./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ --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 32bit --witnessprinter.graph.data.programhash ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a --- 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-dbf71c6-m [2022-10-17 11:07:55,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 11:07:55,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 11:07:55,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 11:07:55,335 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 11:07:55,340 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 11:07:55,342 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 11:07:55,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 11:07:55,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 11:07:55,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 11:07:55,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 11:07:55,360 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 11:07:55,361 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 11:07:55,363 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 11:07:55,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 11:07:55,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 11:07:55,370 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 11:07:55,371 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 11:07:55,373 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 11:07:55,381 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 11:07:55,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 11:07:55,385 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 11:07:55,388 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 11:07:55,389 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 11:07:55,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 11:07:55,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 11:07:55,401 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 11:07:55,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 11:07:55,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 11:07:55,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 11:07:55,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 11:07:55,407 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 11:07:55,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 11:07:55,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 11:07:55,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 11:07:55,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 11:07:55,414 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 11:07:55,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 11:07:55,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 11:07:55,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 11:07:55,417 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 11:07:55,418 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 11:07:55,459 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 11:07:55,460 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 11:07:55,460 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 11:07:55,461 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 11:07:55,462 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 11:07:55,462 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 11:07:55,463 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 11:07:55,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 11:07:55,463 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 11:07:55,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 11:07:55,465 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 11:07:55,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 11:07:55,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 11:07:55,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 11:07:55,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 11:07:55,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 11:07:55,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 11:07:55,467 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 11:07:55,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 11:07:55,467 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 11:07:55,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 11:07:55,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 11:07:55,468 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 11:07:55,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 11:07:55,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:07:55,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 11:07:55,470 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 11:07:55,471 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 11:07:55,471 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 11:07:55,471 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 11:07:55,471 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 11:07:55,472 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 11:07:55,472 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 11:07:55,472 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_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ddf982557921584bb127c3d2f445aa0e6d0bc14c3d676da7af6c5c29bbe3794a [2022-10-17 11:07:55,795 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 11:07:55,830 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 11:07:55,832 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 11:07:55,834 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 11:07:55,834 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 11:07:55,836 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2022-10-17 11:07:55,909 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/data/e85e7f0c9/8512209bcfe241288e8f96eceebd8956/FLAGd7cec3f6b [2022-10-17 11:07:56,431 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 11:07:56,433 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2022-10-17 11:07:56,439 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/data/e85e7f0c9/8512209bcfe241288e8f96eceebd8956/FLAGd7cec3f6b [2022-10-17 11:07:56,810 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/data/e85e7f0c9/8512209bcfe241288e8f96eceebd8956 [2022-10-17 11:07:56,814 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 11:07:56,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 11:07:56,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 11:07:56,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 11:07:56,824 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 11:07:56,825 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3de5b099 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:56, skipping insertion in model container [2022-10-17 11:07:56,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 11:07:56" (1/1) ... [2022-10-17 11:07:56,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 11:07:56,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 11:07:57,063 WARN L230 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_8aeb6103-04da-40ad-8543-039138456af3/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2022-10-17 11:07:57,067 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:07:57,075 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 11:07:57,092 WARN L230 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_8aeb6103-04da-40ad-8543-039138456af3/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2022-10-17 11:07:57,093 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 11:07:57,108 INFO L208 MainTranslator]: Completed translation [2022-10-17 11:07:57,108 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57 WrapperNode [2022-10-17 11:07:57,109 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 11:07:57,110 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 11:07:57,110 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 11:07:57,111 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 11:07:57,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,125 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,143 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 41 [2022-10-17 11:07:57,143 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 11:07:57,144 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 11:07:57,144 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 11:07:57,145 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 11:07:57,154 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,155 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,158 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,160 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,161 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,162 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,164 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 11:07:57,165 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 11:07:57,165 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 11:07:57,165 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 11:07:57,166 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (1/1) ... [2022-10-17 11:07:57,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 11:07:57,183 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:07:57,197 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 11:07:57,218 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 11:07:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 11:07:57,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 11:07:57,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 11:07:57,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 11:07:57,300 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 11:07:57,302 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 11:07:57,440 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 11:07:57,446 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 11:07:57,447 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-17 11:07:57,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:57 BoogieIcfgContainer [2022-10-17 11:07:57,449 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 11:07:57,452 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 11:07:57,452 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 11:07:57,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 11:07:57,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 11:07:56" (1/3) ... [2022-10-17 11:07:57,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376d8ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:07:57, skipping insertion in model container [2022-10-17 11:07:57,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 11:07:57" (2/3) ... [2022-10-17 11:07:57,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@376d8ff0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 11:07:57, skipping insertion in model container [2022-10-17 11:07:57,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:57" (3/3) ... [2022-10-17 11:07:57,459 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2022-10-17 11:07:57,495 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 11:07:57,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 11:07:57,548 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 11:07:57,556 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;@2fbcabb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 11:07:57,556 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 11:07:57,560 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 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) [2022-10-17 11:07:57,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 11:07:57,567 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:57,567 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:57,568 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:57,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:57,574 INFO L85 PathProgramCache]: Analyzing trace with hash 1806908747, now seen corresponding path program 1 times [2022-10-17 11:07:57,584 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:57,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27768628] [2022-10-17 11:07:57,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:57,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:57,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:57,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:57,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:57,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27768628] [2022-10-17 11:07:57,808 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27768628] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 11:07:57,808 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 11:07:57,808 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-17 11:07:57,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950640428] [2022-10-17 11:07:57,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 11:07:57,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-17 11:07:57,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-17 11:07:57,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:57,855 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.5555555555555556) internal successors, (14), 10 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) Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-10-17 11:07:57,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:57,887 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2022-10-17 11:07:57,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-17 11:07:57,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-10-17 11:07:57,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:57,899 INFO L225 Difference]: With dead ends: 21 [2022-10-17 11:07:57,899 INFO L226 Difference]: Without dead ends: 9 [2022-10-17 11:07:57,903 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-17 11:07:57,909 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:57,910 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:57,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2022-10-17 11:07:57,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2022-10-17 11:07:57,956 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) [2022-10-17 11:07:57,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2022-10-17 11:07:57,959 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2022-10-17 11:07:57,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:57,959 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2022-10-17 11:07:57,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-10-17 11:07:57,960 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2022-10-17 11:07:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 11:07:57,961 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 11:07:57,961 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 11:07:57,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 11:07:57,962 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 11:07:57,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 11:07:57,963 INFO L85 PathProgramCache]: Analyzing trace with hash 179533835, now seen corresponding path program 1 times [2022-10-17 11:07:57,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 11:07:57,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447681298] [2022-10-17 11:07:57,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:57,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 11:07:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:58,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:58,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 11:07:58,276 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447681298] [2022-10-17 11:07:58,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447681298] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 11:07:58,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461110870] [2022-10-17 11:07:58,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 11:07:58,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 11:07:58,278 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 11:07:58,310 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 11:07:58,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 11:07:58,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 11:07:58,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-17 11:07:58,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 11:07:58,536 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:58,536 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 11:07:58,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 11:07:58,649 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461110870] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 11:07:58,649 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 11:07:58,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2022-10-17 11:07:58,650 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554228732] [2022-10-17 11:07:58,650 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 11:07:58,651 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-17 11:07:58,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 11:07:58,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-17 11:07:58,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-17 11:07:58,652 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 11:07:58,721 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2022-10-17 11:07:58,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-17 11:07:58,722 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-17 11:07:58,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 11:07:58,722 INFO L225 Difference]: With dead ends: 11 [2022-10-17 11:07:58,723 INFO L226 Difference]: Without dead ends: 0 [2022-10-17 11:07:58,723 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2022-10-17 11:07:58,725 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-17 11:07:58,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 13 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-17 11:07:58,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-17 11:07:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-17 11:07:58,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-17 11:07:58,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2022-10-17 11:07:58,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 11:07:58,728 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-17 11:07:58,729 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 1.875) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-17 11:07:58,729 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-17 11:07:58,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 11:07:58,732 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-10-17 11:07:58,770 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 11:07:58,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-10-17 11:07:58,952 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-17 11:07:58,980 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-17 11:07:58,980 INFO L899 garLoopResultBuilder]: For program point L25(lines 25 58) no Hoare annotation was computed. [2022-10-17 11:07:58,981 INFO L902 garLoopResultBuilder]: At program point L54(lines 13 60) the Hoare annotation is: true [2022-10-17 11:07:58,981 INFO L899 garLoopResultBuilder]: For program point L19(lines 19 59) no Hoare annotation was computed. [2022-10-17 11:07:58,981 INFO L899 garLoopResultBuilder]: For program point L48(line 48) no Hoare annotation was computed. [2022-10-17 11:07:58,981 INFO L899 garLoopResultBuilder]: For program point L46(lines 46 55) no Hoare annotation was computed. [2022-10-17 11:07:58,981 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-17 11:07:58,981 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-17 11:07:58,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-17 11:07:58,982 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2022-10-17 11:07:58,982 INFO L895 garLoopResultBuilder]: At program point L37(lines 30 58) the Hoare annotation is: (or (< 0 |ULTIMATE.start_main_~main__y~0#1|) (< |ULTIMATE.start_main_~main__x~0#1| 0)) [2022-10-17 11:07:58,985 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1] [2022-10-17 11:07:58,987 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-17 11:07:59,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 11:07:59 BoogieIcfgContainer [2022-10-17 11:07:59,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-17 11:07:59,009 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 11:07:59,009 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 11:07:59,009 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 11:07:59,010 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 11:07:57" (3/4) ... [2022-10-17 11:07:59,013 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 11:07:59,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2022-10-17 11:07:59,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-10-17 11:07:59,025 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-10-17 11:07:59,026 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 11:07:59,080 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/witness.graphml [2022-10-17 11:07:59,080 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 11:07:59,081 INFO L158 Benchmark]: Toolchain (without parser) took 2264.31ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 47.0MB in the beginning and 42.4MB in the end (delta: 4.6MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2022-10-17 11:07:59,081 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:07:59,083 INFO L158 Benchmark]: CACSL2BoogieTranslator took 289.13ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 46.8MB in the beginning and 77.8MB in the end (delta: -31.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-10-17 11:07:59,084 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.61ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 76.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:07:59,084 INFO L158 Benchmark]: Boogie Preprocessor took 19.80ms. Allocated memory is still 100.7MB. Free memory was 76.2MB in the beginning and 75.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 11:07:59,085 INFO L158 Benchmark]: RCFGBuilder took 284.41ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 66.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 11:07:59,085 INFO L158 Benchmark]: TraceAbstraction took 1555.73ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 44.6MB in the end (delta: 20.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. [2022-10-17 11:07:59,086 INFO L158 Benchmark]: Witness Printer took 71.06ms. Allocated memory is still 100.7MB. Free memory was 44.6MB in the beginning and 42.4MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 11:07:59,098 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 83.9MB. Free memory is still 63.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 289.13ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 46.8MB in the beginning and 77.8MB in the end (delta: -31.0MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.61ms. Allocated memory is still 100.7MB. Free memory was 77.6MB in the beginning and 76.2MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 19.80ms. Allocated memory is still 100.7MB. Free memory was 76.2MB in the beginning and 75.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 284.41ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 66.0MB in the end (delta: 9.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * TraceAbstraction took 1555.73ms. Allocated memory is still 100.7MB. Free memory was 65.5MB in the beginning and 44.6MB in the end (delta: 20.9MB). Peak memory consumption was 22.6MB. Max. memory is 16.1GB. * Witness Printer took 71.06ms. Allocated memory is still 100.7MB. Free memory was 44.6MB in the beginning and 42.4MB in the end (delta: 2.2MB). 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 - PositiveResult [Line: 48]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 11 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 8 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 31 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 23 IncrementalHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 16 mSDtfsCounter, 23 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=11occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 6 NumberOfFragments, 8 HoareAnnotationTreeSize, 2 FomulaSimplifications, 5 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 90 SizeOfPredicates, 4 NumberOfNonLiveVariables, 50 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 < main__y || main__x < 0 RESULT: Ultimate proved your program to be correct! [2022-10-17 11:07:59,160 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8aeb6103-04da-40ad-8543-039138456af3/bin/uautomizer-J5u9QxTXDZ/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 Writing output log to file Ultimate.log Result: TRUE