./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/brs1f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 47ea0209 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/brs1f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY --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 397d4cfd150d1b1299128d348dd7ea680fdedf9d0b4471c18114785f57a31b18 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-47ea020 [2021-11-07 08:26:34,495 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-07 08:26:34,498 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-07 08:26:34,547 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-07 08:26:34,548 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-07 08:26:34,552 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-07 08:26:34,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-07 08:26:34,557 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-07 08:26:34,559 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-07 08:26:34,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-07 08:26:34,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-07 08:26:34,564 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-07 08:26:34,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-07 08:26:34,565 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-07 08:26:34,567 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-07 08:26:34,568 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-07 08:26:34,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-07 08:26:34,570 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-07 08:26:34,572 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-07 08:26:34,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-07 08:26:34,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-07 08:26:34,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-07 08:26:34,581 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-07 08:26:34,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-07 08:26:34,587 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-07 08:26:34,591 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-07 08:26:34,591 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-07 08:26:34,592 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-07 08:26:34,594 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-07 08:26:34,595 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-07 08:26:34,595 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-07 08:26:34,596 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-07 08:26:34,598 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-07 08:26:34,599 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-07 08:26:34,601 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-07 08:26:34,601 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-07 08:26:34,602 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-07 08:26:34,602 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-07 08:26:34,602 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-07 08:26:34,603 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-07 08:26:34,604 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-07 08:26:34,605 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-07 08:26:34,647 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-07 08:26:34,647 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-07 08:26:34,648 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-07 08:26:34,648 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-07 08:26:34,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-07 08:26:34,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-07 08:26:34,657 INFO L138 SettingsManager]: * Use SBE=true [2021-11-07 08:26:34,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-07 08:26:34,657 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-07 08:26:34,658 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-07 08:26:34,659 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-07 08:26:34,659 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-07 08:26:34,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-07 08:26:34,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-07 08:26:34,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-07 08:26:34,660 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-07 08:26:34,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-07 08:26:34,660 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-07 08:26:34,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-07 08:26:34,661 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-07 08:26:34,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-07 08:26:34,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-07 08:26:34,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:26:34,662 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-07 08:26:34,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-07 08:26:34,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-07 08:26:34,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-07 08:26:34,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-07 08:26:34,663 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-07 08:26:34,663 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-07 08:26:34,663 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-07 08:26:34,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-07 08:26:34,664 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_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 397d4cfd150d1b1299128d348dd7ea680fdedf9d0b4471c18114785f57a31b18 [2021-11-07 08:26:34,922 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-07 08:26:34,940 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-07 08:26:34,943 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-07 08:26:34,944 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-07 08:26:34,945 INFO L275 PluginConnector]: CDTParser initialized [2021-11-07 08:26:34,946 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/../../sv-benchmarks/c/array-fpi/brs1f.c [2021-11-07 08:26:35,014 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/data/017f6874f/3dc23372f8e34c99bdffad8a2332eacc/FLAGe16abe942 [2021-11-07 08:26:35,420 INFO L306 CDTParser]: Found 1 translation units. [2021-11-07 08:26:35,421 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/sv-benchmarks/c/array-fpi/brs1f.c [2021-11-07 08:26:35,427 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/data/017f6874f/3dc23372f8e34c99bdffad8a2332eacc/FLAGe16abe942 [2021-11-07 08:26:35,830 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/data/017f6874f/3dc23372f8e34c99bdffad8a2332eacc [2021-11-07 08:26:35,833 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-07 08:26:35,834 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-07 08:26:35,836 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-07 08:26:35,836 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-07 08:26:35,839 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-07 08:26:35,840 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:26:35" (1/1) ... [2021-11-07 08:26:35,841 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5423d1f3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:35, skipping insertion in model container [2021-11-07 08:26:35,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 08:26:35" (1/1) ... [2021-11-07 08:26:35,848 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-07 08:26:35,862 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-07 08:26:36,019 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_b5b37e9f-b047-4812-b001-6ffc215384cf/sv-benchmarks/c/array-fpi/brs1f.c[588,601] [2021-11-07 08:26:36,036 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:26:36,043 INFO L203 MainTranslator]: Completed pre-run [2021-11-07 08:26:36,055 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_b5b37e9f-b047-4812-b001-6ffc215384cf/sv-benchmarks/c/array-fpi/brs1f.c[588,601] [2021-11-07 08:26:36,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-07 08:26:36,076 INFO L208 MainTranslator]: Completed translation [2021-11-07 08:26:36,077 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36 WrapperNode [2021-11-07 08:26:36,077 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-07 08:26:36,078 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-07 08:26:36,078 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-07 08:26:36,078 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-07 08:26:36,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,110 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-07 08:26:36,111 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-07 08:26:36,111 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-07 08:26:36,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-07 08:26:36,120 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,120 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,122 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,122 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,132 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,133 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,135 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-07 08:26:36,136 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-07 08:26:36,137 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-07 08:26:36,137 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-07 08:26:36,138 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (1/1) ... [2021-11-07 08:26:36,145 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-07 08:26:36,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/z3 [2021-11-07 08:26:36,168 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-07 08:26:36,199 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-07 08:26:36,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-07 08:26:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-07 08:26:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-07 08:26:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-07 08:26:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-07 08:26:36,216 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-07 08:26:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-07 08:26:36,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-07 08:26:36,499 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-07 08:26:36,500 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-11-07 08:26:36,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:36 BoogieIcfgContainer [2021-11-07 08:26:36,520 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-07 08:26:36,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-07 08:26:36,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-07 08:26:36,525 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-07 08:26:36,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 08:26:35" (1/3) ... [2021-11-07 08:26:36,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f780a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:36, skipping insertion in model container [2021-11-07 08:26:36,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 08:26:36" (2/3) ... [2021-11-07 08:26:36,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f780a8a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 08:26:36, skipping insertion in model container [2021-11-07 08:26:36,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:36" (3/3) ... [2021-11-07 08:26:36,528 INFO L111 eAbstractionObserver]: Analyzing ICFG brs1f.c [2021-11-07 08:26:36,533 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-07 08:26:36,547 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-07 08:26:36,604 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-07 08:26:36,611 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 [2021-11-07 08:26:36,611 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-07 08:26:36,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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) [2021-11-07 08:26:36,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 08:26:36,636 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:26:36,637 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:26:36,637 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:26:36,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:26:36,642 INFO L85 PathProgramCache]: Analyzing trace with hash 361760665, now seen corresponding path program 1 times [2021-11-07 08:26:36,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:26:36,651 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944153021] [2021-11-07 08:26:36,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:26:36,652 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:26:36,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:26:36,785 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:26:36,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:26:36,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944153021] [2021-11-07 08:26:36,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944153021] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:26:36,786 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:26:36,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-07 08:26:36,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038465733] [2021-11-07 08:26:36,792 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-07 08:26:36,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:26:36,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-07 08:26:36,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:26:36,808 INFO L87 Difference]: Start difference. First operand has 20 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 19 states have internal predecessors, (28), 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 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-07 08:26:36,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:26:36,821 INFO L93 Difference]: Finished difference Result 36 states and 50 transitions. [2021-11-07 08:26:36,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-07 08:26:36,823 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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 11 [2021-11-07 08:26:36,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:26:36,830 INFO L225 Difference]: With dead ends: 36 [2021-11-07 08:26:36,830 INFO L226 Difference]: Without dead ends: 16 [2021-11-07 08:26:36,832 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-07 08:26:36,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2021-11-07 08:26:36,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2021-11-07 08:26:36,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 15 states have (on average 1.2) internal successors, (18), 15 states have internal predecessors, (18), 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) [2021-11-07 08:26:36,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2021-11-07 08:26:36,861 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2021-11-07 08:26:36,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:26:36,861 INFO L470 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2021-11-07 08:26:36,861 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.5) internal successors, (11), 2 states have internal predecessors, (11), 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) [2021-11-07 08:26:36,861 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2021-11-07 08:26:36,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-11-07 08:26:36,862 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:26:36,862 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:26:36,863 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-07 08:26:36,863 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:26:36,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:26:36,864 INFO L85 PathProgramCache]: Analyzing trace with hash -447913662, now seen corresponding path program 1 times [2021-11-07 08:26:36,864 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:26:36,864 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486891718] [2021-11-07 08:26:36,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:26:36,865 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:26:36,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-07 08:26:36,995 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-07 08:26:36,995 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-07 08:26:36,995 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486891718] [2021-11-07 08:26:36,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486891718] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-07 08:26:36,996 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-07 08:26:36,996 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-07 08:26:36,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743459746] [2021-11-07 08:26:36,999 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-07 08:26:36,999 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-07 08:26:37,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-07 08:26:37,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:26:37,002 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-07 08:26:37,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-07 08:26:37,066 INFO L93 Difference]: Finished difference Result 30 states and 36 transitions. [2021-11-07 08:26:37,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-07 08:26:37,067 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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 11 [2021-11-07 08:26:37,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-07 08:26:37,069 INFO L225 Difference]: With dead ends: 30 [2021-11-07 08:26:37,069 INFO L226 Difference]: Without dead ends: 22 [2021-11-07 08:26:37,070 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-07 08:26:37,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2021-11-07 08:26:37,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2021-11-07 08:26:37,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 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) [2021-11-07 08:26:37,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2021-11-07 08:26:37,083 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2021-11-07 08:26:37,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-07 08:26:37,083 INFO L470 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2021-11-07 08:26:37,083 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 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) [2021-11-07 08:26:37,084 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2021-11-07 08:26:37,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2021-11-07 08:26:37,084 INFO L505 BasicCegarLoop]: Found error trace [2021-11-07 08:26:37,085 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-07 08:26:37,086 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-07 08:26:37,086 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-07 08:26:37,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-07 08:26:37,087 INFO L85 PathProgramCache]: Analyzing trace with hash 1044113915, now seen corresponding path program 1 times [2021-11-07 08:26:37,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-07 08:26:37,088 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296501919] [2021-11-07 08:26:37,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-07 08:26:37,090 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-07 08:26:37,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:26:37,164 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-07 08:26:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-07 08:26:37,278 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-11-07 08:26:37,279 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-07 08:26:37,280 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-07 08:26:37,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-07 08:26:37,284 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2021-11-07 08:26:37,288 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-07 08:26:37,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 08:26:37 BoogieIcfgContainer [2021-11-07 08:26:37,350 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-07 08:26:37,350 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-07 08:26:37,350 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-07 08:26:37,351 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-07 08:26:37,351 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 08:26:36" (3/4) ... [2021-11-07 08:26:37,353 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-07 08:26:37,400 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b5b37e9f-b047-4812-b001-6ffc215384cf/bin/uautomizer-AkOaLMaTGY/witness.graphml [2021-11-07 08:26:37,401 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-07 08:26:37,402 INFO L168 Benchmark]: Toolchain (without parser) took 1566.99 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 60.8 MB in the beginning and 106.1 MB in the end (delta: -45.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:26:37,403 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 102.8 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-07 08:26:37,403 INFO L168 Benchmark]: CACSL2BoogieTranslator took 241.48 ms. Allocated memory is still 102.8 MB. Free memory was 60.6 MB in the beginning and 76.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:26:37,404 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 102.8 MB. Free memory was 76.7 MB in the beginning and 75.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:26:37,406 INFO L168 Benchmark]: Boogie Preprocessor took 24.44 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 74.1 MB in the end (delta: 824.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:26:37,409 INFO L168 Benchmark]: RCFGBuilder took 383.75 ms. Allocated memory is still 102.8 MB. Free memory was 73.7 MB in the beginning and 63.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-11-07 08:26:37,410 INFO L168 Benchmark]: TraceAbstraction took 827.95 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 62.8 MB in the beginning and 108.1 MB in the end (delta: -45.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. [2021-11-07 08:26:37,410 INFO L168 Benchmark]: Witness Printer took 50.45 ms. Allocated memory is still 132.1 MB. Free memory was 108.1 MB in the beginning and 106.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-07 08:26:37,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 102.8 MB. Free memory is still 77.3 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 241.48 ms. Allocated memory is still 102.8 MB. Free memory was 60.6 MB in the beginning and 76.7 MB in the end (delta: -16.0 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 32.48 ms. Allocated memory is still 102.8 MB. Free memory was 76.7 MB in the beginning and 75.0 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.44 ms. Allocated memory is still 102.8 MB. Free memory was 75.0 MB in the beginning and 74.1 MB in the end (delta: 824.6 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 383.75 ms. Allocated memory is still 102.8 MB. Free memory was 73.7 MB in the beginning and 63.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 827.95 ms. Allocated memory was 102.8 MB in the beginning and 132.1 MB in the end (delta: 29.4 MB). Free memory was 62.8 MB in the beginning and 108.1 MB in the end (delta: -45.3 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.1 GB. * Witness Printer took 50.45 ms. Allocated memory is still 132.1 MB. Free memory was 108.1 MB in the beginning and 106.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L13] COND FALSE !(!cond) VAL [N=1] [L27] int i; [L28] long long sum[1]; [L29] int *a = malloc(sizeof(int)*N); [L31] i=0 VAL [N=1] [L31] COND TRUE i