./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem01_label56.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_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/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_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem01_label56.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/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_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/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 7b93c3f7fecac47558d01f2a0c93696ea48f2ebbd5c30f43df88a8759c531651 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-19 14:30:44,692 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-19 14:30:44,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-19 14:30:44,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-19 14:30:44,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-19 14:30:44,765 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-19 14:30:44,767 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-19 14:30:44,772 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-19 14:30:44,775 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-19 14:30:44,781 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-19 14:30:44,783 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-19 14:30:44,785 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-19 14:30:44,786 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-19 14:30:44,789 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-19 14:30:44,791 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-19 14:30:44,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-19 14:30:44,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-19 14:30:44,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-19 14:30:44,808 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-19 14:30:44,811 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-19 14:30:44,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-19 14:30:44,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-19 14:30:44,824 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-19 14:30:44,827 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-19 14:30:44,835 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-19 14:30:44,839 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-19 14:30:44,840 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-19 14:30:44,841 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-19 14:30:44,843 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-19 14:30:44,844 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-19 14:30:44,845 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-19 14:30:44,847 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-19 14:30:44,849 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-19 14:30:44,850 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-19 14:30:44,852 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-19 14:30:44,853 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-19 14:30:44,853 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-19 14:30:44,854 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-19 14:30:44,854 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-19 14:30:44,855 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-19 14:30:44,856 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-19 14:30:44,857 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-19 14:30:44,912 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-19 14:30:44,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-19 14:30:44,914 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-19 14:30:44,914 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-19 14:30:44,915 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-19 14:30:44,915 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-19 14:30:44,915 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-19 14:30:44,915 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-19 14:30:44,922 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-19 14:30:44,923 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-19 14:30:44,924 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-19 14:30:44,924 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-19 14:30:44,924 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-19 14:30:44,925 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-19 14:30:44,925 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-19 14:30:44,925 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-19 14:30:44,926 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-19 14:30:44,926 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-19 14:30:44,927 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-19 14:30:44,927 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-19 14:30:44,927 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-19 14:30:44,927 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-19 14:30:44,928 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-19 14:30:44,928 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-19 14:30:44,928 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-19 14:30:44,928 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-19 14:30:44,929 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-19 14:30:44,929 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-19 14:30:44,929 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-19 14:30:44,931 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-19 14:30:44,932 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-19 14:30:44,932 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:44,932 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-19 14:30:44,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-19 14:30:44,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-19 14:30:44,933 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-19 14:30:44,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-19 14:30:44,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-19 14:30:44,934 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-19 14:30:44,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-19 14:30:44,934 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_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7b93c3f7fecac47558d01f2a0c93696ea48f2ebbd5c30f43df88a8759c531651 [2021-11-19 14:30:45,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-19 14:30:45,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-19 14:30:45,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-19 14:30:45,273 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-19 14:30:45,274 INFO L275 PluginConnector]: CDTParser initialized [2021-11-19 14:30:45,275 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/../../sv-benchmarks/c/eca-rers2012/Problem01_label56.c [2021-11-19 14:30:45,372 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/data/2113c88ca/05157f17592b42e8b93cda6faa032a00/FLAG433a9cdbc [2021-11-19 14:30:46,013 INFO L306 CDTParser]: Found 1 translation units. [2021-11-19 14:30:46,014 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/sv-benchmarks/c/eca-rers2012/Problem01_label56.c [2021-11-19 14:30:46,048 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/data/2113c88ca/05157f17592b42e8b93cda6faa032a00/FLAG433a9cdbc [2021-11-19 14:30:46,207 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/data/2113c88ca/05157f17592b42e8b93cda6faa032a00 [2021-11-19 14:30:46,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-19 14:30:46,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-19 14:30:46,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:46,213 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-19 14:30:46,233 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-19 14:30:46,234 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:46,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f1825a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46, skipping insertion in model container [2021-11-19 14:30:46,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:46,244 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-19 14:30:46,295 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-19 14:30:46,674 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_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/sv-benchmarks/c/eca-rers2012/Problem01_label56.c[15002,15015] [2021-11-19 14:30:46,723 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:46,751 INFO L203 MainTranslator]: Completed pre-run [2021-11-19 14:30:46,869 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_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/sv-benchmarks/c/eca-rers2012/Problem01_label56.c[15002,15015] [2021-11-19 14:30:46,893 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-19 14:30:46,911 INFO L208 MainTranslator]: Completed translation [2021-11-19 14:30:46,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46 WrapperNode [2021-11-19 14:30:46,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-19 14:30:46,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:46,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-19 14:30:46,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-19 14:30:46,923 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:46,952 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,030 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 657 [2021-11-19 14:30:47,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-19 14:30:47,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-19 14:30:47,033 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-19 14:30:47,033 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-19 14:30:47,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,058 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,122 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,175 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-19 14:30:47,176 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-19 14:30:47,177 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-19 14:30:47,177 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-19 14:30:47,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (1/1) ... [2021-11-19 14:30:47,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-19 14:30:47,208 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:47,225 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-19 14:30:47,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-19 14:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-19 14:30:47,281 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-19 14:30:47,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-19 14:30:47,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-19 14:30:47,365 INFO L236 CfgBuilder]: Building ICFG [2021-11-19 14:30:47,367 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-19 14:30:48,668 INFO L277 CfgBuilder]: Performing block encoding [2021-11-19 14:30:48,924 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-19 14:30:48,924 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-11-19 14:30:48,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:48 BoogieIcfgContainer [2021-11-19 14:30:48,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-19 14:30:48,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-19 14:30:48,931 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-19 14:30:48,935 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-19 14:30:48,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:30:46" (1/3) ... [2021-11-19 14:30:48,936 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6808967a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:48, skipping insertion in model container [2021-11-19 14:30:48,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:30:46" (2/3) ... [2021-11-19 14:30:48,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6808967a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:30:48, skipping insertion in model container [2021-11-19 14:30:48,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:48" (3/3) ... [2021-11-19 14:30:48,939 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label56.c [2021-11-19 14:30:48,950 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-19 14:30:48,951 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-11-19 14:30:49,031 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-19 14:30:49,043 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 14:30:49,043 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-11-19 14:30:49,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 74 states have (on average 1.945945945945946) internal successors, (144), 75 states have internal predecessors, (144), 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 14:30:49,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2021-11-19 14:30:49,090 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:49,091 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:49,092 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:49,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:49,100 INFO L85 PathProgramCache]: Analyzing trace with hash -104693147, now seen corresponding path program 1 times [2021-11-19 14:30:49,111 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:49,111 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72435758] [2021-11-19 14:30:49,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:49,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:49,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:49,633 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 14:30:49,638 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:49,639 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72435758] [2021-11-19 14:30:49,640 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72435758] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:49,640 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:49,640 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:30:49,643 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846024505] [2021-11-19 14:30:49,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:49,652 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:49,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:49,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:49,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:49,706 INFO L87 Difference]: Start difference. First operand has 76 states, 74 states have (on average 1.945945945945946) internal successors, (144), 75 states have internal predecessors, (144), 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 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 14:30:50,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:50,335 INFO L93 Difference]: Finished difference Result 224 states and 428 transitions. [2021-11-19 14:30:50,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:50,340 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 71 [2021-11-19 14:30:50,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:50,366 INFO L225 Difference]: With dead ends: 224 [2021-11-19 14:30:50,366 INFO L226 Difference]: Without dead ends: 145 [2021-11-19 14:30:50,371 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:30:50,377 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 21 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 72 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 72 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:50,378 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 29 Invalid, 285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [72 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-11-19 14:30:50,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145 states. [2021-11-19 14:30:50,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145 to 145. [2021-11-19 14:30:50,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 1.7986111111111112) internal successors, (259), 144 states have internal predecessors, (259), 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 14:30:50,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 259 transitions. [2021-11-19 14:30:50,473 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 259 transitions. Word has length 71 [2021-11-19 14:30:50,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:50,474 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 259 transitions. [2021-11-19 14:30:50,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 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 14:30:50,475 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 259 transitions. [2021-11-19 14:30:50,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2021-11-19 14:30:50,479 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:50,480 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:50,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-19 14:30:50,481 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:50,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:50,485 INFO L85 PathProgramCache]: Analyzing trace with hash -1478062917, now seen corresponding path program 1 times [2021-11-19 14:30:50,485 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:50,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896272851] [2021-11-19 14:30:50,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:50,486 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:50,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:50,592 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:50,593 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896272851] [2021-11-19 14:30:50,593 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896272851] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:50,593 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:50,593 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:30:50,594 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020047912] [2021-11-19 14:30:50,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:50,596 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:50,596 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:50,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:50,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:50,597 INFO L87 Difference]: Start difference. First operand 145 states and 259 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 14:30:51,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:51,004 INFO L93 Difference]: Finished difference Result 431 states and 774 transitions. [2021-11-19 14:30:51,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:51,004 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 76 [2021-11-19 14:30:51,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:51,007 INFO L225 Difference]: With dead ends: 431 [2021-11-19 14:30:51,007 INFO L226 Difference]: Without dead ends: 287 [2021-11-19 14:30:51,008 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:30:51,012 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 112 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 275 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:51,013 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [112 Valid, 25 Invalid, 275 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:30:51,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2021-11-19 14:30:51,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 287. [2021-11-19 14:30:51,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 286 states have (on average 1.6783216783216783) internal successors, (480), 286 states have internal predecessors, (480), 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 14:30:51,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 480 transitions. [2021-11-19 14:30:51,059 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 480 transitions. Word has length 76 [2021-11-19 14:30:51,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:51,062 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 480 transitions. [2021-11-19 14:30:51,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 2 states have internal predecessors, (76), 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 14:30:51,064 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 480 transitions. [2021-11-19 14:30:51,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2021-11-19 14:30:51,074 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:51,075 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:51,076 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-19 14:30:51,076 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:51,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:51,077 INFO L85 PathProgramCache]: Analyzing trace with hash -751468367, now seen corresponding path program 1 times [2021-11-19 14:30:51,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:51,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389393007] [2021-11-19 14:30:51,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:51,080 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:51,193 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:51,193 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389393007] [2021-11-19 14:30:51,194 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389393007] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:51,194 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:51,194 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:30:51,194 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354799442] [2021-11-19 14:30:51,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:51,195 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:51,195 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:51,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:51,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:51,196 INFO L87 Difference]: Start difference. First operand 287 states and 480 transitions. Second operand has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 14:30:51,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:51,505 INFO L93 Difference]: Finished difference Result 786 states and 1318 transitions. [2021-11-19 14:30:51,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:51,506 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 80 [2021-11-19 14:30:51,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:51,509 INFO L225 Difference]: With dead ends: 786 [2021-11-19 14:30:51,510 INFO L226 Difference]: Without dead ends: 500 [2021-11-19 14:30:51,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:30:51,513 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 91 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 91 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:51,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [82 Valid, 13 Invalid, 302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [91 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:30:51,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-11-19 14:30:51,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-11-19 14:30:51,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.6332665330661322) internal successors, (815), 499 states have internal predecessors, (815), 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 14:30:51,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 815 transitions. [2021-11-19 14:30:51,546 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 815 transitions. Word has length 80 [2021-11-19 14:30:51,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:51,547 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 815 transitions. [2021-11-19 14:30:51,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.666666666666668) internal successors, (80), 2 states have internal predecessors, (80), 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 14:30:51,547 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 815 transitions. [2021-11-19 14:30:51,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-19 14:30:51,550 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:51,551 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:51,551 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-19 14:30:51,551 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:51,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:51,552 INFO L85 PathProgramCache]: Analyzing trace with hash -359627609, now seen corresponding path program 1 times [2021-11-19 14:30:51,552 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:51,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970202963] [2021-11-19 14:30:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:51,553 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:51,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:51,612 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:51,612 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:51,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970202963] [2021-11-19 14:30:51,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970202963] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:51,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:51,613 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:30:51,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080863095] [2021-11-19 14:30:51,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:51,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:51,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:51,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:51,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:51,616 INFO L87 Difference]: Start difference. First operand 500 states and 815 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:30:51,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:51,894 INFO L93 Difference]: Finished difference Result 999 states and 1629 transitions. [2021-11-19 14:30:51,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:51,898 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-11-19 14:30:51,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:51,902 INFO L225 Difference]: With dead ends: 999 [2021-11-19 14:30:51,902 INFO L226 Difference]: Without dead ends: 500 [2021-11-19 14:30:51,903 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:30:51,904 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 69 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 57 SdHoareTripleChecker+Invalid, 237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:51,904 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 57 Invalid, 237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:30:51,905 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2021-11-19 14:30:51,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 500. [2021-11-19 14:30:51,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 500 states, 499 states have (on average 1.6092184368737474) internal successors, (803), 499 states have internal predecessors, (803), 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 14:30:51,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 500 states to 500 states and 803 transitions. [2021-11-19 14:30:51,928 INFO L78 Accepts]: Start accepts. Automaton has 500 states and 803 transitions. Word has length 84 [2021-11-19 14:30:51,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:51,928 INFO L470 AbstractCegarLoop]: Abstraction has 500 states and 803 transitions. [2021-11-19 14:30:51,929 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:30:51,929 INFO L276 IsEmpty]: Start isEmpty. Operand 500 states and 803 transitions. [2021-11-19 14:30:51,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-11-19 14:30:51,934 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:51,934 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:51,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-19 14:30:51,934 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:51,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1882197154, now seen corresponding path program 1 times [2021-11-19 14:30:51,938 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:51,938 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351775339] [2021-11-19 14:30:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:51,939 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:51,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:52,032 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:52,032 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:52,032 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351775339] [2021-11-19 14:30:52,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351775339] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:52,033 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:52,033 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:30:52,033 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786918777] [2021-11-19 14:30:52,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:52,034 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:52,034 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:52,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:52,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:52,035 INFO L87 Difference]: Start difference. First operand 500 states and 803 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 14:30:52,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:52,351 INFO L93 Difference]: Finished difference Result 1212 states and 1902 transitions. [2021-11-19 14:30:52,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:52,352 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 86 [2021-11-19 14:30:52,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:52,357 INFO L225 Difference]: With dead ends: 1212 [2021-11-19 14:30:52,357 INFO L226 Difference]: Without dead ends: 713 [2021-11-19 14:30:52,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:30:52,367 INFO L933 BasicCegarLoop]: 54 mSDtfsCounter, 62 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:52,367 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [62 Valid, 58 Invalid, 256 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:30:52,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 713 states. [2021-11-19 14:30:52,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 713 to 642. [2021-11-19 14:30:52,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 641 states have (on average 1.5210608424336973) internal successors, (975), 641 states have internal predecessors, (975), 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 14:30:52,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 975 transitions. [2021-11-19 14:30:52,404 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 975 transitions. Word has length 86 [2021-11-19 14:30:52,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:52,405 INFO L470 AbstractCegarLoop]: Abstraction has 642 states and 975 transitions. [2021-11-19 14:30:52,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 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 14:30:52,407 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 975 transitions. [2021-11-19 14:30:52,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-19 14:30:52,414 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:52,418 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:52,418 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-19 14:30:52,419 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:52,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:52,419 INFO L85 PathProgramCache]: Analyzing trace with hash -1075120150, now seen corresponding path program 1 times [2021-11-19 14:30:52,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:52,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698808105] [2021-11-19 14:30:52,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:52,420 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:52,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:52,518 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:52,518 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:52,518 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698808105] [2021-11-19 14:30:52,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698808105] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:52,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:52,520 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:30:52,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253990104] [2021-11-19 14:30:52,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:52,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:30:52,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:52,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:30:52,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:30:52,523 INFO L87 Difference]: Start difference. First operand 642 states and 975 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 14:30:52,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:52,964 INFO L93 Difference]: Finished difference Result 1496 states and 2210 transitions. [2021-11-19 14:30:52,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:30:52,964 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 90 [2021-11-19 14:30:52,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:52,970 INFO L225 Difference]: With dead ends: 1496 [2021-11-19 14:30:52,970 INFO L226 Difference]: Without dead ends: 855 [2021-11-19 14:30:52,971 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-19 14:30:52,972 INFO L933 BasicCegarLoop]: 47 mSDtfsCounter, 145 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 367 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 431 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 367 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:52,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [145 Valid, 55 Invalid, 431 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [64 Valid, 367 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:30:52,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2021-11-19 14:30:52,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 784. [2021-11-19 14:30:52,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 784 states, 783 states have (on average 1.4572158365261814) internal successors, (1141), 783 states have internal predecessors, (1141), 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 14:30:52,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1141 transitions. [2021-11-19 14:30:53,000 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1141 transitions. Word has length 90 [2021-11-19 14:30:53,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:53,000 INFO L470 AbstractCegarLoop]: Abstraction has 784 states and 1141 transitions. [2021-11-19 14:30:53,001 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 3 states have internal predecessors, (90), 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 14:30:53,001 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1141 transitions. [2021-11-19 14:30:53,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-19 14:30:53,003 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:53,003 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:53,004 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-19 14:30:53,004 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:53,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:53,005 INFO L85 PathProgramCache]: Analyzing trace with hash -303043477, now seen corresponding path program 1 times [2021-11-19 14:30:53,005 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:53,005 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208517379] [2021-11-19 14:30:53,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:53,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:53,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:53,090 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2021-11-19 14:30:53,091 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:53,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208517379] [2021-11-19 14:30:53,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208517379] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:53,091 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:53,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-19 14:30:53,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004770933] [2021-11-19 14:30:53,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:53,093 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:53,093 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:53,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:53,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:53,094 INFO L87 Difference]: Start difference. First operand 784 states and 1141 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:30:53,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:53,394 INFO L93 Difference]: Finished difference Result 928 states and 1333 transitions. [2021-11-19 14:30:53,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:53,395 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 108 [2021-11-19 14:30:53,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:53,402 INFO L225 Difference]: With dead ends: 928 [2021-11-19 14:30:53,402 INFO L226 Difference]: Without dead ends: 926 [2021-11-19 14:30:53,403 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 14:30:53,404 INFO L933 BasicCegarLoop]: 23 mSDtfsCounter, 22 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 224 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 224 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:53,404 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 27 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 224 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:30:53,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 926 states. [2021-11-19 14:30:53,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 926 to 855. [2021-11-19 14:30:53,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 854 states have (on average 1.4672131147540983) internal successors, (1253), 854 states have internal predecessors, (1253), 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 14:30:53,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1253 transitions. [2021-11-19 14:30:53,435 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1253 transitions. Word has length 108 [2021-11-19 14:30:53,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:53,436 INFO L470 AbstractCegarLoop]: Abstraction has 855 states and 1253 transitions. [2021-11-19 14:30:53,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 2 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-19 14:30:53,436 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1253 transitions. [2021-11-19 14:30:53,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-11-19 14:30:53,439 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:53,440 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:53,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-19 14:30:53,440 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:53,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:53,441 INFO L85 PathProgramCache]: Analyzing trace with hash 137499745, now seen corresponding path program 1 times [2021-11-19 14:30:53,441 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:53,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471223649] [2021-11-19 14:30:53,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:53,442 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:53,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:53,520 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:53,520 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:53,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471223649] [2021-11-19 14:30:53,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471223649] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:53,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301259170] [2021-11-19 14:30:53,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:53,522 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:53,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:53,534 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:30:53,549 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-19 14:30:53,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:53,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 263 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-19 14:30:53,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:54,063 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:54,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:54,514 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 49 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-19 14:30:54,515 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301259170] provided 1 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:54,515 INFO L186 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2021-11-19 14:30:54,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3, 3] total 6 [2021-11-19 14:30:54,517 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593970050] [2021-11-19 14:30:54,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:54,521 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:30:54,521 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:54,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:30:54,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:54,522 INFO L87 Difference]: Start difference. First operand 855 states and 1253 transitions. Second operand has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 14:30:55,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:55,007 INFO L93 Difference]: Finished difference Result 2064 states and 3042 transitions. [2021-11-19 14:30:55,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:30:55,008 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 121 [2021-11-19 14:30:55,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:55,015 INFO L225 Difference]: With dead ends: 2064 [2021-11-19 14:30:55,016 INFO L226 Difference]: Without dead ends: 1210 [2021-11-19 14:30:55,017 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 238 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:55,018 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 136 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 306 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:55,020 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 44 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 306 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:30:55,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1210 states. [2021-11-19 14:30:55,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1210 to 926. [2021-11-19 14:30:55,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 926 states, 925 states have (on average 1.3837837837837839) internal successors, (1280), 925 states have internal predecessors, (1280), 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 14:30:55,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 926 states to 926 states and 1280 transitions. [2021-11-19 14:30:55,050 INFO L78 Accepts]: Start accepts. Automaton has 926 states and 1280 transitions. Word has length 121 [2021-11-19 14:30:55,051 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:55,051 INFO L470 AbstractCegarLoop]: Abstraction has 926 states and 1280 transitions. [2021-11-19 14:30:55,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.25) internal successors, (121), 3 states have internal predecessors, (121), 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 14:30:55,052 INFO L276 IsEmpty]: Start isEmpty. Operand 926 states and 1280 transitions. [2021-11-19 14:30:55,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2021-11-19 14:30:55,055 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:55,055 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:55,095 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:55,268 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:55,269 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:55,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:55,269 INFO L85 PathProgramCache]: Analyzing trace with hash 326138918, now seen corresponding path program 1 times [2021-11-19 14:30:55,269 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:55,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110225066] [2021-11-19 14:30:55,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:55,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:55,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:55,368 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 124 proven. 6 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-11-19 14:30:55,368 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:55,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110225066] [2021-11-19 14:30:55,368 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110225066] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:55,368 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1509369185] [2021-11-19 14:30:55,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:55,369 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:55,369 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:55,379 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:30:55,382 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-19 14:30:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:55,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 378 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-19 14:30:55,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:55,945 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:30:55,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:56,809 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-11-19 14:30:56,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1509369185] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:56,810 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:30:56,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [4] total 7 [2021-11-19 14:30:56,810 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960749853] [2021-11-19 14:30:56,811 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:56,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-19 14:30:56,811 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:56,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-19 14:30:56,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:56,813 INFO L87 Difference]: Start difference. First operand 926 states and 1280 transitions. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 14:30:57,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:57,262 INFO L93 Difference]: Finished difference Result 2348 states and 3292 transitions. [2021-11-19 14:30:57,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-19 14:30:57,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 171 [2021-11-19 14:30:57,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:57,271 INFO L225 Difference]: With dead ends: 2348 [2021-11-19 14:30:57,271 INFO L226 Difference]: Without dead ends: 1423 [2021-11-19 14:30:57,273 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 339 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:57,286 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 96 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 319 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:57,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 40 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 319 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-11-19 14:30:57,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2021-11-19 14:30:57,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 1068. [2021-11-19 14:30:57,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 1.4123711340206186) internal successors, (1507), 1067 states have internal predecessors, (1507), 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 14:30:57,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1507 transitions. [2021-11-19 14:30:57,323 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1507 transitions. Word has length 171 [2021-11-19 14:30:57,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:57,323 INFO L470 AbstractCegarLoop]: Abstraction has 1068 states and 1507 transitions. [2021-11-19 14:30:57,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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 14:30:57,324 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1507 transitions. [2021-11-19 14:30:57,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2021-11-19 14:30:57,328 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:57,328 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:57,367 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-19 14:30:57,550 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:57,550 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:57,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:57,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1542355751, now seen corresponding path program 1 times [2021-11-19 14:30:57,551 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:57,551 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562457186] [2021-11-19 14:30:57,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:57,551 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:57,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:57,663 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2021-11-19 14:30:57,663 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:57,664 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562457186] [2021-11-19 14:30:57,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562457186] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:57,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:57,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:30:57,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117021712] [2021-11-19 14:30:57,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:57,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:57,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:57,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:57,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:57,666 INFO L87 Difference]: Start difference. First operand 1068 states and 1507 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 14:30:57,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:57,958 INFO L93 Difference]: Finished difference Result 2348 states and 3287 transitions. [2021-11-19 14:30:57,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:57,959 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 175 [2021-11-19 14:30:57,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:57,967 INFO L225 Difference]: With dead ends: 2348 [2021-11-19 14:30:57,967 INFO L226 Difference]: Without dead ends: 1068 [2021-11-19 14:30:57,971 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 14:30:57,972 INFO L933 BasicCegarLoop]: 122 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:57,973 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 126 Invalid, 262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-11-19 14:30:57,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-11-19 14:30:57,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 997. [2021-11-19 14:30:58,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 997 states, 996 states have (on average 1.216867469879518) internal successors, (1212), 996 states have internal predecessors, (1212), 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 14:30:58,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1212 transitions. [2021-11-19 14:30:58,003 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1212 transitions. Word has length 175 [2021-11-19 14:30:58,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:58,004 INFO L470 AbstractCegarLoop]: Abstraction has 997 states and 1212 transitions. [2021-11-19 14:30:58,004 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 states have internal predecessors, (128), 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 14:30:58,005 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1212 transitions. [2021-11-19 14:30:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-19 14:30:58,009 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:58,009 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:58,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-11-19 14:30:58,010 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:58,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:58,010 INFO L85 PathProgramCache]: Analyzing trace with hash -486647804, now seen corresponding path program 1 times [2021-11-19 14:30:58,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:58,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377936606] [2021-11-19 14:30:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:58,011 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:58,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:58,098 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 232 proven. 0 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-19 14:30:58,098 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:58,099 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377936606] [2021-11-19 14:30:58,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377936606] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:58,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-19 14:30:58,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-19 14:30:58,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385191570] [2021-11-19 14:30:58,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:58,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:58,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:58,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:58,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-19 14:30:58,101 INFO L87 Difference]: Start difference. First operand 997 states and 1212 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 14:30:58,328 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:58,328 INFO L93 Difference]: Finished difference Result 2064 states and 2502 transitions. [2021-11-19 14:30:58,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:58,329 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 214 [2021-11-19 14:30:58,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:58,335 INFO L225 Difference]: With dead ends: 2064 [2021-11-19 14:30:58,335 INFO L226 Difference]: Without dead ends: 1068 [2021-11-19 14:30:58,337 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 14:30:58,337 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 26 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 203 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 231 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 203 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:58,338 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [26 Valid, 111 Invalid, 231 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 203 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:30:58,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1068 states. [2021-11-19 14:30:58,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1068 to 1068. [2021-11-19 14:30:58,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1068 states, 1067 states have (on average 1.1883786316776008) internal successors, (1268), 1067 states have internal predecessors, (1268), 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 14:30:58,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1068 states to 1068 states and 1268 transitions. [2021-11-19 14:30:58,378 INFO L78 Accepts]: Start accepts. Automaton has 1068 states and 1268 transitions. Word has length 214 [2021-11-19 14:30:58,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:58,379 INFO L470 AbstractCegarLoop]: Abstraction has 1068 states and 1268 transitions. [2021-11-19 14:30:58,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 3 states have internal predecessors, (158), 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 14:30:58,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1068 states and 1268 transitions. [2021-11-19 14:30:58,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2021-11-19 14:30:58,384 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:58,384 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:58,384 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-11-19 14:30:58,385 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:30:58,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:30:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1528654949, now seen corresponding path program 1 times [2021-11-19 14:30:58,386 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:30:58,386 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693554823] [2021-11-19 14:30:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:58,386 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:30:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 237 proven. 38 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-11-19 14:30:58,606 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-19 14:30:58,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693554823] [2021-11-19 14:30:58,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693554823] provided 0 perfect and 1 imperfect interpolant sequences [2021-11-19 14:30:58,607 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1587881934] [2021-11-19 14:30:58,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:30:58,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-19 14:30:58,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 [2021-11-19 14:30:58,610 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-19 14:30:58,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-19 14:30:58,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-19 14:30:58,748 INFO L263 TraceCheckSpWp]: Trace formula consists of 492 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-19 14:30:58,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-19 14:30:59,128 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-19 14:30:59,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-19 14:30:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 229 proven. 0 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2021-11-19 14:30:59,558 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1587881934] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-19 14:30:59,559 INFO L186 FreeRefinementEngine]: Found 2 perfect and 1 imperfect interpolant sequences. [2021-11-19 14:30:59,559 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [5] total 7 [2021-11-19 14:30:59,559 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608722332] [2021-11-19 14:30:59,559 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-19 14:30:59,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-19 14:30:59,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-19 14:30:59,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-19 14:30:59,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:59,561 INFO L87 Difference]: Start difference. First operand 1068 states and 1268 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 14:30:59,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-19 14:30:59,821 INFO L93 Difference]: Finished difference Result 2419 states and 2871 transitions. [2021-11-19 14:30:59,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-19 14:30:59,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 227 [2021-11-19 14:30:59,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-19 14:30:59,829 INFO L225 Difference]: With dead ends: 2419 [2021-11-19 14:30:59,829 INFO L226 Difference]: Without dead ends: 1352 [2021-11-19 14:30:59,830 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 457 GetRequests, 451 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-19 14:30:59,831 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 34 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 235 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-11-19 14:30:59,832 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [34 Valid, 20 Invalid, 235 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-11-19 14:30:59,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2021-11-19 14:30:59,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1139. [2021-11-19 14:30:59,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1139 states, 1138 states have (on average 1.1898066783831283) internal successors, (1354), 1138 states have internal predecessors, (1354), 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 14:30:59,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1139 states to 1139 states and 1354 transitions. [2021-11-19 14:30:59,866 INFO L78 Accepts]: Start accepts. Automaton has 1139 states and 1354 transitions. Word has length 227 [2021-11-19 14:30:59,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-19 14:30:59,866 INFO L470 AbstractCegarLoop]: Abstraction has 1139 states and 1354 transitions. [2021-11-19 14:30:59,867 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 14:30:59,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1139 states and 1354 transitions. [2021-11-19 14:30:59,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2021-11-19 14:30:59,872 INFO L506 BasicCegarLoop]: Found error trace [2021-11-19 14:30:59,872 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:30:59,908 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-19 14:31:00,094 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-11-19 14:31:00,094 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-11-19 14:31:00,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-19 14:31:00,095 INFO L85 PathProgramCache]: Analyzing trace with hash -1383036787, now seen corresponding path program 1 times [2021-11-19 14:31:00,095 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-19 14:31:00,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097368395] [2021-11-19 14:31:00,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-19 14:31:00,095 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-19 14:31:00,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:31:00,153 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-19 14:31:00,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-19 14:31:00,337 INFO L133 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-11-19 14:31:00,337 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-11-19 14:31:00,338 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-11-19 14:31:00,340 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-11-19 14:31:00,344 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-19 14:31:00,349 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-19 14:31:00,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.11 02:31:00 BoogieIcfgContainer [2021-11-19 14:31:00,573 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-19 14:31:00,573 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-19 14:31:00,573 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-19 14:31:00,574 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-19 14:31:00,574 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:30:48" (3/4) ... [2021-11-19 14:31:00,576 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-19 14:31:00,754 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/witness.graphml [2021-11-19 14:31:00,754 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-19 14:31:00,755 INFO L158 Benchmark]: Toolchain (without parser) took 14543.94ms. Allocated memory was 132.1MB in the beginning and 287.3MB in the end (delta: 155.2MB). Free memory was 104.9MB in the beginning and 190.2MB in the end (delta: -85.3MB). Peak memory consumption was 70.3MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,755 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 132.1MB. Free memory was 85.3MB in the beginning and 85.2MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-19 14:31:00,756 INFO L158 Benchmark]: CACSL2BoogieTranslator took 699.74ms. Allocated memory is still 132.1MB. Free memory was 104.5MB in the beginning and 89.6MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 118.18ms. Allocated memory is still 132.1MB. Free memory was 89.6MB in the beginning and 83.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,757 INFO L158 Benchmark]: Boogie Preprocessor took 143.04ms. Allocated memory is still 132.1MB. Free memory was 83.3MB in the beginning and 79.0MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,757 INFO L158 Benchmark]: RCFGBuilder took 1752.29ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 79.0MB in the beginning and 88.9MB in the end (delta: -9.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,758 INFO L158 Benchmark]: TraceAbstraction took 11642.26ms. Allocated memory was 167.8MB in the beginning and 287.3MB in the end (delta: 119.5MB). Free memory was 88.5MB in the beginning and 221.7MB in the end (delta: -133.2MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,759 INFO L158 Benchmark]: Witness Printer took 181.11ms. Allocated memory is still 287.3MB. Free memory was 221.7MB in the beginning and 190.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-11-19 14:31:00,762 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 132.1MB. Free memory was 85.3MB in the beginning and 85.2MB in the end (delta: 69.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 699.74ms. Allocated memory is still 132.1MB. Free memory was 104.5MB in the beginning and 89.6MB in the end (delta: 14.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 118.18ms. Allocated memory is still 132.1MB. Free memory was 89.6MB in the beginning and 83.3MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 143.04ms. Allocated memory is still 132.1MB. Free memory was 83.3MB in the beginning and 79.0MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 1752.29ms. Allocated memory was 132.1MB in the beginning and 167.8MB in the end (delta: 35.7MB). Free memory was 79.0MB in the beginning and 88.9MB in the end (delta: -9.9MB). Peak memory consumption was 34.0MB. Max. memory is 16.1GB. * TraceAbstraction took 11642.26ms. Allocated memory was 167.8MB in the beginning and 287.3MB in the end (delta: 119.5MB). Free memory was 88.5MB in the beginning and 221.7MB in the end (delta: -133.2MB). Peak memory consumption was 125.8MB. Max. memory is 16.1GB. * Witness Printer took 181.11ms. Allocated memory is still 287.3MB. Free memory was 221.7MB in the beginning and 190.2MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 414]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L17] int a= 1; [L18] int d= 4; [L19] int e= 5; [L20] int f= 6; [L21] int c= 3; [L22] int b= 2; [L25] int u = 21; [L26] int v = 22; [L27] int w = 23; [L28] int x = 24; [L29] int y = 25; [L30] int z = 26; [L32] int a17 = 1; [L33] int a7 = 0; [L34] int a20 = 1; [L35] int a8 = 15; [L36] int a12 = 8; [L37] int a16 = 5; [L38] int a21 = 1; [L590] int output = -1; VAL [a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, output=-1, u=21, v=22, w=23, x=24, y=25, z=26] [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L278] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L283] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L288] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L296] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L302] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L309] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L316] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L322] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L326] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L328] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L334] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L339] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) VAL [\old(input)=3, a=1, a12=8, a16=5, a17=1, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L343] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L344] a17 = 0 [L345] a16 = 4 [L346] return 21; VAL [\old(input)=3, \result=21, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=3, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] output = calculate_output(input) [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=1, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L278] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L279] a20 = 0 [L280] a17 = 1 [L281] a16 = 6 [L282] return 21; VAL [\old(input)=4, \result=21, a=1, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] output = calculate_output(input) [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=4, a=1, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=4, a=1, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=6, a17=1, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L73] a17 = 0 [L74] return 26; VAL [\old(input)=4, \result=26, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] output = calculate_output(input) [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=1, a=1, a12=8, a16=6, a17=0, a20=0, a21=1, a7=0, a8=15, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L83] a7 = 1 [L84] a17 = 1 [L85] a21 = 0 [L86] a20 = 1 [L87] a8 = 13 [L88] a16 = 5 [L89] return 26; VAL [\old(input)=1, \result=26, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=1, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] output = calculate_output(input) [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL, EXPR calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=2, a=1, a12=8, a16=5, a17=1, a20=1, a21=0, a7=1, a8=13, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND TRUE ((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1))) [L234] a21 = 1 [L235] a8 = 14 [L236] a16 = 4 [L237] a20 = 0 [L238] a7 = 0 [L239] a17 = 0 [L240] return -1; VAL [\old(input)=2, \result=-1, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=2, u=21, v=22, w=23, x=24, y=25, z=26] [L601] RET, EXPR calculate_output(input) [L601] output = calculate_output(input) [L593] COND TRUE 1 [L596] int input; [L597] input = __VERIFIER_nondet_int() [L598] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L601] CALL calculate_output(input) [L41] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L45] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L53] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L59] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L64] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L72] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L75] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L82] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L90] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L94] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L102] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L107] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L112] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L118] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L124] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L129] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L134] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L139] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L146] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L150] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L154] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L158] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L162] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L170] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L175] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L183] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L188] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L196] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L199] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L204] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L207] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L213] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L218] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L224] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L228] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L233] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L241] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L248] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L255] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L260] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L266] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L271] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L275] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L278] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L283] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L288] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L296] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L302] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L309] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L316] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L322] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L326] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L328] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L334] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L339] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L343] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L347] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L355] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L363] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L365] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L371] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L373] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L375] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L382] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L387] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L392] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L401] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L404] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L407] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L410] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L413] COND TRUE ((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1)) VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] [L414] reach_error() VAL [\old(input)=4, a=1, a12=8, a16=4, a17=0, a20=0, a21=1, a7=0, a8=14, b=2, c=3, d=4, e=5, f=6, input=4, u=21, v=22, w=23, x=24, y=25, z=26] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 76 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.3s, OverallIterations: 13, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 814 SdHoareTripleChecker+Valid, 3.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 814 mSDsluCounter, 605 SdHoareTripleChecker+Invalid, 3.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 57 mSDsCounter, 758 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2832 IncrementalHoareTripleChecker+Invalid, 3590 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 758 mSolverCounterUnsat, 549 mSDtfsCounter, 2832 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1065 GetRequests, 1039 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1139occurred in iteration=12, InterpolantAutomatonStates: 39, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 12 MinimizatonAttempts, 1136 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 2258 NumberOfCodeBlocks, 2258 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2523 ConstructedInterpolants, 0 QuantifiedInterpolants, 6954 SizeOfPredicates, 9 NumberOfNonLiveVariables, 1133 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 18 InterpolantComputations, 14 PerfectInterpolantSequences, 2281/2349 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-19 14:31:00,833 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6327e1e0-cd3e-48c1-b79a-e15570f8e4ec/bin/utaipan-UbGMyvGFUs/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE