./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b5237d83 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a --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 eb6c73596f57c74cf3403c0ac21bba501590ba8eb1b9f6361a760495ca1fcd14 --- 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-b5237d8 [2022-11-21 17:26:49,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:26:49,415 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:26:49,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:26:49,459 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:26:49,463 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:26:49,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:26:49,469 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:26:49,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:26:49,476 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:26:49,478 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:26:49,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:26:49,480 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:26:49,483 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:26:49,485 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:26:49,487 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:26:49,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:26:49,490 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:26:49,491 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:26:49,498 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:26:49,500 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:26:49,502 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:26:49,504 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:26:49,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:26:49,514 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:26:49,516 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:26:49,516 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:26:49,518 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:26:49,519 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:26:49,520 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:26:49,520 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:26:49,521 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:26:49,523 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:26:49,525 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:26:49,526 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:26:49,527 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:26:49,527 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:26:49,528 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:26:49,528 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:26:49,530 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:26:49,531 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:26:49,532 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-11-21 17:26:49,573 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:26:49,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:26:49,574 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:26:49,574 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:26:49,575 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:26:49,576 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:26:49,577 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:26:49,577 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:26:49,577 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:26:49,578 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:26:49,579 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 17:26:49,579 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:26:49,579 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:26:49,580 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:26:49,580 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:26:49,580 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:26:49,581 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:26:49,581 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:26:49,581 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:26:49,581 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:26:49,582 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:26:49,582 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:26:49,582 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:26:49,583 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:26:49,583 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:26:49,583 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 17:26:49,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 17:26:49,584 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:26:49,584 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:26:49,584 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:26:49,585 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6c73596f57c74cf3403c0ac21bba501590ba8eb1b9f6361a760495ca1fcd14 [2022-11-21 17:26:49,939 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:26:49,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:26:49,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:26:49,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:26:49,984 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:26:49,986 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c [2022-11-21 17:26:53,071 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:26:53,431 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:26:53,431 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c [2022-11-21 17:26:53,448 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data/9848bb046/621aba24c55d4bdc929dd8117f9a80e1/FLAG558e3bdfa [2022-11-21 17:26:53,466 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data/9848bb046/621aba24c55d4bdc929dd8117f9a80e1 [2022-11-21 17:26:53,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:26:53,471 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:26:53,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:26:53,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:26:53,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:26:53,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:26:53" (1/1) ... [2022-11-21 17:26:53,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cd8ad83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:53, skipping insertion in model container [2022-11-21 17:26:53,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:26:53" (1/1) ... [2022-11-21 17:26:53,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:26:53,556 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:26:53,771 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c[1014,1027] [2022-11-21 17:26:54,081 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:26:54,086 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:26:54,112 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c[1014,1027] [2022-11-21 17:26:54,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:26:54,280 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:26:54,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54 WrapperNode [2022-11-21 17:26:54,294 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:26:54,295 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:26:54,295 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:26:54,295 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:26:54,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,337 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,437 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1106 [2022-11-21 17:26:54,438 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:26:54,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:26:54,439 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:26:54,439 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:26:54,449 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,449 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,477 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,477 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,536 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,541 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,566 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,573 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,592 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:26:54,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:26:54,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:26:54,593 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:26:54,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (1/1) ... [2022-11-21 17:26:54,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:26:54,612 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:26:54,630 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:26:54,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:26:54,682 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:26:54,683 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:26:55,043 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:26:55,045 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:27:52,499 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:27:52,508 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:27:52,509 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:27:52,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:27:52 BoogieIcfgContainer [2022-11-21 17:27:52,511 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:27:52,517 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:27:52,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:27:52,521 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:27:52,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:26:53" (1/3) ... [2022-11-21 17:27:52,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71dc30db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:27:52, skipping insertion in model container [2022-11-21 17:27:52,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:26:54" (2/3) ... [2022-11-21 17:27:52,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71dc30db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:27:52, skipping insertion in model container [2022-11-21 17:27:52,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:27:52" (3/3) ... [2022-11-21 17:27:52,528 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.1.prop1-func-interl.c [2022-11-21 17:27:52,555 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:27:52,555 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:27:52,623 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:27:52,631 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;@1db1b389, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:27:52,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:27:52,637 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) [2022-11-21 17:27:52,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:27:52,643 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:27:52,644 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:27:52,644 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:27:52,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:27:52,650 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:27:52,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 17:27:52,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671471895] [2022-11-21 17:27:52,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:27:52,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 17:27:52,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:27:52,961 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 17:27:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 17:27:53,187 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 17:27:53,193 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 17:27:53,194 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-21 17:27:53,196 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 17:27:53,204 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-21 17:27:53,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 17:27:53,234 WARN L320 BoogieBacktranslator]: Removing null node from list of ATEs: ATE program state null [2022-11-21 17:27:53,244 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 05:27:53 BoogieIcfgContainer [2022-11-21 17:27:53,244 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 17:27:53,246 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 17:27:53,246 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 17:27:53,247 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 17:27:53,247 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:27:52" (3/4) ... [2022-11-21 17:27:53,252 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 17:27:53,252 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 17:27:53,253 INFO L158 Benchmark]: Toolchain (without parser) took 59782.00ms. Allocated memory was 195.0MB in the beginning and 851.4MB in the end (delta: 656.4MB). Free memory was 161.0MB in the beginning and 491.1MB in the end (delta: -330.1MB). Peak memory consumption was 328.4MB. Max. memory is 16.1GB. [2022-11-21 17:27:53,254 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 75.4MB in the beginning and 75.3MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:27:53,254 INFO L158 Benchmark]: CACSL2BoogieTranslator took 820.35ms. Allocated memory is still 195.0MB. Free memory was 161.0MB in the beginning and 122.3MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-11-21 17:27:53,255 INFO L158 Benchmark]: Boogie Procedure Inliner took 143.04ms. Allocated memory is still 195.0MB. Free memory was 122.3MB in the beginning and 107.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-21 17:27:53,256 INFO L158 Benchmark]: Boogie Preprocessor took 153.37ms. Allocated memory is still 195.0MB. Free memory was 107.6MB in the beginning and 100.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 17:27:53,257 INFO L158 Benchmark]: RCFGBuilder took 57919.00ms. Allocated memory was 195.0MB in the beginning and 851.4MB in the end (delta: 656.4MB). Free memory was 100.2MB in the beginning and 529.9MB in the end (delta: -429.6MB). Peak memory consumption was 471.4MB. Max. memory is 16.1GB. [2022-11-21 17:27:53,257 INFO L158 Benchmark]: TraceAbstraction took 727.67ms. Allocated memory is still 851.4MB. Free memory was 528.8MB in the beginning and 491.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-21 17:27:53,258 INFO L158 Benchmark]: Witness Printer took 5.89ms. Allocated memory is still 851.4MB. Free memory is still 491.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 17:27:53,261 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 134.2MB. Free memory was 75.4MB in the beginning and 75.3MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 820.35ms. Allocated memory is still 195.0MB. Free memory was 161.0MB in the beginning and 122.3MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 143.04ms. Allocated memory is still 195.0MB. Free memory was 122.3MB in the beginning and 107.6MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Preprocessor took 153.37ms. Allocated memory is still 195.0MB. Free memory was 107.6MB in the beginning and 100.2MB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 57919.00ms. Allocated memory was 195.0MB in the beginning and 851.4MB in the end (delta: 656.4MB). Free memory was 100.2MB in the beginning and 529.9MB in the end (delta: -429.6MB). Peak memory consumption was 471.4MB. Max. memory is 16.1GB. * TraceAbstraction took 727.67ms. Allocated memory is still 851.4MB. Free memory was 528.8MB in the beginning and 491.1MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Witness Printer took 5.89ms. Allocated memory is still 851.4MB. Free memory is still 491.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 20]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseComplement at line 182, overapproximation of bitwiseAnd at line 127. 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_2 mask_SORT_2 = (SORT_2)-1 >> (sizeof(SORT_2) * 8 - 8); [L29] const SORT_2 msb_SORT_2 = (SORT_2)1 << (8 - 1); [L31] const SORT_3 mask_SORT_3 = (SORT_3)-1 >> (sizeof(SORT_3) * 8 - 24); [L32] const SORT_3 msb_SORT_3 = (SORT_3)1 << (24 - 1); [L34] const SORT_4 mask_SORT_4 = (SORT_4)-1 >> (sizeof(SORT_4) * 8 - 32); [L35] const SORT_4 msb_SORT_4 = (SORT_4)1 << (32 - 1); [L37] const SORT_2 var_5 = 0; [L38] const SORT_1 var_14 = 0; [L39] const SORT_4 var_43 = 1; [L40] const SORT_4 var_44 = 0; [L41] const SORT_2 var_54 = 0; [L42] const SORT_2 var_56 = 3; [L43] const SORT_2 var_59 = 2; [L44] const SORT_2 var_62 = 1; [L45] const SORT_2 var_70 = 255; [L46] const SORT_3 var_74 = 0; [L47] const SORT_4 var_78 = 255; [L49] SORT_1 input_53; [L50] SORT_1 input_55; [L51] SORT_1 input_57; [L52] SORT_1 input_58; [L53] SORT_1 input_60; [L54] SORT_1 input_61; [L55] SORT_1 input_71; [L56] SORT_1 input_72; [L57] SORT_1 input_73; [L58] SORT_1 input_90; [L59] SORT_1 input_91; [L60] SORT_1 input_106; [L61] SORT_1 input_107; [L62] SORT_1 input_124; [L63] SORT_1 input_132; [L64] SORT_1 input_140; [L65] SORT_1 input_148; [L66] SORT_1 input_156; [L67] SORT_1 input_164; [L69] SORT_2 state_6 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L70] SORT_2 state_8 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L71] SORT_2 state_10 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L72] SORT_2 state_12 = __VERIFIER_nondet_uchar() & mask_SORT_2; [L73] SORT_1 state_15 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L74] SORT_1 state_17 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L75] SORT_1 state_19 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L76] SORT_1 state_21 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L77] SORT_1 state_23 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L78] SORT_1 state_25 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L79] SORT_1 state_27 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L80] SORT_1 state_29 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L81] SORT_1 state_31 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L82] SORT_1 state_33 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L83] SORT_1 state_35 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L84] SORT_1 state_37 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L85] SORT_1 state_39 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L86] SORT_1 state_41 = __VERIFIER_nondet_uchar() & mask_SORT_1; [L88] SORT_2 init_7_arg_1 = var_5; [L89] state_6 = init_7_arg_1 [L90] SORT_2 init_9_arg_1 = var_5; [L91] state_8 = init_9_arg_1 [L92] SORT_2 init_11_arg_1 = var_5; [L93] state_10 = init_11_arg_1 [L94] SORT_2 init_13_arg_1 = var_5; [L95] state_12 = init_13_arg_1 [L96] SORT_1 init_16_arg_1 = var_14; [L97] state_15 = init_16_arg_1 [L98] SORT_1 init_18_arg_1 = var_14; [L99] state_17 = init_18_arg_1 [L100] SORT_1 init_20_arg_1 = var_14; [L101] state_19 = init_20_arg_1 [L102] SORT_1 init_22_arg_1 = var_14; [L103] state_21 = init_22_arg_1 [L104] SORT_1 init_24_arg_1 = var_14; [L105] state_23 = init_24_arg_1 [L106] SORT_1 init_26_arg_1 = var_14; [L107] state_25 = init_26_arg_1 [L108] SORT_1 init_28_arg_1 = var_14; [L109] state_27 = init_28_arg_1 [L110] SORT_1 init_30_arg_1 = var_14; [L111] state_29 = init_30_arg_1 [L112] SORT_1 init_32_arg_1 = var_14; [L113] state_31 = init_32_arg_1 [L114] SORT_1 init_34_arg_1 = var_14; [L115] state_33 = init_34_arg_1 [L116] SORT_1 init_36_arg_1 = var_14; [L117] state_35 = init_36_arg_1 [L118] SORT_1 init_38_arg_1 = var_14; [L119] state_37 = init_38_arg_1 [L120] SORT_1 init_40_arg_1 = var_14; [L121] state_39 = init_40_arg_1 [L122] SORT_1 init_42_arg_1 = var_14; [L123] state_41 = init_42_arg_1 VAL [init_11_arg_1=0, init_13_arg_1=0, init_16_arg_1=0, init_18_arg_1=0, init_20_arg_1=0, init_22_arg_1=0, init_24_arg_1=0, init_26_arg_1=0, init_28_arg_1=0, init_30_arg_1=0, init_32_arg_1=0, init_34_arg_1=0, init_36_arg_1=0, init_38_arg_1=0, init_40_arg_1=0, init_42_arg_1=0, init_7_arg_1=0, init_9_arg_1=0, mask_SORT_1=1, mask_SORT_2=255, mask_SORT_3=4294967295, mask_SORT_4=4294967295, msb_SORT_1=1, msb_SORT_2=128, msb_SORT_3=8388608, msb_SORT_4=2147483648, state_10=0, state_12=0, state_15=0, state_17=0, state_19=0, state_21=0, state_23=0, state_25=0, state_27=0, state_29=0, state_31=0, state_33=0, state_35=0, state_37=0, state_39=0, state_41=0, state_6=0, state_8=0, var_14=0, var_43=1, var_44=0, var_5=0, var_54=0, var_56=3, var_59=2, var_62=1, var_70=255, var_74=0, var_78=255] [L126] input_53 = __VERIFIER_nondet_uchar() [L127] input_53 = input_53 & mask_SORT_1 [L128] input_55 = __VERIFIER_nondet_uchar() [L129] input_55 = input_55 & mask_SORT_1 [L130] input_57 = __VERIFIER_nondet_uchar() [L131] input_57 = input_57 & mask_SORT_1 [L132] input_58 = __VERIFIER_nondet_uchar() [L133] input_58 = input_58 & mask_SORT_1 [L134] input_60 = __VERIFIER_nondet_uchar() [L135] input_60 = input_60 & mask_SORT_1 [L136] input_61 = __VERIFIER_nondet_uchar() [L137] input_61 = input_61 & mask_SORT_1 [L138] input_71 = __VERIFIER_nondet_uchar() [L139] input_71 = input_71 & mask_SORT_1 [L140] input_72 = __VERIFIER_nondet_uchar() [L141] input_72 = input_72 & mask_SORT_1 [L142] input_73 = __VERIFIER_nondet_uchar() [L143] input_73 = input_73 & mask_SORT_1 [L144] input_90 = __VERIFIER_nondet_uchar() [L145] input_90 = input_90 & mask_SORT_1 [L146] input_91 = __VERIFIER_nondet_uchar() [L147] input_91 = input_91 & mask_SORT_1 [L148] input_106 = __VERIFIER_nondet_uchar() [L149] input_106 = input_106 & mask_SORT_1 [L150] input_107 = __VERIFIER_nondet_uchar() [L151] input_107 = input_107 & mask_SORT_1 [L152] input_124 = __VERIFIER_nondet_uchar() [L153] input_132 = __VERIFIER_nondet_uchar() [L154] input_140 = __VERIFIER_nondet_uchar() [L155] input_148 = __VERIFIER_nondet_uchar() [L156] input_156 = __VERIFIER_nondet_uchar() [L157] input_164 = __VERIFIER_nondet_uchar() [L160] SORT_1 var_45_arg_0 = state_23; [L161] SORT_4 var_45_arg_1 = var_43; [L162] SORT_4 var_45_arg_2 = var_44; [L163] SORT_4 var_45 = var_45_arg_0 ? var_45_arg_1 : var_45_arg_2; [L164] SORT_1 var_46_arg_0 = state_31; [L165] SORT_4 var_46_arg_1 = var_43; [L166] SORT_4 var_46_arg_2 = var_44; [L167] SORT_4 var_46 = var_46_arg_0 ? var_46_arg_1 : var_46_arg_2; [L168] SORT_4 var_47_arg_0 = var_45; [L169] SORT_4 var_47_arg_1 = var_46; [L170] SORT_4 var_47 = var_47_arg_0 + var_47_arg_1; [L171] SORT_1 var_48_arg_0 = state_39; [L172] SORT_4 var_48_arg_1 = var_43; [L173] SORT_4 var_48_arg_2 = var_44; [L174] SORT_4 var_48 = var_48_arg_0 ? var_48_arg_1 : var_48_arg_2; [L175] SORT_4 var_49_arg_0 = var_47; [L176] SORT_4 var_49_arg_1 = var_48; [L177] SORT_4 var_49 = var_49_arg_0 + var_49_arg_1; [L178] var_49 = var_49 & mask_SORT_4 [L179] SORT_4 var_50_arg_0 = var_49; [L180] SORT_4 var_50_arg_1 = var_43; [L181] SORT_1 var_50 = var_50_arg_0 <= var_50_arg_1; [L182] SORT_1 var_51_arg_0 = ~state_41; [L183] var_51_arg_0 = var_51_arg_0 & mask_SORT_1 [L184] SORT_1 var_51_arg_1 = ~var_50; [L185] var_51_arg_1 = var_51_arg_1 & mask_SORT_1 [L186] SORT_1 var_51 = var_51_arg_0 & var_51_arg_1; [L187] var_51 = var_51 & mask_SORT_1 [L188] SORT_1 bad_52_arg_0 = var_51; [L189] CALL __VERIFIER_assert(!(bad_52_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: 0.6s, 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, 0.2s 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 [2022-11-21 17:27:53,311 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a --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 eb6c73596f57c74cf3403c0ac21bba501590ba8eb1b9f6361a760495ca1fcd14 --- 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-b5237d8 [2022-11-21 17:27:56,146 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 17:27:56,149 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 17:27:56,188 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 17:27:56,188 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 17:27:56,189 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 17:27:56,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 17:27:56,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 17:27:56,199 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 17:27:56,201 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 17:27:56,203 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 17:27:56,205 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 17:27:56,207 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 17:27:56,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 17:27:56,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 17:27:56,216 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 17:27:56,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 17:27:56,225 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 17:27:56,227 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 17:27:56,229 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 17:27:56,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 17:27:56,236 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 17:27:56,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 17:27:56,246 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 17:27:56,250 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 17:27:56,256 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 17:27:56,256 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 17:27:56,257 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 17:27:56,258 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 17:27:56,259 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 17:27:56,259 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 17:27:56,261 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 17:27:56,263 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 17:27:56,265 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 17:27:56,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 17:27:56,280 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 17:27:56,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 17:27:56,282 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 17:27:56,282 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 17:27:56,284 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 17:27:56,284 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 17:27:56,285 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-11-21 17:27:56,330 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 17:27:56,332 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 17:27:56,334 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 17:27:56,334 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 17:27:56,335 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 17:27:56,335 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 17:27:56,336 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 17:27:56,336 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 17:27:56,337 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 17:27:56,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 17:27:56,338 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 17:27:56,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-21 17:27:56,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 17:27:56,339 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-21 17:27:56,339 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 17:27:56,339 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 17:27:56,339 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 17:27:56,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-21 17:27:56,340 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 17:27:56,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-21 17:27:56,340 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 17:27:56,341 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 17:27:56,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 17:27:56,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:27:56,341 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 17:27:56,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 17:27:56,342 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-21 17:27:56,342 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 17:27:56,342 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 17:27:56,343 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-21 17:27:56,343 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-21 17:27:56,343 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-21 17:27:56,343 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 17:27:56,344 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6c73596f57c74cf3403c0ac21bba501590ba8eb1b9f6361a760495ca1fcd14 [2022-11-21 17:27:56,767 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 17:27:56,803 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 17:27:56,807 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 17:27:56,810 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 17:27:56,811 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 17:27:56,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c [2022-11-21 17:27:59,851 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 17:28:00,170 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 17:28:00,170 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c [2022-11-21 17:28:00,189 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data/4652acb18/4d680aeb671b4279940d903ffb4c187e/FLAGd21c77d82 [2022-11-21 17:28:00,205 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/data/4652acb18/4d680aeb671b4279940d903ffb4c187e [2022-11-21 17:28:00,207 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 17:28:00,209 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 17:28:00,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:00,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 17:28:00,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 17:28:00,216 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:28:00" (1/1) ... [2022-11-21 17:28:00,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153e7c43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:00, skipping insertion in model container [2022-11-21 17:28:00,218 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 05:28:00" (1/1) ... [2022-11-21 17:28:00,227 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 17:28:00,310 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 17:28:00,456 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c[1014,1027] [2022-11-21 17:28:00,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:00,718 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 17:28:00,729 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_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.fischer.1.prop1-func-interl.c[1014,1027] [2022-11-21 17:28:00,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 17:28:01,009 INFO L208 MainTranslator]: Completed translation [2022-11-21 17:28:01,009 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01 WrapperNode [2022-11-21 17:28:01,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 17:28:01,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:01,012 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 17:28:01,012 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 17:28:01,021 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,120 INFO L138 Inliner]: procedures = 11, calls = 3, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1106 [2022-11-21 17:28:01,120 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 17:28:01,121 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 17:28:01,121 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 17:28:01,122 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 17:28:01,131 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,132 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,193 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,197 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 17:28:01,212 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 17:28:01,212 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 17:28:01,212 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 17:28:01,213 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (1/1) ... [2022-11-21 17:28:01,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 17:28:01,244 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 17:28:01,269 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 17:28:01,290 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 17:28:01,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 17:28:01,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 17:28:01,697 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 17:28:01,700 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 17:28:03,373 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 17:28:03,382 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 17:28:03,382 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-21 17:28:03,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:03 BoogieIcfgContainer [2022-11-21 17:28:03,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 17:28:03,388 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 17:28:03,388 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 17:28:03,392 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 17:28:03,392 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 05:28:00" (1/3) ... [2022-11-21 17:28:03,393 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f345a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:03, skipping insertion in model container [2022-11-21 17:28:03,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 05:28:01" (2/3) ... [2022-11-21 17:28:03,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f345a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 05:28:03, skipping insertion in model container [2022-11-21 17:28:03,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 05:28:03" (3/3) ... [2022-11-21 17:28:03,397 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.fischer.1.prop1-func-interl.c [2022-11-21 17:28:03,418 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 17:28:03,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-21 17:28:03,486 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 17:28:03,495 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;@77127fe4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 17:28:03,496 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-21 17:28:03,501 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) [2022-11-21 17:28:03,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-21 17:28:03,510 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:28:03,511 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-21 17:28:03,511 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:28:03,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 28698761, now seen corresponding path program 1 times [2022-11-21 17:28:03,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:28:03,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1178265352] [2022-11-21 17:28:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:03,537 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 [2022-11-21 17:28:03,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:28:03,547 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:28:03,555 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:28:03,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:03,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 32 conjunts are in the unsatisfiable core [2022-11-21 17:28:03,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:28:04,320 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:04,321 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 17:28:04,322 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:28:04,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1178265352] [2022-11-21 17:28:04,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1178265352] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 17:28:04,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 17:28:04,323 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 17:28:04,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500410920] [2022-11-21 17:28:04,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 17:28:04,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 17:28:04,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:28:04,380 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 17:28:04,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 17:28:04,383 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) [2022-11-21 17:28:04,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:28:04,630 INFO L93 Difference]: Finished difference Result 20 states and 30 transitions. [2022-11-21 17:28:04,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 17:28:04,633 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 [2022-11-21 17:28:04,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:28:04,641 INFO L225 Difference]: With dead ends: 20 [2022-11-21 17:28:04,641 INFO L226 Difference]: Without dead ends: 11 [2022-11-21 17:28:04,645 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 17:28:04,651 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 [2022-11-21 17:28:04,653 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] [2022-11-21 17:28:04,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-21 17:28:04,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 9. [2022-11-21 17:28:04,688 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) [2022-11-21 17:28:04,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-11-21 17:28:04,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 5 [2022-11-21 17:28:04,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:28:04,691 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-11-21 17:28:04,691 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) [2022-11-21 17:28:04,691 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-11-21 17:28:04,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-21 17:28:04,692 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:28:04,692 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2022-11-21 17:28:04,707 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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)] Ended with exit code 0 [2022-11-21 17:28:04,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:28:04,904 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:28:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:04,905 INFO L85 PathProgramCache]: Analyzing trace with hash 271073635, now seen corresponding path program 1 times [2022-11-21 17:28:04,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:28:04,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [623888327] [2022-11-21 17:28:04,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 17:28:04,909 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 [2022-11-21 17:28:04,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:28:04,910 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:28:04,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:28:05,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 17:28:05,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 981 conjuncts, 126 conjunts are in the unsatisfiable core [2022-11-21 17:28:05,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 17:28:07,407 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:07,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-21 17:28:37,776 WARN L233 SmtUtils]: Spent 26.77s on a formula simplification that was a NOOP. DAG size: 334 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-11-21 17:28:38,882 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 17:28:38,883 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 17:28:38,884 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [623888327] [2022-11-21 17:28:38,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [623888327] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-21 17:28:38,891 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-11-21 17:28:38,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2022-11-21 17:28:38,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131308002] [2022-11-21 17:28:38,892 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-11-21 17:28:38,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-11-21 17:28:38,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 17:28:38,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-11-21 17:28:38,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-11-21 17:28:38,897 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) [2022-11-21 17:28:44,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 17:28:44,509 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2022-11-21 17:28:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 17:28:44,510 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 [2022-11-21 17:28:44,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 17:28:44,510 INFO L225 Difference]: With dead ends: 16 [2022-11-21 17:28:44,510 INFO L226 Difference]: Without dead ends: 14 [2022-11-21 17:28:44,511 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 34.0s TimeCoverageRelationStatistics Valid=37, Invalid=71, Unknown=2, NotChecked=0, Total=110 [2022-11-21 17:28:44,512 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 13 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-11-21 17:28:44,513 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 18 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-11-21 17:28:44,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-21 17:28:44,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 12. [2022-11-21 17:28:44,519 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) [2022-11-21 17:28:44,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2022-11-21 17:28:44,520 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 8 [2022-11-21 17:28:44,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 17:28:44,520 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2022-11-21 17:28:44,521 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) [2022-11-21 17:28:44,521 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2022-11-21 17:28:44,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 17:28:44,521 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 17:28:44,522 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-11-21 17:28:44,544 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-11-21 17:28:44,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:28:44,740 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-21 17:28:44,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 17:28:44,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1020920393, now seen corresponding path program 2 times [2022-11-21 17:28:44,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 17:28:44,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1702124271] [2022-11-21 17:28:44,744 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 17:28:44,744 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 [2022-11-21 17:28:44,744 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 17:28:44,746 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 17:28:44,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_fe72625a-8a1f-45a8-8baf-0a7dbeb79815/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 17:28:45,667 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-11-21 17:28:45,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 17:28:45,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 1856 conjuncts, 294 conjunts are in the unsatisfiable core [2022-11-21 17:28:45,739 INFO L286 TraceCheckSpWp]: Computing forward predicates...