./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/matrix-2-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/matrix-2-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8 --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 29c60028fe77c919c85938e022adc26e4c09a5802df35e9dae1aea434a543980 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:10:30,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:10:30,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:10:30,698 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:10:30,698 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:10:30,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:10:30,701 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:10:30,702 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:10:30,704 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:10:30,704 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:10:30,705 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:10:30,706 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:10:30,707 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:10:30,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:10:30,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:10:30,710 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:10:30,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:10:30,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:10:30,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:10:30,716 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:10:30,717 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:10:30,718 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:10:30,718 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:10:30,719 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:10:30,721 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:10:30,721 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:10:30,721 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:10:30,722 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:10:30,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:10:30,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:10:30,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:10:30,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:10:30,724 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:10:30,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:10:30,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:10:30,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:10:30,725 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:10:30,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:10:30,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:10:30,726 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:10:30,727 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:10:30,727 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 16:10:30,740 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:10:30,740 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:10:30,740 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:10:30,740 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:10:30,741 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:10:30,745 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:10:30,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:10:30,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:10:30,747 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:10:30,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:10:30,747 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 16:10:30,747 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:10:30,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 16:10:30,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:10:30,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:10:30,748 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:10:30,748 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:10:30,748 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 16:10:30,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:10:30,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:10:30,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:10:30,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:10:30,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:10:30,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:10:30,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:30,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:10:30,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:10:30,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:10:30,751 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:10:30,751 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:10:30,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:10:30,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:10:30,751 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:10:30,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:10:30,752 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:10:30,752 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 29c60028fe77c919c85938e022adc26e4c09a5802df35e9dae1aea434a543980 [2022-12-13 16:10:30,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:10:30,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:10:30,939 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:10:30,940 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:10:30,940 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:10:30,941 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loops/matrix-2-2.c [2022-12-13 16:10:33,600 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:10:33,716 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:10:33,716 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/sv-benchmarks/c/loops/matrix-2-2.c [2022-12-13 16:10:33,721 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/data/9922713bd/7e82e4694a644243b18f6cfcfaa7882d/FLAG31ad6ae8f [2022-12-13 16:10:33,731 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/data/9922713bd/7e82e4694a644243b18f6cfcfaa7882d [2022-12-13 16:10:33,733 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:10:33,734 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:10:33,734 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:33,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:10:33,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:10:33,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,739 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e014849 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33, skipping insertion in model container [2022-12-13 16:10:33,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:10:33,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:10:33,868 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/sv-benchmarks/c/loops/matrix-2-2.c[322,335] [2022-12-13 16:10:33,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:33,896 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:10:33,907 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/sv-benchmarks/c/loops/matrix-2-2.c[322,335] [2022-12-13 16:10:33,915 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:10:33,928 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:10:33,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33 WrapperNode [2022-12-13 16:10:33,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:10:33,930 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:33,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:10:33,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:10:33,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,941 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,958 INFO L138 Inliner]: procedures = 15, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 77 [2022-12-13 16:10:33,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:10:33,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:10:33,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:10:33,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:10:33,969 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,969 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,971 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,971 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,976 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,979 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,981 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,982 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:10:33,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:10:33,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:10:33,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:10:33,986 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (1/1) ... [2022-12-13 16:10:33,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:10:34,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:34,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:10:34,016 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:10:34,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:10:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:10:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:10:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 16:10:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:10:34,051 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:10:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 16:10:34,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:10:34,110 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:10:34,112 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:10:34,253 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:10:34,258 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:10:34,258 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 16:10:34,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:34 BoogieIcfgContainer [2022-12-13 16:10:34,260 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:10:34,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:10:34,263 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:10:34,266 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:10:34,266 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:10:33" (1/3) ... [2022-12-13 16:10:34,267 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fe7a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:34, skipping insertion in model container [2022-12-13 16:10:34,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:10:33" (2/3) ... [2022-12-13 16:10:34,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71fe7a8d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:10:34, skipping insertion in model container [2022-12-13 16:10:34,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:34" (3/3) ... [2022-12-13 16:10:34,269 INFO L112 eAbstractionObserver]: Analyzing ICFG matrix-2-2.c [2022-12-13 16:10:34,288 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:10:34,289 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 16:10:34,335 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:10:34,341 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@427fb02f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:10:34,342 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 16:10:34,345 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:34,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 16:10:34,350 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:34,350 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:34,350 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:10:34,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:34,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1978865680, now seen corresponding path program 1 times [2022-12-13 16:10:34,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:34,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126953353] [2022-12-13 16:10:34,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:34,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:34,451 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:10:34,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087995110] [2022-12-13 16:10:34,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:34,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:34,452 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:34,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:10:34,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:10:34,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:34,515 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:10:34,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:10:34,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:10:34,532 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:10:34,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:34,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126953353] [2022-12-13 16:10:34,533 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:10:34,533 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087995110] [2022-12-13 16:10:34,533 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087995110] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:34,534 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:34,534 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:10:34,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775442163] [2022-12-13 16:10:34,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:34,539 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:10:34,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:34,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:10:34,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:10:34,563 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.631578947368421) internal successors, (31), 20 states have internal predecessors, (31), 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 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:34,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:34,575 INFO L93 Difference]: Finished difference Result 39 states and 58 transitions. [2022-12-13 16:10:34,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:10:34,577 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 16:10:34,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:34,583 INFO L225 Difference]: With dead ends: 39 [2022-12-13 16:10:34,583 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 16:10:34,585 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:10:34,587 INFO L413 NwaCegarLoop]: 26 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, 26 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 [2022-12-13 16:10:34,588 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:10:34,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 16:10:34,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 16:10:34,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.3125) internal successors, (21), 16 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:34,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2022-12-13 16:10:34,620 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 9 [2022-12-13 16:10:34,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:34,620 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2022-12-13 16:10:34,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:34,621 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2022-12-13 16:10:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-13 16:10:34,621 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:34,621 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:34,626 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:10:34,822 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 16:10:34,823 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:10:34,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:34,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1320395207, now seen corresponding path program 1 times [2022-12-13 16:10:34,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:34,825 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762428888] [2022-12-13 16:10:34,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:34,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:34,891 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:10:34,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [930560705] [2022-12-13 16:10:34,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:34,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:34,895 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:34,899 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:10:34,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 16:10:35,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:35,081 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 16:10:35,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:10:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:10:35,139 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:10:35,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:35,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762428888] [2022-12-13 16:10:35,140 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:10:35,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [930560705] [2022-12-13 16:10:35,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [930560705] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:35,140 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:35,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:10:35,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989417674] [2022-12-13 16:10:35,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:35,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:35,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:35,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:35,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:35,143 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:35,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:35,188 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2022-12-13 16:10:35,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:10:35,189 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-12-13 16:10:35,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:35,190 INFO L225 Difference]: With dead ends: 40 [2022-12-13 16:10:35,190 INFO L226 Difference]: Without dead ends: 30 [2022-12-13 16:10:35,190 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:35,191 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 15 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:10:35,192 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 34 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:10:35,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-12-13 16:10:35,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 18. [2022-12-13 16:10:35,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 17 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2022-12-13 16:10:35,195 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 9 [2022-12-13 16:10:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:35,195 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2022-12-13 16:10:35,195 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:35,195 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2022-12-13 16:10:35,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:10:35,196 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:35,196 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:35,200 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 16:10:35,397 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:35,398 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:10:35,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:35,400 INFO L85 PathProgramCache]: Analyzing trace with hash 448383483, now seen corresponding path program 1 times [2022-12-13 16:10:35,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:35,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152998154] [2022-12-13 16:10:35,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:35,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:35,433 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:10:35,434 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1998855840] [2022-12-13 16:10:35,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:35,435 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:35,436 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:35,439 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:10:35,442 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 16:10:35,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:10:35,560 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 8 conjunts are in the unsatisfiable core [2022-12-13 16:10:35,561 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:10:35,592 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:10:35,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:10:35,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:10:35,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152998154] [2022-12-13 16:10:35,592 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-13 16:10:35,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998855840] [2022-12-13 16:10:35,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998855840] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:10:35,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:10:35,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 16:10:35,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276803176] [2022-12-13 16:10:35,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:10:35,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 16:10:35,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:10:35,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 16:10:35,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:35,594 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:35,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:10:35,635 INFO L93 Difference]: Finished difference Result 48 states and 62 transitions. [2022-12-13 16:10:35,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:10:35,635 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-12-13 16:10:35,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:10:35,636 INFO L225 Difference]: With dead ends: 48 [2022-12-13 16:10:35,636 INFO L226 Difference]: Without dead ends: 27 [2022-12-13 16:10:35,636 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 16:10:35,637 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 23 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:10:35,637 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 37 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:10:35,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-12-13 16:10:35,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 20. [2022-12-13 16:10:35,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:35,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2022-12-13 16:10:35,640 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12 [2022-12-13 16:10:35,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:10:35,640 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2022-12-13 16:10:35,641 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 16:10:35,641 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2022-12-13 16:10:35,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-12-13 16:10:35,641 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:10:35,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:10:35,645 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 16:10:35,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:35,844 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 16:10:35,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:10:35,845 INFO L85 PathProgramCache]: Analyzing trace with hash -759520544, now seen corresponding path program 1 times [2022-12-13 16:10:35,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:10:35,847 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846764217] [2022-12-13 16:10:35,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:35,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:10:35,881 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:10:35,881 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [926056274] [2022-12-13 16:10:35,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:10:35,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:35,883 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:10:35,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:10:35,890 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 16:10:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:10:36,030 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:10:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:10:36,061 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:10:36,062 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:10:36,062 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-12-13 16:10:36,068 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 16:10:36,264 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:10:36,274 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 16:10:36,283 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:10:36,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:10:36 BoogieIcfgContainer [2022-12-13 16:10:36,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:10:36,342 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:10:36,342 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:10:36,342 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:10:36,343 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:10:34" (3/4) ... [2022-12-13 16:10:36,348 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 16:10:36,397 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_eb180864-6bfd-4639-a443-19100be90a7b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 16:10:36,397 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:10:36,397 INFO L158 Benchmark]: Toolchain (without parser) took 2663.77ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 97.6MB in the beginning and 96.7MB in the end (delta: 940.2kB). Peak memory consumption was 29.3MB. Max. memory is 16.1GB. [2022-12-13 16:10:36,397 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:36,398 INFO L158 Benchmark]: CACSL2BoogieTranslator took 194.64ms. Allocated memory is still 132.1MB. Free memory was 97.2MB in the beginning and 86.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 16:10:36,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.74ms. Allocated memory is still 132.1MB. Free memory was 86.7MB in the beginning and 85.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:36,398 INFO L158 Benchmark]: Boogie Preprocessor took 25.22ms. Allocated memory is still 132.1MB. Free memory was 85.1MB in the beginning and 83.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:10:36,398 INFO L158 Benchmark]: RCFGBuilder took 275.55ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 72.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:10:36,399 INFO L158 Benchmark]: TraceAbstraction took 2077.60ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 71.3MB in the beginning and 98.8MB in the end (delta: -27.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:36,399 INFO L158 Benchmark]: Witness Printer took 55.36ms. Allocated memory is still 159.4MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:10:36,400 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 132.1MB. Free memory is still 101.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 194.64ms. Allocated memory is still 132.1MB. Free memory was 97.2MB in the beginning and 86.7MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.74ms. Allocated memory is still 132.1MB. Free memory was 86.7MB in the beginning and 85.1MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.22ms. Allocated memory is still 132.1MB. Free memory was 85.1MB in the beginning and 83.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 275.55ms. Allocated memory is still 132.1MB. Free memory was 83.8MB in the beginning and 72.1MB in the end (delta: 11.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 2077.60ms. Allocated memory was 132.1MB in the beginning and 159.4MB in the end (delta: 27.3MB). Free memory was 71.3MB in the beginning and 98.8MB in the end (delta: -27.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Witness Printer took 55.36ms. Allocated memory is still 159.4MB. Free memory was 98.8MB in the beginning and 96.7MB in the end (delta: 2.1MB). 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: 7]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L16] unsigned int N_LIN=__VERIFIER_nondet_uint(); [L17] unsigned int N_COL=__VERIFIER_nondet_uint(); [L18] COND FALSE !(N_LIN >= 4000000000 / sizeof(int) || N_COL >= 4000000000 / sizeof(int)) [L21] unsigned int j,k; [L22] int matriz[N_COL][N_LIN], maior; [L24] maior = __VERIFIER_nondet_int() [L25] j=0 VAL [j=0, maior=-1, matriz={4:0}, N_COL=1, N_LIN=1] [L25] COND TRUE jmaior [L31] EXPR matriz[j][k] [L31] maior = matriz[j][k] [L26] k++ VAL [j=0, k=1, maior=0, matriz={4:0}, N_COL=1, N_LIN=1] [L26] COND FALSE !(k