./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:26:14,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:26:14,174 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:26:14,203 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:26:14,203 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:26:14,204 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:26:14,206 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:26:14,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:26:14,209 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:26:14,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:26:14,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:26:14,213 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:26:14,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:26:14,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:26:14,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:26:14,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:26:14,217 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:26:14,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:26:14,220 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:26:14,222 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:26:14,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:26:14,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:26:14,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:26:14,227 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:26:14,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:26:14,231 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:26:14,232 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:26:14,233 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:26:14,233 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:26:14,234 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:26:14,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:26:14,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:26:14,236 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:26:14,237 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:26:14,238 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:26:14,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:26:14,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:26:14,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:26:14,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:26:14,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:26:14,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:26:14,243 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:26:14,266 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:26:14,267 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:26:14,267 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:26:14,267 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:26:14,268 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:26:14,268 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:26:14,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:26:14,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:26:14,270 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:26:14,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:26:14,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:26:14,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:26:14,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:26:14,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:26:14,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:26:14,271 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:26:14,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:26:14,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:26:14,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:26:14,272 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:26:14,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:26:14,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:26:14,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:26:14,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:26:14,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:26:14,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:26:14,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:26:14,274 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:26:14,274 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:26:14,275 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:26:14,275 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 [2022-11-20 12:26:14,591 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:26:14,614 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:26:14,617 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:26:14,618 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:26:14,619 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:26:14,620 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-20 12:26:17,635 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:26:17,921 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:26:17,927 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-20 12:26:17,959 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data/b917e422a/de91bfa060e040f0a69f7dda34c5afa7/FLAG21aae3edb [2022-11-20 12:26:17,980 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data/b917e422a/de91bfa060e040f0a69f7dda34c5afa7 [2022-11-20 12:26:17,983 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:26:17,987 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:26:17,991 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:26:17,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:26:17,995 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:26:17,998 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:17" (1/1) ... [2022-11-20 12:26:18,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36f9298f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:17, skipping insertion in model container [2022-11-20 12:26:18,000 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:17" (1/1) ... [2022-11-20 12:26:18,008 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:26:18,057 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:26:18,187 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_a39edea6-827c-4486-8df5-f5fc74a356ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-20 12:26:18,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:26:18,269 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:26:18,280 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_a39edea6-827c-4486-8df5-f5fc74a356ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-20 12:26:18,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:26:18,365 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:26:18,365 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18 WrapperNode [2022-11-20 12:26:18,366 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:26:18,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:26:18,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:26:18,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:26:18,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,429 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 270 [2022-11-20 12:26:18,429 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:26:18,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:26:18,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:26:18,430 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:26:18,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,455 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,455 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,478 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,491 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,497 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,501 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:26:18,502 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:26:18,502 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:26:18,502 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:26:18,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (1/1) ... [2022-11-20 12:26:18,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:26:18,532 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:18,547 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:26:18,563 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:26:18,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:26:18,595 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:26:18,756 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:26:18,758 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:26:19,697 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:26:19,704 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:26:19,704 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:26:19,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:19 BoogieIcfgContainer [2022-11-20 12:26:19,706 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:26:19,709 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:26:19,709 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:26:19,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:26:19,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:26:17" (1/3) ... [2022-11-20 12:26:19,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b34420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:19, skipping insertion in model container [2022-11-20 12:26:19,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:18" (2/3) ... [2022-11-20 12:26:19,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b34420 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:19, skipping insertion in model container [2022-11-20 12:26:19,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:19" (3/3) ... [2022-11-20 12:26:19,716 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2022-11-20 12:26:19,735 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:26:19,735 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:26:19,783 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:26:19,789 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;@7161f3be, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:26:19,789 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:26:19,794 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:19,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 12:26:19,799 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:19,799 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 12:26:19,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:26:19,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:19,804 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 12:26:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:26:19,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770260537] [2022-11-20 12:26:19,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:19,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:26:20,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:26:20,057 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:26:20,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:26:20,185 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:26:20,187 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:26:20,188 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:26:20,193 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:26:20,197 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 12:26:20,201 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:26:20,225 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:26:20,234 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:26:20 BoogieIcfgContainer [2022-11-20 12:26:20,235 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:26:20,238 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:26:20,238 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:26:20,238 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:26:20,239 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:19" (3/4) ... [2022-11-20 12:26:20,242 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:26:20,242 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:26:20,244 INFO L158 Benchmark]: Toolchain (without parser) took 2256.58ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 121.7MB in the beginning and 77.6MB in the end (delta: 44.2MB). Peak memory consumption was 77.6MB. Max. memory is 16.1GB. [2022-11-20 12:26:20,245 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:26:20,246 INFO L158 Benchmark]: CACSL2BoogieTranslator took 375.09ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 105.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 12:26:20,247 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.46ms. Allocated memory is still 148.9MB. Free memory was 105.1MB in the beginning and 101.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:26:20,247 INFO L158 Benchmark]: Boogie Preprocessor took 71.13ms. Allocated memory is still 148.9MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:26:20,253 INFO L158 Benchmark]: RCFGBuilder took 1204.80ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 99.3MB in the beginning and 101.7MB in the end (delta: -2.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-11-20 12:26:20,254 INFO L158 Benchmark]: TraceAbstraction took 525.60ms. Allocated memory is still 180.4MB. Free memory was 101.7MB in the beginning and 77.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-11-20 12:26:20,254 INFO L158 Benchmark]: Witness Printer took 4.65ms. Allocated memory is still 180.4MB. Free memory is still 77.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:26:20,262 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 113.2MB. Free memory is still 81.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 375.09ms. Allocated memory is still 148.9MB. Free memory was 121.2MB in the beginning and 105.1MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.46ms. Allocated memory is still 148.9MB. Free memory was 105.1MB in the beginning and 101.4MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 71.13ms. Allocated memory is still 148.9MB. Free memory was 101.4MB in the beginning and 99.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1204.80ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 99.3MB in the beginning and 101.7MB in the end (delta: -2.4MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 525.60ms. Allocated memory is still 180.4MB. Free memory was 101.7MB in the beginning and 77.6MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Witness Printer took 4.65ms. Allocated memory is still 180.4MB. Free memory is still 77.6MB. 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 78, overapproximation of bitwiseOr at line 87, overapproximation of bitwiseAnd at line 72. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 32); [L29] const SORT_7 msb_SORT_7 = (SORT_7)1 << (32 - 1); [L31] const SORT_12 mask_SORT_12 = (SORT_12)-1 >> (sizeof(SORT_12) * 8 - 3); [L32] const SORT_12 msb_SORT_12 = (SORT_12)1 << (3 - 1); [L34] const SORT_47 mask_SORT_47 = (SORT_47)-1 >> (sizeof(SORT_47) * 8 - 2); [L35] const SORT_47 msb_SORT_47 = (SORT_47)1 << (2 - 1); [L37] const SORT_1 var_4 = 0; [L38] const SORT_7 var_9 = 1; [L39] const SORT_12 var_13 = 0; [L40] const SORT_1 var_21 = 1; [L41] const SORT_12 var_28 = 2; [L42] const SORT_12 var_31 = 1; [L43] const SORT_12 var_35 = 4; [L44] const SORT_12 var_38 = 6; [L45] const SORT_12 var_41 = 5; [L46] const SORT_12 var_45 = 3; [L47] const SORT_7 var_57 = 0; [L49] SORT_1 input_2; [L50] SORT_1 input_3; [L51] SORT_12 input_55; [L52] SORT_12 input_62; [L53] SORT_12 input_75; [L55] SORT_1 state_5 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L56] SORT_12 state_14 = __VERIFIER_nondet_uchar() & mask_SORT_12; [L58] SORT_1 init_6_arg_1 = var_4; [L59] state_5 = init_6_arg_1 [L60] SORT_12 init_15_arg_1 = var_13; [L61] state_14 = init_15_arg_1 VAL [init_15_arg_1=0, init_6_arg_1=0, mask_SORT_1=1, mask_SORT_12=7, mask_SORT_47=3, mask_SORT_7=4294967295, msb_SORT_1=1, msb_SORT_12=4, msb_SORT_47=2, msb_SORT_7=2147483648, state_14=0, state_5=0, var_13=0, var_21=1, var_28=2, var_31=1, var_35=4, var_38=6, var_4=0, var_41=5, var_45=3, var_57=0, var_9=1] [L64] input_2 = __VERIFIER_nondet_uchar() [L65] input_3 = __VERIFIER_nondet_uchar() [L66] input_55 = __VERIFIER_nondet_uchar() [L67] input_62 = __VERIFIER_nondet_uchar() [L68] input_75 = __VERIFIER_nondet_uchar() [L71] SORT_1 var_8_arg_0 = state_5; [L72] var_8_arg_0 = var_8_arg_0 & mask_SORT_1 [L73] SORT_7 var_8 = var_8_arg_0; [L74] SORT_7 var_10_arg_0 = var_8; [L75] SORT_7 var_10_arg_1 = var_9; [L76] SORT_1 var_10 = var_10_arg_0 == var_10_arg_1; [L77] SORT_1 var_11_arg_0 = var_10; [L78] SORT_1 var_11 = ~var_11_arg_0; [L79] SORT_12 var_16_arg_0 = state_14; [L80] var_16_arg_0 = var_16_arg_0 & mask_SORT_12 [L81] SORT_7 var_16 = var_16_arg_0; [L82] SORT_7 var_17_arg_0 = var_16; [L83] SORT_7 var_17_arg_1 = var_9; [L84] SORT_1 var_17 = var_17_arg_0 == var_17_arg_1; [L85] SORT_1 var_18_arg_0 = var_11; [L86] SORT_1 var_18_arg_1 = var_17; [L87] SORT_1 var_18 = var_18_arg_0 | var_18_arg_1; [L88] SORT_1 var_22_arg_0 = var_18; [L89] SORT_1 var_22 = ~var_22_arg_0; [L90] SORT_1 var_23_arg_0 = var_21; [L91] SORT_1 var_23_arg_1 = var_22; [L92] SORT_1 var_23 = var_23_arg_0 & var_23_arg_1; [L93] var_23 = var_23 & mask_SORT_1 [L94] SORT_1 bad_24_arg_0 = var_23; [L95] CALL __VERIFIER_assert(!(bad_24_arg_0)) [L20] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L20] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, 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 [2022-11-20 12:26:20,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 12:26:22,707 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:26:22,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:26:22,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:26:22,729 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:26:22,730 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:26:22,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:26:22,733 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:26:22,735 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:26:22,736 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:26:22,737 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:26:22,738 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:26:22,739 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:26:22,740 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:26:22,741 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:26:22,742 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:26:22,743 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:26:22,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:26:22,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:26:22,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:26:22,750 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:26:22,751 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:26:22,752 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:26:22,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:26:22,756 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:26:22,757 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:26:22,757 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:26:22,758 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:26:22,759 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:26:22,760 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:26:22,760 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:26:22,761 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:26:22,762 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:26:22,762 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:26:22,776 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:26:22,776 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:26:22,777 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:26:22,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:26:22,778 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:26:22,779 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:26:22,780 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:26:22,781 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:26:22,821 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:26:22,822 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:26:22,823 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:26:22,824 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:26:22,825 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:26:22,825 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:26:22,825 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:26:22,826 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:26:22,826 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:26:22,826 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:26:22,827 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:26:22,827 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:26:22,828 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:26:22,828 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:26:22,828 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:26:22,828 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:26:22,828 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:26:22,829 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:26:22,829 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:26:22,829 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:26:22,829 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:26:22,829 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:26:22,830 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:26:22,830 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:26:22,830 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:26:22,830 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:26:22,830 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:26:22,831 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:26:22,831 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:26:22,831 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:26:22,831 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:26:22,831 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:26:22,832 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:26:22,832 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b85d52a1932fa85f97c362ca60a681b550e6be8c5a2b0a8b0363e5b8a5a0a447 [2022-11-20 12:26:23,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:26:23,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:26:23,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:26:23,216 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:26:23,217 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:26:23,219 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-20 12:26:26,217 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:26:26,411 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:26:26,411 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c [2022-11-20 12:26:26,424 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data/0bdaf629a/a76870b843644ca0872be6dbb34143b1/FLAG3ae893dbe [2022-11-20 12:26:26,439 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/data/0bdaf629a/a76870b843644ca0872be6dbb34143b1 [2022-11-20 12:26:26,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:26:26,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:26:26,449 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:26:26,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:26:26,454 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:26:26,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b02ccfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26, skipping insertion in model container [2022-11-20 12:26:26,456 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:26:26,514 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:26:26,657 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_a39edea6-827c-4486-8df5-f5fc74a356ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-20 12:26:26,747 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:26:26,752 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:26:26,764 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_a39edea6-827c-4486-8df5-f5fc74a356ae/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_b02.c[1107,1120] [2022-11-20 12:26:26,828 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:26:26,850 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:26:26,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26 WrapperNode [2022-11-20 12:26:26,851 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:26:26,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:26:26,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:26:26,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:26:26,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,936 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 270 [2022-11-20 12:26:26,937 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:26:26,938 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:26:26,938 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:26:26,938 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:26:26,954 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,954 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:26,979 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:27,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:27,002 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:27,004 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:27,015 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:26:27,016 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:26:27,016 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:26:27,017 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:26:27,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (1/1) ... [2022-11-20 12:26:27,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:26:27,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:26:27,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:26:27,087 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:26:27,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:26:27,109 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:26:27,282 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:26:27,288 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:26:27,764 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:26:27,773 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:26:27,773 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:26:27,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:27 BoogieIcfgContainer [2022-11-20 12:26:27,776 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:26:27,784 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:26:27,784 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:26:27,787 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:26:27,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:26:26" (1/3) ... [2022-11-20 12:26:27,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9b2b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:27, skipping insertion in model container [2022-11-20 12:26:27,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:26:26" (2/3) ... [2022-11-20 12:26:27,789 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a9b2b47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:26:27, skipping insertion in model container [2022-11-20 12:26:27,789 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:27" (3/3) ... [2022-11-20 12:26:27,790 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_b02.c [2022-11-20 12:26:27,815 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:26:27,815 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:26:27,856 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:26:27,863 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;@7fedcc5c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:26:27,863 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:26:27,867 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:27,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 12:26:27,873 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:27,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 12:26:27,874 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:26:27,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:27,881 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 12:26:27,893 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:26:27,894 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1150421525] [2022-11-20 12:26:27,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:27,894 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:26:27,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:26:27,900 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:26:27,915 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-20 12:26:28,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:28,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 22 conjunts are in the unsatisfiable core [2022-11-20 12:26:28,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:28,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:28,417 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:26:28,418 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:26:28,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1150421525] [2022-11-20 12:26:28,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1150421525] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:26:28,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:26:28,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:26:28,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140903584] [2022-11-20 12:26:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:26:28,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:26:28,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:26:28,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:26:28,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:26:28,476 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.4444444444444444) internal successors, (13), 10 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:28,574 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:28,575 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 12:26:28,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:26:28,578 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 12:26:28,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:28,586 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:26:28,587 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 12:26:28,589 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 12:26:28,594 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:28,596 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 12:26:28,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 12:26:28,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 12:26:28,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.125) internal successors, (9), 8 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:28,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 12:26:28,634 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 12:26:28,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:28,634 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 12:26:28,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.25) internal successors, (5), 4 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:28,635 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 12:26:28,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:26:28,636 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:28,636 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:26:28,653 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:28,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:26:28,848 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:26:28,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:28,849 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 12:26:28,850 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:26:28,851 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [234119345] [2022-11-20 12:26:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:26:28,851 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:26:28,851 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:26:28,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:26:28,923 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-20 12:26:29,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:26:29,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 74 conjunts are in the unsatisfiable core [2022-11-20 12:26:29,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:29,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:29,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:26:50,028 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:50,028 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:26:50,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [234119345] [2022-11-20 12:26:50,029 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [234119345] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:26:50,029 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:26:50,029 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 12:26:50,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811325255] [2022-11-20 12:26:50,030 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:26:50,031 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:26:50,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:26:50,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:26:50,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:26:50,033 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:50,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:26:50,220 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 12:26:50,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:26:50,221 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 12:26:50,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:26:50,222 INFO L225 Difference]: With dead ends: 16 [2022-11-20 12:26:50,222 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 12:26:50,222 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2022-11-20 12:26:50,224 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 8 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 12 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:26:50,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 23 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 12 Unchecked, 0.1s Time] [2022-11-20 12:26:50,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 12:26:50,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 12:26:50,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0909090909090908) internal successors, (12), 11 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:50,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 12:26:50,233 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 12:26:50,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:26:50,234 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 12:26:50,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.75) internal successors, (14), 8 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:26:50,235 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 12:26:50,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:26:50,237 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:26:50,237 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 12:26:50,254 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 12:26:50,454 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:26:50,455 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:26:50,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:26:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 12:26:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:26:50,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [137495876] [2022-11-20 12:26:50,457 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:26:50,457 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:26:50,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:26:50,464 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:26:50,510 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-20 12:26:50,707 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:26:50,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:26:50,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 111 conjunts are in the unsatisfiable core [2022-11-20 12:26:50,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:26:51,462 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:26:51,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:27:40,920 WARN L233 SmtUtils]: Spent 6.14s on a formula simplification. DAG size of input: 553 DAG size of output: 246 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:27:42,018 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:27:42,019 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:27:42,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [137495876] [2022-11-20 12:27:42,019 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [137495876] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:27:42,020 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:27:42,020 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 12:27:42,020 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923617194] [2022-11-20 12:27:42,020 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:27:42,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:27:42,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:27:42,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:27:42,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:27:42,022 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:27:42,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:27:42,268 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2022-11-20 12:27:42,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:27:42,270 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 12:27:42,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:27:42,275 INFO L225 Difference]: With dead ends: 19 [2022-11-20 12:27:42,275 INFO L226 Difference]: Without dead ends: 17 [2022-11-20 12:27:42,275 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2022-11-20 12:27:42,276 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 11 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 22 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 12:27:42,277 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 27 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 23 Invalid, 0 Unknown, 22 Unchecked, 0.1s Time] [2022-11-20 12:27:42,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-20 12:27:42,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-11-20 12:27:42,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.0714285714285714) internal successors, (15), 14 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:27:42,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-11-20 12:27:42,282 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2022-11-20 12:27:42,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:27:42,282 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-11-20 12:27:42,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:27:42,283 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-11-20 12:27:42,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 12:27:42,283 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:27:42,283 INFO L195 NwaCegarLoop]: trace histogram [4, 3, 3, 1, 1, 1, 1] [2022-11-20 12:27:42,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-20 12:27:42,487 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:27:42,487 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:27:42,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:27:42,488 INFO L85 PathProgramCache]: Analyzing trace with hash 1580781475, now seen corresponding path program 3 times [2022-11-20 12:27:42,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:27:42,488 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1665359644] [2022-11-20 12:27:42,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:27:42,489 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:27:42,489 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:27:42,495 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-20 12:27:42,498 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-20 12:27:42,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-11-20 12:27:42,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:27:42,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 470 conjuncts, 179 conjunts are in the unsatisfiable core [2022-11-20 12:27:42,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:27:49,161 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:27:49,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:28:18,766 WARN L233 SmtUtils]: Spent 11.41s on a formula simplification. DAG size of input: 452 DAG size of output: 327 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:28:28,972 WARN L233 SmtUtils]: Spent 8.07s on a formula simplification. DAG size of input: 334 DAG size of output: 274 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:29:42,710 WARN L233 SmtUtils]: Spent 56.88s on a formula simplification. DAG size of input: 1047 DAG size of output: 453 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:29:50,505 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-20 12:29:50,506 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:29:50,506 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1665359644] [2022-11-20 12:29:50,506 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1665359644] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:29:50,506 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:29:50,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2022-11-20 12:29:50,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022741320] [2022-11-20 12:29:50,507 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:29:50,507 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-11-20 12:29:50,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:29:50,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-11-20 12:29:50,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=144, Unknown=1, NotChecked=0, Total=182 [2022-11-20 12:29:50,509 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:29:51,041 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2022-11-20 12:29:51,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-11-20 12:29:51,041 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-20 12:29:51,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:29:51,041 INFO L225 Difference]: With dead ends: 15 [2022-11-20 12:29:51,041 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 12:29:51,042 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 86.3s TimeCoverageRelationStatistics Valid=90, Invalid=251, Unknown=1, NotChecked=0, Total=342 [2022-11-20 12:29:51,043 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 1 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 9 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 12:29:51,043 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 13 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 6 Invalid, 0 Unknown, 9 Unchecked, 0.0s Time] [2022-11-20 12:29:51,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 12:29:51,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 12:29:51,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 12:29:51,044 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2022-11-20 12:29:51,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:29:51,045 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 12:29:51,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 12:29:51,045 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 12:29:51,045 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 12:29:51,048 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:29:51,063 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2022-11-20 12:29:51,259 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-20 12:29:51,261 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-20 12:29:51,574 INFO L895 garLoopResultBuilder]: At program point L289(lines 22 290) the Hoare annotation is: false [2022-11-20 12:29:51,574 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-20 12:29:51,575 INFO L895 garLoopResultBuilder]: At program point L62-2(lines 62 288) the Hoare annotation is: (let ((.cse0 (= (_ bv1 8) |ULTIMATE.start_main_~mask_SORT_1~0#1|)) (.cse1 (= |ULTIMATE.start_main_~var_41~0#1| (_ bv5 8))) (.cse2 (= (_ bv6 8) |ULTIMATE.start_main_~var_38~0#1|)) (.cse3 (= (_ bv1 8) |ULTIMATE.start_main_~var_31~0#1|)) (.cse4 (= (_ bv4 8) |ULTIMATE.start_main_~var_35~0#1|)) (.cse5 (= (_ bv2 8) |ULTIMATE.start_main_~var_28~0#1|)) (.cse6 (= |ULTIMATE.start_main_~var_13~0#1| (_ bv0 8))) (.cse7 (= (_ bv1 8) |ULTIMATE.start_main_~var_21~0#1|)) (.cse8 (= |ULTIMATE.start_main_~var_45~0#1| (_ bv3 8))) (.cse9 (= |ULTIMATE.start_main_~mask_SORT_47~0#1| (_ bv3 8))) (.cse10 (= |ULTIMATE.start_main_~var_4~0#1| (_ bv0 8))) (.cse11 (= (_ bv7 8) |ULTIMATE.start_main_~mask_SORT_12~0#1|)) (.cse12 (= |ULTIMATE.start_main_~var_9~0#1| (_ bv1 32)))) (or (and .cse0 .cse1 (= |ULTIMATE.start_main_~state_5~0#1| (_ bv0 8)) .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 (= |ULTIMATE.start_main_~var_13~0#1| |ULTIMATE.start_main_~state_14~0#1|)) (let ((.cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_12~0#1|))) (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| (_ bv0 32))) (or (not (= ((_ zero_extend 24) ((_ extract 7 0) (bvand ((_ zero_extend 24) |ULTIMATE.start_main_~state_5~0#1|) ((_ zero_extend 24) |ULTIMATE.start_main_~mask_SORT_1~0#1|)))) |ULTIMATE.start_main_~var_9~0#1|)) (= ((_ zero_extend 24) ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) |ULTIMATE.start_main_~state_14~0#1|)))) |ULTIMATE.start_main_~var_9~0#1|)) .cse1 .cse2 .cse3 .cse4 (exists ((|ULTIMATE.start_main_~var_90_arg_1~0#1| (_ BitVec 8))) (= ((_ extract 7 0) (bvand .cse13 ((_ zero_extend 24) ((_ extract 7 0) ((_ zero_extend 24) |ULTIMATE.start_main_~var_90_arg_1~0#1|))))) |ULTIMATE.start_main_~state_14~0#1|)) .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12)))) [2022-11-20 12:29:51,575 INFO L899 garLoopResultBuilder]: For program point L62-3(lines 62 288) no Hoare annotation was computed. [2022-11-20 12:29:51,575 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-20 12:29:51,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-20 12:29:51,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-20 12:29:51,576 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 20) no Hoare annotation was computed. [2022-11-20 12:29:51,576 INFO L899 garLoopResultBuilder]: For program point L20(line 20) no Hoare annotation was computed. [2022-11-20 12:29:51,576 INFO L899 garLoopResultBuilder]: For program point L20-1(line 20) no Hoare annotation was computed. [2022-11-20 12:29:51,577 INFO L899 garLoopResultBuilder]: For program point L20-3(line 20) no Hoare annotation was computed. [2022-11-20 12:29:51,580 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1] [2022-11-20 12:29:51,583 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:29:51,594 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] [2022-11-20 12:29:51,600 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] [2022-11-20 12:29:51,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:29:51 BoogieIcfgContainer [2022-11-20 12:29:51,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:29:51,603 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:29:51,603 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:29:51,603 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:29:51,604 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:26:27" (3/4) ... [2022-11-20 12:29:51,607 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 12:29:51,619 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-20 12:29:51,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 12:29:51,620 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 12:29:51,656 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((((((((1bv8 == mask_SORT_1 && var_41 == 5bv8) && state_5 == 0bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) && var_13 == state_14) || (((((((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && (!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_9) || ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(state_14))[7:0]) == var_9)) && var_41 == 5bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && (\exists ULTIMATE.start_main_~var_90_arg_1~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_90_arg_1~0#1)[7:0]))[7:0] == state_14)) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) [2022-11-20 12:29:51,717 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 12:29:51,717 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:29:51,718 INFO L158 Benchmark]: Toolchain (without parser) took 205270.63ms. Allocated memory was 65.0MB in the beginning and 390.1MB in the end (delta: 325.1MB). Free memory was 36.1MB in the beginning and 356.8MB in the end (delta: -320.7MB). Peak memory consumption was 232.5MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,718 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:29:51,719 INFO L158 Benchmark]: CACSL2BoogieTranslator took 402.41ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 35.9MB in the beginning and 62.4MB in the end (delta: -26.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,719 INFO L158 Benchmark]: Boogie Procedure Inliner took 84.43ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 59.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,719 INFO L158 Benchmark]: Boogie Preprocessor took 78.02ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,719 INFO L158 Benchmark]: RCFGBuilder took 765.36ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 50.2MB in the end (delta: 6.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,720 INFO L158 Benchmark]: TraceAbstraction took 203818.36ms. Allocated memory was 90.2MB in the beginning and 390.1MB in the end (delta: 299.9MB). Free memory was 49.4MB in the beginning and 132.7MB in the end (delta: -83.4MB). Peak memory consumption was 215.3MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,720 INFO L158 Benchmark]: Witness Printer took 114.39ms. Allocated memory is still 390.1MB. Free memory was 132.7MB in the beginning and 356.8MB in the end (delta: -224.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. [2022-11-20 12:29:51,723 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 65.0MB. Free memory was 43.4MB in the beginning and 43.3MB in the end (delta: 81.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 402.41ms. Allocated memory was 65.0MB in the beginning and 90.2MB in the end (delta: 25.2MB). Free memory was 35.9MB in the beginning and 62.4MB in the end (delta: -26.4MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 84.43ms. Allocated memory is still 90.2MB. Free memory was 62.4MB in the beginning and 59.1MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 78.02ms. Allocated memory is still 90.2MB. Free memory was 59.1MB in the beginning and 57.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 765.36ms. Allocated memory is still 90.2MB. Free memory was 57.0MB in the beginning and 50.2MB in the end (delta: 6.8MB). Peak memory consumption was 13.7MB. Max. memory is 16.1GB. * TraceAbstraction took 203818.36ms. Allocated memory was 90.2MB in the beginning and 390.1MB in the end (delta: 299.9MB). Free memory was 49.4MB in the beginning and 132.7MB in the end (delta: -83.4MB). Peak memory consumption was 215.3MB. Max. memory is 16.1GB. * Witness Printer took 114.39ms. Allocated memory is still 390.1MB. Free memory was 132.7MB in the beginning and 356.8MB in the end (delta: -224.1MB). Peak memory consumption was 4.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 20]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 203.7s, OverallIterations: 4, TraceHistogramMax: 4, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 24 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 43 IncrementalHoareTripleChecker+Unchecked, 55 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 56 IncrementalHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 21 mSDtfsCounter, 56 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 34 SyntacticMatches, 3 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 98.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=3, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 123 HoareAnnotationTreeSize, 2 FomulaSimplifications, 34 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 153 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 200.3s InterpolantComputationTime, 38 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 64 ConstructedInterpolants, 25 QuantifiedInterpolants, 41229 SizeOfPredicates, 404 NumberOfNonLiveVariables, 1259 ConjunctsInSsa, 386 ConjunctsInUnsatCore, 7 InterpolantComputations, 1 PerfectInterpolantSequences, 8/48 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 62]: Loop Invariant [2022-11-20 12:29:51,743 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] [2022-11-20 12:29:51,744 WARN L421 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_main_~var_90_arg_1~0#1,QUANTIFIED] Derived loop invariant: ((((((((((((((1bv8 == mask_SORT_1 && var_41 == 5bv8) && state_5 == 0bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) && var_13 == state_14) || (((((((((((((((1bv8 == mask_SORT_1 && !(cond == 0bv32)) && (!(~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(state_5), ~zero_extendFrom8To32(mask_SORT_1))[7:0]) == var_9) || ~zero_extendFrom8To32(~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(state_14))[7:0]) == var_9)) && var_41 == 5bv8) && 6bv8 == var_38) && 1bv8 == var_31) && 4bv8 == var_35) && (\exists ULTIMATE.start_main_~var_90_arg_1~0#1 : bv8 :: ~bvand32(~zero_extendFrom8To32(mask_SORT_12), ~zero_extendFrom8To32(~zero_extendFrom8To32(ULTIMATE.start_main_~var_90_arg_1~0#1)[7:0]))[7:0] == state_14)) && 2bv8 == var_28) && var_13 == 0bv8) && 1bv8 == var_21) && var_45 == 3bv8) && mask_SORT_47 == 3bv8) && var_4 == 0bv8) && 7bv8 == mask_SORT_12) && var_9 == 1bv32) RESULT: Ultimate proved your program to be correct! [2022-11-20 12:29:51,853 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a39edea6-827c-4486-8df5-f5fc74a356ae/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE