./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b --- 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 11:07:50,589 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:07:50,591 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:07:50,604 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:07:50,605 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:07:50,605 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:07:50,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:07:50,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:07:50,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:07:50,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:07:50,609 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:07:50,610 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:07:50,610 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:07:50,611 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:07:50,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:07:50,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:07:50,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:07:50,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:07:50,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:07:50,615 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:07:50,616 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:07:50,617 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:07:50,618 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:07:50,619 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:07:50,623 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:07:50,623 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:07:50,623 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:07:50,624 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:07:50,625 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:07:50,626 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:07:50,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:07:50,626 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:07:50,627 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:07:50,628 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:07:50,629 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:07:50,629 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:07:50,629 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:07:50,630 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:07:50,630 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:07:50,631 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:07:50,631 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:07:50,632 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-12-13 11:07:50,650 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:07:50,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:07:50,650 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:07:50,650 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:07:50,651 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:07:50,651 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:07:50,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:07:50,651 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:07:50,652 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:07:50,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:07:50,652 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:07:50,652 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:07:50,652 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:07:50,652 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:07:50,652 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:07:50,653 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:07:50,653 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:07:50,653 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:07:50,653 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:07:50,653 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:07:50,653 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:07:50,653 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:50,654 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:07:50,654 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:07:50,654 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:07:50,654 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:07:50,654 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:07:50,654 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:07:50,655 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:07:50,655 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:07:50,655 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:07:50,655 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:07:50,655 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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b [2022-12-13 11:07:50,810 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:07:50,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:07:50,833 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:07:50,834 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:07:50,834 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:07:50,835 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-12-13 11:07:53,336 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:07:53,536 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:07:53,536 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-12-13 11:07:53,545 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data/1e83755e2/f9683551582448ecb96e7be40fcd44b0/FLAG11254bba3 [2022-12-13 11:07:53,920 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data/1e83755e2/f9683551582448ecb96e7be40fcd44b0 [2022-12-13 11:07:53,927 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:07:53,930 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:07:53,933 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:53,934 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:07:53,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:07:53,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:53" (1/1) ... [2022-12-13 11:07:53,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7361eb3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:53, skipping insertion in model container [2022-12-13 11:07:53,949 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:07:53" (1/1) ... [2022-12-13 11:07:53,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:07:54,005 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:07:54,114 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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-12-13 11:07:54,253 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:54,257 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:07:54,265 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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-12-13 11:07:54,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:07:54,357 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:07:54,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54 WrapperNode [2022-12-13 11:07:54,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:07:54,358 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:54,358 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:07:54,358 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:07:54,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,382 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,427 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1234 [2022-12-13 11:07:54,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:07:54,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:07:54,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:07:54,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:07:54,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,461 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,465 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,469 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,480 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:07:54,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:07:54,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:07:54,481 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:07:54,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (1/1) ... [2022-12-13 11:07:54,487 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:07:54,495 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:07:54,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:07:54,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:07:54,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:07:54,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:07:54,771 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:07:54,773 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:08:05,192 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:08:05,198 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:08:05,198 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:08:05,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:08:05 BoogieIcfgContainer [2022-12-13 11:08:05,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:08:05,201 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:08:05,201 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:08:05,204 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:08:05,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:07:53" (1/3) ... [2022-12-13 11:08:05,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc0e8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:08:05, skipping insertion in model container [2022-12-13 11:08:05,204 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:07:54" (2/3) ... [2022-12-13 11:08:05,205 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fc0e8a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:08:05, skipping insertion in model container [2022-12-13 11:08:05,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:08:05" (3/3) ... [2022-12-13 11:08:05,206 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal2.c [2022-12-13 11:08:05,219 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:08:05,219 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:08:05,249 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:08:05,253 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;@36787db2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:08:05,254 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:08:05,256 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 11:08:05,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:08:05,260 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:08:05,260 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:08:05,261 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:08:05,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:05,264 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:08:05,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:08:05,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270367027] [2022-12-13 11:08:05,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:08:05,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:08:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:08:05,424 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:08:05,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:08:05,500 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:08:05,502 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:08:05,503 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 11:08:05,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:08:05,508 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:08:05,511 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:08:05,530 WARN L321 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-12-13 11:08:05,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:08:05 BoogieIcfgContainer [2022-12-13 11:08:05,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:08:05,539 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:08:05,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:08:05,539 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:08:05,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:08:05" (3/4) ... [2022-12-13 11:08:05,542 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:08:05,542 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:08:05,543 INFO L158 Benchmark]: Toolchain (without parser) took 11613.17ms. Allocated memory was 151.0MB in the beginning and 943.7MB in the end (delta: 792.7MB). Free memory was 119.5MB in the beginning and 461.5MB in the end (delta: -342.1MB). Peak memory consumption was 453.7MB. Max. memory is 16.1GB. [2022-12-13 11:08:05,543 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory was 52.0MB in the beginning and 51.9MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:08:05,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 424.14ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 81.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-12-13 11:08:05,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 69.20ms. Allocated memory is still 151.0MB. Free memory was 81.6MB in the beginning and 70.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:08:05,544 INFO L158 Benchmark]: Boogie Preprocessor took 52.78ms. Allocated memory is still 151.0MB. Free memory was 70.5MB in the beginning and 64.9MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 11:08:05,545 INFO L158 Benchmark]: RCFGBuilder took 10718.91ms. Allocated memory was 151.0MB in the beginning and 943.7MB in the end (delta: 792.7MB). Free memory was 64.9MB in the beginning and 497.2MB in the end (delta: -432.3MB). Peak memory consumption was 527.3MB. Max. memory is 16.1GB. [2022-12-13 11:08:05,545 INFO L158 Benchmark]: TraceAbstraction took 336.94ms. Allocated memory is still 943.7MB. Free memory was 496.1MB in the beginning and 461.5MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 11:08:05,545 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 943.7MB. Free memory is still 461.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:08:05,548 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 102.8MB. Free memory was 52.0MB in the beginning and 51.9MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 424.14ms. Allocated memory is still 151.0MB. Free memory was 119.5MB in the beginning and 81.6MB in the end (delta: 37.8MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 69.20ms. Allocated memory is still 151.0MB. Free memory was 81.6MB in the beginning and 70.5MB in the end (delta: 11.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.78ms. Allocated memory is still 151.0MB. Free memory was 70.5MB in the beginning and 64.9MB in the end (delta: 5.6MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 10718.91ms. Allocated memory was 151.0MB in the beginning and 943.7MB in the end (delta: 792.7MB). Free memory was 64.9MB in the beginning and 497.2MB in the end (delta: -432.3MB). Peak memory consumption was 527.3MB. Max. memory is 16.1GB. * TraceAbstraction took 336.94ms. Allocated memory is still 943.7MB. Free memory was 496.1MB in the beginning and 461.5MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 943.7MB. Free memory is still 461.5MB. 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 253, overapproximation of bitwiseOr at line 269, overapproximation of bitwiseAnd at line 198. 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_6 mask_SORT_6 = (SORT_6)-1 >> (sizeof(SORT_6) * 8 - 32); [L29] const SORT_6 msb_SORT_6 = (SORT_6)1 << (32 - 1); [L31] const SORT_10 mask_SORT_10 = (SORT_10)-1 >> (sizeof(SORT_10) * 8 - 4); [L32] const SORT_10 msb_SORT_10 = (SORT_10)1 << (4 - 1); [L34] const SORT_14 mask_SORT_14 = (SORT_14)-1 >> (sizeof(SORT_14) * 8 - 64); [L35] const SORT_14 msb_SORT_14 = (SORT_14)1 << (64 - 1); [L37] const SORT_121 mask_SORT_121 = (SORT_121)-1 >> (sizeof(SORT_121) * 8 - 2); [L38] const SORT_121 msb_SORT_121 = (SORT_121)1 << (2 - 1); [L40] const SORT_1 var_56 = 0; [L41] const SORT_6 var_60 = 0; [L42] const SORT_1 var_73 = 1; [L43] const SORT_14 var_77 = 0; [L44] const SORT_10 var_107 = 0; [L45] const SORT_10 var_116 = 2; [L46] const SORT_10 var_119 = 4; [L47] const SORT_10 var_126 = 1; [L48] const SORT_121 var_133 = 1; [L49] const SORT_121 var_136 = 3; [L50] const SORT_121 var_139 = 2; [L52] SORT_1 input_2; [L53] SORT_1 input_3; [L54] SORT_1 input_4; [L55] SORT_1 input_5; [L56] SORT_6 input_7; [L57] SORT_6 input_8; [L58] SORT_1 input_9; [L59] SORT_10 input_11; [L60] SORT_1 input_12; [L61] SORT_1 input_13; [L62] SORT_14 input_15; [L63] SORT_10 input_16; [L64] SORT_1 input_17; [L65] SORT_6 input_18; [L66] SORT_1 input_19; [L67] SORT_10 input_20; [L68] SORT_10 input_21; [L69] SORT_6 input_22; [L70] SORT_6 input_23; [L71] SORT_1 input_24; [L72] SORT_14 input_25; [L73] SORT_10 input_26; [L74] SORT_1 input_27; [L75] SORT_6 input_28; [L76] SORT_6 input_29; [L77] SORT_6 input_30; [L78] SORT_6 input_31; [L79] SORT_10 input_32; [L80] SORT_10 input_33; [L81] SORT_10 input_34; [L82] SORT_10 input_35; [L83] SORT_10 input_36; [L84] SORT_10 input_37; [L85] SORT_10 input_38; [L86] SORT_10 input_39; [L87] SORT_1 input_40; [L88] SORT_1 input_41; [L89] SORT_1 input_42; [L90] SORT_1 input_43; [L91] SORT_1 input_44; [L92] SORT_1 input_45; [L93] SORT_14 input_46; [L94] SORT_14 input_47; [L95] SORT_14 input_48; [L96] SORT_14 input_49; [L97] SORT_6 input_50; [L98] SORT_6 input_51; [L99] SORT_1 input_52; [L100] SORT_1 input_53; [L101] SORT_1 input_54; [L102] SORT_1 input_55; [L104] SORT_1 state_57 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L105] SORT_6 state_61 = __VERIFIER_nondet_uint() & mask_SORT_6; [L106] SORT_1 state_63 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L107] SORT_6 state_66 = __VERIFIER_nondet_uint() & mask_SORT_6; [L108] SORT_14 state_78 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L109] SORT_14 state_81 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L110] SORT_1 state_84 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L111] SORT_6 state_90 = __VERIFIER_nondet_uint() & mask_SORT_6; [L112] SORT_6 state_96 = __VERIFIER_nondet_uint() & mask_SORT_6; [L113] SORT_10 state_108 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L114] SORT_10 state_111 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L115] SORT_1 state_145 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L116] SORT_1 state_148 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L117] SORT_10 state_153 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L118] SORT_10 state_156 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L119] SORT_1 state_171 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L120] SORT_1 state_174 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L121] SORT_14 state_213 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L122] SORT_14 state_216 = __VERIFIER_nondet_ulong() & mask_SORT_14; [L123] SORT_1 state_219 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L124] SORT_10 state_222 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L125] SORT_1 state_227 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L126] SORT_6 state_234 = __VERIFIER_nondet_uint() & mask_SORT_6; [L127] SORT_1 state_237 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L128] SORT_10 state_242 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L129] SORT_6 state_263 = __VERIFIER_nondet_uint() & mask_SORT_6; [L130] SORT_10 state_274 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L131] SORT_1 state_302 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L132] SORT_10 state_307 = __VERIFIER_nondet_uchar() & mask_SORT_10; [L133] SORT_1 state_323 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L135] SORT_1 init_58_arg_1 = var_56; [L136] state_57 = init_58_arg_1 [L137] SORT_6 init_62_arg_1 = var_60; [L138] state_61 = init_62_arg_1 [L139] SORT_1 init_64_arg_1 = var_56; [L140] state_63 = init_64_arg_1 [L141] SORT_6 init_67_arg_1 = var_60; [L142] state_66 = init_67_arg_1 [L143] SORT_14 init_79_arg_1 = var_77; [L144] state_78 = init_79_arg_1 [L145] SORT_14 init_82_arg_1 = var_77; [L146] state_81 = init_82_arg_1 [L147] SORT_1 init_85_arg_1 = var_56; [L148] state_84 = init_85_arg_1 [L149] SORT_6 init_91_arg_1 = var_60; [L150] state_90 = init_91_arg_1 [L151] SORT_6 init_97_arg_1 = var_60; [L152] state_96 = init_97_arg_1 [L153] SORT_10 init_109_arg_1 = var_107; [L154] state_108 = init_109_arg_1 [L155] SORT_10 init_112_arg_1 = var_107; [L156] state_111 = init_112_arg_1 [L157] SORT_1 init_146_arg_1 = var_56; [L158] state_145 = init_146_arg_1 [L159] SORT_1 init_149_arg_1 = var_56; [L160] state_148 = init_149_arg_1 [L161] SORT_10 init_154_arg_1 = var_107; [L162] state_153 = init_154_arg_1 [L163] SORT_10 init_157_arg_1 = var_107; [L164] state_156 = init_157_arg_1 [L165] SORT_1 init_172_arg_1 = var_56; [L166] state_171 = init_172_arg_1 [L167] SORT_1 init_175_arg_1 = var_56; [L168] state_174 = init_175_arg_1 [L169] SORT_14 init_214_arg_1 = var_77; [L170] state_213 = init_214_arg_1 [L171] SORT_14 init_217_arg_1 = var_77; [L172] state_216 = init_217_arg_1 [L173] SORT_1 init_220_arg_1 = var_56; [L174] state_219 = init_220_arg_1 [L175] SORT_10 init_223_arg_1 = var_107; [L176] state_222 = init_223_arg_1 [L177] SORT_1 init_228_arg_1 = var_56; [L178] state_227 = init_228_arg_1 [L179] SORT_6 init_235_arg_1 = var_60; [L180] state_234 = init_235_arg_1 [L181] SORT_1 init_238_arg_1 = var_56; [L182] state_237 = init_238_arg_1 [L183] SORT_10 init_243_arg_1 = var_107; [L184] state_242 = init_243_arg_1 [L185] SORT_6 init_264_arg_1 = var_60; [L186] state_263 = init_264_arg_1 [L187] SORT_10 init_275_arg_1 = var_107; [L188] state_274 = init_275_arg_1 [L189] SORT_1 init_303_arg_1 = var_56; [L190] state_302 = init_303_arg_1 [L191] SORT_10 init_308_arg_1 = var_107; [L192] state_307 = init_308_arg_1 [L193] SORT_1 init_324_arg_1 = var_56; [L194] state_323 = init_324_arg_1 VAL [init_109_arg_1=0, init_112_arg_1=0, init_146_arg_1=0, init_149_arg_1=0, init_154_arg_1=0, init_157_arg_1=0, init_172_arg_1=0, init_175_arg_1=0, init_214_arg_1=0, init_217_arg_1=0, init_220_arg_1=0, init_223_arg_1=0, init_228_arg_1=0, init_235_arg_1=0, init_238_arg_1=0, init_243_arg_1=0, init_264_arg_1=0, init_275_arg_1=0, init_303_arg_1=0, init_308_arg_1=0, init_324_arg_1=0, init_58_arg_1=0, init_62_arg_1=0, init_64_arg_1=0, init_67_arg_1=0, init_79_arg_1=0, init_82_arg_1=0, init_85_arg_1=0, init_91_arg_1=0, init_97_arg_1=0, mask_SORT_1=1, mask_SORT_10=15, mask_SORT_121=3, mask_SORT_14=18446744073709551615, mask_SORT_6=4294967295, msb_SORT_1=1, msb_SORT_10=8, msb_SORT_121=2, msb_SORT_14=9223372036854775808, msb_SORT_6=2147483648, state_108=0, state_111=0, state_145=0, state_148=0, state_153=0, state_156=0, state_171=0, state_174=0, state_213=0, state_216=0, state_219=0, state_222=0, state_227=0, state_234=0, state_237=0, state_242=0, state_263=0, state_274=0, state_302=0, state_307=0, state_323=0, state_57=0, state_61=0, state_63=0, state_66=0, state_78=0, state_81=0, state_84=0, state_90=0, state_96=0, var_107=0, var_116=2, var_119=4, var_126=1, var_133=1, var_136=3, var_139=2, var_56=0, var_60=0, var_73=1, var_77=0] [L197] input_2 = __VERIFIER_nondet_uchar() [L198] input_2 = input_2 & mask_SORT_1 [L199] input_3 = __VERIFIER_nondet_uchar() [L200] input_4 = __VERIFIER_nondet_uchar() [L201] input_5 = __VERIFIER_nondet_uchar() [L202] input_7 = __VERIFIER_nondet_uint() [L203] input_8 = __VERIFIER_nondet_uint() [L204] input_9 = __VERIFIER_nondet_uchar() [L205] input_9 = input_9 & mask_SORT_1 [L206] input_11 = __VERIFIER_nondet_uchar() [L207] input_12 = __VERIFIER_nondet_uchar() [L208] input_13 = __VERIFIER_nondet_uchar() [L209] input_15 = __VERIFIER_nondet_ulong() [L210] input_16 = __VERIFIER_nondet_uchar() [L211] input_17 = __VERIFIER_nondet_uchar() [L212] input_18 = __VERIFIER_nondet_uint() [L213] input_19 = __VERIFIER_nondet_uchar() [L214] input_20 = __VERIFIER_nondet_uchar() [L215] input_21 = __VERIFIER_nondet_uchar() [L216] input_22 = __VERIFIER_nondet_uint() [L217] input_23 = __VERIFIER_nondet_uint() [L218] input_24 = __VERIFIER_nondet_uchar() [L219] input_25 = __VERIFIER_nondet_ulong() [L220] input_26 = __VERIFIER_nondet_uchar() [L221] input_27 = __VERIFIER_nondet_uchar() [L222] input_28 = __VERIFIER_nondet_uint() [L223] input_29 = __VERIFIER_nondet_uint() [L224] input_30 = __VERIFIER_nondet_uint() [L225] input_31 = __VERIFIER_nondet_uint() [L226] input_32 = __VERIFIER_nondet_uchar() [L227] input_33 = __VERIFIER_nondet_uchar() [L228] input_34 = __VERIFIER_nondet_uchar() [L229] input_35 = __VERIFIER_nondet_uchar() [L230] input_36 = __VERIFIER_nondet_uchar() [L231] input_37 = __VERIFIER_nondet_uchar() [L232] input_38 = __VERIFIER_nondet_uchar() [L233] input_39 = __VERIFIER_nondet_uchar() [L234] input_40 = __VERIFIER_nondet_uchar() [L235] input_41 = __VERIFIER_nondet_uchar() [L236] input_42 = __VERIFIER_nondet_uchar() [L237] input_43 = __VERIFIER_nondet_uchar() [L238] input_44 = __VERIFIER_nondet_uchar() [L239] input_45 = __VERIFIER_nondet_uchar() [L240] input_46 = __VERIFIER_nondet_ulong() [L241] input_47 = __VERIFIER_nondet_ulong() [L242] input_48 = __VERIFIER_nondet_ulong() [L243] input_49 = __VERIFIER_nondet_ulong() [L244] input_50 = __VERIFIER_nondet_uint() [L245] input_51 = __VERIFIER_nondet_uint() [L246] input_52 = __VERIFIER_nondet_uchar() [L247] input_53 = __VERIFIER_nondet_uchar() [L248] input_54 = __VERIFIER_nondet_uchar() [L249] input_55 = __VERIFIER_nondet_uchar() [L252] SORT_1 var_59_arg_0 = state_57; [L253] SORT_1 var_59 = ~var_59_arg_0; [L254] SORT_1 var_65_arg_0 = state_63; [L255] SORT_6 var_65_arg_1 = state_61; [L256] SORT_6 var_65_arg_2 = input_18; [L257] SORT_6 var_65 = var_65_arg_0 ? var_65_arg_1 : var_65_arg_2; [L258] var_65 = var_65 & mask_SORT_6 [L259] SORT_1 var_68_arg_0 = state_63; [L260] SORT_6 var_68_arg_1 = state_66; [L261] SORT_6 var_68_arg_2 = input_18; [L262] SORT_6 var_68 = var_68_arg_0 ? var_68_arg_1 : var_68_arg_2; [L263] var_68 = var_68 & mask_SORT_6 [L264] SORT_6 var_69_arg_0 = var_65; [L265] SORT_6 var_69_arg_1 = var_68; [L266] SORT_1 var_69 = var_69_arg_0 == var_69_arg_1; [L267] SORT_1 var_70_arg_0 = var_59; [L268] SORT_1 var_70_arg_1 = var_69; [L269] SORT_1 var_70 = var_70_arg_0 | var_70_arg_1; [L270] SORT_1 var_74_arg_0 = var_70; [L271] SORT_1 var_74 = ~var_74_arg_0; [L272] SORT_1 var_75_arg_0 = var_73; [L273] SORT_1 var_75_arg_1 = var_74; [L274] SORT_1 var_75 = var_75_arg_0 & var_75_arg_1; [L275] var_75 = var_75 & mask_SORT_1 [L276] SORT_1 bad_76_arg_0 = var_75; [L277] CALL __VERIFIER_assert(!(bad_76_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 11:08:05,582 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b --- 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 11:08:07,111 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:08:07,112 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:08:07,131 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:08:07,131 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:08:07,132 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:08:07,133 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:08:07,134 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:08:07,135 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:08:07,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:08:07,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:08:07,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:08:07,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:08:07,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:08:07,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:08:07,140 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:08:07,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:08:07,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:08:07,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:08:07,143 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:08:07,144 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:08:07,145 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:08:07,146 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:08:07,147 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:08:07,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:08:07,150 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:08:07,150 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:08:07,151 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:08:07,151 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:08:07,152 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:08:07,152 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:08:07,152 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:08:07,153 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:08:07,154 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:08:07,154 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:08:07,154 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:08:07,155 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:08:07,155 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:08:07,155 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:08:07,156 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:08:07,156 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:08:07,157 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-12-13 11:08:07,173 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:08:07,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:08:07,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:08:07,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:08:07,175 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:08:07,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:08:07,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:08:07,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:08:07,175 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:08:07,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:08:07,176 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:08:07,177 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:08:07,177 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:08:07,177 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:08:07,178 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:08:07,178 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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6b05f6b8a74845cd1807b48d64b2a001b228d836df38230df5acfa492c9d217b [2022-12-13 11:08:07,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:08:07,404 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:08:07,406 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:08:07,407 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:08:07,407 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:08:07,408 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-12-13 11:08:09,958 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:08:10,184 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:08:10,185 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c [2022-12-13 11:08:10,196 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data/cb542e738/418a523329724241bc95518b24793aab/FLAGb74ecb0d2 [2022-12-13 11:08:10,210 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/data/cb542e738/418a523329724241bc95518b24793aab [2022-12-13 11:08:10,212 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:08:10,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:08:10,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:08:10,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:08:10,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:08:10,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28c2d1e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10, skipping insertion in model container [2022-12-13 11:08:10,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:08:10,270 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:08:10,382 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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-12-13 11:08:10,535 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:08:10,539 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:08:10,546 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_ea8e23f5-d706-4701-bd86-ff1dd70fc885/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.cal2.c[1107,1120] [2022-12-13 11:08:10,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:08:10,620 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:08:10,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10 WrapperNode [2022-12-13 11:08:10,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:08:10,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:08:10,621 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:08:10,621 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:08:10,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,681 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1234 [2022-12-13 11:08:10,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:08:10,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:08:10,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:08:10,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:08:10,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,697 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,697 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,718 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,721 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:08:10,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:08:10,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:08:10,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:08:10,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (1/1) ... [2022-12-13 11:08:10,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:08:10,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:08:10,752 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:08:10,754 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:08:10,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:08:10,778 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:08:11,023 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:08:11,024 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:08:12,209 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:08:12,216 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:08:12,216 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 11:08:12,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:08:12 BoogieIcfgContainer [2022-12-13 11:08:12,218 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:08:12,219 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:08:12,219 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:08:12,222 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:08:12,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:08:10" (1/3) ... [2022-12-13 11:08:12,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7735e47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:08:12, skipping insertion in model container [2022-12-13 11:08:12,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:08:10" (2/3) ... [2022-12-13 11:08:12,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7735e47c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:08:12, skipping insertion in model container [2022-12-13 11:08:12,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:08:12" (3/3) ... [2022-12-13 11:08:12,224 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.cal2.c [2022-12-13 11:08:12,239 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:08:12,239 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 11:08:12,274 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:08:12,279 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;@7844266b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:08:12,279 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 11:08:12,282 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 11:08:12,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-12-13 11:08:12,286 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:08:12,286 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 11:08:12,287 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:08:12,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:12,290 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-12-13 11:08:12,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:12,299 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1877674534] [2022-12-13 11:08:12,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:08:12,299 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 11:08:12,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:12,300 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:12,302 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:12,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:08:12,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 16 conjunts are in the unsatisfiable core [2022-12-13 11:08:12,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:08:12,674 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 11:08:12,674 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 11:08:12,675 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:08:12,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1877674534] [2022-12-13 11:08:12,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1877674534] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:08:12,676 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:08:12,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 11:08:12,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [100757229] [2022-12-13 11:08:12,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:08:12,682 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 11:08:12,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:08:12,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 11:08:12,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 11:08:12,711 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 11:08:12,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:08:12,984 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-12-13 11:08:12,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 11:08:12,986 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 11:08:12,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:08:12,992 INFO L225 Difference]: With dead ends: 20 [2022-12-13 11:08:12,992 INFO L226 Difference]: Without dead ends: 11 [2022-12-13 11:08:12,994 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 11:08:12,996 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 11:08:12,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 11:08:13,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-13 11:08:13,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-12-13 11:08:13,017 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 11:08:13,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-12-13 11:08:13,018 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-12-13 11:08:13,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:08:13,019 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-12-13 11:08:13,019 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 11:08:13,019 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-12-13 11:08:13,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 11:08:13,019 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:08:13,019 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-12-13 11:08:13,032 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:13,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:13,222 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:08:13,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:13,224 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-12-13 11:08:13,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:13,230 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1503267075] [2022-12-13 11:08:13,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:08:13,231 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 11:08:13,231 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:13,234 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:13,286 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:13,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:08:13,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 1089 conjuncts, 30 conjunts are in the unsatisfiable core [2022-12-13 11:08:13,992 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:08:14,140 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 11:08:14,140 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 11:08:14,736 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 11:08:14,736 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 11:08:14,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1503267075] [2022-12-13 11:08:14,737 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1503267075] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 11:08:14,737 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-12-13 11:08:14,737 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-12-13 11:08:14,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096376601] [2022-12-13 11:08:14,737 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-12-13 11:08:14,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-12-13 11:08:14,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 11:08:14,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-12-13 11:08:14,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-12-13 11:08:14,740 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 11:08:15,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 11:08:15,396 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-12-13 11:08:15,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:08:15,396 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 11:08:15,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 11:08:15,397 INFO L225 Difference]: With dead ends: 16 [2022-12-13 11:08:15,397 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 11:08:15,397 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2022-12-13 11:08:15,398 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 21 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 11:08:15,398 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 21 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 11:08:15,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 11:08:15,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-12-13 11:08:15,400 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 11:08:15,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-12-13 11:08:15,401 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-12-13 11:08:15,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 11:08:15,401 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-12-13 11:08:15,401 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 11:08:15,401 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-12-13 11:08:15,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:08:15,401 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:08:15,402 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 11:08:15,419 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:15,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:15,604 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 11:08:15,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:08:15,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-12-13 11:08:15,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:08:15,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1216263328] [2022-12-13 11:08:15,610 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 11:08:15,611 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 11:08:15,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:08:15,612 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:15,613 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea8e23f5-d706-4701-bd86-ff1dd70fc885/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 11:08:17,656 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 11:08:17,656 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 11:08:17,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 2017 conjuncts, 493 conjunts are in the unsatisfiable core [2022-12-13 11:08:17,760 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 11:09:13,497 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 11:09:13,498 INFO L328 TraceCheckSpWp]: Computing backward predicates...