./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops-crafted-1/nested5-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops-crafted-1/nested5-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5ad780effdbe313ff13ad5bc7233d50356fbf06f53a57c18cd85a4aa46126eb2 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:53:46,631 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:53:46,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:53:46,676 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:53:46,677 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:53:46,678 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:53:46,680 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:53:46,683 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:53:46,685 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:53:46,687 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:53:46,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:53:46,690 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:53:46,690 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:53:46,692 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:53:46,694 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:53:46,695 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:53:46,697 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:53:46,698 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:53:46,709 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:53:46,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:53:46,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:53:46,720 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:53:46,722 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:53:46,723 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:53:46,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:53:46,729 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:53:46,729 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:53:46,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:53:46,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:53:46,733 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:53:46,733 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:53:46,734 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:53:46,740 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:53:46,743 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:53:46,746 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:53:46,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:53:46,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:53:46,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:53:46,749 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:53:46,750 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:53:46,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:53:46,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:53:46,806 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:53:46,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:53:46,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:53:46,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:53:46,816 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:53:46,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:53:46,817 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:53:46,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:53:46,827 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:53:46,827 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:53:46,827 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:53:46,828 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:53:46,828 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:53:46,828 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:53:46,829 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:53:46,829 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:53:46,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:53:46,830 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:53:46,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:53:46,831 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:53:46,831 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:53:46,831 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:53:46,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:53:46,832 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:53:46,832 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:53:46,832 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:53:46,833 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:53:46,833 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:53:46,833 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:53:46,833 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:53:46,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:53:46,834 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:53:46,834 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:53:46,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:53:46,835 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:53:46,835 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:53:46,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:53:46,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:53:46,836 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:53:46,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:53:46,837 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ad780effdbe313ff13ad5bc7233d50356fbf06f53a57c18cd85a4aa46126eb2 [2021-11-19 14:53:47,161 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:53:47,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:53:47,190 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:53:47,192 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:53:47,193 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:53:47,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/loops-crafted-1/nested5-2.c [2021-11-19 14:53:47,295 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/data/0b23a86ad/1c8d28a4a3a546d692c0da202b9896e6/FLAG3b2fd5e5b [2021-11-19 14:53:47,863 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:53:47,864 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/sv-benchmarks/c/loops-crafted-1/nested5-2.c [2021-11-19 14:53:47,871 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/data/0b23a86ad/1c8d28a4a3a546d692c0da202b9896e6/FLAG3b2fd5e5b [2021-11-19 14:53:48,218 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/data/0b23a86ad/1c8d28a4a3a546d692c0da202b9896e6 [2021-11-19 14:53:48,221 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:53:48,224 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:53:48,229 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:53:48,230 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:53:48,234 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:53:48,235 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,237 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e85a204 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48, skipping insertion in model container [2021-11-19 14:53:48,238 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:53:48,275 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:53:48,454 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/sv-benchmarks/c/loops-crafted-1/nested5-2.c[321,334] [2021-11-19 14:53:48,474 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:53:48,483 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:53:48,498 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/sv-benchmarks/c/loops-crafted-1/nested5-2.c[321,334] [2021-11-19 14:53:48,505 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:53:48,519 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:53:48,519 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48 WrapperNode [2021-11-19 14:53:48,519 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:53:48,521 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:53:48,521 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:53:48,521 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:53:48,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,538 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,560 INFO L137 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 64 [2021-11-19 14:53:48,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:53:48,562 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:53:48,562 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:53:48,562 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:53:48,573 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,573 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,575 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,579 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,585 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,587 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,589 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:53:48,590 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:53:48,590 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:53:48,591 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:53:48,592 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (1/1) ... [2021-11-19 14:53:48,601 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:53:48,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:53:48,649 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:53:48,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:53:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:53:48,710 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:53:48,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:53:48,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:53:48,792 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:53:48,794 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:53:48,953 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:53:48,989 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:53:48,990 INFO L301 CfgBuilder]: Removed 5 assume(true) statements. [2021-11-19 14:53:48,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:53:48 BoogieIcfgContainer [2021-11-19 14:53:48,993 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:53:48,996 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:53:48,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:53:49,000 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:53:49,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:53:48" (1/3) ... [2021-11-19 14:53:49,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d19c0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:53:49, skipping insertion in model container [2021-11-19 14:53:49,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:53:48" (2/3) ... [2021-11-19 14:53:49,002 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d19c0d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:53:49, skipping insertion in model container [2021-11-19 14:53:49,002 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:53:48" (3/3) ... [2021-11-19 14:53:49,004 INFO L111 eAbstractionObserver]: Analyzing ICFG nested5-2.c [2021-11-19 14:53:49,011 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:53:49,011 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:53:49,072 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:53:49,082 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-19 14:53:49,082 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:53:49,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-19 14:53:49,125 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:49,126 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:49,127 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:49,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:49,144 INFO L85 PathProgramCache]: Analyzing trace with hash -614732004, now seen corresponding path program 1 times [2021-11-19 14:53:49,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:53:49,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405600707] [2021-11-19 14:53:49,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:49,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:53:49,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:49,489 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:49,490 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:53:49,490 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405600707] [2021-11-19 14:53:49,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405600707] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:53:49,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:53:49,492 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:53:49,494 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927856623] [2021-11-19 14:53:49,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:53:49,500 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:53:49,500 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:53:49,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:53:49,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:53:49,569 INFO L87 Difference]: Start difference. First operand has 11 states, 9 states have (on average 1.7777777777777777) internal successors, (16), 10 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:49,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:49,661 INFO L93 Difference]: Finished difference Result 27 states and 41 transitions. [2021-11-19 14:53:49,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:53:49,672 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 [2021-11-19 14:53:49,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:49,681 INFO L225 Difference]: With dead ends: 27 [2021-11-19 14:53:49,682 INFO L226 Difference]: Without dead ends: 15 [2021-11-19 14:53:49,700 INFO L932 BasicCegarLoop]: 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 [2021-11-19 14:53:49,705 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 7 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:49,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 13 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-11-19 14:53:49,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2021-11-19 14:53:49,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 11. [2021-11-19 14:53:49,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 10 states have (on average 1.5) internal successors, (15), 10 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) [2021-11-19 14:53:49,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 15 transitions. [2021-11-19 14:53:49,779 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 15 transitions. Word has length 8 [2021-11-19 14:53:49,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:49,780 INFO L470 AbstractCegarLoop]: Abstraction has 11 states and 15 transitions. [2021-11-19 14:53:49,780 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:49,782 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 15 transitions. [2021-11-19 14:53:49,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-11-19 14:53:49,783 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:49,783 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:49,784 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:53:49,785 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:49,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1877140079, now seen corresponding path program 1 times [2021-11-19 14:53:49,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:53:49,791 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645454966] [2021-11-19 14:53:49,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:49,792 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:53:49,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:49,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:49,966 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:53:49,966 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645454966] [2021-11-19 14:53:49,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [645454966] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:53:49,967 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [648414592] [2021-11-19 14:53:49,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:49,968 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:49,968 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:53:49,980 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:53:50,005 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:53:50,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:50,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-19 14:53:50,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:50,145 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:50,146 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:50,232 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:50,232 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [648414592] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:53:50,232 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1324598831] [2021-11-19 14:53:50,265 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 14:53:50,265 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:53:50,271 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:53:50,294 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:53:50,295 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:53:50,372 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:50,389 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-19 14:53:50,397 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:50,408 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-19 14:53:50,422 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:50,437 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:53:50,449 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:50,455 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:53:50,470 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:50,486 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:53:50,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,591 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,658 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,722 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:50,756 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:53:50,771 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,862 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,867 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,869 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,899 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:50,914 INFO L180 QuantifierPusher]: treesize reduction 36, result has 50.0 percent of original size [2021-11-19 14:53:50,918 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 14:53:50,930 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:53:51,462 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:53:51,463 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:53:51,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2021-11-19 14:53:51,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280728868] [2021-11-19 14:53:51,464 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:53:51,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-19 14:53:51,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:53:51,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-19 14:53:51,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-11-19 14:53:51,467 INFO L87 Difference]: Start difference. First operand 11 states and 15 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) [2021-11-19 14:53:51,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:51,551 INFO L93 Difference]: Finished difference Result 28 states and 42 transitions. [2021-11-19 14:53:51,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-19 14:53:51,552 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 9 [2021-11-19 14:53:51,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:51,553 INFO L225 Difference]: With dead ends: 28 [2021-11-19 14:53:51,553 INFO L226 Difference]: Without dead ends: 18 [2021-11-19 14:53:51,554 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 3 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2021-11-19 14:53:51,556 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 18 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:51,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 25 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:53:51,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2021-11-19 14:53:51,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 14. [2021-11-19 14:53:51,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.3846153846153846) internal successors, (18), 13 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:51,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 18 transitions. [2021-11-19 14:53:51,563 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 18 transitions. Word has length 9 [2021-11-19 14:53:51,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:51,563 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 18 transitions. [2021-11-19 14:53:51,564 INFO L471 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) [2021-11-19 14:53:51,564 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 18 transitions. [2021-11-19 14:53:51,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-19 14:53:51,565 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:51,565 INFO L514 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:51,607 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:51,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:51,783 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:51,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:51,784 INFO L85 PathProgramCache]: Analyzing trace with hash -1720818596, now seen corresponding path program 2 times [2021-11-19 14:53:51,784 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:53:51,784 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570406694] [2021-11-19 14:53:51,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:51,785 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:53:51,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:51,910 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:51,910 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:53:51,910 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570406694] [2021-11-19 14:53:51,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570406694] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:53:51,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1385666079] [2021-11-19 14:53:51,911 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:53:51,911 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:51,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:53:51,913 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:53:51,931 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 14:53:51,963 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-11-19 14:53:51,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:53:51,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-19 14:53:51,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:52,060 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:52,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:52,207 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:52,207 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1385666079] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:53:52,207 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [867762804] [2021-11-19 14:53:52,210 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 14:53:52,211 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:53:52,211 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:53:52,211 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:53:52,212 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:53:52,222 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:52,226 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-19 14:53:52,231 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:52,235 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-19 14:53:52,240 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:52,244 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:53:52,250 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:52,254 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:53:52,260 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:52,264 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:53:52,267 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,278 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,315 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:52,328 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:53:52,334 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,374 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,378 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,380 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,384 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,407 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:52,421 INFO L180 QuantifierPusher]: treesize reduction 36, result has 50.0 percent of original size [2021-11-19 14:53:52,425 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 14:53:52,433 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:53:52,897 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:53:52,897 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:53:52,897 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2021-11-19 14:53:52,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906845808] [2021-11-19 14:53:52,898 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:53:52,898 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-19 14:53:52,898 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:53:52,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-19 14:53:52,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2021-11-19 14:53:52,900 INFO L87 Difference]: Start difference. First operand 14 states and 18 transitions. Second operand has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:53,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:53:53,320 INFO L93 Difference]: Finished difference Result 37 states and 54 transitions. [2021-11-19 14:53:53,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-19 14:53:53,321 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-19 14:53:53,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:53:53,322 INFO L225 Difference]: With dead ends: 37 [2021-11-19 14:53:53,322 INFO L226 Difference]: Without dead ends: 24 [2021-11-19 14:53:53,323 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 22 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=133, Invalid=287, Unknown=0, NotChecked=0, Total=420 [2021-11-19 14:53:53,324 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-11-19 14:53:53,325 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 49 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-11-19 14:53:53,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-11-19 14:53:53,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 20. [2021-11-19 14:53:53,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.263157894736842) internal successors, (24), 19 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:53,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2021-11-19 14:53:53,332 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 12 [2021-11-19 14:53:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:53:53,333 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2021-11-19 14:53:53,333 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 1.5384615384615385) internal successors, (20), 13 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:53:53,334 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2021-11-19 14:53:53,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-19 14:53:53,334 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:53:53,335 INFO L514 BasicCegarLoop]: trace histogram [10, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:53:53,377 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:53:53,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:53,563 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:53:53,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:53:53,564 INFO L85 PathProgramCache]: Analyzing trace with hash -771659716, now seen corresponding path program 3 times [2021-11-19 14:53:53,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:53:53,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457047541] [2021-11-19 14:53:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:53:53,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:53:53,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:53:53,806 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:53,807 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:53:53,807 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457047541] [2021-11-19 14:53:53,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457047541] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:53:53,810 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [285925247] [2021-11-19 14:53:53,811 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-11-19 14:53:53,811 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:53:53,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:53:53,812 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:53:53,840 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 14:53:53,877 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-11-19 14:53:53,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:53:53,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 23 conjunts are in the unsatisfiable core [2021-11-19 14:53:53,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:53:54,036 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:54,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:53:54,427 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:53:54,427 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [285925247] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:53:54,427 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1262263337] [2021-11-19 14:53:54,430 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 14:53:54,430 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:53:54,430 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:53:54,430 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:53:54,430 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:53:54,438 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:54,441 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-19 14:53:54,445 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:54,448 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-19 14:53:54,451 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:54,454 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:53:54,458 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:54,462 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:53:54,466 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:54,468 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:53:54,471 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,521 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:53:54,528 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:53:54,533 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,562 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,563 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,565 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,566 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:53:54,578 INFO L180 QuantifierPusher]: treesize reduction 36, result has 50.0 percent of original size [2021-11-19 14:53:54,580 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 14:53:54,587 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:53:55,118 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:53:55,118 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:53:55,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2021-11-19 14:53:55,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894724060] [2021-11-19 14:53:55,119 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:53:55,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-19 14:53:55,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:53:55,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-19 14:53:55,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=215, Invalid=597, Unknown=0, NotChecked=0, Total=812 [2021-11-19 14:53:55,121 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand has 25 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:54:02,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:54:02,321 INFO L93 Difference]: Finished difference Result 55 states and 78 transitions. [2021-11-19 14:54:02,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-19 14:54:02,322 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 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 18 [2021-11-19 14:54:02,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:54:02,323 INFO L225 Difference]: With dead ends: 55 [2021-11-19 14:54:02,323 INFO L226 Difference]: Without dead ends: 36 [2021-11-19 14:54:02,324 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 34 SyntacticMatches, 4 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=475, Invalid=1007, Unknown=0, NotChecked=0, Total=1482 [2021-11-19 14:54:02,325 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 30 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:54:02,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 103 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:54:02,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2021-11-19 14:54:02,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 32. [2021-11-19 14:54:02,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 31 states have (on average 1.1612903225806452) internal successors, (36), 31 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:54:02,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2021-11-19 14:54:02,339 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 18 [2021-11-19 14:54:02,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:54:02,340 INFO L470 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2021-11-19 14:54:02,341 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.28) internal successors, (32), 25 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:54:02,342 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2021-11-19 14:54:02,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2021-11-19 14:54:02,344 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:54:02,345 INFO L514 BasicCegarLoop]: trace histogram [22, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:54:02,375 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:54:02,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-11-19 14:54:02,552 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:54:02,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:54:02,552 INFO L85 PathProgramCache]: Analyzing trace with hash 1011234812, now seen corresponding path program 4 times [2021-11-19 14:54:02,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:54:02,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749119395] [2021-11-19 14:54:02,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:54:02,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:54:02,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:03,197 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:03,197 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:54:03,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749119395] [2021-11-19 14:54:03,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749119395] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:54:03,198 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740217423] [2021-11-19 14:54:03,198 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-11-19 14:54:03,198 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:54:03,198 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:54:03,204 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:54:03,223 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-19 14:54:03,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:54:03,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-19 14:54:03,265 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:54:03,485 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:03,485 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:54:04,904 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:54:04,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740217423] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:54:04,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2104479607] [2021-11-19 14:54:04,907 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 14:54:04,907 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:54:04,907 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:54:04,908 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:54:04,908 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:54:04,919 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:04,922 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-19 14:54:04,925 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:04,928 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-19 14:54:04,931 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:04,936 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:54:04,939 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:04,944 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:54:04,946 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:04,949 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 103 [2021-11-19 14:54:04,951 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:04,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:04,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:04,995 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:54:05,012 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 250 [2021-11-19 14:54:05,017 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,052 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,065 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,075 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:54:05,081 INFO L180 QuantifierPusher]: treesize reduction 36, result has 50.0 percent of original size [2021-11-19 14:54:05,083 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 14:54:05,090 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:54:06,041 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:54:06,041 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:54:06,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2021-11-19 14:54:06,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885869467] [2021-11-19 14:54:06,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:54:06,042 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-11-19 14:54:06,042 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:54:06,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-11-19 14:54:06,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=707, Invalid=2049, Unknown=0, NotChecked=0, Total=2756 [2021-11-19 14:54:06,045 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:32,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:56:32,071 INFO L93 Difference]: Finished difference Result 91 states and 126 transitions. [2021-11-19 14:56:32,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-11-19 14:56:32,072 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 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 30 [2021-11-19 14:56:32,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:56:32,073 INFO L225 Difference]: With dead ends: 91 [2021-11-19 14:56:32,073 INFO L226 Difference]: Without dead ends: 60 [2021-11-19 14:56:32,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 58 SyntacticMatches, 4 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 667 ImplicationChecksByTransitivity, 148.0s TimeCoverageRelationStatistics Valid=1802, Invalid=3743, Unknown=5, NotChecked=0, Total=5550 [2021-11-19 14:56:32,078 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 6 mSDsluCounter, 372 mSDsCounter, 0 mSdLazyCounter, 784 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 784 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2021-11-19 14:56:32,078 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 217 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 784 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2021-11-19 14:56:32,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2021-11-19 14:56:32,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 56. [2021-11-19 14:56:32,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:32,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 60 transitions. [2021-11-19 14:56:32,089 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 60 transitions. Word has length 30 [2021-11-19 14:56:32,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:56:32,089 INFO L470 AbstractCegarLoop]: Abstraction has 56 states and 60 transitions. [2021-11-19 14:56:32,089 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.1428571428571428) internal successors, (56), 49 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:56:32,090 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 60 transitions. [2021-11-19 14:56:32,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2021-11-19 14:56:32,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:56:32,092 INFO L514 BasicCegarLoop]: trace histogram [46, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:56:32,134 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-19 14:56:32,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2021-11-19 14:56:32,319 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:56:32,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:56:32,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1171453820, now seen corresponding path program 5 times [2021-11-19 14:56:32,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:56:32,320 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890303431] [2021-11-19 14:56:32,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:56:32,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:56:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:56:33,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:33,837 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:56:33,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890303431] [2021-11-19 14:56:33,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890303431] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:56:33,837 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1404479516] [2021-11-19 14:56:33,837 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-19 14:56:33,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:56:33,837 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:56:33,850 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:56:33,864 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_70eb37d7-d391-47e6-8770-43512d695ae0/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-19 14:56:34,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 24 check-sat command(s) [2021-11-19 14:56:34,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-19 14:56:34,829 WARN L261 TraceCheckSpWp]: Trace formula consists of 193 conjuncts, 98 conjunts are in the unsatisfiable core [2021-11-19 14:56:34,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:56:35,270 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:35,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:56:42,593 INFO L134 CoverageAnalysis]: Checked inductivity of 1081 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:56:42,594 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1404479516] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-19 14:56:42,594 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2000179944] [2021-11-19 14:56:42,596 INFO L159 IcfgInterpreter]: Started Sifa with 9 locations of interest [2021-11-19 14:56:42,597 INFO L166 IcfgInterpreter]: Building call graph [2021-11-19 14:56:42,597 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2021-11-19 14:56:42,597 INFO L176 IcfgInterpreter]: Starting interpretation [2021-11-19 14:56:42,597 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2021-11-19 14:56:42,604 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:56:42,606 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 79 [2021-11-19 14:56:42,609 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:56:42,610 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 84 [2021-11-19 14:56:42,613 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:56:42,615 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 89 [2021-11-19 14:56:42,618 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:56:42,621 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:56:42,624 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:56:42,625 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-11-19 14:56:42,628 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,659 INFO L180 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-11-19 14:56:42,664 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 243 [2021-11-19 14:56:42,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,717 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,718 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,719 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout 10000 ms and remaining time -1 ms [2021-11-19 14:56:42,731 INFO L180 QuantifierPusher]: treesize reduction 36, result has 50.0 percent of original size [2021-11-19 14:56:42,733 INFO L185 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-11-19 14:56:42,740 INFO L180 IcfgInterpreter]: Interpretation finished [2021-11-19 14:56:43,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-19 14:56:43,808 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-11-19 14:56:43,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 50] total 98 [2021-11-19 14:56:43,809 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821189175] [2021-11-19 14:56:43,809 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-11-19 14:56:43,810 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2021-11-19 14:56:43,810 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:56:43,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2021-11-19 14:56:43,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2557, Invalid=7745, Unknown=0, NotChecked=0, Total=10302 [2021-11-19 14:56:43,815 INFO L87 Difference]: Start difference. First operand 56 states and 60 transitions. Second operand has 98 states, 98 states have (on average 1.0714285714285714) internal successors, (105), 98 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) [2021-11-19 14:56:46,950 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse2 (= (mod .cse6 4) 0)) (.cse3 (= (mod .cse4 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 45) 4294967296) 268435455)) (or .cse1 (< (mod (+ 44 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 43) 4294967296) 268435455) .cse0) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse3 (< (mod (+ 42 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 40 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 41 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse3 (< (mod (+ 46 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455))))) is different from false [2021-11-19 14:56:48,965 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 45) 4294967296) 268435455)) (or .cse1 (< (mod (+ 44 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 43) 4294967296) 268435455) .cse0) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse3 (< (mod (+ 42 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 40 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 41 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false [2021-11-19 14:59:40,045 WARN L227 SmtUtils]: Spent 1.60m on a formula simplification. DAG size of input: 236 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:02:34,604 WARN L227 SmtUtils]: Spent 1.68m on a formula simplification. DAG size of input: 231 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:02:36,658 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse3 (< (mod (+ 42 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 40 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 41 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false [2021-11-19 15:02:38,750 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 40 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 41 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false [2021-11-19 15:05:48,960 WARN L227 SmtUtils]: Spent 1.67m on a formula simplification. DAG size of input: 216 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:05:51,089 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 39) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false [2021-11-19 15:05:53,150 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 38) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false [2021-11-19 15:05:55,202 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 36) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 37) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false [2021-11-19 15:07:46,831 WARN L227 SmtUtils]: Spent 37.93s on a formula simplification. DAG size of input: 196 DAG size of output: 10 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2021-11-19 15:07:48,987 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse6 (+ |c_ULTIMATE.start_main_~v~0#1| 1)) (.cse4 (+ 2 |c_ULTIMATE.start_main_~v~0#1|)) (.cse5 (+ 3 |c_ULTIMATE.start_main_~v~0#1|))) (let ((.cse1 (= (mod |c_ULTIMATE.start_main_~v~0#1| 4) 0)) (.cse0 (= (mod .cse5 4) 0)) (.cse3 (= (mod .cse4 4) 0)) (.cse2 (= (mod .cse6 4) 0))) (and (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 11) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 20) 4294967296) 268435455)) (or (< (mod (+ 21 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2) (or .cse2 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 13) 4294967296) 268435455)) (or .cse0 (< (mod (+ 31 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 25) 4294967296) 268435455) .cse2) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 27) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 8) 4294967296) 268435455)) (or .cse3 (< (mod (+ 22 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 6 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ 16 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 28) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 10) 4294967296) 268435455)) (or .cse3 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 26) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 17) 4294967296) 268435455) .cse2) (or (< (mod .cse4 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 15) 4294967296) 268435455)) (or .cse2 (< (mod (+ 9 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 4) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 33) 4294967296) 268435455) .cse2) (or (< (mod .cse5 4294967296) 268435455) .cse0) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 18) 4294967296) 268435455) .cse3) (or .cse1 (< (mod (+ 32 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 34) 4294967296) 268435455) .cse3) (or .cse0 (< (mod (+ 23 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod .cse6 4294967296) 268435455) .cse2) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 24) 4294967296) 268435455)) (or .cse1 (< (mod (+ |c_ULTIMATE.start_main_~v~0#1| 12) 4294967296) 268435455)) (or .cse0 (< (mod (+ 7 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 30 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse3) (or .cse2 (< (mod (+ 29 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse0 (< (mod (+ 19 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse1 (< (mod |c_ULTIMATE.start_main_~v~0#1| 4294967296) 268435455)) (or .cse0 (< (mod (+ 35 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or .cse3 (< (mod (+ 14 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455)) (or (< (mod (+ 5 |c_ULTIMATE.start_main_~v~0#1|) 4294967296) 268435455) .cse2)))) is different from false