 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:53:49,099 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:53:49,099 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:53:49,099 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:53:42" (3/4) ... [2022-12-13 11:53:49,101 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:53:49,113 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-12-13 11:53:49,114 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-12-13 11:53:49,114 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 11:53:49,131 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((1bv8 == mask_SORT_1 && cond == 1bv32) && state_8 == 0bv8) && var_7 == 0bv8) && (\exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_40)) && var_12 == 0bv32) || (((((((1bv8 == mask_SORT_1 && state_8 == 0bv8) && var_7 == state_40) && 0bv8 == state_57) && var_7 == state_71) && state_71 == state_57) && var_12 == 0bv32) && 0bv8 == state_14) [2022-12-13 11:53:49,166 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:53:49,166 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:53:49,166 INFO L158 Benchmark]: Toolchain (without parser) took 7497.98ms. Allocated memory was 60.8MB in the beginning and 130.0MB in the end (delta: 69.2MB). Free memory was 42.8MB in the beginning and 99.4MB in the end (delta: -56.7MB). Peak memory consumption was 82.1MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,167 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 26.8MB in the beginning and 26.7MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:53:49,167 INFO L158 Benchmark]: CACSL2BoogieTranslator took 250.76ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 24.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,167 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.27ms. Allocated memory is still 60.8MB. Free memory was 24.0MB in the beginning and 39.7MB in the end (delta: -15.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,167 INFO L158 Benchmark]: Boogie Preprocessor took 26.21ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 37.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,168 INFO L158 Benchmark]: RCFGBuilder took 492.90ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.4MB in the beginning and 45.6MB in the end (delta: -8.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,168 INFO L158 Benchmark]: TraceAbstraction took 6612.60ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 45.0MB in the beginning and 30.9MB in the end (delta: 14.1MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,168 INFO L158 Benchmark]: Witness Printer took 66.95ms. Allocated memory is still 130.0MB. Free memory was 30.9MB in the beginning and 99.4MB in the end (delta: -68.5MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-12-13 11:53:49,170 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 48.2MB. Free memory was 26.8MB in the beginning and 26.7MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 250.76ms. Allocated memory is still 60.8MB. Free memory was 42.5MB in the beginning and 24.0MB in the end (delta: 18.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.27ms. Allocated memory is still 60.8MB. Free memory was 24.0MB in the beginning and 39.7MB in the end (delta: -15.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.21ms. Allocated memory is still 60.8MB. Free memory was 39.7MB in the beginning and 37.4MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 492.90ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 37.4MB in the beginning and 45.6MB in the end (delta: -8.3MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 6612.60ms. Allocated memory was 73.4MB in the beginning and 130.0MB in the end (delta: 56.6MB). Free memory was 45.0MB in the beginning and 30.9MB in the end (delta: 14.1MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. * Witness Printer took 66.95ms. Allocated memory is still 130.0MB. Free memory was 30.9MB in the beginning and 99.4MB in the end (delta: -68.5MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_105_arg_2~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_105_arg_2~0#1,QUANTIFIED] * 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 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 6.6s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 26 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 62 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 47 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 54 IncrementalHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 15 mSDtfsCounter, 54 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 24, 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, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 54 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 89 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 24 QuantifiedInterpolants, 2751 SizeOfPredicates, 148 NumberOfNonLiveVariables, 1719 ConjunctsInSsa, 150 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 12/48 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 116]: Loop Invariant [2022-12-13 11:53:49,176 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_105_arg_2~0#1,QUANTIFIED] [2022-12-13 11:53:49,177 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_105_arg_2~0#1,QUANTIFIED] Derived loop invariant: (((((1bv8 == mask_SORT_1 && cond == 1bv32) && state_8 == 0bv8) && var_7 == 0bv8) && (\exists ULTIMATE.start_main_~var_105_arg_2~0#1 : bv8 :: ~bvand32(~zero_extendFrom16To32(~zero_extendFrom16To32(ULTIMATE.start_main_~var_105_arg_2~0#1)[7:0]), ~zero_extendFrom16To32(mask_SORT_1))[7:0] == state_40)) && var_12 == 0bv32) || (((((((1bv8 == mask_SORT_1 && state_8 == 0bv8) && var_7 == state_40) && 0bv8 == state_57) && var_7 == state_71) && state_71 == state_57) && var_12 == 0bv32) && 0bv8 == state_14) RESULT: Ultimate proved your program to be correct! [2022-12-13 11:53:49,186 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_d5ce0ab8-3896-482d-a13e-576f551c19ca/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE