./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/eqn3f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/eqn3f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg --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 bca44e052eefc6b00b866663e43486330f5a5934fb493dcac1ddb036e3b264d6 ................................................................................................................................................................................................................................................................................................................... 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-b2eff8b [2021-10-28 08:48:40,496 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:48:40,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:48:40,541 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:48:40,542 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:48:40,544 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:48:40,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:48:40,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:48:40,553 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:48:40,555 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:48:40,557 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:48:40,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:48:40,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:48:40,562 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:48:40,564 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:48:40,567 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:48:40,569 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:48:40,571 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:48:40,574 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:48:40,581 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:48:40,584 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:48:40,590 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:48:40,592 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:48:40,594 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:48:40,599 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:48:40,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:48:40,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:48:40,616 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:48:40,621 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:48:40,623 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:48:40,626 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:48:40,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:48:40,630 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:48:40,633 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:48:40,635 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:48:40,637 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:48:40,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:48:40,641 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:48:40,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:48:40,643 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:48:40,644 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:48:40,645 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:48:40,709 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:48:40,710 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:48:40,711 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:48:40,711 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:48:40,717 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:48:40,717 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:48:40,718 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:48:40,718 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:48:40,719 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:48:40,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:48:40,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:48:40,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:48:40,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:48:40,723 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:48:40,723 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:48:40,723 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:48:40,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:48:40,724 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:48:40,724 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:48:40,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:48:40,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:48:40,725 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:48:40,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:48:40,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:48:40,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:48:40,726 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:48:40,727 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:48:40,727 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:48:40,727 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:48:40,730 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:48:40,731 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:48:40,731 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:48:40,731 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_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bca44e052eefc6b00b866663e43486330f5a5934fb493dcac1ddb036e3b264d6 [2021-10-28 08:48:41,168 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:48:41,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:48:41,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:48:41,227 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:48:41,228 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:48:41,229 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/array-fpi/eqn3f.c [2021-10-28 08:48:41,313 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/data/912d6d896/9fa3d9be5e3d499fa7f9fbb0c444f126/FLAG1d9da293a [2021-10-28 08:48:41,878 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:48:41,878 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/sv-benchmarks/c/array-fpi/eqn3f.c [2021-10-28 08:48:41,886 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/data/912d6d896/9fa3d9be5e3d499fa7f9fbb0c444f126/FLAG1d9da293a [2021-10-28 08:48:42,238 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/data/912d6d896/9fa3d9be5e3d499fa7f9fbb0c444f126 [2021-10-28 08:48:42,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:48:42,243 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:48:42,245 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:42,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:48:42,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:48:42,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ff8513 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42, skipping insertion in model container [2021-10-28 08:48:42,254 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,263 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:48:42,282 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:48:42,479 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_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/sv-benchmarks/c/array-fpi/eqn3f.c[588,601] [2021-10-28 08:48:42,518 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:42,571 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:48:42,603 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_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/sv-benchmarks/c/array-fpi/eqn3f.c[588,601] [2021-10-28 08:48:42,652 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:48:42,676 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:48:42,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42 WrapperNode [2021-10-28 08:48:42,678 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:48:42,681 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:48:42,681 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:48:42,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:48:42,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,756 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:48:42,757 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:48:42,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:48:42,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:48:42,769 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,769 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,776 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,796 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,804 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,811 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,820 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:48:42,824 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:48:42,825 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:48:42,825 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:48:42,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (1/1) ... [2021-10-28 08:48:42,838 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:48:42,855 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:42,874 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:48:42,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:48:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:48:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:48:42,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:48:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-28 08:48:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:48:42,931 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:48:42,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:48:43,237 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:48:43,237 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2021-10-28 08:48:43,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:43 BoogieIcfgContainer [2021-10-28 08:48:43,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:48:43,244 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:48:43,244 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:48:43,249 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:48:43,250 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:48:42" (1/3) ... [2021-10-28 08:48:43,251 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458ea2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:48:43, skipping insertion in model container [2021-10-28 08:48:43,251 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:48:42" (2/3) ... [2021-10-28 08:48:43,252 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@458ea2a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:48:43, skipping insertion in model container [2021-10-28 08:48:43,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:43" (3/3) ... [2021-10-28 08:48:43,254 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn3f.c [2021-10-28 08:48:43,261 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:48:43,262 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:48:43,353 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:48:43,362 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 [2021-10-28 08:48:43,362 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-28 08:48:43,403 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) [2021-10-28 08:48:43,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:48:43,425 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:43,426 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:43,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:48:43,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:43,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2021-10-28 08:48:43,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:43,447 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2111727938] [2021-10-28 08:48:43,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:43,449 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:43,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:48:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:48:43,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:48:43,703 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2111727938] [2021-10-28 08:48:43,705 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2111727938] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:48:43,705 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:48:43,706 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-28 08:48:43,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273112420] [2021-10-28 08:48:43,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-28 08:48:43,720 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:48:43,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-28 08:48:43,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-28 08:48:43,747 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) [2021-10-28 08:48:43,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-28 08:48:43,775 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2021-10-28 08:48:43,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-28 08:48:43,778 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 [2021-10-28 08:48:43,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-28 08:48:43,790 INFO L225 Difference]: With dead ends: 38 [2021-10-28 08:48:43,791 INFO L226 Difference]: Without dead ends: 17 [2021-10-28 08:48:43,796 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 [2021-10-28 08:48:43,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2021-10-28 08:48:43,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2021-10-28 08:48:43,835 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) [2021-10-28 08:48:43,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2021-10-28 08:48:43,838 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2021-10-28 08:48:43,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-28 08:48:43,839 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2021-10-28 08:48:43,840 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) [2021-10-28 08:48:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2021-10-28 08:48:43,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-28 08:48:43,841 INFO L505 BasicCegarLoop]: Found error trace [2021-10-28 08:48:43,841 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:48:43,842 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:48:43,842 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:48:43,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:48:43,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2021-10-28 08:48:43,847 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:48:43,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [610521090] [2021-10-28 08:48:43,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:43,848 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:48:43,910 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-10-28 08:48:43,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [895637213] [2021-10-28 08:48:43,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:48:43,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:43,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:48:43,914 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:48:43,949 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:48:44,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:44,038 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-28 08:48:44,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-28 08:48:44,109 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-28 08:48:44,110 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-10-28 08:48:44,116 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:48:44,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-10-28 08:48:44,333 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:48:44,337 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1] [2021-10-28 08:48:44,341 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:48:44,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:48:44 BoogieIcfgContainer [2021-10-28 08:48:44,384 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:48:44,385 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:48:44,385 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:48:44,386 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:48:44,386 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:48:43" (3/4) ... [2021-10-28 08:48:44,389 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-28 08:48:44,462 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e06c5b01-b541-4f8c-ba18-f32bc11da9b1/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:48:44,462 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:48:44,467 INFO L168 Benchmark]: Toolchain (without parser) took 2220.80 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 45.1 MB in the beginning and 42.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 27.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:44,469 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 61.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:44,471 INFO L168 Benchmark]: CACSL2BoogieTranslator took 433.59 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 44.9 MB in the beginning and 84.7 MB in the end (delta: -39.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:44,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 75.34 ms. Allocated memory is still 107.0 MB. Free memory was 84.7 MB in the beginning and 83.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:48:44,484 INFO L168 Benchmark]: Boogie Preprocessor took 66.21 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 81.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:44,487 INFO L168 Benchmark]: RCFGBuilder took 416.93 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 71.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:44,487 INFO L168 Benchmark]: TraceAbstraction took 1140.20 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 44.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:44,488 INFO L168 Benchmark]: Witness Printer took 77.73 ms. Allocated memory is still 107.0 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:48:44,495 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 83.9 MB. Free memory is still 61.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 433.59 ms. Allocated memory was 83.9 MB in the beginning and 107.0 MB in the end (delta: 23.1 MB). Free memory was 44.9 MB in the beginning and 84.7 MB in the end (delta: -39.8 MB). Peak memory consumption was 8.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 75.34 ms. Allocated memory is still 107.0 MB. Free memory was 84.7 MB in the beginning and 83.2 MB in the end (delta: 1.6 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.21 ms. Allocated memory is still 107.0 MB. Free memory was 83.2 MB in the beginning and 81.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 416.93 ms. Allocated memory is still 107.0 MB. Free memory was 81.6 MB in the beginning and 71.2 MB in the end (delta: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1140.20 ms. Allocated memory is still 107.0 MB. Free memory was 70.7 MB in the beginning and 44.4 MB in the end (delta: 26.3 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.1 GB. * Witness Printer took 77.73 ms. Allocated memory is still 107.0 MB. Free memory was 44.4 MB in the beginning and 42.3 MB in the end (delta: 2.1 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 *a = malloc(sizeof(long long)*N); [L29] long long *b = malloc(sizeof(long long)*N); [L31] a[0] = 6 [L32] b[0] = 10 [L34] i=1 VAL [N=1] [L34] COND FALSE !(i