./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ifncompf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ifncompf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg --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 78b7072c9a7547879cdac09dc43cb093e423fbe324be54a54d60d5348866fc30 .................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:42:59,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:42:59,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:42:59,474 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:42:59,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:42:59,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:42:59,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:42:59,481 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:42:59,484 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:42:59,485 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:42:59,487 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:42:59,489 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:42:59,490 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:42:59,491 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:42:59,493 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:42:59,495 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:42:59,497 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:42:59,498 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:42:59,504 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:42:59,511 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:42:59,515 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:42:59,521 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:42:59,524 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:42:59,528 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:42:59,533 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:42:59,538 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:42:59,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:42:59,540 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:42:59,542 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:42:59,543 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:42:59,545 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:42:59,546 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:42:59,548 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:42:59,549 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:42:59,551 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:42:59,551 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:42:59,552 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:42:59,553 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:42:59,553 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:42:59,554 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:42:59,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:42:59,556 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:42:59,608 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:42:59,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:42:59,609 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:42:59,610 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:42:59,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:42:59,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:42:59,620 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:42:59,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:42:59,620 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:42:59,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:42:59,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:42:59,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:42:59,622 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:42:59,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:42:59,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:42:59,623 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:42:59,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:42:59,624 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:42:59,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:42:59,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:42:59,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:42:59,625 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:42:59,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:42:59,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:42:59,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:42:59,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:42:59,626 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:42:59,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:42:59,627 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:42:59,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:42:59,627 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:42:59,627 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:42:59,628 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_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 78b7072c9a7547879cdac09dc43cb093e423fbe324be54a54d60d5348866fc30 [2021-10-28 08:42:59,938 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:42:59,966 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:42:59,970 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:42:59,971 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:42:59,972 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:42:59,973 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-fpi/ifncompf.c [2021-10-28 08:43:00,065 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/data/8950e29db/349424e668da4944bd4d03a3cd4531af/FLAGbef40954b [2021-10-28 08:43:00,609 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:43:00,610 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/sv-benchmarks/c/array-fpi/ifncompf.c [2021-10-28 08:43:00,627 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/data/8950e29db/349424e668da4944bd4d03a3cd4531af/FLAGbef40954b [2021-10-28 08:43:00,971 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/data/8950e29db/349424e668da4944bd4d03a3cd4531af [2021-10-28 08:43:00,974 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:43:00,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:43:00,988 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:00,988 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:43:00,993 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:43:00,995 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:00" (1/1) ... [2021-10-28 08:43:00,997 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@497325c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:00, skipping insertion in model container [2021-10-28 08:43:00,998 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:43:00" (1/1) ... [2021-10-28 08:43:01,007 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:43:01,032 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:43:01,207 WARN L228 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_45095c13-8ede-46c3-b39e-fbd8dd9319c2/sv-benchmarks/c/array-fpi/ifncompf.c[591,604] [2021-10-28 08:43:01,229 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:01,239 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:43:01,254 WARN L228 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_45095c13-8ede-46c3-b39e-fbd8dd9319c2/sv-benchmarks/c/array-fpi/ifncompf.c[591,604] [2021-10-28 08:43:01,266 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:43:01,282 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:43:01,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01 WrapperNode [2021-10-28 08:43:01,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:43:01,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:43:01,285 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:43:01,285 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:43:01,291 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,300 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,327 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:43:01,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:43:01,329 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:43:01,329 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:43:01,339 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,339 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,343 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:43:01,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:43:01,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:43:01,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:43:01,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (1/1) ... [2021-10-28 08:43:01,375 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:43:01,389 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:01,401 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:43:01,408 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:43:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:43:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:43:01,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:43:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:43:01,472 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:43:01,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:43:01,473 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:43:01,765 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:43:01,765 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-10-28 08:43:01,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:01 BoogieIcfgContainer [2021-10-28 08:43:01,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:43:01,770 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:43:01,770 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:43:01,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:43:01,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:43:00" (1/3) ... [2021-10-28 08:43:01,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4647d7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:43:01, skipping insertion in model container [2021-10-28 08:43:01,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:43:01" (2/3) ... [2021-10-28 08:43:01,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4647d7f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:43:01, skipping insertion in model container [2021-10-28 08:43:01,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:01" (3/3) ... [2021-10-28 08:43:01,779 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncompf.c [2021-10-28 08:43:01,786 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:43:01,786 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:43:01,845 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:43:01,853 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:43:01,853 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:43:01,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 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) [2021-10-28 08:43:01,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:43:01,879 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:01,879 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:01,880 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:43:01,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:01,887 INFO L85 PathProgramCache]: Analyzing trace with hash 1152450264, now seen corresponding path program 1 times [2021-10-28 08:43:01,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:01,899 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552416194] [2021-10-28 08:43:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:01,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:02,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:02,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:02,183 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:02,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552416194] [2021-10-28 08:43:02,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552416194] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:02,187 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:02,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:43:02,199 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1388935503] [2021-10-28 08:43:02,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:43:02,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:02,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:43:02,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:43:02,243 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 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 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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) [2021-10-28 08:43:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:02,271 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2021-10-28 08:43:02,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:43:02,273 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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 14 [2021-10-28 08:43:02,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:02,282 INFO L225 Difference]: With dead ends: 50 [2021-10-28 08:43:02,283 INFO L226 Difference]: Without dead ends: 23 [2021-10-28 08:43:02,288 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:43:02,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-10-28 08:43:02,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-10-28 08:43:02,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 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) [2021-10-28 08:43:02,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2021-10-28 08:43:02,337 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 14 [2021-10-28 08:43:02,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:02,338 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2021-10-28 08:43:02,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 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) [2021-10-28 08:43:02,340 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2021-10-28 08:43:02,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-28 08:43:02,341 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:02,341 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:02,342 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:43:02,343 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:43:02,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:02,351 INFO L85 PathProgramCache]: Analyzing trace with hash 670750212, now seen corresponding path program 1 times [2021-10-28 08:43:02,351 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:02,352 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202894634] [2021-10-28 08:43:02,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:02,352 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:02,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:43:02,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:43:02,549 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:43:02,550 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202894634] [2021-10-28 08:43:02,550 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202894634] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:43:02,550 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:43:02,551 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 08:43:02,551 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631493886] [2021-10-28 08:43:02,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 08:43:02,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:43:02,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 08:43:02,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:43:02,555 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-28 08:43:02,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:43:02,667 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2021-10-28 08:43:02,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 08:43:02,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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 14 [2021-10-28 08:43:02,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:43:02,672 INFO L225 Difference]: With dead ends: 56 [2021-10-28 08:43:02,673 INFO L226 Difference]: Without dead ends: 38 [2021-10-28 08:43:02,675 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-28 08:43:02,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-10-28 08:43:02,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2021-10-28 08:43:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 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) [2021-10-28 08:43:02,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2021-10-28 08:43:02,703 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2021-10-28 08:43:02,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:43:02,703 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2021-10-28 08:43:02,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-28 08:43:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2021-10-28 08:43:02,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-10-28 08:43:02,706 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:43:02,706 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:43:02,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:43:02,708 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:43:02,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:43:02,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1978137699, now seen corresponding path program 1 times [2021-10-28 08:43:02,710 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:43:02,712 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781842744] [2021-10-28 08:43:02,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:02,714 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:43:02,789 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:43:02,802 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1418754565] [2021-10-28 08:43:02,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:43:02,803 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:02,803 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:43:02,806 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:43:02,831 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:43:02,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:43:02,960 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:43:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:43:03,040 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:43:03,041 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:43:03,042 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:43:03,090 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:43:03,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:43:03,274 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-10-28 08:43:03,277 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:43:03,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:43:03 BoogieIcfgContainer [2021-10-28 08:43:03,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:43:03,322 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:43:03,322 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:43:03,323 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:43:03,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:43:01" (3/4) ... [2021-10-28 08:43:03,326 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:43:03,391 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_45095c13-8ede-46c3-b39e-fbd8dd9319c2/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:43:03,391 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:43:03,394 INFO L168 Benchmark]: Toolchain (without parser) took 2416.57 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 78.3 MB in the beginning and 104.4 MB in the end (delta: -26.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:03,394 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 64.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:43:03,395 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.01 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 78.0 MB in the beginning and 111.8 MB in the end (delta: -33.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:03,396 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.18 ms. Allocated memory is still 138.4 MB. Free memory was 111.8 MB in the beginning and 110.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:03,397 INFO L168 Benchmark]: Boogie Preprocessor took 34.95 ms. Allocated memory is still 138.4 MB. Free memory was 110.2 MB in the beginning and 108.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:03,398 INFO L168 Benchmark]: RCFGBuilder took 403.97 ms. Allocated memory is still 138.4 MB. Free memory was 108.7 MB in the beginning and 96.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:03,398 INFO L168 Benchmark]: TraceAbstraction took 1551.38 ms. Allocated memory is still 138.4 MB. Free memory was 96.6 MB in the beginning and 106.9 MB in the end (delta: -10.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:43:03,399 INFO L168 Benchmark]: Witness Printer took 69.45 ms. Allocated memory is still 138.4 MB. Free memory was 106.9 MB in the beginning and 104.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:43:03,403 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 109.1 MB. Free memory is still 64.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 296.01 ms. Allocated memory was 109.1 MB in the beginning and 138.4 MB in the end (delta: 29.4 MB). Free memory was 78.0 MB in the beginning and 111.8 MB in the end (delta: -33.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.18 ms. Allocated memory is still 138.4 MB. Free memory was 111.8 MB in the beginning and 110.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.95 ms. Allocated memory is still 138.4 MB. Free memory was 110.2 MB in the beginning and 108.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 403.97 ms. Allocated memory is still 138.4 MB. Free memory was 108.7 MB in the beginning and 96.6 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1551.38 ms. Allocated memory is still 138.4 MB. Free memory was 96.6 MB in the beginning and 106.9 MB in the end (delta: -10.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 69.45 ms. Allocated memory is still 138.4 MB. Free memory was 106.9 MB in the beginning and 104.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * 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 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L30] long long *c = malloc(sizeof(long long)*N); [L32] i=0 VAL [N=1] [L32] COND TRUE i