./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sqmf.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_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/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_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sqmf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/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_21ec048d-af3a-409d-9cc0-164eb08edb8d/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 24888a06200d8a603c9d35acbb4d9d45bc573dc668676385643552e5524aa211 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-7e70bad [2021-11-23 13:04:57,909 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-23 13:04:57,911 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-23 13:04:57,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-23 13:04:57,945 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-23 13:04:57,946 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-23 13:04:57,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-23 13:04:57,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-23 13:04:57,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-23 13:04:57,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-23 13:04:57,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-23 13:04:57,956 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-23 13:04:57,956 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-23 13:04:57,958 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-23 13:04:57,959 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-23 13:04:57,961 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-23 13:04:57,962 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-23 13:04:57,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-23 13:04:57,965 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-23 13:04:57,968 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-23 13:04:57,970 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-23 13:04:57,971 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-23 13:04:57,973 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-23 13:04:57,974 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-23 13:04:57,977 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-23 13:04:57,978 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-23 13:04:57,978 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-23 13:04:57,979 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-23 13:04:57,980 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-23 13:04:57,981 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-23 13:04:57,981 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-23 13:04:57,982 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-23 13:04:57,983 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-23 13:04:57,984 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-23 13:04:57,985 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-23 13:04:57,986 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-23 13:04:57,987 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-23 13:04:57,987 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-23 13:04:57,988 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-23 13:04:57,989 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-23 13:04:57,989 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-23 13:04:57,995 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-23 13:04:58,035 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-23 13:04:58,038 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-23 13:04:58,039 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-23 13:04:58,040 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-23 13:04:58,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-23 13:04:58,049 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-23 13:04:58,049 INFO L138 SettingsManager]: * Use SBE=true [2021-11-23 13:04:58,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-23 13:04:58,050 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-23 13:04:58,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-23 13:04:58,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-23 13:04:58,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-23 13:04:58,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-23 13:04:58,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-23 13:04:58,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-23 13:04:58,052 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-23 13:04:58,052 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-23 13:04:58,053 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-23 13:04:58,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-23 13:04:58,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-23 13:04:58,053 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-23 13:04:58,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-23 13:04:58,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:04:58,054 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-23 13:04:58,054 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-23 13:04:58,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-23 13:04:58,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-23 13:04:58,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-23 13:04:58,055 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-23 13:04:58,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-23 13:04:58,057 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-23 13:04:58,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-23 13:04:58,058 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_21ec048d-af3a-409d-9cc0-164eb08edb8d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 24888a06200d8a603c9d35acbb4d9d45bc573dc668676385643552e5524aa211 [2021-11-23 13:04:58,340 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-23 13:04:58,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-23 13:04:58,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-23 13:04:58,366 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-23 13:04:58,367 INFO L275 PluginConnector]: CDTParser initialized [2021-11-23 13:04:58,368 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/../../sv-benchmarks/c/array-fpi/sqmf.c [2021-11-23 13:04:58,435 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/data/950f4161e/41c9131b4a3c45b4b35ad286776fbd9a/FLAG5e23646c8 [2021-11-23 13:04:58,910 INFO L306 CDTParser]: Found 1 translation units. [2021-11-23 13:04:58,912 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/sv-benchmarks/c/array-fpi/sqmf.c [2021-11-23 13:04:58,922 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/data/950f4161e/41c9131b4a3c45b4b35ad286776fbd9a/FLAG5e23646c8 [2021-11-23 13:04:59,252 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/data/950f4161e/41c9131b4a3c45b4b35ad286776fbd9a [2021-11-23 13:04:59,254 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-23 13:04:59,256 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-23 13:04:59,258 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-23 13:04:59,258 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-23 13:04:59,262 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-23 13:04:59,263 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,264 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bcf0fd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59, skipping insertion in model container [2021-11-23 13:04:59,264 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-23 13:04:59,289 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-23 13:04:59,473 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_21ec048d-af3a-409d-9cc0-164eb08edb8d/sv-benchmarks/c/array-fpi/sqmf.c[587,600] [2021-11-23 13:04:59,488 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:04:59,496 INFO L203 MainTranslator]: Completed pre-run [2021-11-23 13:04:59,508 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_21ec048d-af3a-409d-9cc0-164eb08edb8d/sv-benchmarks/c/array-fpi/sqmf.c[587,600] [2021-11-23 13:04:59,516 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-11-23 13:04:59,528 INFO L208 MainTranslator]: Completed translation [2021-11-23 13:04:59,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59 WrapperNode [2021-11-23 13:04:59,528 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-23 13:04:59,530 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-23 13:04:59,530 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-23 13:04:59,530 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-23 13:04:59,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,543 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,564 INFO L137 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 79 [2021-11-23 13:04:59,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-23 13:04:59,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-23 13:04:59,566 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-23 13:04:59,566 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-23 13:04:59,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,582 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,586 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,590 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-23 13:04:59,591 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-23 13:04:59,591 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-23 13:04:59,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-23 13:04:59,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (1/1) ... [2021-11-23 13:04:59,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-23 13:04:59,627 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:04:59,639 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-23 13:04:59,648 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-23 13:04:59,698 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-23 13:04:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-23 13:04:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-23 13:04:59,699 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-23 13:04:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-23 13:04:59,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-23 13:04:59,700 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-23 13:04:59,765 INFO L236 CfgBuilder]: Building ICFG [2021-11-23 13:04:59,767 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-23 13:04:59,891 INFO L277 CfgBuilder]: Performing block encoding [2021-11-23 13:04:59,897 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-23 13:04:59,898 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-23 13:04:59,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:59 BoogieIcfgContainer [2021-11-23 13:04:59,900 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-23 13:04:59,901 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-23 13:04:59,901 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-23 13:04:59,905 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-23 13:04:59,905 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 01:04:59" (1/3) ... [2021-11-23 13:04:59,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b23f646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:04:59, skipping insertion in model container [2021-11-23 13:04:59,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 01:04:59" (2/3) ... [2021-11-23 13:04:59,906 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b23f646 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 01:04:59, skipping insertion in model container [2021-11-23 13:04:59,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:59" (3/3) ... [2021-11-23 13:04:59,908 INFO L111 eAbstractionObserver]: Analyzing ICFG sqmf.c [2021-11-23 13:04:59,921 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-23 13:04:59,921 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-23 13:04:59,962 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-23 13:04:59,969 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 13:04:59,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-23 13:04:59,984 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-23 13:04:59,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:04:59,990 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:04:59,991 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:04:59,992 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:04:59,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:04:59,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2021-11-23 13:05:00,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:00,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686814422] [2021-11-23 13:05:00,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:00,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:00,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-23 13:05:00,144 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 13:05:00,145 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-23 13:05:00,145 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686814422] [2021-11-23 13:05:00,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686814422] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-23 13:05:00,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-23 13:05:00,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-23 13:05:00,148 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [483838909] [2021-11-23 13:05:00,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-23 13:05:00,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-23 13:05:00,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-23 13:05:00,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-23 13:05:00,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-23 13:05:00,184 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-11-23 13:05:00,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-23 13:05:00,199 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-11-23 13:05:00,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-23 13:05:00,201 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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 [2021-11-23 13:05:00,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-23 13:05:00,210 INFO L225 Difference]: With dead ends: 38 [2021-11-23 13:05:00,210 INFO L226 Difference]: Without dead ends: 17 [2021-11-23 13:05:00,213 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 13:05:00,217 INFO L933 BasicCegarLoop]: 24 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, 24 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 13:05:00,218 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-23 13:05:00,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-11-23 13:05:00,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-11-23 13:05:00,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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 13:05:00,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-11-23 13:05:00,250 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2021-11-23 13:05:00,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-23 13:05:00,251 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-11-23 13:05:00,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 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) [2021-11-23 13:05:00,251 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-11-23 13:05:00,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-23 13:05:00,252 INFO L506 BasicCegarLoop]: Found error trace [2021-11-23 13:05:00,252 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-23 13:05:00,253 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-23 13:05:00,253 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-23 13:05:00,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-23 13:05:00,254 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2021-11-23 13:05:00,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-23 13:05:00,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733746280] [2021-11-23 13:05:00,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:00,255 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-23 13:05:00,294 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-23 13:05:00,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1343589880] [2021-11-23 13:05:00,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-23 13:05:00,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:05:00,295 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 [2021-11-23 13:05:00,315 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-23 13:05:00,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-23 13:05:00,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:05:00,406 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-23 13:05:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-23 13:05:00,495 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-23 13:05:00,498 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-23 13:05:00,501 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-23 13:05:00,528 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-23 13:05:00,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-23 13:05:00,718 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2021-11-23 13:05:00,725 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-23 13:05:00,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 01:05:00 BoogieIcfgContainer [2021-11-23 13:05:00,770 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-23 13:05:00,771 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-23 13:05:00,771 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-23 13:05:00,772 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-23 13:05:00,772 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 01:04:59" (3/4) ... [2021-11-23 13:05:00,774 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-23 13:05:00,816 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_21ec048d-af3a-409d-9cc0-164eb08edb8d/bin/uautomizer-wIGwrQj20G/witness.graphml [2021-11-23 13:05:00,816 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-23 13:05:00,817 INFO L158 Benchmark]: Toolchain (without parser) took 1560.62ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 64.7MB in the beginning and 98.9MB in the end (delta: -34.3MB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:05:00,817 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-23 13:05:00,818 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.96ms. Allocated memory is still 102.8MB. Free memory was 64.4MB in the beginning and 76.9MB in the end (delta: -12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-11-23 13:05:00,818 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.39ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 75.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:05:00,819 INFO L158 Benchmark]: Boogie Preprocessor took 24.22ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 73.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:05:00,820 INFO L158 Benchmark]: RCFGBuilder took 309.25ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 63.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-11-23 13:05:00,820 INFO L158 Benchmark]: TraceAbstraction took 869.36ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.0MB in the beginning and 101.0MB in the end (delta: -38.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2021-11-23 13:05:00,821 INFO L158 Benchmark]: Witness Printer took 44.80ms. Allocated memory is still 123.7MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-11-23 13:05:00,824 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 102.8MB. Free memory is still 81.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.96ms. Allocated memory is still 102.8MB. Free memory was 64.4MB in the beginning and 76.9MB in the end (delta: -12.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.39ms. Allocated memory is still 102.8MB. Free memory was 76.9MB in the beginning and 75.1MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.22ms. Allocated memory is still 102.8MB. Free memory was 75.1MB in the beginning and 73.9MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 309.25ms. Allocated memory is still 102.8MB. Free memory was 73.9MB in the beginning and 63.4MB in the end (delta: 10.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 869.36ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 63.0MB in the beginning and 101.0MB in the end (delta: -38.0MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. * Witness Printer took 44.80ms. Allocated memory is still 123.7MB. Free memory was 101.0MB in the beginning and 98.9MB in the end (delta: 2.0MB). 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 *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] b[0] = 0 [L32] a[0] = 0 [L34] i=1 VAL [a={-2:0}, b={-1:0}, i=1, N=1] [L34] COND FALSE !(i