./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/ss4f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f8e1c903 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/ss4f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX --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 ec849c99676c748abc5b9766c44a36d723f69a872b4d768d06c539c74569bdf4 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-f8e1c90 [2021-11-09 10:49:35,781 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-09 10:49:35,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-09 10:49:35,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-09 10:49:35,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-09 10:49:35,832 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-09 10:49:35,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-09 10:49:35,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-09 10:49:35,839 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-09 10:49:35,841 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-09 10:49:35,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-09 10:49:35,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-09 10:49:35,845 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-09 10:49:35,847 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-09 10:49:35,849 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-09 10:49:35,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-09 10:49:35,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-09 10:49:35,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-09 10:49:35,863 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-09 10:49:35,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-09 10:49:35,869 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-09 10:49:35,878 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-09 10:49:35,883 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-09 10:49:35,884 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-09 10:49:35,896 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-09 10:49:35,903 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-09 10:49:35,903 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-09 10:49:35,905 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-09 10:49:35,907 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-09 10:49:35,908 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-09 10:49:35,910 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-09 10:49:35,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-09 10:49:35,917 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-09 10:49:35,918 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-09 10:49:35,920 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-09 10:49:35,921 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-09 10:49:35,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-09 10:49:35,923 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-09 10:49:35,924 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-09 10:49:35,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-09 10:49:35,928 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-09 10:49:35,929 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-09 10:49:35,984 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-09 10:49:35,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-09 10:49:35,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-09 10:49:35,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-09 10:49:35,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-09 10:49:35,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-09 10:49:35,987 INFO L138 SettingsManager]: * Use SBE=true [2021-11-09 10:49:35,988 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-09 10:49:35,988 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-09 10:49:35,988 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-09 10:49:35,989 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-09 10:49:35,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-09 10:49:35,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-09 10:49:35,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-09 10:49:35,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-09 10:49:35,990 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-09 10:49:35,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-09 10:49:35,991 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-09 10:49:35,991 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-09 10:49:35,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-09 10:49:35,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-09 10:49:35,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-09 10:49:35,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:49:35,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-09 10:49:35,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-09 10:49:35,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-09 10:49:35,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-09 10:49:35,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-09 10:49:35,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-09 10:49:35,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-09 10:49:35,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-09 10:49:35,995 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-09 10:49:35,995 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_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec849c99676c748abc5b9766c44a36d723f69a872b4d768d06c539c74569bdf4 [2021-11-09 10:49:36,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-09 10:49:36,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-09 10:49:36,382 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-09 10:49:36,384 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-09 10:49:36,386 INFO L275 PluginConnector]: CDTParser initialized [2021-11-09 10:49:36,387 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/../../sv-benchmarks/c/array-fpi/ss4f.c [2021-11-09 10:49:36,493 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/data/39b8b624e/614c2b8dcb464d519f3f49653af758e8/FLAGd7d6a0328 [2021-11-09 10:49:37,053 INFO L306 CDTParser]: Found 1 translation units. [2021-11-09 10:49:37,054 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/sv-benchmarks/c/array-fpi/ss4f.c [2021-11-09 10:49:37,068 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/data/39b8b624e/614c2b8dcb464d519f3f49653af758e8/FLAGd7d6a0328 [2021-11-09 10:49:37,369 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/data/39b8b624e/614c2b8dcb464d519f3f49653af758e8 [2021-11-09 10:49:37,372 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-09 10:49:37,374 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-09 10:49:37,376 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-09 10:49:37,376 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-09 10:49:37,381 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-09 10:49:37,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,383 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39ba1183 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37, skipping insertion in model container [2021-11-09 10:49:37,384 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-09 10:49:37,409 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-09 10:49:37,593 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_56bfdd4d-52dc-44a6-a599-db876b865ee2/sv-benchmarks/c/array-fpi/ss4f.c[587,600] [2021-11-09 10:49:37,618 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:49:37,628 INFO L203 MainTranslator]: Completed pre-run [2021-11-09 10:49:37,645 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_56bfdd4d-52dc-44a6-a599-db876b865ee2/sv-benchmarks/c/array-fpi/ss4f.c[587,600] [2021-11-09 10:49:37,658 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-09 10:49:37,675 INFO L208 MainTranslator]: Completed translation [2021-11-09 10:49:37,676 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37 WrapperNode [2021-11-09 10:49:37,676 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-09 10:49:37,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-09 10:49:37,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-09 10:49:37,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-09 10:49:37,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,701 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,730 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-09 10:49:37,731 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-09 10:49:37,731 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-09 10:49:37,731 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-09 10:49:37,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,762 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,764 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-09 10:49:37,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-09 10:49:37,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-09 10:49:37,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-09 10:49:37,771 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (1/1) ... [2021-11-09 10:49:37,786 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-09 10:49:37,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:49:37,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-09 10:49:37,828 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-09 10:49:37,866 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-09 10:49:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-09 10:49:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-09 10:49:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-09 10:49:37,867 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-09 10:49:37,867 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-09 10:49:37,868 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-09 10:49:37,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-09 10:49:38,165 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-09 10:49:38,165 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-09 10:49:38,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:49:38 BoogieIcfgContainer [2021-11-09 10:49:38,168 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-09 10:49:38,170 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-09 10:49:38,171 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-09 10:49:38,181 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-09 10:49:38,181 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:49:37" (1/3) ... [2021-11-09 10:49:38,182 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6657c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:49:38, skipping insertion in model container [2021-11-09 10:49:38,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:49:37" (2/3) ... [2021-11-09 10:49:38,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c6657c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:49:38, skipping insertion in model container [2021-11-09 10:49:38,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:49:38" (3/3) ... [2021-11-09 10:49:38,185 INFO L111 eAbstractionObserver]: Analyzing ICFG ss4f.c [2021-11-09 10:49:38,191 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-09 10:49:38,192 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-09 10:49:38,244 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-09 10:49:38,252 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 [2021-11-09 10:49:38,253 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-09 10:49:38,276 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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) [2021-11-09 10:49:38,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-09 10:49:38,291 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:49:38,292 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:49:38,293 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:49:38,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:49:38,321 INFO L85 PathProgramCache]: Analyzing trace with hash -1202110748, now seen corresponding path program 1 times [2021-11-09 10:49:38,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:49:38,340 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798591640] [2021-11-09 10:49:38,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:49:38,342 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:49:38,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:49:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:49:38,590 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:49:38,591 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798591640] [2021-11-09 10:49:38,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798591640] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:49:38,592 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:49:38,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-09 10:49:38,595 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1594085126] [2021-11-09 10:49:38,601 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-09 10:49:38,602 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:49:38,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-09 10:49:38,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-09 10:49:38,634 INFO L87 Difference]: Start difference. First operand has 24 states, 22 states have (on average 1.5454545454545454) internal successors, (34), 23 states have internal predecessors, (34), 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 7.5) internal successors, (15), 2 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) [2021-11-09 10:49:38,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:49:38,655 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-11-09 10:49:38,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-09 10:49:38,658 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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 15 [2021-11-09 10:49:38,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:49:38,668 INFO L225 Difference]: With dead ends: 44 [2021-11-09 10:49:38,668 INFO L226 Difference]: Without dead ends: 20 [2021-11-09 10:49:38,674 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 [2021-11-09 10:49:38,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-09 10:49:38,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-09 10:49:38,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 19 states have internal predecessors, (23), 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) [2021-11-09 10:49:38,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-09 10:49:38,720 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2021-11-09 10:49:38,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:49:38,721 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-09 10:49:38,722 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 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) [2021-11-09 10:49:38,722 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-09 10:49:38,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-09 10:49:38,724 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:49:38,724 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-09 10:49:38,724 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-09 10:49:38,725 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:49:38,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:49:38,730 INFO L85 PathProgramCache]: Analyzing trace with hash -944124056, now seen corresponding path program 1 times [2021-11-09 10:49:38,730 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:49:38,730 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094975922] [2021-11-09 10:49:38,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:49:38,731 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:49:38,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-09 10:49:38,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-09 10:49:38,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-09 10:49:38,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094975922] [2021-11-09 10:49:38,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094975922] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-09 10:49:38,928 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-09 10:49:38,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-09 10:49:38,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [972483514] [2021-11-09 10:49:38,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-09 10:49:38,931 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-09 10:49:38,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-09 10:49:38,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-09 10:49:38,933 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-11-09 10:49:39,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-09 10:49:39,051 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-11-09 10:49:39,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-09 10:49:39,052 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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 15 [2021-11-09 10:49:39,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-09 10:49:39,054 INFO L225 Difference]: With dead ends: 41 [2021-11-09 10:49:39,054 INFO L226 Difference]: Without dead ends: 28 [2021-11-09 10:49:39,055 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 [2021-11-09 10:49:39,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-09 10:49:39,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-11-09 10:49:39,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 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) [2021-11-09 10:49:39,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-11-09 10:49:39,063 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2021-11-09 10:49:39,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-09 10:49:39,063 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-09 10:49:39,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.75) internal successors, (15), 4 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) [2021-11-09 10:49:39,064 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-11-09 10:49:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-09 10:49:39,065 INFO L505 BasicCegarLoop]: Found error trace [2021-11-09 10:49:39,066 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] [2021-11-09 10:49:39,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-09 10:49:39,066 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-09 10:49:39,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-09 10:49:39,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1401448688, now seen corresponding path program 1 times [2021-11-09 10:49:39,075 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-09 10:49:39,075 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835154757] [2021-11-09 10:49:39,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:49:39,076 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-09 10:49:39,127 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-09 10:49:39,127 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [517089104] [2021-11-09 10:49:39,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-09 10:49:39,128 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:49:39,128 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 [2021-11-09 10:49:39,132 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-09 10:49:39,154 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-09 10:49:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:49:39,295 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-09 10:49:39,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-09 10:49:39,369 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-09 10:49:39,370 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-09 10:49:39,371 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-09 10:49:39,416 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-09 10:49:39,601 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-09 10:49:39,605 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-09 10:49:39,608 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-09 10:49:39,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.11 10:49:39 BoogieIcfgContainer [2021-11-09 10:49:39,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-09 10:49:39,663 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-09 10:49:39,663 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-09 10:49:39,663 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-09 10:49:39,664 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:49:38" (3/4) ... [2021-11-09 10:49:39,667 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-09 10:49:39,733 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56bfdd4d-52dc-44a6-a599-db876b865ee2/bin/uautomizer-IVEQpCNsaX/witness.graphml [2021-11-09 10:49:39,733 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-09 10:49:39,735 INFO L168 Benchmark]: Toolchain (without parser) took 2360.47 ms. Allocated memory is still 115.3 MB. Free memory was 75.8 MB in the beginning and 80.6 MB in the end (delta: -4.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:49:39,736 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 115.3 MB. Free memory is still 92.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:49:39,737 INFO L168 Benchmark]: CACSL2BoogieTranslator took 300.88 ms. Allocated memory is still 115.3 MB. Free memory was 75.6 MB in the beginning and 89.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-09 10:49:39,738 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.18 ms. Allocated memory is still 115.3 MB. Free memory was 89.0 MB in the beginning and 87.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:49:39,739 INFO L168 Benchmark]: Boogie Preprocessor took 37.13 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 86.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:49:39,740 INFO L168 Benchmark]: RCFGBuilder took 399.24 ms. Allocated memory is still 115.3 MB. Free memory was 86.0 MB in the beginning and 74.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-11-09 10:49:39,741 INFO L168 Benchmark]: TraceAbstraction took 1491.76 ms. Allocated memory is still 115.3 MB. Free memory was 74.3 MB in the beginning and 83.3 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-09 10:49:39,742 INFO L168 Benchmark]: Witness Printer took 70.68 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 80.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-09 10:49:39,747 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 115.3 MB. Free memory is still 92.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 300.88 ms. Allocated memory is still 115.3 MB. Free memory was 75.6 MB in the beginning and 89.0 MB in the end (delta: -13.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.18 ms. Allocated memory is still 115.3 MB. Free memory was 89.0 MB in the beginning and 87.4 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 37.13 ms. Allocated memory is still 115.3 MB. Free memory was 87.4 MB in the beginning and 86.0 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 399.24 ms. Allocated memory is still 115.3 MB. Free memory was 86.0 MB in the beginning and 74.8 MB in the end (delta: 11.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1491.76 ms. Allocated memory is still 115.3 MB. Free memory was 74.3 MB in the beginning and 83.3 MB in the end (delta: -9.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 70.68 ms. Allocated memory is still 115.3 MB. Free memory was 83.3 MB in the beginning and 80.6 MB in the end (delta: 2.7 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 sum[1]; [L29] long long *a = malloc(sizeof(long long)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i