./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-acceleration/diamond_1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/loop-acceleration/diamond_1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8 --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 278330930f6296a6ef523f9a21bb3281878247b5e50b78eb9077d2b7690716c4 --- 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-2329fc7 [2022-12-13 18:00:15,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:00:15,188 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:00:15,201 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:00:15,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:00:15,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:00:15,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:00:15,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:00:15,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:00:15,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:00:15,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:00:15,207 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:00:15,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:00:15,208 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:00:15,209 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:00:15,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:00:15,210 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:00:15,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:00:15,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:00:15,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:00:15,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:00:15,215 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:00:15,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:00:15,216 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:00:15,218 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:00:15,218 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:00:15,218 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:00:15,219 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:00:15,219 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:00:15,220 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:00:15,220 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:00:15,220 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:00:15,221 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:00:15,221 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:00:15,222 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:00:15,222 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:00:15,223 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:00:15,223 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:00:15,223 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:00:15,224 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:00:15,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:00:15,225 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Reach-32bit-Automizer_Default.epf [2022-12-13 18:00:15,239 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:00:15,239 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:00:15,239 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:00:15,239 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:00:15,240 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:00:15,240 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:00:15,240 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:00:15,240 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:00:15,240 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:00:15,241 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:00:15,241 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:00:15,242 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:00:15,242 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:00:15,242 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:00:15,242 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:00:15,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:00:15,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:00:15,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:00:15,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:00:15,243 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:00:15,243 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_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 278330930f6296a6ef523f9a21bb3281878247b5e50b78eb9077d2b7690716c4 [2022-12-13 18:00:15,441 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:00:15,460 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:00:15,462 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:00:15,463 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:00:15,464 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:00:15,465 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/loop-acceleration/diamond_1-2.c [2022-12-13 18:00:17,979 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:00:18,132 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:00:18,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/sv-benchmarks/c/loop-acceleration/diamond_1-2.c [2022-12-13 18:00:18,136 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/data/f8939c094/ce8a1b90ae174e479a7599917835d5d0/FLAGa3a677438 [2022-12-13 18:00:18,539 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/data/f8939c094/ce8a1b90ae174e479a7599917835d5d0 [2022-12-13 18:00:18,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:00:18,542 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:00:18,543 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:00:18,543 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:00:18,546 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:00:18,547 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4492c5d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18, skipping insertion in model container [2022-12-13 18:00:18,548 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:00:18,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:00:18,668 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_5f563e81-3596-43ff-87e7-bb1a90fb210b/sv-benchmarks/c/loop-acceleration/diamond_1-2.c[373,386] [2022-12-13 18:00:18,678 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:00:18,685 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:00:18,693 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_5f563e81-3596-43ff-87e7-bb1a90fb210b/sv-benchmarks/c/loop-acceleration/diamond_1-2.c[373,386] [2022-12-13 18:00:18,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:00:18,705 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:00:18,706 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18 WrapperNode [2022-12-13 18:00:18,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:00:18,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:00:18,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:00:18,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:00:18,712 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,727 INFO L138 Inliner]: procedures = 13, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 29 [2022-12-13 18:00:18,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:00:18,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:00:18,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:00:18,728 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:00:18,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,735 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,735 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,738 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,740 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,741 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,742 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,743 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:00:18,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:00:18,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:00:18,744 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:00:18,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (1/1) ... [2022-12-13 18:00:18,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:00:18,761 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:18,772 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:00:18,774 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:00:18,805 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:00:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:00:18,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:00:18,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:00:18,857 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:00:18,859 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:00:18,935 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:00:18,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:00:18,940 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 18:00:18,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:00:18 BoogieIcfgContainer [2022-12-13 18:00:18,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:00:18,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:00:18,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:00:18,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:00:18,947 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:00:18" (1/3) ... [2022-12-13 18:00:18,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade9152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:00:18, skipping insertion in model container [2022-12-13 18:00:18,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:00:18" (2/3) ... [2022-12-13 18:00:18,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ade9152 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:00:18, skipping insertion in model container [2022-12-13 18:00:18,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:00:18" (3/3) ... [2022-12-13 18:00:18,950 INFO L112 eAbstractionObserver]: Analyzing ICFG diamond_1-2.c [2022-12-13 18:00:18,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:00:18,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-12-13 18:00:19,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:00:19,009 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;@55f7b1f9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:00:19,009 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-12-13 18:00:19,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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) [2022-12-13 18:00:19,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 18:00:19,016 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:19,016 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:00:19,017 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:19,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:19,020 INFO L85 PathProgramCache]: Analyzing trace with hash 889937703, now seen corresponding path program 1 times [2022-12-13 18:00:19,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:19,027 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888165319] [2022-12-13 18:00:19,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:19,027 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:19,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:19,115 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:19,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:19,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888165319] [2022-12-13 18:00:19,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888165319] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:19,116 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:19,116 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 18:00:19,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868892672] [2022-12-13 18:00:19,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:19,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 18:00:19,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:19,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 18:00:19,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 18:00:19,143 INFO L87 Difference]: Start difference. First operand has 12 states, 10 states have (on average 1.5) internal successors, (15), 11 states have internal predecessors, (15), 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 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-13 18:00:19,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:19,154 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2022-12-13 18:00:19,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 18:00:19,156 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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 6 [2022-12-13 18:00:19,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:19,163 INFO L225 Difference]: With dead ends: 20 [2022-12-13 18:00:19,163 INFO L226 Difference]: Without dead ends: 8 [2022-12-13 18:00:19,166 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 [2022-12-13 18:00:19,169 INFO L413 NwaCegarLoop]: 13 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, 13 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 [2022-12-13 18:00:19,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:00:19,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2022-12-13 18:00:19,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2022-12-13 18:00:19,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8 states, 7 states have (on average 1.2857142857142858) internal successors, (9), 7 states have internal predecessors, (9), 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) [2022-12-13 18:00:19,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2022-12-13 18:00:19,190 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 6 [2022-12-13 18:00:19,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:19,190 INFO L495 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2022-12-13 18:00:19,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 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) [2022-12-13 18:00:19,191 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2022-12-13 18:00:19,191 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-13 18:00:19,191 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:19,191 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 18:00:19,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:00:19,191 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:19,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:19,192 INFO L85 PathProgramCache]: Analyzing trace with hash 889639793, now seen corresponding path program 1 times [2022-12-13 18:00:19,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:19,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069710512] [2022-12-13 18:00:19,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:19,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:19,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:19,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:19,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069710512] [2022-12-13 18:00:19,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069710512] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:19,302 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:19,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:00:19,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471387518] [2022-12-13 18:00:19,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:19,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:19,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:19,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:19,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:19,305 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-13 18:00:19,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:19,318 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2022-12-13 18:00:19,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:19,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-12-13 18:00:19,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:19,321 INFO L225 Difference]: With dead ends: 14 [2022-12-13 18:00:19,321 INFO L226 Difference]: Without dead ends: 10 [2022-12-13 18:00:19,321 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:19,323 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 1 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:19,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 9 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:00:19,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2022-12-13 18:00:19,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 9. [2022-12-13 18:00:19,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9 states, 8 states have (on average 1.25) internal successors, (10), 8 states have internal predecessors, (10), 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) [2022-12-13 18:00:19,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 10 transitions. [2022-12-13 18:00:19,327 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 10 transitions. Word has length 6 [2022-12-13 18:00:19,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:19,327 INFO L495 AbstractCegarLoop]: Abstraction has 9 states and 10 transitions. [2022-12-13 18:00:19,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-12-13 18:00:19,328 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 10 transitions. [2022-12-13 18:00:19,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-13 18:00:19,328 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:19,328 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:19,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 18:00:19,329 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:19,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:19,329 INFO L85 PathProgramCache]: Analyzing trace with hash 297538966, now seen corresponding path program 1 times [2022-12-13 18:00:19,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:19,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [467802502] [2022-12-13 18:00:19,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:19,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:19,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:19,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:19,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [467802502] [2022-12-13 18:00:19,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [467802502] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:19,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597284097] [2022-12-13 18:00:19,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:19,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:19,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:19,454 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:19,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:00:19,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:19,496 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 18:00:19,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:19,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:19,529 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:19,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:19,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597284097] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:19,557 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:00:19,557 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-12-13 18:00:19,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095977598] [2022-12-13 18:00:19,557 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:19,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:00:19,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:19,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:00:19,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:00:19,559 INFO L87 Difference]: Start difference. First operand 9 states and 10 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2022-12-13 18:00:19,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:19,619 INFO L93 Difference]: Finished difference Result 21 states and 29 transitions. [2022-12-13 18:00:19,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:00:19,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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 8 [2022-12-13 18:00:19,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:19,621 INFO L225 Difference]: With dead ends: 21 [2022-12-13 18:00:19,621 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 18:00:19,621 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2022-12-13 18:00:19,622 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:19,623 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 12 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:00:19,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 18:00:19,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2022-12-13 18:00:19,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 19 transitions. [2022-12-13 18:00:19,628 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 19 transitions. Word has length 8 [2022-12-13 18:00:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:19,629 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 19 transitions. [2022-12-13 18:00:19,629 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2022-12-13 18:00:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 19 transitions. [2022-12-13 18:00:19,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 18:00:19,629 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:19,629 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:19,635 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:00:19,830 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:19,832 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:19,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:19,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1979276421, now seen corresponding path program 2 times [2022-12-13 18:00:19,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:19,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255723631] [2022-12-13 18:00:19,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:19,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:19,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:20,083 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:20,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:20,083 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255723631] [2022-12-13 18:00:20,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255723631] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:20,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625831126] [2022-12-13 18:00:20,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:00:20,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:20,084 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:20,085 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:20,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:00:20,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:00:20,120 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:00:20,121 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 11 conjunts are in the unsatisfiable core [2022-12-13 18:00:20,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:20,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:20,271 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:20,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625831126] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:20,271 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:00:20,271 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2022-12-13 18:00:20,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527660853] [2022-12-13 18:00:20,272 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:20,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 18:00:20,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:20,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 18:00:20,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=98, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:00:20,273 INFO L87 Difference]: Start difference. First operand 15 states and 19 transitions. Second operand has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 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) [2022-12-13 18:00:20,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:20,717 INFO L93 Difference]: Finished difference Result 42 states and 62 transitions. [2022-12-13 18:00:20,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-12-13 18:00:20,718 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 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) Word has length 14 [2022-12-13 18:00:20,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:20,718 INFO L225 Difference]: With dead ends: 42 [2022-12-13 18:00:20,718 INFO L226 Difference]: Without dead ends: 38 [2022-12-13 18:00:20,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=110, Invalid=162, Unknown=0, NotChecked=0, Total=272 [2022-12-13 18:00:20,719 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 7 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 30 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:20,720 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 30 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-12-13 18:00:20,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-12-13 18:00:20,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 27. [2022-12-13 18:00:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.4230769230769231) internal successors, (37), 26 states have internal predecessors, (37), 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) [2022-12-13 18:00:20,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 37 transitions. [2022-12-13 18:00:20,725 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 37 transitions. Word has length 14 [2022-12-13 18:00:20,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:20,725 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 37 transitions. [2022-12-13 18:00:20,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.0) internal successors, (26), 13 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) [2022-12-13 18:00:20,725 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-12-13 18:00:20,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 18:00:20,726 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:20,726 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:20,731 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:00:20,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:20,928 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:20,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:20,930 INFO L85 PathProgramCache]: Analyzing trace with hash -1371031502, now seen corresponding path program 1 times [2022-12-13 18:00:20,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:20,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343779183] [2022-12-13 18:00:20,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:20,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:21,013 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-12-13 18:00:21,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:21,014 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343779183] [2022-12-13 18:00:21,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343779183] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:21,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:21,015 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:00:21,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630146719] [2022-12-13 18:00:21,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:21,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:21,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:21,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:21,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:21,017 INFO L87 Difference]: Start difference. First operand 27 states and 37 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:21,045 INFO L93 Difference]: Finished difference Result 59 states and 80 transitions. [2022-12-13 18:00:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:21,046 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20 [2022-12-13 18:00:21,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:21,047 INFO L225 Difference]: With dead ends: 59 [2022-12-13 18:00:21,047 INFO L226 Difference]: Without dead ends: 44 [2022-12-13 18:00:21,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:21,048 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:21,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 14 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:00:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-12-13 18:00:21,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2022-12-13 18:00:21,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 39 states have (on average 1.3076923076923077) internal successors, (51), 39 states have internal predecessors, (51), 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) [2022-12-13 18:00:21,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 51 transitions. [2022-12-13 18:00:21,064 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 51 transitions. Word has length 20 [2022-12-13 18:00:21,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:21,064 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 51 transitions. [2022-12-13 18:00:21,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 18:00:21,065 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 51 transitions. [2022-12-13 18:00:21,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 18:00:21,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:21,065 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:21,066 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 18:00:21,066 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:21,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:21,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1632628134, now seen corresponding path program 1 times [2022-12-13 18:00:21,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:21,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883026405] [2022-12-13 18:00:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:21,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:21,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:21,270 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:21,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:21,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883026405] [2022-12-13 18:00:21,271 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883026405] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:21,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2058413557] [2022-12-13 18:00:21,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:21,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:21,271 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:21,272 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:21,273 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:00:21,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:21,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 17 conjunts are in the unsatisfiable core [2022-12-13 18:00:21,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:21,374 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:21,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:21,519 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:21,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2058413557] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:21,519 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:00:21,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 19 [2022-12-13 18:00:21,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56355451] [2022-12-13 18:00:21,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:21,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-12-13 18:00:21,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:21,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-12-13 18:00:21,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=227, Unknown=0, NotChecked=0, Total=342 [2022-12-13 18:00:21,521 INFO L87 Difference]: Start difference. First operand 40 states and 51 transitions. Second operand has 19 states, 19 states have (on average 2.0) internal successors, (38), 19 states have internal predecessors, (38), 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) [2022-12-13 18:00:22,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:22,659 INFO L93 Difference]: Finished difference Result 119 states and 138 transitions. [2022-12-13 18:00:22,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-12-13 18:00:22,659 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.0) internal successors, (38), 19 states have internal predecessors, (38), 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 20 [2022-12-13 18:00:22,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:22,661 INFO L225 Difference]: With dead ends: 119 [2022-12-13 18:00:22,661 INFO L226 Difference]: Without dead ends: 115 [2022-12-13 18:00:22,662 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=248, Invalid=402, Unknown=0, NotChecked=0, Total=650 [2022-12-13 18:00:22,663 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 5 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:22,663 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 33 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-12-13 18:00:22,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2022-12-13 18:00:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 58. [2022-12-13 18:00:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.2105263157894737) internal successors, (69), 57 states have internal predecessors, (69), 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) [2022-12-13 18:00:22,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 69 transitions. [2022-12-13 18:00:22,675 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 69 transitions. Word has length 20 [2022-12-13 18:00:22,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:22,675 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 69 transitions. [2022-12-13 18:00:22,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.0) internal successors, (38), 19 states have internal predecessors, (38), 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) [2022-12-13 18:00:22,676 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 69 transitions. [2022-12-13 18:00:22,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-12-13 18:00:22,676 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:22,676 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:22,681 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 18:00:22,877 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:22,878 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:22,879 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:22,879 INFO L85 PathProgramCache]: Analyzing trace with hash -1066218333, now seen corresponding path program 3 times [2022-12-13 18:00:22,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:22,880 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528461454] [2022-12-13 18:00:22,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:22,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:22,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:23,102 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:23,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:23,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528461454] [2022-12-13 18:00:23,103 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528461454] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:23,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1712678329] [2022-12-13 18:00:23,103 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:00:23,103 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:23,103 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:23,104 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:23,105 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:00:23,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-12-13 18:00:23,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:00:23,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 23 conjunts are in the unsatisfiable core [2022-12-13 18:00:23,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:23,269 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:23,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:23,505 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:23,505 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1712678329] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:23,505 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:00:23,506 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-12-13 18:00:23,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173444091] [2022-12-13 18:00:23,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:23,506 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-12-13 18:00:23,506 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:23,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-12-13 18:00:23,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=410, Unknown=0, NotChecked=0, Total=600 [2022-12-13 18:00:23,507 INFO L87 Difference]: Start difference. First operand 58 states and 69 transitions. Second operand has 25 states, 25 states have (on average 2.0) internal successors, (50), 25 states have internal predecessors, (50), 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) [2022-12-13 18:00:28,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:28,326 INFO L93 Difference]: Finished difference Result 201 states and 247 transitions. [2022-12-13 18:00:28,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-12-13 18:00:28,326 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.0) internal successors, (50), 25 states have internal predecessors, (50), 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 [2022-12-13 18:00:28,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:28,328 INFO L225 Difference]: With dead ends: 201 [2022-12-13 18:00:28,328 INFO L226 Difference]: Without dead ends: 197 [2022-12-13 18:00:28,329 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=440, Invalid=750, Unknown=0, NotChecked=0, Total=1190 [2022-12-13 18:00:28,330 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 14 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 447 mSolverCounterSat, 98 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 98 IncrementalHoareTripleChecker+Valid, 447 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:28,330 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 45 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [98 Valid, 447 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-12-13 18:00:28,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-12-13 18:00:28,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 82. [2022-12-13 18:00:28,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.2962962962962963) internal successors, (105), 81 states have internal predecessors, (105), 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) [2022-12-13 18:00:28,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 105 transitions. [2022-12-13 18:00:28,344 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 105 transitions. Word has length 26 [2022-12-13 18:00:28,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:28,344 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 105 transitions. [2022-12-13 18:00:28,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.0) internal successors, (50), 25 states have internal predecessors, (50), 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) [2022-12-13 18:00:28,345 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 105 transitions. [2022-12-13 18:00:28,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-12-13 18:00:28,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:28,345 INFO L195 NwaCegarLoop]: trace histogram [15, 13, 2, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:28,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-12-13 18:00:28,546 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:28,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:28,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:28,548 INFO L85 PathProgramCache]: Analyzing trace with hash -477339582, now seen corresponding path program 2 times [2022-12-13 18:00:28,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:28,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936364139] [2022-12-13 18:00:28,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:28,549 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:28,592 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2022-12-13 18:00:28,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:28,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936364139] [2022-12-13 18:00:28,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936364139] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:00:28,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:00:28,593 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 18:00:28,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362715810] [2022-12-13 18:00:28,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:00:28,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:00:28,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:28,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:00:28,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:28,594 INFO L87 Difference]: Start difference. First operand 82 states and 105 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-13 18:00:28,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:28,622 INFO L93 Difference]: Finished difference Result 117 states and 139 transitions. [2022-12-13 18:00:28,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:00:28,622 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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 36 [2022-12-13 18:00:28,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:28,623 INFO L225 Difference]: With dead ends: 117 [2022-12-13 18:00:28,623 INFO L226 Difference]: Without dead ends: 86 [2022-12-13 18:00:28,624 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:00:28,624 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 4 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:28,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 18 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 18:00:28,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-12-13 18:00:28,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 82. [2022-12-13 18:00:28,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 1.037037037037037) internal successors, (84), 81 states have internal predecessors, (84), 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) [2022-12-13 18:00:28,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 84 transitions. [2022-12-13 18:00:28,639 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 84 transitions. Word has length 36 [2022-12-13 18:00:28,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:28,639 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 84 transitions. [2022-12-13 18:00:28,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 states have internal predecessors, (13), 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) [2022-12-13 18:00:28,639 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 84 transitions. [2022-12-13 18:00:28,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2022-12-13 18:00:28,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:28,640 INFO L195 NwaCegarLoop]: trace histogram [16, 16, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:28,640 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 18:00:28,640 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:28,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:28,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1804897185, now seen corresponding path program 2 times [2022-12-13 18:00:28,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:28,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597611509] [2022-12-13 18:00:28,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:28,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:28,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:28,962 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:28,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:28,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597611509] [2022-12-13 18:00:28,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597611509] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:28,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055530400] [2022-12-13 18:00:28,962 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:00:28,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:28,963 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:28,964 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:28,964 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-12-13 18:00:29,018 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:00:29,018 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:00:29,019 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 35 conjunts are in the unsatisfiable core [2022-12-13 18:00:29,021 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:29,117 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:29,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:29,593 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 0 proven. 256 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:29,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055530400] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:29,594 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:00:29,594 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2022-12-13 18:00:29,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155935666] [2022-12-13 18:00:29,594 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:29,594 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-12-13 18:00:29,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:29,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-12-13 18:00:29,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=394, Invalid=938, Unknown=0, NotChecked=0, Total=1332 [2022-12-13 18:00:29,596 INFO L87 Difference]: Start difference. First operand 82 states and 84 transitions. Second operand has 37 states, 37 states have (on average 2.0) internal successors, (74), 37 states have internal predecessors, (74), 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) [2022-12-13 18:00:49,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:00:49,401 INFO L93 Difference]: Finished difference Result 122 states and 141 transitions. [2022-12-13 18:00:49,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-12-13 18:00:49,402 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 2.0) internal successors, (74), 37 states have internal predecessors, (74), 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 38 [2022-12-13 18:00:49,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:00:49,403 INFO L225 Difference]: With dead ends: 122 [2022-12-13 18:00:49,403 INFO L226 Difference]: Without dead ends: 118 [2022-12-13 18:00:49,403 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 210 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=985, Invalid=1770, Unknown=1, NotChecked=0, Total=2756 [2022-12-13 18:00:49,404 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 832 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 832 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-12-13 18:00:49,404 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 66 Invalid, 964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 832 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-12-13 18:00:49,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-12-13 18:00:49,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2022-12-13 18:00:49,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 117 states have (on average 1.0256410256410255) internal successors, (120), 117 states have internal predecessors, (120), 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) [2022-12-13 18:00:49,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 120 transitions. [2022-12-13 18:00:49,429 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 120 transitions. Word has length 38 [2022-12-13 18:00:49,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:00:49,429 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 120 transitions. [2022-12-13 18:00:49,429 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.0) internal successors, (74), 37 states have internal predecessors, (74), 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) [2022-12-13 18:00:49,429 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 120 transitions. [2022-12-13 18:00:49,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2022-12-13 18:00:49,430 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:00:49,431 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 1, 1, 1, 1, 1, 1] [2022-12-13 18:00:49,434 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-12-13 18:00:49,631 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:49,633 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:00:49,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:00:49,634 INFO L85 PathProgramCache]: Analyzing trace with hash -1301187105, now seen corresponding path program 4 times [2022-12-13 18:00:49,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:00:49,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124301276] [2022-12-13 18:00:49,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:00:49,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:00:49,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:00:50,156 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:50,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:00:50,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124301276] [2022-12-13 18:00:50,157 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124301276] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:00:50,157 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [342736324] [2022-12-13 18:00:50,157 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-12-13 18:00:50,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:00:50,157 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:00:50,158 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:00:50,159 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-12-13 18:00:50,205 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-12-13 18:00:50,205 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:00:50,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 47 conjunts are in the unsatisfiable core [2022-12-13 18:00:50,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:00:50,341 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:50,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:00:51,205 INFO L134 CoverageAnalysis]: Checked inductivity of 484 backedges. 0 proven. 484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:00:51,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [342736324] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:00:51,205 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:00:51,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-12-13 18:00:51,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979040389] [2022-12-13 18:00:51,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:00:51,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-12-13 18:00:51,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:00:51,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-12-13 18:00:51,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=670, Invalid=1682, Unknown=0, NotChecked=0, Total=2352 [2022-12-13 18:00:51,208 INFO L87 Difference]: Start difference. First operand 118 states and 120 transitions. Second operand has 49 states, 49 states have (on average 2.0) internal successors, (98), 49 states have internal predecessors, (98), 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) [2022-12-13 18:02:22,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 18:02:22,479 INFO L93 Difference]: Finished difference Result 170 states and 195 transitions. [2022-12-13 18:02:22,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-12-13 18:02:22,480 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 2.0) internal successors, (98), 49 states have internal predecessors, (98), 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 50 [2022-12-13 18:02:22,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 18:02:22,480 INFO L225 Difference]: With dead ends: 170 [2022-12-13 18:02:22,481 INFO L226 Difference]: Without dead ends: 166 [2022-12-13 18:02:22,481 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 90.9s TimeCoverageRelationStatistics Valid=1748, Invalid=3222, Unknown=0, NotChecked=0, Total=4970 [2022-12-13 18:02:22,482 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 26 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 296 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1508 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 296 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2022-12-13 18:02:22,482 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 75 Invalid, 1508 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [296 Valid, 1212 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2022-12-13 18:02:22,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2022-12-13 18:02:22,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2022-12-13 18:02:22,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 1.018181818181818) internal successors, (168), 165 states have internal predecessors, (168), 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) [2022-12-13 18:02:22,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 168 transitions. [2022-12-13 18:02:22,501 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 168 transitions. Word has length 50 [2022-12-13 18:02:22,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 18:02:22,501 INFO L495 AbstractCegarLoop]: Abstraction has 166 states and 168 transitions. [2022-12-13 18:02:22,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 2.0) internal successors, (98), 49 states have internal predecessors, (98), 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) [2022-12-13 18:02:22,502 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 168 transitions. [2022-12-13 18:02:22,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-12-13 18:02:22,504 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:02:22,504 INFO L195 NwaCegarLoop]: trace histogram [34, 34, 1, 1, 1, 1, 1, 1] [2022-12-13 18:02:22,508 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-12-13 18:02:22,705 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-12-13 18:02:22,706 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-12-13 18:02:22,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:02:22,707 INFO L85 PathProgramCache]: Analyzing trace with hash 2069904727, now seen corresponding path program 3 times [2022-12-13 18:02:22,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:02:22,708 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103940908] [2022-12-13 18:02:22,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:02:22,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:02:22,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:02:23,582 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:02:23,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:02:23,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103940908] [2022-12-13 18:02:23,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103940908] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:02:23,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581533764] [2022-12-13 18:02:23,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:02:23,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:02:23,583 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:02:23,583 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:02:23,584 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5f563e81-3596-43ff-87e7-bb1a90fb210b/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-12-13 18:02:25,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 35 check-sat command(s) [2022-12-13 18:02:25,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:02:25,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 81 conjunts are in the unsatisfiable core [2022-12-13 18:02:25,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:02:25,910 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:02:25,910 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:02:32,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1156 backedges. 0 proven. 1156 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:02:32,683 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581533764] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:02:32,683 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:02:32,683 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 40] total 76 [2022-12-13 18:02:32,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916872537] [2022-12-13 18:02:32,683 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:02:32,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-12-13 18:02:32,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:02:32,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-12-13 18:02:32,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1483, Invalid=4217, Unknown=0, NotChecked=0, Total=5700 [2022-12-13 18:02:32,686 INFO L87 Difference]: Start difference. First operand 166 states and 168 transitions. Second operand has 76 states, 76 states have (on average 1.9473684210526316) internal successors, (148), 76 states have internal predecessors, (148), 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) [2022-12-13 18:02:35,882 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse13 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 99)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 99)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 99)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 99)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 99)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 99)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 99)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) 99)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 99)) (.cse29 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 99)) (.cse30 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 99)) (.cse24 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 99)) (.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 99)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) 99)) (.cse33 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 99)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 99)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 99)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) 99)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) 99)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) 99)) (.cse27 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 99)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 99)) (.cse31 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 99)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 99)) (.cse5 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 99)) (.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 99)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) 99)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 99)) (.cse32 (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse23 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 99)) (.cse12 (< (mod .cse13 4294967296) 99))) (and (or (not .cse0) .cse1) (or .cse2 (not .cse3)) (or (not .cse4) .cse5) (or .cse6 (not .cse7)) (or (not .cse1) .cse8) (or (not .cse8) .cse9) (or (not .cse10) .cse11) (or .cse12 (< (mod (mod .cse13 2) 4294967296) 1)) (or .cse3 (not .cse9)) (or .cse14 (not .cse15)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 99) (not .cse6)) (or (not .cse16) .cse17) (or .cse18 (not .cse19)) (or (not .cse20) .cse21) (or .cse22 (not .cse23)) (or (not .cse14) .cse4) (or (not .cse24) .cse25) (or .cse26 (not .cse27)) (or .cse10 (not .cse28)) (or (not .cse26) .cse29) (or .cse30 (not .cse29)) (or (not .cse30) .cse31) (or .cse32 (not .cse33)) (or (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 99) (= (mod (mod |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or .cse24 (not .cse11)) (or (not .cse25) .cse20) (or .cse33 (not .cse18)) (or (not .cse2) .cse16) (or .cse7 (not .cse17)) (or .cse27 (not .cse21)) (or (not .cse31) .cse15) (or (not .cse5) .cse19) (or .cse28 (not .cse22)) (or .cse0 (not .cse32)) (or .cse23 (not .cse12))))) is different from false [2022-12-13 18:02:37,947 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse13 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 99)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 99)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 99)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 99)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 99)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 99)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 99)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) 99)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 99)) (.cse29 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 99)) (.cse30 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 99)) (.cse24 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 99)) (.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 99)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) 99)) (.cse33 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 99)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 99)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 99)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) 99)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) 99)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) 99)) (.cse27 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 99)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 99)) (.cse31 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 99)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 99)) (.cse5 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 99)) (.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 99)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) 99)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 99)) (.cse32 (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse23 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 99)) (.cse12 (< (mod .cse13 4294967296) 99))) (and (or (not .cse0) .cse1) (or .cse2 (not .cse3)) (or (not .cse4) .cse5) (or .cse6 (not .cse7)) (or (not .cse1) .cse8) (or (not .cse8) .cse9) (or (not .cse10) .cse11) (or .cse12 (< (mod (mod .cse13 2) 4294967296) 1)) (or .cse3 (not .cse9)) (or .cse14 (not .cse15)) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 34) 4294967296) 99) (not .cse6)) (or (not .cse16) .cse17) (or .cse18 (not .cse19)) (or (not .cse20) .cse21) (or .cse22 (not .cse23)) (or (not .cse14) .cse4) (or (not .cse24) .cse25) (or .cse26 (not .cse27)) (or .cse10 (not .cse28)) (or (not .cse26) .cse29) (or .cse30 (not .cse29)) (or (not .cse30) .cse31) (or .cse32 (not .cse33)) (or .cse24 (not .cse11)) (or (not .cse25) .cse20) (or .cse33 (not .cse18)) (or (not .cse2) .cse16) (or .cse7 (not .cse17)) (or .cse27 (not .cse21)) (or (not .cse31) .cse15) (or (not .cse5) .cse19) (or .cse28 (not .cse22)) (or .cse0 (not .cse32)) (or .cse23 (not .cse12))))) is different from false [2022-12-13 18:02:40,747 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 99)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 99)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 99)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 99)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 99)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 99)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) 99)) (.cse23 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 99)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 99)) (.cse27 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 99)) (.cse21 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 99)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 99)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) 99)) (.cse30 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 99)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 99)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 99)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) 99)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) 99)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) 99)) (.cse24 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 99)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 99)) (.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 99)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 99)) (.cse5 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 99)) (.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 99)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) 99)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 99)) (.cse29 (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 99)) (.cse31 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (.cse32 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 99))) (and (or (not .cse0) .cse1) (or .cse2 (not .cse3)) (or (not .cse4) .cse5) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 99) (not .cse6)) (or (not .cse1) .cse7) (or (not .cse7) .cse8) (or (not .cse9) .cse10) (or .cse3 (not .cse8)) (or .cse11 (not .cse12)) (or (not .cse13) .cse14) (or .cse15 (not .cse16)) (or (not .cse17) .cse18) (or .cse19 (not .cse20)) (or (not .cse11) .cse4) (or (not .cse21) .cse22) (or .cse23 (not .cse24)) (or .cse9 (not .cse25)) (or (not .cse23) .cse26) (or .cse27 (not .cse26)) (or (not .cse27) .cse28) (or .cse29 (not .cse30)) (or .cse31 (= (mod (mod |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or .cse21 (not .cse10)) (or (not .cse22) .cse17) (or .cse30 (not .cse15)) (or (not .cse2) .cse13) (or .cse6 (not .cse14)) (or .cse24 (not .cse18)) (or (not .cse28) .cse12) (or (not .cse5) .cse16) (or .cse25 (not .cse19)) (or .cse0 (not .cse29)) (or .cse20 (not .cse32)) (or (not .cse31) .cse32))) is different from false [2022-12-13 18:02:42,760 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse12 (+ |c_ULTIMATE.start_main_~x~0#1| 1))) (let ((.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 99)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 99)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 99)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 99)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 99)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 99)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) 99)) (.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 99)) (.cse28 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 99)) (.cse29 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 99)) (.cse23 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 99)) (.cse24 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 99)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) 99)) (.cse32 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 99)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 99)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 99)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) 99)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) 99)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) 99)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 99)) (.cse20 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 99)) (.cse30 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 99)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 99)) (.cse5 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 99)) (.cse27 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 99)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) 99)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 99)) (.cse31 (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 99)) (.cse11 (< (mod .cse12 4294967296) 99))) (and (or (not .cse0) .cse1) (or .cse2 (not .cse3)) (or (not .cse4) .cse5) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 33) 4294967296) 99) (not .cse6)) (or (not .cse1) .cse7) (or (not .cse7) .cse8) (or (not .cse9) .cse10) (or .cse11 (< (mod (mod .cse12 2) 4294967296) 1)) (or .cse3 (not .cse8)) (or .cse13 (not .cse14)) (or (not .cse15) .cse16) (or .cse17 (not .cse18)) (or (not .cse19) .cse20) (or .cse21 (not .cse22)) (or (not .cse13) .cse4) (or (not .cse23) .cse24) (or .cse25 (not .cse26)) (or .cse9 (not .cse27)) (or (not .cse25) .cse28) (or .cse29 (not .cse28)) (or (not .cse29) .cse30) (or .cse31 (not .cse32)) (or (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 99) (= (mod (mod |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or .cse23 (not .cse10)) (or (not .cse24) .cse19) (or .cse32 (not .cse17)) (or (not .cse2) .cse15) (or .cse6 (not .cse16)) (or .cse26 (not .cse20)) (or (not .cse30) .cse14) (or (not .cse5) .cse18) (or .cse27 (not .cse21)) (or .cse0 (not .cse31)) (or .cse22 (not .cse11))))) is different from false [2022-12-13 18:02:44,770 WARN L837 $PredicateComparison]: unable to prove that (let ((.cse1 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 25) 4294967296) 99)) (.cse6 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 26) 4294967296) 99)) (.cse3 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 28) 4294967296) 99)) (.cse7 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 27) 4294967296) 99)) (.cse10 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 17) 4294967296) 99)) (.cse4 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 18) 4294967296) 99)) (.cse8 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 5) 4294967296) 99)) (.cse22 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 12) 4294967296) 99)) (.cse25 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 13) 4294967296) 99)) (.cse26 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 14) 4294967296) 99)) (.cse20 (< (mod (+ 7 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse9 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 6) 4294967296) 99)) (.cse21 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 8) 4294967296) 99)) (.cse16 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 9) 4294967296) 99)) (.cse29 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 22) 4294967296) 99)) (.cse14 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 21) 4294967296) 99)) (.cse2 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 29) 4294967296) 99)) (.cse12 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 30) 4294967296) 99)) (.cse13 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 31) 4294967296) 99)) (.cse23 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 11) 4294967296) 99)) (.cse17 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 10) 4294967296) 99)) (.cse27 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 15) 4294967296) 99)) (.cse11 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 16) 4294967296) 99)) (.cse5 (< (mod (+ 19 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse15 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 20) 4294967296) 99)) (.cse24 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 4) 4294967296) 99)) (.cse18 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 3) 4294967296) 99)) (.cse0 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 24) 4294967296) 99)) (.cse28 (< (mod (+ 23 |c_ULTIMATE.start_main_~x~0#1|) 4294967296) 99)) (.cse19 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296) 99)) (.cse30 (< (mod |c_ULTIMATE.start_main_~x~0#1| 4294967296) 99)) (.cse31 (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 1) 4294967296) 99))) (and (or (not .cse0) .cse1) (or .cse2 (not .cse3)) (or (not .cse4) .cse5) (or (not .cse1) .cse6) (or (not .cse6) .cse7) (or (not .cse8) .cse9) (or .cse3 (not .cse7)) (or .cse10 (not .cse11)) (or (not .cse12) .cse13) (or .cse14 (not .cse15)) (or (not .cse16) .cse17) (or .cse18 (not .cse19)) (or (not .cse10) .cse4) (or (not .cse20) .cse21) (or .cse22 (not .cse23)) (or .cse8 (not .cse24)) (or (not .cse22) .cse25) (or .cse26 (not .cse25)) (or (not .cse26) .cse27) (or .cse28 (not .cse29)) (or .cse30 (= (mod (mod |c_ULTIMATE.start_main_~y~0#1| 2) 4294967296) (mod (mod |c_ULTIMATE.start_main_~x~0#1| 2) 4294967296))) (or .cse20 (not .cse9)) (or (not .cse21) .cse16) (or .cse29 (not .cse14)) (or (not .cse2) .cse12) (or (< (mod (+ |c_ULTIMATE.start_main_~x~0#1| 32) 4294967296) 99) (not .cse13)) (or .cse23 (not .cse17)) (or (not .cse27) .cse11) (or (not .cse5) .cse15) (or .cse24 (not .cse18)) (or .cse0 (not .cse28)) (or .cse19 (not .cse31)) (or (not .cse30) .cse31))) is different from false [2022-12-13 18:08:46,801 WARN L233 SmtUtils]: Spent 5.61m on a formula simplification that was a NOOP. DAG size: 207 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 18:08:48,868 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.76s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 18:08:51,102 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 18:14:28,860 WARN L233 SmtUtils]: Spent 5.13m on a formula simplification that was a NOOP. DAG size: 199 (called from [L 361] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-12-13 18:14:31,765 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2022-12-13 18:14:33,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.25s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers []