./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/array-fpi/sina3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/array-fpi/sina3.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ --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 2aebf3cfbf85ca5d76e40b9ce94a108ab82985532ad1ea09b88a009b3e11ff5a --- 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-dbf71c6-m [2022-10-17 10:42:44,089 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 10:42:44,091 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 10:42:44,140 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 10:42:44,141 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 10:42:44,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 10:42:44,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 10:42:44,151 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 10:42:44,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 10:42:44,160 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 10:42:44,162 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 10:42:44,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 10:42:44,165 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 10:42:44,167 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 10:42:44,169 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 10:42:44,171 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 10:42:44,173 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 10:42:44,174 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 10:42:44,176 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 10:42:44,183 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 10:42:44,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 10:42:44,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 10:42:44,189 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 10:42:44,190 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 10:42:44,200 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 10:42:44,200 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 10:42:44,201 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 10:42:44,203 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 10:42:44,204 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 10:42:44,205 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 10:42:44,205 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 10:42:44,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 10:42:44,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 10:42:44,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 10:42:44,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 10:42:44,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 10:42:44,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 10:42:44,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 10:42:44,214 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 10:42:44,215 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 10:42:44,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 10:42:44,216 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-10-17 10:42:44,264 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 10:42:44,265 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 10:42:44,266 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-17 10:42:44,266 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-17 10:42:44,267 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-17 10:42:44,267 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-17 10:42:44,268 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 10:42:44,268 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 10:42:44,268 INFO L138 SettingsManager]: * Use SBE=true [2022-10-17 10:42:44,268 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 10:42:44,270 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 10:42:44,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 10:42:44,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 10:42:44,270 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 10:42:44,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-17 10:42:44,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 10:42:44,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-17 10:42:44,271 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 10:42:44,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-17 10:42:44,272 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 10:42:44,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-17 10:42:44,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 10:42:44,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-17 10:42:44,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-17 10:42:44,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:44,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 10:42:44,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 10:42:44,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-17 10:42:44,279 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-17 10:42:44,279 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 10:42:44,279 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-17 10:42:44,280 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-10-17 10:42:44,280 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-17 10:42:44,280 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_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2aebf3cfbf85ca5d76e40b9ce94a108ab82985532ad1ea09b88a009b3e11ff5a [2022-10-17 10:42:44,526 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 10:42:44,547 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 10:42:44,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 10:42:44,551 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 10:42:44,552 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 10:42:44,554 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/../../sv-benchmarks/c/array-fpi/sina3.c [2022-10-17 10:42:44,629 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/data/abbc7c3d0/2e2614c6d26a435da24ad069a861921e/FLAG8bf15c613 [2022-10-17 10:42:45,044 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 10:42:45,045 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/sv-benchmarks/c/array-fpi/sina3.c [2022-10-17 10:42:45,058 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/data/abbc7c3d0/2e2614c6d26a435da24ad069a861921e/FLAG8bf15c613 [2022-10-17 10:42:45,436 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/data/abbc7c3d0/2e2614c6d26a435da24ad069a861921e [2022-10-17 10:42:45,438 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 10:42:45,447 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 10:42:45,450 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:45,450 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 10:42:45,455 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 10:42:45,455 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,456 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@517bf71d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45, skipping insertion in model container [2022-10-17 10:42:45,457 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,464 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 10:42:45,478 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 10:42:45,711 WARN L230 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_6f724563-b231-4362-a6fa-5f91e09c0a35/sv-benchmarks/c/array-fpi/sina3.c[588,601] [2022-10-17 10:42:45,736 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:45,746 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 10:42:45,760 WARN L230 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_6f724563-b231-4362-a6fa-5f91e09c0a35/sv-benchmarks/c/array-fpi/sina3.c[588,601] [2022-10-17 10:42:45,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 10:42:45,792 INFO L208 MainTranslator]: Completed translation [2022-10-17 10:42:45,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45 WrapperNode [2022-10-17 10:42:45,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 10:42:45,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:45,795 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 10:42:45,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 10:42:45,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,823 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,854 INFO L138 Inliner]: procedures = 17, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 96 [2022-10-17 10:42:45,855 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 10:42:45,856 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 10:42:45,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 10:42:45,857 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 10:42:45,866 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,867 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,891 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,897 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,903 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 10:42:45,911 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 10:42:45,911 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 10:42:45,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 10:42:45,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (1/1) ... [2022-10-17 10:42:45,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-17 10:42:45,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:45,950 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-17 10:42:45,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-17 10:42:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 10:42:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 10:42:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-17 10:42:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-17 10:42:46,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-17 10:42:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 10:42:46,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 10:42:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-17 10:42:46,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-17 10:42:46,081 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 10:42:46,084 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 10:42:46,283 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 10:42:46,295 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 10:42:46,296 INFO L300 CfgBuilder]: Removed 5 assume(true) statements. [2022-10-17 10:42:46,298 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:46 BoogieIcfgContainer [2022-10-17 10:42:46,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 10:42:46,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-17 10:42:46,320 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-17 10:42:46,324 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-17 10:42:46,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 10:42:45" (1/3) ... [2022-10-17 10:42:46,325 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc47d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:46, skipping insertion in model container [2022-10-17 10:42:46,325 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 10:42:45" (2/3) ... [2022-10-17 10:42:46,326 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bc47d33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 10:42:46, skipping insertion in model container [2022-10-17 10:42:46,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 10:42:46" (3/3) ... [2022-10-17 10:42:46,327 INFO L112 eAbstractionObserver]: Analyzing ICFG sina3.c [2022-10-17 10:42:46,362 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-17 10:42:46,362 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-17 10:42:46,430 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-17 10:42:46,437 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;@1d5a4469, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-17 10:42:46,438 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-17 10:42:46,442 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) [2022-10-17 10:42:46,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 10:42:46,448 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:46,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:46,450 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:46,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:46,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1389277550, now seen corresponding path program 1 times [2022-10-17 10:42:46,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:46,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786652718] [2022-10-17 10:42:46,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:46,466 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:46,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:46,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:46,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:46,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786652718] [2022-10-17 10:42:46,671 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786652718] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:46,671 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:46,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-17 10:42:46,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097849483] [2022-10-17 10:42:46,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:46,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-17 10:42:46,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:46,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-17 10:42:46,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:42:46,729 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) [2022-10-17 10:42:46,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:46,748 INFO L93 Difference]: Finished difference Result 50 states and 72 transitions. [2022-10-17 10:42:46,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-17 10:42:46,751 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 [2022-10-17 10:42:46,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:46,766 INFO L225 Difference]: With dead ends: 50 [2022-10-17 10:42:46,767 INFO L226 Difference]: Without dead ends: 23 [2022-10-17 10:42:46,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-17 10:42:46,775 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 [2022-10-17 10:42:46,777 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] [2022-10-17 10:42:46,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-10-17 10:42:46,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-10-17 10:42:46,810 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) [2022-10-17 10:42:46,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-10-17 10:42:46,813 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 16 [2022-10-17 10:42:46,813 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:46,815 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-10-17 10:42:46,816 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) [2022-10-17 10:42:46,816 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-10-17 10:42:46,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-17 10:42:46,818 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:46,818 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:46,818 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-17 10:42:46,819 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:46,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:46,822 INFO L85 PathProgramCache]: Analyzing trace with hash 796930410, now seen corresponding path program 1 times [2022-10-17 10:42:46,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:46,822 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491351131] [2022-10-17 10:42:46,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:46,823 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:46,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:47,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:47,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:47,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491351131] [2022-10-17 10:42:47,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491351131] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-17 10:42:47,052 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-17 10:42:47,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-17 10:42:47,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584201550] [2022-10-17 10:42:47,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-17 10:42:47,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-17 10:42:47,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:47,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-17 10:42:47,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-17 10:42:47,056 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) [2022-10-17 10:42:47,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:47,137 INFO L93 Difference]: Finished difference Result 53 states and 64 transitions. [2022-10-17 10:42:47,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-17 10:42:47,137 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 [2022-10-17 10:42:47,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:47,138 INFO L225 Difference]: With dead ends: 53 [2022-10-17 10:42:47,139 INFO L226 Difference]: Without dead ends: 37 [2022-10-17 10:42:47,139 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 [2022-10-17 10:42:47,141 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 41 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:47,141 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 17 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:47,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-17 10:42:47,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 27. [2022-10-17 10:42:47,149 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) [2022-10-17 10:42:47,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2022-10-17 10:42:47,150 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 16 [2022-10-17 10:42:47,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:47,150 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2022-10-17 10:42:47,151 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) [2022-10-17 10:42:47,151 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2022-10-17 10:42:47,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-17 10:42:47,152 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:47,152 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] [2022-10-17 10:42:47,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-17 10:42:47,153 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:47,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:47,154 INFO L85 PathProgramCache]: Analyzing trace with hash 495241442, now seen corresponding path program 1 times [2022-10-17 10:42:47,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:47,154 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529978710] [2022-10-17 10:42:47,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:47,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:47,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:49,326 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:49,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:49,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529978710] [2022-10-17 10:42:49,327 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529978710] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:42:49,327 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [974860238] [2022-10-17 10:42:49,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:49,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:49,328 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:49,336 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:42:49,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-17 10:42:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:49,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-17 10:42:49,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:49,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:49,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-17 10:42:49,530 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 10:42:49,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:49,605 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-17 10:42:49,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:49,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:49,957 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2022-10-17 10:42:50,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:50,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:50,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2022-10-17 10:42:50,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:50,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:50,466 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 33 [2022-10-17 10:42:50,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:50,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:50,813 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-17 10:42:50,814 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 66 treesize of output 38 [2022-10-17 10:42:50,854 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:50,854 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:42:51,498 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:51,504 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2022-10-17 10:42:51,510 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:51,511 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:51,512 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:51,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:51,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [974860238] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:42:51,524 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:42:51,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 38 [2022-10-17 10:42:51,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001309638] [2022-10-17 10:42:51,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:42:51,525 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-17 10:42:51,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:51,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-17 10:42:51,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=214, Invalid=1192, Unknown=0, NotChecked=0, Total=1406 [2022-10-17 10:42:51,529 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 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) [2022-10-17 10:42:52,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:52,310 INFO L93 Difference]: Finished difference Result 55 states and 64 transitions. [2022-10-17 10:42:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-17 10:42:52,313 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 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 24 [2022-10-17 10:42:52,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:52,314 INFO L225 Difference]: With dead ends: 55 [2022-10-17 10:42:52,314 INFO L226 Difference]: Without dead ends: 53 [2022-10-17 10:42:52,316 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 23 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 651 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=281, Invalid=1441, Unknown=0, NotChecked=0, Total=1722 [2022-10-17 10:42:52,317 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 43 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 11 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:52,318 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 114 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 334 Invalid, 0 Unknown, 11 Unchecked, 0.5s Time] [2022-10-17 10:42:52,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2022-10-17 10:42:52,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 44. [2022-10-17 10:42:52,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 43 states have (on average 1.2093023255813953) internal successors, (52), 43 states have internal predecessors, (52), 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) [2022-10-17 10:42:52,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 52 transitions. [2022-10-17 10:42:52,330 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 52 transitions. Word has length 24 [2022-10-17 10:42:52,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:52,330 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 52 transitions. [2022-10-17 10:42:52,330 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 1.605263157894737) internal successors, (61), 38 states have internal predecessors, (61), 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) [2022-10-17 10:42:52,331 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 52 transitions. [2022-10-17 10:42:52,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 10:42:52,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:52,332 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:52,372 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:52,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:52,557 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:52,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:52,558 INFO L85 PathProgramCache]: Analyzing trace with hash 831040416, now seen corresponding path program 2 times [2022-10-17 10:42:52,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:52,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [42634962] [2022-10-17 10:42:52,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:52,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:52,651 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:52,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:52,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [42634962] [2022-10-17 10:42:52,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [42634962] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:42:52,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263769118] [2022-10-17 10:42:52,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-17 10:42:52,653 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:52,653 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:52,654 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:42:52,671 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-17 10:42:52,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-17 10:42:52,728 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:42:52,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:42:52,731 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:52,786 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:52,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:42:52,841 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:52,842 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263769118] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:42:52,842 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:42:52,842 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-10-17 10:42:52,842 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804667434] [2022-10-17 10:42:52,842 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:42:52,843 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:42:52,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:52,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:42:52,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:42:52,844 INFO L87 Difference]: Start difference. First operand 44 states and 52 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2022-10-17 10:42:53,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:53,038 INFO L93 Difference]: Finished difference Result 110 states and 128 transitions. [2022-10-17 10:42:53,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:42:53,039 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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 26 [2022-10-17 10:42:53,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:53,041 INFO L225 Difference]: With dead ends: 110 [2022-10-17 10:42:53,043 INFO L226 Difference]: Without dead ends: 66 [2022-10-17 10:42:53,044 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-10-17 10:42:53,046 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 56 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 192 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:53,051 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 61 Invalid, 192 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:53,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-17 10:42:53,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 46. [2022-10-17 10:42:53,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 45 states have (on average 1.1777777777777778) internal successors, (53), 45 states have internal predecessors, (53), 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) [2022-10-17 10:42:53,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 53 transitions. [2022-10-17 10:42:53,066 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 53 transitions. Word has length 26 [2022-10-17 10:42:53,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:53,066 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 53 transitions. [2022-10-17 10:42:53,066 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 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) [2022-10-17 10:42:53,067 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 53 transitions. [2022-10-17 10:42:53,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-17 10:42:53,068 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:53,068 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:53,092 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-17 10:42:53,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:53,280 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:53,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:53,281 INFO L85 PathProgramCache]: Analyzing trace with hash -587916192, now seen corresponding path program 3 times [2022-10-17 10:42:53,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:53,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214822607] [2022-10-17 10:42:53,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:53,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:53,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:53,380 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:53,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214822607] [2022-10-17 10:42:53,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214822607] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:42:53,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979899064] [2022-10-17 10:42:53,380 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-17 10:42:53,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:53,381 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:53,382 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:42:53,402 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-17 10:42:53,464 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-17 10:42:53,464 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:42:53,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-17 10:42:53,467 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:53,522 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:53,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:42:53,578 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 10:42:53,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979899064] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-17 10:42:53,579 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-17 10:42:53,579 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-10-17 10:42:53,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640703817] [2022-10-17 10:42:53,579 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-17 10:42:53,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-17 10:42:53,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-17 10:42:53,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-17 10:42:53,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2022-10-17 10:42:53,582 INFO L87 Difference]: Start difference. First operand 46 states and 53 transitions. Second operand has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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) [2022-10-17 10:42:53,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-17 10:42:53,735 INFO L93 Difference]: Finished difference Result 63 states and 69 transitions. [2022-10-17 10:42:53,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-17 10:42:53,736 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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 26 [2022-10-17 10:42:53,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-17 10:42:53,736 INFO L225 Difference]: With dead ends: 63 [2022-10-17 10:42:53,737 INFO L226 Difference]: Without dead ends: 50 [2022-10-17 10:42:53,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 44 SyntacticMatches, 4 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2022-10-17 10:42:53,738 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 60 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-17 10:42:53,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 53 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-17 10:42:53,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-17 10:42:53,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 35. [2022-10-17 10:42:53,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.1470588235294117) internal successors, (39), 34 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) [2022-10-17 10:42:53,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 39 transitions. [2022-10-17 10:42:53,752 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 39 transitions. Word has length 26 [2022-10-17 10:42:53,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-17 10:42:53,752 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 39 transitions. [2022-10-17 10:42:53,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.727272727272727) internal successors, (41), 11 states have internal predecessors, (41), 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) [2022-10-17 10:42:53,753 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 39 transitions. [2022-10-17 10:42:53,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2022-10-17 10:42:53,754 INFO L187 NwaCegarLoop]: Found error trace [2022-10-17 10:42:53,754 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-17 10:42:53,788 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-17 10:42:53,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:53,981 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-10-17 10:42:53,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 10:42:53,981 INFO L85 PathProgramCache]: Analyzing trace with hash -826292134, now seen corresponding path program 4 times [2022-10-17 10:42:53,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-17 10:42:53,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442603090] [2022-10-17 10:42:53,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-17 10:42:53,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 10:42:54,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 10:42:56,165 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:56,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-17 10:42:56,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442603090] [2022-10-17 10:42:56,166 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442603090] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-17 10:42:56,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215338332] [2022-10-17 10:42:56,166 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-17 10:42:56,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-17 10:42:56,166 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 [2022-10-17 10:42:56,173 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-17 10:42:56,192 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6f724563-b231-4362-a6fa-5f91e09c0a35/bin/uautomizer-J5u9QxTXDZ/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-17 10:42:56,238 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-17 10:42:56,238 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-17 10:42:56,240 WARN L261 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 65 conjunts are in the unsatisfiable core [2022-10-17 10:42:56,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-17 10:42:56,263 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2022-10-17 10:42:56,275 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-17 10:42:56,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,346 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-10-17 10:42:56,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2022-10-17 10:42:56,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,850 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:56,855 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 44 [2022-10-17 10:42:57,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 5 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 54 [2022-10-17 10:42:57,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,350 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:57,351 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,354 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 53 [2022-10-17 10:42:57,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,586 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 58 treesize of output 45 [2022-10-17 10:42:57,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,886 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:57,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:57,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-17 10:42:57,893 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 53 [2022-10-17 10:42:58,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:58,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:58,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:58,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:58,163 INFO L356 Elim1Store]: treesize reduction 25, result has 37.5 percent of original size [2022-10-17 10:42:58,163 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 60 treesize of output 64 [2022-10-17 10:42:58,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:58,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-17 10:42:58,442 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-17 10:42:58,443 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 34 [2022-10-17 10:42:58,486 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 10:42:58,486 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-17 10:43:00,709 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_69| Int)) (or (forall ((v_ArrVal_229 Int)) (= (select (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ c_~N~0 1))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_69|)))) is different from false [2022-10-17 10:43:21,792 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_75| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_75|)) (forall ((v_ArrVal_221 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (v_ArrVal_229 Int)) (or (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_69|)) (= (select (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_75| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_221)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|)) (.cse2 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|))) (let ((.cse3 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse0 (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) .cse2 .cse3))))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ c_~N~0 1)))))) is different from false [2022-10-17 10:43:23,358 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_221 Int) (|v_ULTIMATE.start_main_~i~0#1_69| Int) (|v_ULTIMATE.start_main_~i~0#1_75| Int) (v_ArrVal_229 Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_75|)) (= (select (store (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |c_ULTIMATE.start_main_~i~0#1| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (+ (* |v_ULTIMATE.start_main_~i~0#1_75| 4) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_221)))) (let ((.cse5 (select .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base|))) (let ((.cse1 (select (select .cse4 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse3 (select .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset|))) (let ((.cse2 (select (select (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse3))) |c_ULTIMATE.start_main_~a~0#1.base|) (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)))) (let ((.cse0 (store .cse4 |c_ULTIMATE.start_main_~#sum~0#1.base| (store .cse5 |c_ULTIMATE.start_main_~#sum~0#1.offset| (+ .cse1 .cse2 .cse3))))) (store (select .cse0 |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset| (+ .cse1 .cse2 .cse3 (select (select .cse0 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)))))))) (+ (* |v_ULTIMATE.start_main_~i~0#1_69| 8) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_229) |c_ULTIMATE.start_main_~a~0#1.offset|) (+ c_~N~0 1)) (not (<= 1 |v_ULTIMATE.start_main_~i~0#1_69|)))) is different from false