./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.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_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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_de6cb679-237e-4510-b64c-42d6a6ada831/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 8f9abb075f8a5d1203af466994252ff63c7e0d116def0b0783c5a3556a7ec7f7 --- 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 12:40:53,281 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:40:53,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:40:53,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:40:53,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:40:53,326 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:40:53,328 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:40:53,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:40:53,335 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:40:53,337 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:40:53,339 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:40:53,341 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:40:53,343 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:40:53,347 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:40:53,349 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:40:53,352 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:40:53,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:40:53,363 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:40:53,365 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:40:53,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:40:53,372 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:40:53,373 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:40:53,375 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:40:53,376 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:40:53,380 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:40:53,380 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:40:53,381 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:40:53,382 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:40:53,382 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:40:53,384 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:40:53,384 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:40:53,385 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:40:53,386 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:40:53,387 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:40:53,388 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:40:53,388 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:40:53,389 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:40:53,390 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:40:53,390 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:40:53,391 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:40:53,392 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:40:53,393 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-20 12:40:53,418 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:40:53,418 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:40:53,419 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:40:53,419 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:40:53,420 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:40:53,420 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:40:53,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:40:53,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:40:53,422 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:40:53,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:40:53,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 12:40:53,423 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:40:53,423 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:40:53,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:40:53,424 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:40:53,424 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:40:53,424 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:40:53,425 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:40:53,425 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:40:53,426 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:40:53,426 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:40:53,426 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:40:53,427 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:40:53,427 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:40:53,427 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:40:53,427 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 12:40:53,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 12:40:53,428 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:40:53,428 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:40:53,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:40:53,429 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_de6cb679-237e-4510-b64c-42d6a6ada831/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f9abb075f8a5d1203af466994252ff63c7e0d116def0b0783c5a3556a7ec7f7 [2022-11-20 12:40:53,728 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:40:53,759 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:40:53,763 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:40:53,767 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:40:53,768 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:40:53,770 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c [2022-11-20 12:40:57,162 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:40:57,464 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:40:57,464 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c [2022-11-20 12:40:57,490 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data/a168596fd/66bb773750c840388ab2f6fd22d7d8b3/FLAG4c98b1581 [2022-11-20 12:40:57,510 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data/a168596fd/66bb773750c840388ab2f6fd22d7d8b3 [2022-11-20 12:40:57,513 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:40:57,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:40:57,517 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:57,517 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:40:57,521 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:40:57,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:57" (1/1) ... [2022-11-20 12:40:57,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@222f72c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:57, skipping insertion in model container [2022-11-20 12:40:57,524 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:40:57" (1/1) ... [2022-11-20 12:40:57,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:40:57,597 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:40:57,782 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_de6cb679-237e-4510-b64c-42d6a6ada831/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c[1107,1120] [2022-11-20 12:40:58,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:58,048 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:40:58,060 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_de6cb679-237e-4510-b64c-42d6a6ada831/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c[1107,1120] [2022-11-20 12:40:58,288 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:40:58,304 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:40:58,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58 WrapperNode [2022-11-20 12:40:58,307 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:40:58,309 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:58,309 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:40:58,309 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:40:58,318 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,348 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,474 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1045 [2022-11-20 12:40:58,475 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:40:58,476 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:40:58,478 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:40:58,478 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:40:58,489 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,514 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,584 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,590 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,596 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:40:58,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:40:58,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:40:58,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:40:58,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (1/1) ... [2022-11-20 12:40:58,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:40:58,657 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:40:58,694 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:40:58,712 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:40:58,754 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:40:58,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:40:59,198 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:40:59,201 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:41:19,064 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:41:19,079 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:41:19,080 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:41:19,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:19 BoogieIcfgContainer [2022-11-20 12:41:19,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:41:19,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:41:19,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:41:19,091 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:41:19,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:40:57" (1/3) ... [2022-11-20 12:41:19,094 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a740dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:19, skipping insertion in model container [2022-11-20 12:41:19,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:40:58" (2/3) ... [2022-11-20 12:41:19,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a740dcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:19, skipping insertion in model container [2022-11-20 12:41:19,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:19" (3/3) ... [2022-11-20 12:41:19,107 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p15.c [2022-11-20 12:41:19,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:41:19,131 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:41:19,190 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:41:19,197 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;@665c3e8a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:41:19,197 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:41:19,202 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 12:41:19,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 12:41:19,208 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:19,209 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 12:41:19,210 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:19,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:19,215 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 12:41:19,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 12:41:19,223 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610724439] [2022-11-20 12:41:19,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:19,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 12:41:19,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:41:19,682 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 12:41:19,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 12:41:19,926 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 12:41:19,939 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 12:41:19,940 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 12:41:19,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 12:41:19,949 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 12:41:19,954 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 12:41:19,988 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-20 12:41:20,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 12:41:20 BoogieIcfgContainer [2022-11-20 12:41:20,006 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 12:41:20,007 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 12:41:20,010 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 12:41:20,010 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 12:41:20,011 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:19" (3/4) ... [2022-11-20 12:41:20,017 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 12:41:20,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 12:41:20,023 INFO L158 Benchmark]: Toolchain (without parser) took 22507.28ms. Allocated memory was 155.2MB in the beginning and 738.2MB in the end (delta: 583.0MB). Free memory was 110.2MB in the beginning and 393.1MB in the end (delta: -282.8MB). Peak memory consumption was 303.4MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,026 INFO L158 Benchmark]: CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 12:41:20,027 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.85ms. Allocated memory is still 155.2MB. Free memory was 110.2MB in the beginning and 74.0MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,028 INFO L158 Benchmark]: Boogie Procedure Inliner took 166.75ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 74.0MB in the beginning and 162.6MB in the end (delta: -88.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,033 INFO L158 Benchmark]: Boogie Preprocessor took 145.04ms. Allocated memory is still 199.2MB. Free memory was 162.6MB in the beginning and 156.4MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,034 INFO L158 Benchmark]: RCFGBuilder took 20462.30ms. Allocated memory was 199.2MB in the beginning and 738.2MB in the end (delta: 539.0MB). Free memory was 156.4MB in the beginning and 439.2MB in the end (delta: -282.8MB). Peak memory consumption was 444.6MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,035 INFO L158 Benchmark]: TraceAbstraction took 919.62ms. Allocated memory is still 738.2MB. Free memory was 439.2MB in the beginning and 393.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,035 INFO L158 Benchmark]: Witness Printer took 14.02ms. Allocated memory is still 738.2MB. Free memory was 393.1MB in the beginning and 393.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 12:41:20,039 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34ms. Allocated memory is still 155.2MB. Free memory is still 98.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.85ms. Allocated memory is still 155.2MB. Free memory was 110.2MB in the beginning and 74.0MB in the end (delta: 36.2MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 166.75ms. Allocated memory was 155.2MB in the beginning and 199.2MB in the end (delta: 44.0MB). Free memory was 74.0MB in the beginning and 162.6MB in the end (delta: -88.6MB). Peak memory consumption was 18.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 145.04ms. Allocated memory is still 199.2MB. Free memory was 162.6MB in the beginning and 156.4MB in the end (delta: 6.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 20462.30ms. Allocated memory was 199.2MB in the beginning and 738.2MB in the end (delta: 539.0MB). Free memory was 156.4MB in the beginning and 439.2MB in the end (delta: -282.8MB). Peak memory consumption was 444.6MB. Max. memory is 16.1GB. * TraceAbstraction took 919.62ms. Allocated memory is still 738.2MB. Free memory was 439.2MB in the beginning and 393.1MB in the end (delta: 46.1MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Witness Printer took 14.02ms. Allocated memory is still 738.2MB. Free memory was 393.1MB in the beginning and 393.1MB in the end (delta: 2.0kB). Peak memory consumption was 2.1MB. 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 168, overapproximation of bitwiseOr at line 174, overapproximation of bitwiseAnd at line 151. Possible FailurePath: [L25] const SORT_1 mask_SORT_1 = (SORT_1)-1 >> (sizeof(SORT_1) * 8 - 1); [L26] const SORT_1 msb_SORT_1 = (SORT_1)1 << (1 - 1); [L28] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 5); [L29] const SORT_3 msb_SORT_3 = (SORT_3)1 << (5 - 1); [L31] const SORT_5 mask_SORT_5 = (SORT_5)-1 >> (sizeof(SORT_5) * 8 - 12); [L32] const SORT_5 msb_SORT_5 = (SORT_5)1 << (12 - 1); [L34] const SORT_7 mask_SORT_7 = (SORT_7)-1 >> (sizeof(SORT_7) * 8 - 3); [L35] const SORT_7 msb_SORT_7 = (SORT_7)1 << (3 - 1); [L37] const SORT_20 mask_SORT_20 = (SORT_20)-1 >> (sizeof(SORT_20) * 8 - 2); [L38] const SORT_20 msb_SORT_20 = (SORT_20)1 << (2 - 1); [L40] const SORT_85 mask_SORT_85 = (SORT_85)-1 >> (sizeof(SORT_85) * 8 - 4); [L41] const SORT_85 msb_SORT_85 = (SORT_85)1 << (4 - 1); [L43] const SORT_150 mask_SORT_150 = (SORT_150)-1 >> (sizeof(SORT_150) * 8 - 32); [L44] const SORT_150 msb_SORT_150 = (SORT_150)1 << (32 - 1); [L46] const SORT_7 var_8 = 0; [L47] const SORT_7 var_11 = 4; [L48] const SORT_5 var_13 = 0; [L49] const SORT_7 var_17 = 2; [L50] const SORT_20 var_22 = 0; [L51] const SORT_3 var_26 = 0; [L52] const SORT_1 var_35 = 1; [L53] const SORT_1 var_43 = 0; [L54] const SORT_7 var_60 = 1; [L55] const SORT_7 var_66 = 5; [L56] const SORT_7 var_70 = 3; [L57] const SORT_7 var_102 = 7; [L58] const SORT_7 var_107 = 6; [L59] const SORT_150 var_152 = 0; [L60] const SORT_3 var_167 = 2; [L61] const SORT_3 var_184 = 31; [L63] SORT_1 input_2; [L64] SORT_3 input_4; [L65] SORT_5 input_6; [L66] SORT_3 input_173; [L67] SORT_3 input_174; [L68] SORT_3 input_175; [L69] SORT_3 input_183; [L70] SORT_3 input_193; [L71] SORT_3 input_194; [L72] SORT_3 input_195; [L73] SORT_3 input_198; [L74] SORT_3 input_217; [L75] SORT_3 input_218; [L76] SORT_3 input_219; [L77] SORT_3 input_222; [L78] SORT_3 input_224; [L79] SORT_20 input_238; [L80] SORT_20 input_239; [L81] SORT_20 input_240; [L83] SORT_7 state_9 = __VERIFIER_nondet_uchar() & mask_SORT_7; [L84] SORT_5 state_14 = __VERIFIER_nondet_ushort() & mask_SORT_5; [L85] SORT_3 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L86] SORT_3 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L87] SORT_3 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L88] SORT_3 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L89] SORT_1 state_44 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L90] SORT_3 state_46 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L91] SORT_3 state_48 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L92] SORT_3 state_50 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L93] SORT_3 state_52 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L94] SORT_3 state_54 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L95] SORT_3 state_56 = __VERIFIER_nondet_uchar() & mask_SORT_3; [L97] SORT_7 init_10_arg_1 = var_8; [L98] state_9 = init_10_arg_1 [L99] SORT_5 init_15_arg_1 = var_13; [L100] state_14 = init_15_arg_1 [L101] SORT_3 init_28_arg_1 = var_26; [L102] state_27 = init_28_arg_1 [L103] SORT_3 init_30_arg_1 = var_26; [L104] state_29 = init_30_arg_1 [L105] SORT_3 init_40_arg_1 = var_26; [L106] state_39 = init_40_arg_1 [L107] SORT_3 init_42_arg_1 = var_26; [L108] state_41 = init_42_arg_1 [L109] SORT_1 init_45_arg_1 = var_43; [L110] state_44 = init_45_arg_1 [L111] SORT_3 init_47_arg_1 = var_26; [L112] state_46 = init_47_arg_1 [L113] SORT_3 init_49_arg_1 = var_26; [L114] state_48 = init_49_arg_1 [L115] SORT_3 init_51_arg_1 = var_26; [L116] state_50 = init_51_arg_1 [L117] SORT_3 init_53_arg_1 = var_26; [L118] state_52 = init_53_arg_1 [L119] SORT_3 init_55_arg_1 = var_26; [L120] state_54 = init_55_arg_1 [L121] SORT_3 init_57_arg_1 = var_26; [L122] state_56 = init_57_arg_1 VAL [init_10_arg_1=0, init_15_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_45_arg_1=0, init_47_arg_1=0, init_49_arg_1=0, init_51_arg_1=0, init_53_arg_1=0, init_55_arg_1=0, init_57_arg_1=0, mask_SORT_1=1, mask_SORT_150=4294967295, mask_SORT_20=3, mask_SORT_3=31, mask_SORT_5=4095, mask_SORT_7=7, mask_SORT_85=15, msb_SORT_1=1, msb_SORT_150=2147483648, msb_SORT_20=2, msb_SORT_3=16, msb_SORT_5=2048, msb_SORT_7=4, msb_SORT_85=8, state_14=0, state_27=0, state_29=0, state_39=0, state_41=0, state_44=0, state_46=0, state_48=0, state_50=0, state_52=0, state_54=0, state_56=0, state_9=0, var_102=7, var_107=6, var_11=4, var_13=0, var_152=0, var_167=2, var_17=2, var_184=31, var_22=0, var_26=0, var_35=1, var_43=0, var_60=1, var_66=5, var_70=3, var_8=0] [L125] input_2 = __VERIFIER_nondet_uchar() [L126] input_4 = __VERIFIER_nondet_uchar() [L127] input_6 = __VERIFIER_nondet_ushort() [L128] input_173 = __VERIFIER_nondet_uchar() [L129] input_174 = __VERIFIER_nondet_uchar() [L130] input_175 = __VERIFIER_nondet_uchar() [L131] input_183 = __VERIFIER_nondet_uchar() [L132] input_193 = __VERIFIER_nondet_uchar() [L133] input_194 = __VERIFIER_nondet_uchar() [L134] input_195 = __VERIFIER_nondet_uchar() [L135] input_198 = __VERIFIER_nondet_uchar() [L136] input_217 = __VERIFIER_nondet_uchar() [L137] input_218 = __VERIFIER_nondet_uchar() [L138] input_219 = __VERIFIER_nondet_uchar() [L139] input_222 = __VERIFIER_nondet_uchar() [L140] input_224 = __VERIFIER_nondet_uchar() [L141] input_238 = __VERIFIER_nondet_uchar() [L142] input_239 = __VERIFIER_nondet_uchar() [L143] input_240 = __VERIFIER_nondet_uchar() [L146] SORT_7 var_12_arg_0 = state_9; [L147] SORT_7 var_12_arg_1 = var_11; [L148] SORT_1 var_12 = var_12_arg_0 == var_12_arg_1; [L149] SORT_5 var_16_arg_0 = state_14; [L150] SORT_7 var_16 = var_16_arg_0 >> 9; [L151] var_16 = var_16 & mask_SORT_7 [L152] SORT_7 var_18_arg_0 = var_16; [L153] SORT_7 var_18_arg_1 = var_17; [L154] SORT_1 var_18 = var_18_arg_0 == var_18_arg_1; [L155] SORT_1 var_19_arg_0 = var_12; [L156] SORT_1 var_19_arg_1 = var_18; [L157] SORT_1 var_19 = var_19_arg_0 & var_19_arg_1; [L158] SORT_5 var_21_arg_0 = state_14; [L159] SORT_20 var_21 = var_21_arg_0 >> 7; [L160] var_21 = var_21 & mask_SORT_20 [L161] SORT_20 var_23_arg_0 = var_21; [L162] SORT_20 var_23_arg_1 = var_22; [L163] SORT_1 var_23 = var_23_arg_0 == var_23_arg_1; [L164] SORT_1 var_24_arg_0 = var_19; [L165] SORT_1 var_24_arg_1 = var_23; [L166] SORT_1 var_24 = var_24_arg_0 & var_24_arg_1; [L167] SORT_1 var_25_arg_0 = var_24; [L168] SORT_1 var_25 = ~var_25_arg_0; [L169] SORT_3 var_31_arg_0 = state_27; [L170] SORT_3 var_31_arg_1 = state_29; [L171] SORT_1 var_31 = var_31_arg_0 == var_31_arg_1; [L172] SORT_1 var_32_arg_0 = var_25; [L173] SORT_1 var_32_arg_1 = var_31; [L174] SORT_1 var_32 = var_32_arg_0 | var_32_arg_1; [L175] SORT_1 var_36_arg_0 = var_32; [L176] SORT_1 var_36 = ~var_36_arg_0; [L177] SORT_1 var_37_arg_0 = var_35; [L178] SORT_1 var_37_arg_1 = var_36; [L179] SORT_1 var_37 = var_37_arg_0 & var_37_arg_1; [L180] var_37 = var_37 & mask_SORT_1 [L181] SORT_1 bad_38_arg_0 = var_37; [L182] CALL __VERIFIER_assert(!(bad_38_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: 0.8s, 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, 0.3s 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 12:41:20,083 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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_de6cb679-237e-4510-b64c-42d6a6ada831/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 8f9abb075f8a5d1203af466994252ff63c7e0d116def0b0783c5a3556a7ec7f7 --- 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 12:41:22,635 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 12:41:22,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 12:41:22,670 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 12:41:22,670 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 12:41:22,672 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 12:41:22,673 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 12:41:22,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 12:41:22,681 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 12:41:22,682 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 12:41:22,683 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 12:41:22,684 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 12:41:22,685 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 12:41:22,686 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 12:41:22,687 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 12:41:22,688 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 12:41:22,689 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 12:41:22,690 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 12:41:22,692 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 12:41:22,694 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 12:41:22,702 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 12:41:22,708 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 12:41:22,711 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 12:41:22,712 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 12:41:22,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 12:41:22,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 12:41:22,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 12:41:22,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 12:41:22,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 12:41:22,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 12:41:22,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 12:41:22,724 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 12:41:22,725 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 12:41:22,726 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 12:41:22,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 12:41:22,735 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 12:41:22,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 12:41:22,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 12:41:22,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 12:41:22,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 12:41:22,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 12:41:22,739 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-20 12:41:22,774 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 12:41:22,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 12:41:22,775 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 12:41:22,775 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 12:41:22,776 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 12:41:22,776 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 12:41:22,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 12:41:22,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 12:41:22,777 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 12:41:22,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 12:41:22,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 12:41:22,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 12:41:22,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 12:41:22,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 12:41:22,779 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 12:41:22,780 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 12:41:22,780 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 12:41:22,780 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 12:41:22,781 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 12:41:22,781 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 12:41:22,781 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 12:41:22,782 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 12:41:22,782 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 12:41:22,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:41:22,783 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 12:41:22,783 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 12:41:22,783 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 12:41:22,783 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 12:41:22,784 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 12:41:22,784 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 12:41:22,784 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 12:41:22,785 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 12:41:22,785 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 12:41:22,785 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_de6cb679-237e-4510-b64c-42d6a6ada831/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8f9abb075f8a5d1203af466994252ff63c7e0d116def0b0783c5a3556a7ec7f7 [2022-11-20 12:41:23,171 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 12:41:23,201 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 12:41:23,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 12:41:23,205 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 12:41:23,205 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 12:41:23,207 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c [2022-11-20 12:41:26,523 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 12:41:26,869 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 12:41:26,869 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c [2022-11-20 12:41:26,886 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data/cb8322f31/a25ee38627964f97bcb025afc71589b5/FLAG40a85a03a [2022-11-20 12:41:26,901 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/data/cb8322f31/a25ee38627964f97bcb025afc71589b5 [2022-11-20 12:41:26,903 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 12:41:26,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 12:41:26,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 12:41:26,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 12:41:26,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 12:41:26,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:41:26" (1/1) ... [2022-11-20 12:41:26,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c297dc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:26, skipping insertion in model container [2022-11-20 12:41:26,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 12:41:26" (1/1) ... [2022-11-20 12:41:26,920 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 12:41:26,969 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 12:41:27,195 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_de6cb679-237e-4510-b64c-42d6a6ada831/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c[1107,1120] [2022-11-20 12:41:27,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:41:27,568 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 12:41:27,584 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_de6cb679-237e-4510-b64c-42d6a6ada831/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_vsaR_p15.c[1107,1120] [2022-11-20 12:41:27,766 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 12:41:27,781 INFO L208 MainTranslator]: Completed translation [2022-11-20 12:41:27,782 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27 WrapperNode [2022-11-20 12:41:27,782 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 12:41:27,783 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 12:41:27,784 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 12:41:27,784 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 12:41:27,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,841 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,942 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1045 [2022-11-20 12:41:27,942 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 12:41:27,943 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 12:41:27,943 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 12:41:27,943 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 12:41:27,953 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,953 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,959 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,960 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,983 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,988 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,993 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:27,998 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:28,007 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 12:41:28,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 12:41:28,008 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 12:41:28,008 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 12:41:28,009 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (1/1) ... [2022-11-20 12:41:28,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 12:41:28,027 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 12:41:28,041 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 12:41:28,062 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 12:41:28,113 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 12:41:28,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 12:41:28,427 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 12:41:28,430 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 12:41:29,916 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 12:41:29,923 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 12:41:29,924 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-20 12:41:29,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:29 BoogieIcfgContainer [2022-11-20 12:41:29,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 12:41:29,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 12:41:29,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 12:41:29,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 12:41:29,933 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 12:41:26" (1/3) ... [2022-11-20 12:41:29,934 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7866eefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:29, skipping insertion in model container [2022-11-20 12:41:29,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 12:41:27" (2/3) ... [2022-11-20 12:41:29,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7866eefa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 12:41:29, skipping insertion in model container [2022-11-20 12:41:29,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 12:41:29" (3/3) ... [2022-11-20 12:41:29,937 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_vsaR_p15.c [2022-11-20 12:41:29,960 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 12:41:29,960 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 12:41:30,012 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 12:41:30,019 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;@635f2991, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 12:41:30,019 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 12:41:30,024 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 12:41:30,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 12:41:30,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:30,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 12:41:30,031 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:30,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:30,037 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-20 12:41:30,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:30,052 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1751028002] [2022-11-20 12:41:30,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:30,053 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 12:41:30,053 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:30,063 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:30,119 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:30,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:30,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 19 conjunts are in the unsatisfiable core [2022-11-20 12:41:30,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:30,632 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 12:41:30,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 12:41:30,634 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:30,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1751028002] [2022-11-20 12:41:30,635 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1751028002] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 12:41:30,635 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 12:41:30,635 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 12:41:30,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784380776] [2022-11-20 12:41:30,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 12:41:30,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 12:41:30,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:30,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 12:41:30,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 12:41:30,697 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 12:41:30,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:30,910 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-20 12:41:30,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 12:41:30,914 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 12:41:30,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:30,923 INFO L225 Difference]: With dead ends: 20 [2022-11-20 12:41:30,931 INFO L226 Difference]: Without dead ends: 11 [2022-11-20 12:41:30,943 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 12:41:30,947 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 4 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:30,949 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-20 12:41:30,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-20 12:41:30,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-20 12:41:30,983 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 12:41:30,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-20 12:41:30,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-20 12:41:30,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:30,987 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-20 12:41:30,987 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 12:41:30,988 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-20 12:41:30,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 12:41:30,988 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:30,988 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-20 12:41:31,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:31,202 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:31,203 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:31,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:31,204 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-20 12:41:31,208 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:31,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [850642651] [2022-11-20 12:41:31,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 12:41:31,209 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 12:41:31,210 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:31,212 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:31,247 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:31,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 12:41:31,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 970 conjuncts, 41 conjunts are in the unsatisfiable core [2022-11-20 12:41:31,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:32,110 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 12:41:32,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:41:33,131 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 12:41:33,132 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:33,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [850642651] [2022-11-20 12:41:33,132 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [850642651] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:41:33,132 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:41:33,133 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-20 12:41:33,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669735303] [2022-11-20 12:41:33,133 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:41:33,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-20 12:41:33,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:33,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-20 12:41:33,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2022-11-20 12:41:33,136 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 12:41:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:33,345 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-20 12:41:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 12:41:33,346 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 12:41:33,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:33,347 INFO L225 Difference]: With dead ends: 16 [2022-11-20 12:41:33,347 INFO L226 Difference]: Without dead ends: 14 [2022-11-20 12:41:33,348 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:41:33,349 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:33,350 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 19 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 8 Unchecked, 0.2s Time] [2022-11-20 12:41:33,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-20 12:41:33,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-20 12:41:33,354 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 12:41:33,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-20 12:41:33,355 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-20 12:41:33,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:33,356 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-20 12:41:33,356 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 12:41:33,356 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-20 12:41:33,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 12:41:33,357 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:33,357 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-20 12:41:33,382 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:33,576 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:33,576 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:33,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:33,577 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-20 12:41:33,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:33,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1019837371] [2022-11-20 12:41:33,580 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-20 12:41:33,580 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 12:41:33,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:33,581 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:33,603 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:34,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-20 12:41:34,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:41:34,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 47 conjunts are in the unsatisfiable core [2022-11-20 12:41:34,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:34,907 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 12:41:34,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:41:35,846 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 12:41:35,846 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 12:41:35,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1019837371] [2022-11-20 12:41:35,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1019837371] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-20 12:41:35,847 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-20 12:41:35,847 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2022-11-20 12:41:35,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098506342] [2022-11-20 12:41:35,848 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-20 12:41:35,848 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-11-20 12:41:35,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 12:41:35,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-11-20 12:41:35,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-11-20 12:41:35,850 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 12:41:36,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 12:41:36,430 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2022-11-20 12:41:36,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-11-20 12:41:36,431 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 12:41:36,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 12:41:36,431 INFO L225 Difference]: With dead ends: 21 [2022-11-20 12:41:36,432 INFO L226 Difference]: Without dead ends: 19 [2022-11-20 12:41:36,432 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-11-20 12:41:36,433 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 15 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 30 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-11-20 12:41:36,434 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 26 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 30 Unchecked, 0.3s Time] [2022-11-20 12:41:36,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-20 12:41:36,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 18. [2022-11-20 12:41:36,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.0588235294117647) internal successors, (18), 17 states have internal predecessors, (18), 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 12:41:36,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2022-11-20 12:41:36,440 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2022-11-20 12:41:36,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 12:41:36,441 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2022-11-20 12:41:36,441 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 12:41:36,441 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2022-11-20 12:41:36,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-20 12:41:36,442 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 12:41:36,442 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 1, 1, 1, 1] [2022-11-20 12:41:36,471 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:36,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:36,643 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 12:41:36,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 12:41:36,643 INFO L85 PathProgramCache]: Analyzing trace with hash -1250702327, now seen corresponding path program 3 times [2022-11-20 12:41:36,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 12:41:36,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [635627221] [2022-11-20 12:41:36,649 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-20 12:41:36,649 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 12:41:36,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 12:41:36,680 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:36,721 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de6cb679-237e-4510-b64c-42d6a6ada831/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 12:41:38,352 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-11-20 12:41:38,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-20 12:41:38,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 3535 conjuncts, 347 conjunts are in the unsatisfiable core [2022-11-20 12:41:38,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 12:41:57,110 WARN L233 SmtUtils]: Spent 5.52s on a formula simplification. DAG size of input: 344 DAG size of output: 204 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:42:09,631 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 12:42:09,632 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-20 12:45:34,962 WARN L233 SmtUtils]: Spent 14.66s on a formula simplification. DAG size of input: 880 DAG size of output: 304 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-20 12:47:14,091 WARN L233 SmtUtils]: Spent 1.02m on a formula simplification. DAG size of input: 599 DAG size of output: 343 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate)