./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/condaf.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/condaf.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3 --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 3299ed11d0a8beab5e242433520cd1a21cc68363 .............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-15 19:06:07,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-15 19:06:07,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-15 19:06:07,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-15 19:06:07,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-15 19:06:07,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-15 19:06:07,549 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-15 19:06:07,553 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-15 19:06:07,564 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-15 19:06:07,571 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-15 19:06:07,573 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-15 19:06:07,574 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-15 19:06:07,574 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-15 19:06:07,575 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-15 19:06:07,577 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-15 19:06:07,578 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-15 19:06:07,579 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-15 19:06:07,597 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-15 19:06:07,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-15 19:06:07,609 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-15 19:06:07,612 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-15 19:06:07,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-15 19:06:07,621 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-15 19:06:07,622 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-15 19:06:07,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-15 19:06:07,639 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-15 19:06:07,639 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-15 19:06:07,641 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-15 19:06:07,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-15 19:06:07,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-15 19:06:07,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-15 19:06:07,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-15 19:06:07,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-15 19:06:07,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-15 19:06:07,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-15 19:06:07,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-15 19:06:07,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-15 19:06:07,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-15 19:06:07,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-15 19:06:07,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-15 19:06:07,652 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-15 19:06:07,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-15 19:06:07,699 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-15 19:06:07,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-15 19:06:07,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-15 19:06:07,703 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-15 19:06:07,705 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-15 19:06:07,705 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-15 19:06:07,705 INFO L138 SettingsManager]: * Use SBE=true [2021-10-15 19:06:07,705 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-15 19:06:07,706 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-15 19:06:07,706 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-15 19:06:07,707 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-15 19:06:07,707 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-15 19:06:07,707 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-15 19:06:07,707 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-15 19:06:07,708 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-15 19:06:07,708 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-15 19:06:07,708 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-15 19:06:07,708 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-15 19:06:07,708 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-15 19:06:07,709 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-15 19:06:07,709 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-15 19:06:07,709 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-15 19:06:07,709 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:06:07,710 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-15 19:06:07,710 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-15 19:06:07,710 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-15 19:06:07,710 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-15 19:06:07,711 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-15 19:06:07,711 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-15 19:06:07,712 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-15 19:06:07,712 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-15 19:06:07,713 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-15 19:06:07,713 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_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3299ed11d0a8beab5e242433520cd1a21cc68363 [2021-10-15 19:06:08,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-15 19:06:08,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-15 19:06:08,068 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-15 19:06:08,069 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-15 19:06:08,070 INFO L275 PluginConnector]: CDTParser initialized [2021-10-15 19:06:08,071 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/../../sv-benchmarks/c/array-fpi/condaf.c [2021-10-15 19:06:08,156 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/data/c56c3e7c4/1bf43904fda44267a07f6286ce7c60de/FLAG1ce8250a9 [2021-10-15 19:06:08,681 INFO L306 CDTParser]: Found 1 translation units. [2021-10-15 19:06:08,683 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/sv-benchmarks/c/array-fpi/condaf.c [2021-10-15 19:06:08,697 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/data/c56c3e7c4/1bf43904fda44267a07f6286ce7c60de/FLAG1ce8250a9 [2021-10-15 19:06:09,028 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/data/c56c3e7c4/1bf43904fda44267a07f6286ce7c60de [2021-10-15 19:06:09,031 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-15 19:06:09,032 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-15 19:06:09,034 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-15 19:06:09,034 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-15 19:06:09,038 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-15 19:06:09,039 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,040 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b192305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09, skipping insertion in model container [2021-10-15 19:06:09,040 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-15 19:06:09,061 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-15 19:06:09,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/sv-benchmarks/c/array-fpi/condaf.c[589,602] [2021-10-15 19:06:09,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:06:09,271 INFO L203 MainTranslator]: Completed pre-run [2021-10-15 19:06:09,282 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/sv-benchmarks/c/array-fpi/condaf.c[589,602] [2021-10-15 19:06:09,291 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-15 19:06:09,305 INFO L208 MainTranslator]: Completed translation [2021-10-15 19:06:09,306 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09 WrapperNode [2021-10-15 19:06:09,306 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-15 19:06:09,307 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-15 19:06:09,308 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-15 19:06:09,308 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-15 19:06:09,316 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,323 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,346 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-15 19:06:09,347 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-15 19:06:09,347 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-15 19:06:09,347 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-15 19:06:09,356 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,356 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,359 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,359 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,366 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,371 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,378 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,381 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-15 19:06:09,381 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-15 19:06:09,382 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-15 19:06:09,382 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-15 19:06:09,389 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (1/1) ... [2021-10-15 19:06:09,398 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-15 19:06:09,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/z3 [2021-10-15 19:06:09,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-15 19:06:09,427 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-15 19:06:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-15 19:06:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-15 19:06:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-15 19:06:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-15 19:06:09,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-15 19:06:09,466 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-15 19:06:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-15 19:06:09,466 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-15 19:06:09,795 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-15 19:06:09,795 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-15 19:06:09,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:09 BoogieIcfgContainer [2021-10-15 19:06:09,798 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-15 19:06:09,800 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-15 19:06:09,801 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-15 19:06:09,805 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-15 19:06:09,805 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 07:06:09" (1/3) ... [2021-10-15 19:06:09,806 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b58eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:06:09, skipping insertion in model container [2021-10-15 19:06:09,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 07:06:09" (2/3) ... [2021-10-15 19:06:09,807 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49b58eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 07:06:09, skipping insertion in model container [2021-10-15 19:06:09,807 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:09" (3/3) ... [2021-10-15 19:06:09,809 INFO L111 eAbstractionObserver]: Analyzing ICFG condaf.c [2021-10-15 19:06:09,815 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-15 19:06:09,816 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-15 19:06:09,903 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-15 19:06:09,916 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, mConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-15 19:06:09,916 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-15 19:06:09,935 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 22 places, 31 transitions, 62 flow [2021-10-15 19:06:09,972 INFO L129 PetriNetUnfolder]: 10/31 cut-off events. [2021-10-15 19:06:09,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:09,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32 conditions, 31 events. 10/31 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 33 event pairs, 0 based on Foata normal form. 0/20 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-15 19:06:09,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 22 places, 31 transitions, 62 flow [2021-10-15 19:06:09,982 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 18 places, 25 transitions, 50 flow [2021-10-15 19:06:09,989 INFO L129 PetriNetUnfolder]: 8/24 cut-off events. [2021-10-15 19:06:09,989 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:09,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:06:09,990 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:09,991 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:06:10,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:10,006 INFO L82 PathProgramCache]: Analyzing trace with hash -923568332, now seen corresponding path program 1 times [2021-10-15 19:06:10,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:10,023 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536677570] [2021-10-15 19:06:10,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:10,024 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:10,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-15 19:06:10,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-15 19:06:10,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-15 19:06:10,354 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536677570] [2021-10-15 19:06:10,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536677570] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-15 19:06:10,356 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-15 19:06:10,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-15 19:06:10,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740075688] [2021-10-15 19:06:10,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-15 19:06:10,370 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-15 19:06:10,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-15 19:06:10,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-15 19:06:10,393 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2021-10-15 19:06:10,397 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 25 transitions, 50 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:10,398 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-15 19:06:10,398 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2021-10-15 19:06:10,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-15 19:06:10,500 INFO L129 PetriNetUnfolder]: 5/29 cut-off events. [2021-10-15 19:06:10,501 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-15 19:06:10,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57 conditions, 29 events. 5/29 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 11 event pairs, 0 based on Foata normal form. 1/25 useless extension candidates. Maximal degree in co-relation 0. Up to 16 conditions per place. [2021-10-15 19:06:10,503 INFO L132 encePairwiseOnDemand]: 17/31 looper letters, 19 selfloop transitions, 7 changer transitions 0/29 dead transitions. [2021-10-15 19:06:10,503 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 29 transitions, 110 flow [2021-10-15 19:06:10,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-15 19:06:10,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-15 19:06:10,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 64 transitions. [2021-10-15 19:06:10,518 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2021-10-15 19:06:10,519 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 64 transitions. [2021-10-15 19:06:10,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 64 transitions. [2021-10-15 19:06:10,521 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-15 19:06:10,523 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 64 transitions. [2021-10-15 19:06:10,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:10,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:10,536 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 31.0) internal successors, (155), 5 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:10,538 INFO L186 Difference]: Start difference. First operand has 18 places, 25 transitions, 50 flow. Second operand 4 states and 64 transitions. [2021-10-15 19:06:10,539 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 29 transitions, 110 flow [2021-10-15 19:06:10,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 29 transitions, 110 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-10-15 19:06:10,547 INFO L242 Difference]: Finished difference. Result has 22 places, 24 transitions, 80 flow [2021-10-15 19:06:10,549 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=22, PETRI_TRANSITIONS=24} [2021-10-15 19:06:10,550 INFO L334 CegarLoopForPetriNet]: 18 programPoint places, 4 predicate places. [2021-10-15 19:06:10,550 INFO L470 AbstractCegarLoop]: Abstraction has has 22 places, 24 transitions, 80 flow [2021-10-15 19:06:10,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-15 19:06:10,551 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-15 19:06:10,551 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-15 19:06:10,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-15 19:06:10,552 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-15 19:06:10,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-15 19:06:10,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1608161903, now seen corresponding path program 1 times [2021-10-15 19:06:10,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-15 19:06:10,554 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247556624] [2021-10-15 19:06:10,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-15 19:06:10,554 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-15 19:06:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:10,669 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-15 19:06:10,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-15 19:06:10,777 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-15 19:06:10,777 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-10-15 19:06:10,780 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-15 19:06:10,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-15 19:06:10,788 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-15 19:06:10,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.10 07:06:10 BoogieIcfgContainer [2021-10-15 19:06:10,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-15 19:06:10,860 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-15 19:06:10,860 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-15 19:06:10,860 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-15 19:06:10,861 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 07:06:09" (3/4) ... [2021-10-15 19:06:10,862 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-15 19:06:10,920 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0089231e-c46f-408c-ad3a-0b7afdc04822/bin/uautomizer-hJ6jxDFKc3/witness.graphml [2021-10-15 19:06:10,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-15 19:06:10,922 INFO L168 Benchmark]: Toolchain (without parser) took 1888.18 ms. Allocated memory was 104.9 MB in the beginning and 144.7 MB in the end (delta: 39.8 MB). Free memory was 62.9 MB in the beginning and 119.5 MB in the end (delta: -56.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:06:10,923 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 78.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-15 19:06:10,923 INFO L168 Benchmark]: CACSL2BoogieTranslator took 272.43 ms. Allocated memory is still 104.9 MB. Free memory was 62.7 MB in the beginning and 79.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:10,924 INFO L168 Benchmark]: Boogie Procedure Inliner took 38.59 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:10,928 INFO L168 Benchmark]: Boogie Preprocessor took 34.16 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 76.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:10,929 INFO L168 Benchmark]: RCFGBuilder took 416.90 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 65.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:10,929 INFO L168 Benchmark]: TraceAbstraction took 1059.09 ms. Allocated memory is still 104.9 MB. Free memory was 65.1 MB in the beginning and 79.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:10,936 INFO L168 Benchmark]: Witness Printer took 60.31 ms. Allocated memory was 104.9 MB in the beginning and 144.7 MB in the end (delta: 39.8 MB). Free memory was 79.4 MB in the beginning and 119.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. [2021-10-15 19:06:10,942 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 104.9 MB. Free memory is still 78.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 272.43 ms. Allocated memory is still 104.9 MB. Free memory was 62.7 MB in the beginning and 79.2 MB in the end (delta: -16.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 38.59 ms. Allocated memory is still 104.9 MB. Free memory was 79.2 MB in the beginning and 77.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 34.16 ms. Allocated memory is still 104.9 MB. Free memory was 77.6 MB in the beginning and 76.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 416.90 ms. Allocated memory is still 104.9 MB. Free memory was 76.2 MB in the beginning and 65.4 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1059.09 ms. Allocated memory is still 104.9 MB. Free memory was 65.1 MB in the beginning and 79.5 MB in the end (delta: -14.4 MB). Peak memory consumption was 36.0 MB. Max. memory is 16.1 GB. * Witness Printer took 60.31 ms. Allocated memory was 104.9 MB in the beginning and 144.7 MB in the end (delta: 39.8 MB). Free memory was 79.4 MB in the beginning and 119.5 MB in the end (delta: -40.1 MB). Peak memory consumption was 5.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] int sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] sum[0] = 0 [L32] i=0 VAL [N=1] [L32] COND TRUE i