./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/res1of.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7e70badd Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/res1of.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G --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 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 12:38:07,642 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 12:38:07,645 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 12:38:07,684 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 12:38:07,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 12:38:07,687 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 12:38:07,689 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 12:38:07,692 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 12:38:07,695 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 12:38:07,697 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 12:38:07,698 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 12:38:07,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 12:38:07,708 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 12:38:07,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 12:38:07,715 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 12:38:07,718 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 12:38:07,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 12:38:07,727 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 12:38:07,730 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 12:38:07,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 12:38:07,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 12:38:07,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 12:38:07,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 12:38:07,753 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 12:38:07,758 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 12:38:07,765 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 12:38:07,765 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 12:38:07,767 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 12:38:07,769 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 12:38:07,771 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 12:38:07,773 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 12:38:07,774 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 12:38:07,776 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 12:38:07,777 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 12:38:07,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 12:38:07,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 12:38:07,781 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 12:38:07,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 12:38:07,782 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 12:38:07,783 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 12:38:07,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 12:38:07,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 12:38:07,849 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 12:38:07,849 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 12:38:07,849 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 12:38:07,850 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 12:38:07,851 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 12:38:07,852 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 12:38:07,852 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 12:38:07,852 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 12:38:07,853 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 12:38:07,853 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 12:38:07,853 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 12:38:07,854 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 12:38:07,854 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 12:38:07,854 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 12:38:07,854 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 12:38:07,855 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 12:38:07,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 12:38:07,855 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 12:38:07,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 12:38:07,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 12:38:07,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 12:38:07,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 12:38:07,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:38:07,857 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 12:38:07,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 12:38:07,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 12:38:07,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 12:38:07,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 12:38:07,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 12:38:07,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 12:38:07,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 12:38:07,860 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 12:38:07,860 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_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 57f5bc3f2465ca16a33e2abd2b6a859e2a8d1edbb81177ae0ddb508180efbdff [2021-11-23 12:38:08,147 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 12:38:08,179 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 12:38:08,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 12:38:08,184 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 12:38:08,185 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 12:38:08,186 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/array-fpi/res1of.c [2021-11-23 12:38:08,262 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/data/1ef97e8fd/a1b707e781a2490da2a3759eb53dded7/FLAGf2c85f449 [2021-11-23 12:38:08,700 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 12:38:08,701 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/sv-benchmarks/c/array-fpi/res1of.c [2021-11-23 12:38:08,732 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/data/1ef97e8fd/a1b707e781a2490da2a3759eb53dded7/FLAGf2c85f449 [2021-11-23 12:38:09,082 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/data/1ef97e8fd/a1b707e781a2490da2a3759eb53dded7 [2021-11-23 12:38:09,084 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 12:38:09,086 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 12:38:09,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 12:38:09,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 12:38:09,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 12:38:09,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ecbe444 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09, skipping insertion in model container [2021-11-23 12:38:09,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,107 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 12:38:09,121 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 12:38:09,303 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-23 12:38:09,327 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:38:09,333 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 12:38:09,345 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/sv-benchmarks/c/array-fpi/res1of.c[589,602] [2021-11-23 12:38:09,357 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 12:38:09,371 INFO L208 MainTranslator]: Completed translation [2021-11-23 12:38:09,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09 WrapperNode [2021-11-23 12:38:09,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 12:38:09,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 12:38:09,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 12:38:09,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 12:38:09,381 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,410 INFO L137 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 88 [2021-11-23 12:38:09,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 12:38:09,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 12:38:09,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 12:38:09,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 12:38:09,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,434 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,436 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 12:38:09,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 12:38:09,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 12:38:09,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 12:38:09,449 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (1/1) ... [2021-11-23 12:38:09,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 12:38:09,470 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 12:38:09,497 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 12:38:09,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 12:38:09,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 12:38:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 12:38:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-23 12:38:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 12:38:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 12:38:09,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 12:38:09,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 12:38:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 12:38:09,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-23 12:38:09,621 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 12:38:09,623 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 12:38:09,827 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 12:38:09,848 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 12:38:09,849 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-23 12:38:09,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:09 BoogieIcfgContainer [2021-11-23 12:38:09,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 12:38:09,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 12:38:09,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 12:38:09,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 12:38:09,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 12:38:09" (1/3) ... [2021-11-23 12:38:09,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2e2dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:38:09, skipping insertion in model container [2021-11-23 12:38:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 12:38:09" (2/3) ... [2021-11-23 12:38:09,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d2e2dbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 12:38:09, skipping insertion in model container [2021-11-23 12:38:09,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:09" (3/3) ... [2021-11-23 12:38:09,883 INFO L111 eAbstractionObserver]: Analyzing ICFG res1of.c [2021-11-23 12:38:09,889 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 12:38:09,889 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 12:38:09,960 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 12:38:09,966 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 [2021-11-23 12:38:09,966 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 12:38:09,981 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) [2021-11-23 12:38:10,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 12:38:10,002 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:38:10,002 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:38:10,008 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:38:10,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:38:10,020 INFO L85 PathProgramCache]: Analyzing trace with hash -1202110748, now seen corresponding path program 1 times [2021-11-23 12:38:10,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:38:10,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116823030] [2021-11-23 12:38:10,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:38:10,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:38:10,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:38:10,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:38:10,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:38:10,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116823030] [2021-11-23 12:38:10,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116823030] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:38:10,239 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:38:10,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 12:38:10,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394571502] [2021-11-23 12:38:10,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:38:10,246 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 12:38:10,246 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:38:10,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 12:38:10,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 12:38:10,289 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) [2021-11-23 12:38:10,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:38:10,312 INFO L93 Difference]: Finished difference Result 44 states and 62 transitions. [2021-11-23 12:38:10,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 12:38:10,315 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 [2021-11-23 12:38:10,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:38:10,324 INFO L225 Difference]: With dead ends: 44 [2021-11-23 12:38:10,325 INFO L226 Difference]: Without dead ends: 20 [2021-11-23 12:38:10,329 INFO L932 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 [2021-11-23 12:38:10,339 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-23 12:38:10,340 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 12:38:10,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2021-11-23 12:38:10,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2021-11-23 12:38:10,372 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) [2021-11-23 12:38:10,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2021-11-23 12:38:10,374 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 15 [2021-11-23 12:38:10,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:38:10,375 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2021-11-23 12:38:10,375 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) [2021-11-23 12:38:10,375 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2021-11-23 12:38:10,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-23 12:38:10,376 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:38:10,377 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 12:38:10,377 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 12:38:10,377 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:38:10,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:38:10,378 INFO L85 PathProgramCache]: Analyzing trace with hash -944124056, now seen corresponding path program 1 times [2021-11-23 12:38:10,379 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:38:10,379 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864018884] [2021-11-23 12:38:10,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:38:10,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:38:10,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 12:38:10,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-23 12:38:10,497 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 12:38:10,498 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864018884] [2021-11-23 12:38:10,498 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864018884] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 12:38:10,498 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 12:38:10,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-23 12:38:10,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109759766] [2021-11-23 12:38:10,499 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 12:38:10,501 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-23 12:38:10,501 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 12:38:10,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-23 12:38:10,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-23 12:38:10,502 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) [2021-11-23 12:38:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 12:38:10,595 INFO L93 Difference]: Finished difference Result 41 states and 50 transitions. [2021-11-23 12:38:10,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-23 12:38:10,597 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 [2021-11-23 12:38:10,597 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 12:38:10,598 INFO L225 Difference]: With dead ends: 41 [2021-11-23 12:38:10,598 INFO L226 Difference]: Without dead ends: 28 [2021-11-23 12:38:10,598 INFO L932 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 [2021-11-23 12:38:10,602 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 20 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-23 12:38:10,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 12 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-23 12:38:10,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2021-11-23 12:38:10,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 24. [2021-11-23 12:38:10,609 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) [2021-11-23 12:38:10,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2021-11-23 12:38:10,610 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 15 [2021-11-23 12:38:10,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 12:38:10,610 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2021-11-23 12:38:10,610 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) [2021-11-23 12:38:10,611 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2021-11-23 12:38:10,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-11-23 12:38:10,611 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 12:38:10,612 INFO L514 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] [2021-11-23 12:38:10,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-23 12:38:10,615 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 12:38:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 12:38:10,617 INFO L85 PathProgramCache]: Analyzing trace with hash 1401448688, now seen corresponding path program 1 times [2021-11-23 12:38:10,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 12:38:10,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578823619] [2021-11-23 12:38:10,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 12:38:10,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 12:38:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:38:10,736 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 12:38:10,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 12:38:10,867 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 12:38:10,867 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 12:38:10,869 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 12:38:10,871 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-23 12:38:10,877 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-23 12:38:10,880 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 12:38:10,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 12:38:10 BoogieIcfgContainer [2021-11-23 12:38:10,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 12:38:10,927 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 12:38:10,927 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 12:38:10,927 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 12:38:10,928 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 12:38:09" (3/4) ... [2021-11-23 12:38:10,930 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 12:38:10,988 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f985d172-1513-4502-92cb-be6d5cc912d2/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 12:38:10,988 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 12:38:10,990 INFO L158 Benchmark]: Toolchain (without parser) took 1903.11ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.5MB in the beginning and 49.7MB in the end (delta: -145.6kB). Peak memory consumption was 13.9MB. Max. memory is 16.1GB. [2021-11-23 12:38:10,990 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 56.2MB in the beginning and 56.2MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 12:38:10,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 278.54ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 76.9MB in the end (delta: -27.6MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2021-11-23 12:38:10,992 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.67ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:38:10,993 INFO L158 Benchmark]: Boogie Preprocessor took 26.81ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 73.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:38:10,994 INFO L158 Benchmark]: RCFGBuilder took 424.81ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 63.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 12:38:10,994 INFO L158 Benchmark]: TraceAbstraction took 1060.27ms. Allocated memory is still 100.7MB. Free memory was 62.3MB in the beginning and 52.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 12:38:10,995 INFO L158 Benchmark]: Witness Printer took 61.77ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 49.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 12:38:11,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 83.9MB. Free memory was 56.2MB in the beginning and 56.2MB in the end (delta: 30.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 278.54ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 49.3MB in the beginning and 76.9MB in the end (delta: -27.6MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.67ms. Allocated memory is still 100.7MB. Free memory was 76.9MB in the beginning and 75.2MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.81ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 73.8MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 424.81ms. Allocated memory is still 100.7MB. Free memory was 73.8MB in the beginning and 63.0MB in the end (delta: 10.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 1060.27ms. Allocated memory is still 100.7MB. Free memory was 62.3MB in the beginning and 52.2MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Witness Printer took 61.77ms. Allocated memory is still 100.7MB. Free memory was 52.2MB in the beginning and 49.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L30] int *b = malloc(sizeof(int)*N); [L32] sum[0] = 0 [L33] i=0 VAL [a={-1:0}, b={5:0}, i=0, N=1, sum={7:0}] [L33] COND TRUE i