./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/lu.cmp.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loops/lu.cmp.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R --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 9f7b9e2e2452a973cdb1a73a9c368f26d19387c763b2be4ad10c01e7a31f6598 --- 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-38b53e6 [2022-11-25 16:43:44,690 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 16:43:44,693 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 16:43:44,732 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 16:43:44,733 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 16:43:44,734 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 16:43:44,735 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 16:43:44,737 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 16:43:44,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 16:43:44,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 16:43:44,741 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 16:43:44,742 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 16:43:44,743 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 16:43:44,744 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 16:43:44,748 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 16:43:44,749 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 16:43:44,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 16:43:44,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 16:43:44,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 16:43:44,763 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 16:43:44,764 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 16:43:44,766 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 16:43:44,772 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 16:43:44,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 16:43:44,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 16:43:44,776 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 16:43:44,777 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 16:43:44,778 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 16:43:44,778 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 16:43:44,779 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 16:43:44,779 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 16:43:44,780 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 16:43:44,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 16:43:44,781 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 16:43:44,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 16:43:44,782 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 16:43:44,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 16:43:44,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 16:43:44,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 16:43:44,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 16:43:44,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 16:43:44,786 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-11-25 16:43:44,807 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 16:43:44,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 16:43:44,807 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 16:43:44,808 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 16:43:44,809 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 16:43:44,809 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 16:43:44,810 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 16:43:44,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 16:43:44,810 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 16:43:44,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 16:43:44,811 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 16:43:44,811 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 16:43:44,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 16:43:44,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 16:43:44,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 16:43:44,812 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 16:43:44,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 16:43:44,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 16:43:44,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 16:43:44,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 16:43:44,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 16:43:44,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 16:43:44,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 16:43:44,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 16:43:44,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:43:44,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 16:43:44,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 16:43:44,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 16:43:44,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 16:43:44,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 16:43:44,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 16:43:44,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 16:43:44,816 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 16:43:44,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 16:43:44,817 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f7b9e2e2452a973cdb1a73a9c368f26d19387c763b2be4ad10c01e7a31f6598 [2022-11-25 16:43:45,181 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 16:43:45,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 16:43:45,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 16:43:45,226 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 16:43:45,227 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 16:43:45,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/loops/lu.cmp.c [2022-11-25 16:43:48,537 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 16:43:48,778 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 16:43:48,778 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/sv-benchmarks/c/loops/lu.cmp.c [2022-11-25 16:43:48,808 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/data/52b9b4238/a2a6bf21d3d04669a90095cb04840630/FLAG547461860 [2022-11-25 16:43:48,836 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/data/52b9b4238/a2a6bf21d3d04669a90095cb04840630 [2022-11-25 16:43:48,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 16:43:48,845 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 16:43:48,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 16:43:48,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 16:43:48,859 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 16:43:48,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:43:48" (1/1) ... [2022-11-25 16:43:48,862 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6b4178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:48, skipping insertion in model container [2022-11-25 16:43:48,862 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 04:43:48" (1/1) ... [2022-11-25 16:43:48,873 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 16:43:48,916 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 16:43:49,043 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_7e68df87-536a-4a7c-b1ba-dff8e882025c/sv-benchmarks/c/loops/lu.cmp.c[318,331] [2022-11-25 16:43:49,080 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:43:49,090 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 16:43:49,100 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_7e68df87-536a-4a7c-b1ba-dff8e882025c/sv-benchmarks/c/loops/lu.cmp.c[318,331] [2022-11-25 16:43:49,127 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 16:43:49,148 INFO L208 MainTranslator]: Completed translation [2022-11-25 16:43:49,149 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49 WrapperNode [2022-11-25 16:43:49,149 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 16:43:49,150 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 16:43:49,150 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 16:43:49,150 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 16:43:49,157 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,201 INFO L138 Inliner]: procedures = 17, calls = 47, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 224 [2022-11-25 16:43:49,201 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 16:43:49,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 16:43:49,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 16:43:49,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 16:43:49,215 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,220 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,221 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,241 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,260 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,263 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,264 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 16:43:49,269 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 16:43:49,269 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 16:43:49,270 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 16:43:49,271 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (1/1) ... [2022-11-25 16:43:49,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 16:43:49,308 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:49,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 16:43:49,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 16:43:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 16:43:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 16:43:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 16:43:49,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2022-11-25 16:43:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2022-11-25 16:43:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 16:43:49,373 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 16:43:49,373 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 16:43:49,464 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 16:43:49,467 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 16:43:49,873 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 16:43:49,882 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 16:43:49,883 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-25 16:43:49,885 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:49 BoogieIcfgContainer [2022-11-25 16:43:49,886 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 16:43:49,889 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 16:43:49,889 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 16:43:49,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 16:43:49,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 04:43:48" (1/3) ... [2022-11-25 16:43:49,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adbc990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:43:49, skipping insertion in model container [2022-11-25 16:43:49,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 04:43:49" (2/3) ... [2022-11-25 16:43:49,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@adbc990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 04:43:49, skipping insertion in model container [2022-11-25 16:43:49,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:49" (3/3) ... [2022-11-25 16:43:49,897 INFO L112 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2022-11-25 16:43:49,920 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 16:43:49,920 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-11-25 16:43:49,981 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 16:43:49,990 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;@3815747a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 16:43:49,990 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-11-25 16:43:49,996 INFO L276 IsEmpty]: Start isEmpty. Operand has 50 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 49 states have internal predecessors, (77), 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) [2022-11-25 16:43:50,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 16:43:50,003 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:50,004 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:50,004 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:50,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:50,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1809811384, now seen corresponding path program 1 times [2022-11-25 16:43:50,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:50,021 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208215213] [2022-11-25 16:43:50,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:50,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:50,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:50,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 16:43:50,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:50,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208215213] [2022-11-25 16:43:50,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208215213] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:50,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:50,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:43:50,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240769687] [2022-11-25 16:43:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:50,276 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:43:50,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:50,312 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:43:50,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:43:50,315 INFO L87 Difference]: Start difference. First operand has 50 states, 48 states have (on average 1.6041666666666667) internal successors, (77), 49 states have internal predecessors, (77), 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 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-25 16:43:50,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:50,390 INFO L93 Difference]: Finished difference Result 102 states and 159 transitions. [2022-11-25 16:43:50,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 16:43:50,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-25 16:43:50,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:50,403 INFO L225 Difference]: With dead ends: 102 [2022-11-25 16:43:50,404 INFO L226 Difference]: Without dead ends: 17 [2022-11-25 16:43:50,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:43:50,412 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 67 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:50,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 114 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:43:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-11-25 16:43:50,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 14. [2022-11-25 16:43:50,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 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) [2022-11-25 16:43:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-25 16:43:50,452 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 7 [2022-11-25 16:43:50,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:50,453 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-25 16:43:50,453 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 1.75) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-25 16:43:50,454 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-25 16:43:50,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 16:43:50,454 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:50,454 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:50,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 16:43:50,455 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:50,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:50,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1948892579, now seen corresponding path program 1 times [2022-11-25 16:43:50,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:50,457 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644936191] [2022-11-25 16:43:50,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:50,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:50,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:50,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 16:43:50,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:50,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644936191] [2022-11-25 16:43:50,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644936191] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 16:43:50,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 16:43:50,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-25 16:43:50,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676880523] [2022-11-25 16:43:50,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 16:43:50,830 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 16:43:50,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:50,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 16:43:50,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 16:43:50,832 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:43:50,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:50,901 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2022-11-25 16:43:50,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-25 16:43:50,902 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-25 16:43:50,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:50,903 INFO L225 Difference]: With dead ends: 26 [2022-11-25 16:43:50,904 INFO L226 Difference]: Without dead ends: 24 [2022-11-25 16:43:50,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-25 16:43:50,906 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 16 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:50,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 28 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 16:43:50,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-11-25 16:43:50,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2022-11-25 16:43:50,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.2380952380952381) internal successors, (26), 21 states have internal predecessors, (26), 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) [2022-11-25 16:43:50,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2022-11-25 16:43:50,923 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 11 [2022-11-25 16:43:50,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:50,924 INFO L495 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2022-11-25 16:43:50,927 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-25 16:43:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2022-11-25 16:43:50,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 16:43:50,928 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:50,929 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 16:43:50,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 16:43:50,929 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:50,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:50,932 INFO L85 PathProgramCache]: Analyzing trace with hash -2121905774, now seen corresponding path program 1 times [2022-11-25 16:43:50,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:50,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292397486] [2022-11-25 16:43:50,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:50,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:51,157 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-11-25 16:43:51,158 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:51,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292397486] [2022-11-25 16:43:51,159 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292397486] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:51,159 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158714853] [2022-11-25 16:43:51,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:51,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:51,160 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:51,167 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:51,187 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 16:43:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:51,314 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 16:43:51,321 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:51,453 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:43:51,453 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:51,523 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-11-25 16:43:51,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158714853] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:51,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:51,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-11-25 16:43:51,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402235563] [2022-11-25 16:43:51,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:51,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-11-25 16:43:51,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:51,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-11-25 16:43:51,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-11-25 16:43:51,534 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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) [2022-11-25 16:43:51,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:51,957 INFO L93 Difference]: Finished difference Result 84 states and 111 transitions. [2022-11-25 16:43:51,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-11-25 16:43:51,958 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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 21 [2022-11-25 16:43:51,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:51,965 INFO L225 Difference]: With dead ends: 84 [2022-11-25 16:43:51,966 INFO L226 Difference]: Without dead ends: 70 [2022-11-25 16:43:51,967 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=201, Invalid=501, Unknown=0, NotChecked=0, Total=702 [2022-11-25 16:43:51,972 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 167 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 91 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 91 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:51,973 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [167 Valid, 32 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 91 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:43:51,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-11-25 16:43:51,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 68. [2022-11-25 16:43:52,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 68 states, 67 states have (on average 1.2388059701492538) internal successors, (83), 67 states have internal predecessors, (83), 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) [2022-11-25 16:43:52,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 83 transitions. [2022-11-25 16:43:52,008 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 83 transitions. Word has length 21 [2022-11-25 16:43:52,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:52,008 INFO L495 AbstractCegarLoop]: Abstraction has 68 states and 83 transitions. [2022-11-25 16:43:52,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 11 states have internal predecessors, (46), 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) [2022-11-25 16:43:52,009 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 83 transitions. [2022-11-25 16:43:52,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-11-25 16:43:52,011 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 16:43:52,011 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 7, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1] [2022-11-25 16:43:52,021 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 16:43:52,218 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:52,218 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-11-25 16:43:52,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 16:43:52,219 INFO L85 PathProgramCache]: Analyzing trace with hash -139112542, now seen corresponding path program 1 times [2022-11-25 16:43:52,219 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 16:43:52,219 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510865972] [2022-11-25 16:43:52,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:52,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 16:43:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:52,695 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 146 proven. 4 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2022-11-25 16:43:52,696 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 16:43:52,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510865972] [2022-11-25 16:43:52,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510865972] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 16:43:52,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323095984] [2022-11-25 16:43:52,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 16:43:52,697 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:52,697 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 16:43:52,699 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 16:43:52,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-11-25 16:43:52,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 16:43:52,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 317 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-25 16:43:52,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 16:43:53,013 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 148 proven. 28 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 16:43:53,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 16:43:53,130 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 148 proven. 28 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2022-11-25 16:43:53,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323095984] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 16:43:53,131 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 16:43:53,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2022-11-25 16:43:53,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712514610] [2022-11-25 16:43:53,131 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 16:43:53,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-11-25 16:43:53,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 16:43:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-11-25 16:43:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-11-25 16:43:53,134 INFO L87 Difference]: Start difference. First operand 68 states and 83 transitions. Second operand has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 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) [2022-11-25 16:43:53,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 16:43:53,575 INFO L93 Difference]: Finished difference Result 205 states and 253 transitions. [2022-11-25 16:43:53,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-11-25 16:43:53,576 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 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 67 [2022-11-25 16:43:53,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 16:43:53,577 INFO L225 Difference]: With dead ends: 205 [2022-11-25 16:43:53,577 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 16:43:53,579 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 187 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=327, Invalid=665, Unknown=0, NotChecked=0, Total=992 [2022-11-25 16:43:53,580 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 56 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-25 16:43:53,583 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 26 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-25 16:43:53,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 16:43:53,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 16:43:53,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2022-11-25 16:43:53,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 16:43:53,586 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 67 [2022-11-25 16:43:53,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 16:43:53,586 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 16:43:53,588 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.055555555555555) internal successors, (73), 18 states have internal predecessors, (73), 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) [2022-11-25 16:43:53,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 16:43:53,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 16:43:53,591 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2022-11-25 16:43:53,606 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-11-25 16:43:53,804 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 16:43:53,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-25 16:43:54,176 INFO L899 garLoopResultBuilder]: For program point L93-2(lines 93 104) no Hoare annotation was computed. [2022-11-25 16:43:54,178 INFO L895 garLoopResultBuilder]: At program point L93-3(lines 93 104) the Hoare annotation is: (let ((.cse0 (= 5 |ULTIMATE.start_main_~n~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0))) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0)))) [2022-11-25 16:43:54,179 INFO L899 garLoopResultBuilder]: For program point L93-4(lines 93 104) no Hoare annotation was computed. [2022-11-25 16:43:54,179 INFO L899 garLoopResultBuilder]: For program point L118-2(lines 118 136) no Hoare annotation was computed. [2022-11-25 16:43:54,179 INFO L895 garLoopResultBuilder]: At program point L118-3(lines 118 136) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,180 INFO L899 garLoopResultBuilder]: For program point L118-4(lines 118 136) no Hoare annotation was computed. [2022-11-25 16:43:54,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-25 16:43:54,183 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-11-25 16:43:54,184 INFO L895 garLoopResultBuilder]: At program point L153(lines 111 155) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,184 INFO L899 garLoopResultBuilder]: For program point L120(line 120) no Hoare annotation was computed. [2022-11-25 16:43:54,184 INFO L899 garLoopResultBuilder]: For program point L129-2(lines 129 135) no Hoare annotation was computed. [2022-11-25 16:43:54,184 INFO L899 garLoopResultBuilder]: For program point L96-2(lines 96 101) no Hoare annotation was computed. [2022-11-25 16:43:54,185 INFO L895 garLoopResultBuilder]: At program point L129-3(lines 129 135) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,186 INFO L895 garLoopResultBuilder]: At program point L96-3(lines 96 101) the Hoare annotation is: (let ((.cse0 (= 5 |ULTIMATE.start_main_~n~0#1|))) (or (and .cse0 (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|)) (and .cse0 (= |ULTIMATE.start_main_~i~0#1| 0)))) [2022-11-25 16:43:54,186 INFO L899 garLoopResultBuilder]: For program point L96-4(lines 96 101) no Hoare annotation was computed. [2022-11-25 16:43:54,191 INFO L899 garLoopResultBuilder]: For program point L121-2(lines 121 128) no Hoare annotation was computed. [2022-11-25 16:43:54,192 INFO L895 garLoopResultBuilder]: At program point L121-3(lines 121 128) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,192 INFO L899 garLoopResultBuilder]: For program point L121-4(lines 121 128) no Hoare annotation was computed. [2022-11-25 16:43:54,192 INFO L899 garLoopResultBuilder]: For program point L80(lines 80 81) no Hoare annotation was computed. [2022-11-25 16:43:54,192 INFO L899 garLoopResultBuilder]: For program point L146-2(lines 146 152) no Hoare annotation was computed. [2022-11-25 16:43:54,194 INFO L895 garLoopResultBuilder]: At program point L146-3(lines 146 152) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,194 INFO L899 garLoopResultBuilder]: For program point L80-2(lines 80 81) no Hoare annotation was computed. [2022-11-25 16:43:54,194 INFO L899 garLoopResultBuilder]: For program point L146-4(lines 146 152) no Hoare annotation was computed. [2022-11-25 16:43:54,194 INFO L899 garLoopResultBuilder]: For program point L138-2(lines 138 144) no Hoare annotation was computed. [2022-11-25 16:43:54,195 INFO L895 garLoopResultBuilder]: At program point L138-3(lines 138 144) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,195 INFO L899 garLoopResultBuilder]: For program point L6(lines 6 8) no Hoare annotation was computed. [2022-11-25 16:43:54,195 INFO L899 garLoopResultBuilder]: For program point L138-4(lines 138 144) no Hoare annotation was computed. [2022-11-25 16:43:54,196 INFO L895 garLoopResultBuilder]: At program point L6-2(lines 5 10) the Hoare annotation is: (and (= 5 |ULTIMATE.start_main_~n~0#1|) (not (= |ULTIMATE.start___VERIFIER_assert_~cond#1| 0)) (<= |ULTIMATE.start_main_~i~0#1| |ULTIMATE.start_main_~n~0#1|)) [2022-11-25 16:43:54,197 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-11-25 16:43:54,197 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-11-25 16:43:54,197 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 7) no Hoare annotation was computed. [2022-11-25 16:43:54,197 INFO L895 garLoopResultBuilder]: At program point L82(lines 76 83) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,198 INFO L899 garLoopResultBuilder]: For program point L99(line 99) no Hoare annotation was computed. [2022-11-25 16:43:54,198 INFO L899 garLoopResultBuilder]: For program point L132-2(lines 132 133) no Hoare annotation was computed. [2022-11-25 16:43:54,199 INFO L899 garLoopResultBuilder]: For program point L99-2(line 99) no Hoare annotation was computed. [2022-11-25 16:43:54,199 INFO L895 garLoopResultBuilder]: At program point L132-3(lines 132 133) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,199 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-25 16:43:54,200 INFO L899 garLoopResultBuilder]: For program point L132-4(lines 132 133) no Hoare annotation was computed. [2022-11-25 16:43:54,200 INFO L899 garLoopResultBuilder]: For program point L124(lines 124 126) no Hoare annotation was computed. [2022-11-25 16:43:54,200 INFO L899 garLoopResultBuilder]: For program point L124-1(lines 124 126) no Hoare annotation was computed. [2022-11-25 16:43:54,201 INFO L899 garLoopResultBuilder]: For program point L149-2(lines 149 150) no Hoare annotation was computed. [2022-11-25 16:43:54,201 INFO L895 garLoopResultBuilder]: At program point L149-3(lines 149 150) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,202 INFO L899 garLoopResultBuilder]: For program point L149-4(lines 149 150) no Hoare annotation was computed. [2022-11-25 16:43:54,202 INFO L895 garLoopResultBuilder]: At program point L108(lines 85 109) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,202 INFO L899 garLoopResultBuilder]: For program point L141-2(lines 141 142) no Hoare annotation was computed. [2022-11-25 16:43:54,202 INFO L895 garLoopResultBuilder]: At program point L141-3(lines 141 142) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,203 INFO L899 garLoopResultBuilder]: For program point L141-4(lines 141 142) no Hoare annotation was computed. [2022-11-25 16:43:54,203 INFO L899 garLoopResultBuilder]: For program point L125-2(lines 125 126) no Hoare annotation was computed. [2022-11-25 16:43:54,203 INFO L895 garLoopResultBuilder]: At program point L125-3(lines 125 126) the Hoare annotation is: (= 5 |ULTIMATE.start_main_~n~0#1|) [2022-11-25 16:43:54,203 INFO L899 garLoopResultBuilder]: For program point L117(line 117) no Hoare annotation was computed. [2022-11-25 16:43:54,207 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-25 16:43:54,210 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 16:43:54,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 04:43:54 BoogieIcfgContainer [2022-11-25 16:43:54,239 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 16:43:54,240 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 16:43:54,240 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 16:43:54,240 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 16:43:54,241 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 04:43:49" (3/4) ... [2022-11-25 16:43:54,245 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 16:43:54,265 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2022-11-25 16:43:54,266 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2022-11-25 16:43:54,266 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-11-25 16:43:54,267 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 16:43:54,358 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 16:43:54,359 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 16:43:54,359 INFO L158 Benchmark]: Toolchain (without parser) took 5514.14ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 141.5MB in the beginning and 155.6MB in the end (delta: -14.1MB). Peak memory consumption was 21.3MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,360 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 16:43:54,360 INFO L158 Benchmark]: CACSL2BoogieTranslator took 294.70ms. Allocated memory is still 169.9MB. Free memory was 141.3MB in the beginning and 128.9MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,361 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.34ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,361 INFO L158 Benchmark]: Boogie Preprocessor took 66.62ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,361 INFO L158 Benchmark]: RCFGBuilder took 616.56ms. Allocated memory is still 169.9MB. Free memory was 124.7MB in the beginning and 107.1MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,362 INFO L158 Benchmark]: TraceAbstraction took 4349.84ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 106.5MB in the beginning and 159.8MB in the end (delta: -53.4MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,362 INFO L158 Benchmark]: Witness Printer took 118.89ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 155.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 16:43:54,366 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 125.8MB. Free memory is still 92.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 294.70ms. Allocated memory is still 169.9MB. Free memory was 141.3MB in the beginning and 128.9MB in the end (delta: 12.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.34ms. Allocated memory is still 169.9MB. Free memory was 128.9MB in the beginning and 126.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.62ms. Allocated memory is still 169.9MB. Free memory was 126.8MB in the beginning and 124.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 616.56ms. Allocated memory is still 169.9MB. Free memory was 124.7MB in the beginning and 107.1MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4349.84ms. Allocated memory was 169.9MB in the beginning and 205.5MB in the end (delta: 35.7MB). Free memory was 106.5MB in the beginning and 159.8MB in the end (delta: -53.4MB). Peak memory consumption was 61.1MB. Max. memory is 16.1GB. * Witness Printer took 118.89ms. Allocated memory is still 205.5MB. Free memory was 159.8MB in the beginning and 155.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. 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 - PositiveResult [Line: 7]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 50 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 4.2s, OverallIterations: 4, TraceHistogramMax: 12, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 306 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 306 mSDsluCounter, 200 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 118 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 243 IncrementalHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 82 mSDtfsCounter, 243 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 223 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 318 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=68occurred in iteration=3, InterpolantAutomatonStates: 45, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 7 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 15 LocationsWithAnnotation, 15 PreInvPairs, 67 NumberOfFragments, 82 HoareAnnotationTreeSize, 15 FomulaSimplifications, 261 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 15 FomulaSimplificationsInter, 562 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 194 NumberOfCodeBlocks, 194 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 274 ConstructedInterpolants, 0 QuantifiedInterpolants, 741 SizeOfPredicates, 4 NumberOfNonLiveVariables, 456 ConjunctsInSsa, 11 ConjunctsInUnsatCore, 8 InterpolantComputations, 2 PerfectInterpolantSequences, 907/979 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: (5 == n && !(cond == 0)) && i <= n - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: (5 == n && !(cond == 0)) || (5 == n && i == 0) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 118]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 85]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 125]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 149]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 96]: Loop Invariant Derived loop invariant: ((5 == n && !(cond == 0)) && i <= n) || (5 == n && i == 0) - InvariantResult [Line: 138]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 132]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 141]: Loop Invariant Derived loop invariant: 5 == n - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 5 == n RESULT: Ultimate proved your program to be correct! [2022-11-25 16:43:54,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7e68df87-536a-4a7c-b1ba-dff8e882025c/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE