./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/indp3f.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/indp3f.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN --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 e65fcf75bc449caf1adc12b98cf1df32d7807702ccc9a83118e61ee3faf8aa64 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:18:24,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:18:24,058 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:18:24,115 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:18:24,115 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:18:24,120 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:18:24,123 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:18:24,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:18:24,129 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:18:24,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:18:24,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:18:24,140 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:18:24,140 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:18:24,145 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:18:24,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:18:24,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:18:24,151 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:18:24,152 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:18:24,153 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:18:24,161 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:18:24,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:18:24,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:18:24,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:18:24,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:18:24,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:18:24,176 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:18:24,176 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:18:24,177 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:18:24,178 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:18:24,179 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:18:24,179 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:18:24,180 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:18:24,181 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:18:24,182 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:18:24,183 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:18:24,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:18:24,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:18:24,184 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:18:24,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:18:24,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:18:24,187 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:18:24,188 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-20 11:18:24,210 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:18:24,211 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:18:24,211 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:18:24,212 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:18:24,212 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:18:24,213 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:18:24,213 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:18:24,214 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:18:24,214 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:18:24,215 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:18:24,215 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:18:24,215 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:18:24,215 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:18:24,216 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:18:24,216 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 11:18:24,216 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:18:24,216 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 11:18:24,217 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:18:24,217 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 11:18:24,217 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:18:24,217 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 11:18:24,218 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:18:24,218 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:18:24,218 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:18:24,218 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:24,219 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:18:24,219 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:18:24,219 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 11:18:24,220 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:18:24,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:18:24,220 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 11:18:24,220 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 11:18:24,221 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 11:18:24,221 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_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e65fcf75bc449caf1adc12b98cf1df32d7807702ccc9a83118e61ee3faf8aa64 [2022-11-20 11:18:24,605 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:18:24,638 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:18:24,642 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:18:24,643 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:18:24,644 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:18:24,645 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/array-fpi/indp3f.c [2022-11-20 11:18:27,877 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:18:28,108 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:18:28,109 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/sv-benchmarks/c/array-fpi/indp3f.c [2022-11-20 11:18:28,116 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/data/a7fc45369/c20ef5e6adbf4bfd8b120fa1c37e0531/FLAG5dd5a0b3f [2022-11-20 11:18:28,136 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/data/a7fc45369/c20ef5e6adbf4bfd8b120fa1c37e0531 [2022-11-20 11:18:28,138 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:18:28,140 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:18:28,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:28,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:18:28,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:18:28,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,148 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51b4d32b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28, skipping insertion in model container [2022-11-20 11:18:28,148 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:18:28,172 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:18:28,368 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/sv-benchmarks/c/array-fpi/indp3f.c[589,602] [2022-11-20 11:18:28,432 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:28,444 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:18:28,459 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/sv-benchmarks/c/array-fpi/indp3f.c[589,602] [2022-11-20 11:18:28,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:18:28,483 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:18:28,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28 WrapperNode [2022-11-20 11:18:28,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:18:28,485 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:28,485 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:18:28,485 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:18:28,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,502 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,525 INFO L138 Inliner]: procedures = 16, calls = 18, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 85 [2022-11-20 11:18:28,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:18:28,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:18:28,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:18:28,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:18:28,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,539 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,540 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:18:28,554 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:18:28,555 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:18:28,555 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:18:28,556 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (1/1) ... [2022-11-20 11:18:28,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:18:28,575 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:28,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:18:28,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:18:28,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:18:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:18:28,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:18:28,649 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 11:18:28,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:18:28,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:18:28,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:18:28,731 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:18:28,734 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:18:28,912 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:18:28,920 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:18:28,920 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-11-20 11:18:28,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:28 BoogieIcfgContainer [2022-11-20 11:18:28,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:18:28,926 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:18:28,926 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:18:28,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:18:28,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:18:28" (1/3) ... [2022-11-20 11:18:28,931 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cad252e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:28, skipping insertion in model container [2022-11-20 11:18:28,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:18:28" (2/3) ... [2022-11-20 11:18:28,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cad252e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:18:28, skipping insertion in model container [2022-11-20 11:18:28,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:28" (3/3) ... [2022-11-20 11:18:28,934 INFO L112 eAbstractionObserver]: Analyzing ICFG indp3f.c [2022-11-20 11:18:28,957 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:18:28,958 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-20 11:18:29,017 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:18:29,026 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@41ac915, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:18:29,027 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-20 11:18:29,031 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:29,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:18:29,040 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:29,041 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:29,042 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:29,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:29,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2022-11-20 11:18:29,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:29,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032727364] [2022-11-20 11:18:29,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:29,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:29,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032727364] [2022-11-20 11:18:29,333 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 11:18:29,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1632559342] [2022-11-20 11:18:29,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:29,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:29,336 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:29,343 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:18:29,378 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-20 11:18:29,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:29,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:18:29,517 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:18:29,555 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:29,555 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:18:29,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1632559342] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:29,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:29,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:18:29,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581547030] [2022-11-20 11:18:29,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:29,567 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:18:29,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:29,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:18:29,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:18:29,644 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.56) internal successors, (39), 26 states have internal predecessors, (39), 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 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:29,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:29,670 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-11-20 11:18:29,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:18:29,674 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 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 16 [2022-11-20 11:18:29,675 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:29,686 INFO L225 Difference]: With dead ends: 50 [2022-11-20 11:18:29,686 INFO L226 Difference]: Without dead ends: 23 [2022-11-20 11:18:29,690 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:18:29,700 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:29,702 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:18:29,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-11-20 11:18:29,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-11-20 11:18:29,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:29,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-11-20 11:18:29,752 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2022-11-20 11:18:29,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:29,753 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-11-20 11:18:29,755 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 8.0) internal successors, (16), 2 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:29,755 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-11-20 11:18:29,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 11:18:29,758 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:29,758 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:29,772 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-20 11:18:29,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-11-20 11:18:29,965 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:29,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:29,967 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2022-11-20 11:18:29,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:29,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443190663] [2022-11-20 11:18:29,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:29,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:30,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:18:30,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443190663] [2022-11-20 11:18:30,018 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-11-20 11:18:30,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132161361] [2022-11-20 11:18:30,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:30,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:30,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:30,021 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:18:30,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-20 11:18:30,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:18:30,146 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:18:30,148 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:18:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:18:30,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:18:30,222 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132161361] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:18:30,223 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:18:30,223 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:18:30,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85683787] [2022-11-20 11:18:30,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:18:30,225 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:18:30,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:18:30,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:18:30,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:18:30,227 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:30,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:18:30,339 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-11-20 11:18:30,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 11:18:30,340 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 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 16 [2022-11-20 11:18:30,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:18:30,343 INFO L225 Difference]: With dead ends: 53 [2022-11-20 11:18:30,343 INFO L226 Difference]: Without dead ends: 37 [2022-11-20 11:18:30,344 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:18:30,346 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 33 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:18:30,347 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 17 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:18:30,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-11-20 11:18:30,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-11-20 11:18:30,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.1923076923076923) internal successors, (31), 26 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:30,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-11-20 11:18:30,356 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-11-20 11:18:30,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:18:30,356 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-11-20 11:18:30,357 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:18:30,357 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-11-20 11:18:30,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-11-20 11:18:30,358 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:18:30,358 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:18:30,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:18:30,562 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:30,563 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-20 11:18:30,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:18:30,564 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2022-11-20 11:18:30,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:18:30,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635128685] [2022-11-20 11:18:30,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:30,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:18:30,598 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-20 11:18:30,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1394417636] [2022-11-20 11:18:30,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:18:30,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-20 11:18:30,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:18:30,600 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-20 11:18:30,642 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-11-20 11:18:30,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:18:30,723 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:18:30,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:18:30,783 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:18:30,783 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:18:30,784 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-20 11:18:30,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-11-20 11:18:30,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-11-20 11:18:30,996 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-20 11:18:30,999 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:18:31,024 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:18:31 BoogieIcfgContainer [2022-11-20 11:18:31,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:18:31,025 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:18:31,025 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:18:31,025 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:18:31,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:18:28" (3/4) ... [2022-11-20 11:18:31,028 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-20 11:18:31,077 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b9964063-5375-4c06-baa8-e9b69b4fa7fc/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 11:18:31,082 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:18:31,083 INFO L158 Benchmark]: Toolchain (without parser) took 2943.18ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 76.1MB in the end (delta: 68.4MB). Peak memory consumption was 65.3MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,084 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:18:31,084 INFO L158 Benchmark]: CACSL2BoogieTranslator took 342.71ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 143.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,085 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.14ms. Allocated memory is still 174.1MB. Free memory was 143.1MB in the beginning and 142.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,085 INFO L158 Benchmark]: Boogie Preprocessor took 27.94ms. Allocated memory is still 174.1MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,085 INFO L158 Benchmark]: RCFGBuilder took 368.73ms. Allocated memory is still 174.1MB. Free memory was 139.9MB in the beginning and 128.5MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,086 INFO L158 Benchmark]: TraceAbstraction took 2098.50ms. Allocated memory is still 174.1MB. Free memory was 127.3MB in the beginning and 78.2MB in the end (delta: 49.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,086 INFO L158 Benchmark]: Witness Printer took 57.70ms. Allocated memory is still 174.1MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:18:31,089 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 130.0MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 342.71ms. Allocated memory is still 174.1MB. Free memory was 144.5MB in the beginning and 143.1MB in the end (delta: 1.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.14ms. Allocated memory is still 174.1MB. Free memory was 143.1MB in the beginning and 142.0MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.94ms. Allocated memory is still 174.1MB. Free memory was 142.0MB in the beginning and 139.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 368.73ms. Allocated memory is still 174.1MB. Free memory was 139.9MB in the beginning and 128.5MB in the end (delta: 11.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2098.50ms. Allocated memory is still 174.1MB. Free memory was 127.3MB in the beginning and 78.2MB in the end (delta: 49.1MB). Peak memory consumption was 48.2MB. Max. memory is 16.1GB. * Witness Printer took 57.70ms. Allocated memory is still 174.1MB. Free memory was 78.2MB in the beginning and 76.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 15]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L19] int N; VAL [N=0] [L23] N = __VERIFIER_nondet_int() [L24] COND FALSE !(N <= 0) [L25] CALL assume_abort_if_not(N <= 2147483647/sizeof(int)) [L13] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1, N=1] [L25] RET assume_abort_if_not(N <= 2147483647/sizeof(int)) [L27] int i; [L28] long long *a = malloc(sizeof(long long)*N); [L30] i=0 VAL [a={-1:0}, i=0, N=1] [L30] COND TRUE i