./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e9f62e9366253d4fa7ecb8459a59d71535ca8498509abd809bca70a443281519 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 11:40:22,104 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 11:40:22,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 11:40:22,160 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 11:40:22,161 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 11:40:22,165 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 11:40:22,166 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 11:40:22,171 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 11:40:22,173 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 11:40:22,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 11:40:22,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 11:40:22,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 11:40:22,181 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 11:40:22,182 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 11:40:22,184 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 11:40:22,185 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 11:40:22,188 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 11:40:22,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 11:40:22,190 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 11:40:22,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 11:40:22,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 11:40:22,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 11:40:22,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 11:40:22,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 11:40:22,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 11:40:22,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 11:40:22,205 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 11:40:22,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 11:40:22,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 11:40:22,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 11:40:22,207 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 11:40:22,208 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 11:40:22,210 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 11:40:22,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 11:40:22,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 11:40:22,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 11:40:22,212 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 11:40:22,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 11:40:22,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 11:40:22,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 11:40:22,214 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 11:40:22,215 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-22 11:40:22,249 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 11:40:22,250 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 11:40:22,250 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 11:40:22,250 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 11:40:22,251 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 11:40:22,251 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 11:40:22,252 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 11:40:22,252 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 11:40:22,252 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 11:40:22,253 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 11:40:22,253 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-22 11:40:22,254 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 11:40:22,254 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-22 11:40:22,254 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 11:40:22,254 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 11:40:22,254 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 11:40:22,255 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 11:40:22,255 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-22 11:40:22,255 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 11:40:22,255 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 11:40:22,255 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 11:40:22,256 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 11:40:22,256 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 11:40:22,256 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 11:40:22,256 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:40:22,256 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 11:40:22,257 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 11:40:22,257 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 11:40:22,257 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 11:40:22,257 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 11:40:22,257 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 11:40:22,258 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 11:40:22,258 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 11:40:22,258 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 11:40:22,258 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e9f62e9366253d4fa7ecb8459a59d71535ca8498509abd809bca70a443281519 [2021-12-22 11:40:22,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 11:40:22,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 11:40:22,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 11:40:22,522 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 11:40:22,523 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 11:40:22,524 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c [2021-12-22 11:40:22,599 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f482076db/9872e236e8a14ba286c635c9e26d1da9/FLAG1ad0bf934 [2021-12-22 11:40:23,009 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 11:40:23,009 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c [2021-12-22 11:40:23,016 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f482076db/9872e236e8a14ba286c635c9e26d1da9/FLAG1ad0bf934 [2021-12-22 11:40:23,026 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f482076db/9872e236e8a14ba286c635c9e26d1da9 [2021-12-22 11:40:23,028 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 11:40:23,029 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 11:40:23,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 11:40:23,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 11:40:23,034 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 11:40:23,035 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,036 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b59a2ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23, skipping insertion in model container [2021-12-22 11:40:23,036 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,042 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 11:40:23,051 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 11:40:23,198 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c[951,964] [2021-12-22 11:40:23,200 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:40:23,207 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 11:40:23,220 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/fibo_2calls_20-2.c[951,964] [2021-12-22 11:40:23,220 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 11:40:23,230 INFO L208 MainTranslator]: Completed translation [2021-12-22 11:40:23,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23 WrapperNode [2021-12-22 11:40:23,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 11:40:23,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 11:40:23,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 11:40:23,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 11:40:23,238 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,257 INFO L137 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 21 [2021-12-22 11:40:23,257 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 11:40:23,258 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 11:40:23,258 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 11:40:23,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 11:40:23,264 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,283 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,285 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,286 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 11:40:23,288 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 11:40:23,288 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 11:40:23,288 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 11:40:23,289 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (1/1) ... [2021-12-22 11:40:23,295 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 11:40:23,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:23,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 11:40:23,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 11:40:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 11:40:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 11:40:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2021-12-22 11:40:23,352 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2021-12-22 11:40:23,352 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2021-12-22 11:40:23,353 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2021-12-22 11:40:23,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 11:40:23,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 11:40:23,409 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 11:40:23,412 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 11:40:23,565 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 11:40:23,570 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 11:40:23,570 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 11:40:23,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:23 BoogieIcfgContainer [2021-12-22 11:40:23,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 11:40:23,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 11:40:23,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 11:40:23,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 11:40:23,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 11:40:23" (1/3) ... [2021-12-22 11:40:23,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3100d90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:40:23, skipping insertion in model container [2021-12-22 11:40:23,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 11:40:23" (2/3) ... [2021-12-22 11:40:23,577 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3100d90e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 11:40:23, skipping insertion in model container [2021-12-22 11:40:23,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 11:40:23" (3/3) ... [2021-12-22 11:40:23,579 INFO L111 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-2.c [2021-12-22 11:40:23,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 11:40:23,583 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 11:40:23,633 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 11:40:23,639 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 11:40:23,639 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 11:40:23,667 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2021-12-22 11:40:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-12-22 11:40:23,671 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:23,671 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:23,672 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:23,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:23,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1123300790, now seen corresponding path program 1 times [2021-12-22 11:40:23,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:23,684 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257302131] [2021-12-22 11:40:23,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:23,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 11:40:23,905 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:23,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257302131] [2021-12-22 11:40:23,907 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257302131] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:40:23,908 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:40:23,908 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 11:40:23,910 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903991417] [2021-12-22 11:40:23,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:40:23,915 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:40:23,915 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:23,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:40:23,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 11:40:23,945 INFO L87 Difference]: Start difference. First operand has 29 states, 20 states have (on average 1.3) internal successors, (26), 21 states have internal predecessors, (26), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:40:24,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:24,034 INFO L93 Difference]: Finished difference Result 39 states and 48 transitions. [2021-12-22 11:40:24,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:40:24,037 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2021-12-22 11:40:24,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:24,048 INFO L225 Difference]: With dead ends: 39 [2021-12-22 11:40:24,049 INFO L226 Difference]: Without dead ends: 27 [2021-12-22 11:40:24,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 11:40:24,057 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 15 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 89 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:24,060 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 89 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:40:24,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2021-12-22 11:40:24,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2021-12-22 11:40:24,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-12-22 11:40:24,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-12-22 11:40:24,109 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 10 [2021-12-22 11:40:24,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:24,110 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-12-22 11:40:24,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:40:24,111 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-12-22 11:40:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-12-22 11:40:24,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:24,112 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:24,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 11:40:24,114 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:24,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:24,119 INFO L85 PathProgramCache]: Analyzing trace with hash 1177745932, now seen corresponding path program 1 times [2021-12-22 11:40:24,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:24,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974776047] [2021-12-22 11:40:24,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:24,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:24,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-22 11:40:24,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:24,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974776047] [2021-12-22 11:40:24,179 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974776047] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 11:40:24,179 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 11:40:24,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 11:40:24,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271999631] [2021-12-22 11:40:24,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 11:40:24,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 11:40:24,182 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:24,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 11:40:24,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 11:40:24,184 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:40:24,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:24,242 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2021-12-22 11:40:24,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 11:40:24,248 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2021-12-22 11:40:24,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:24,250 INFO L225 Difference]: With dead ends: 33 [2021-12-22 11:40:24,251 INFO L226 Difference]: Without dead ends: 29 [2021-12-22 11:40:24,255 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-12-22 11:40:24,256 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 10 mSDsluCounter, 53 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:24,256 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [13 Valid, 77 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 11:40:24,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-12-22 11:40:24,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 27. [2021-12-22 11:40:24,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.2222222222222223) internal successors, (22), 19 states have internal predecessors, (22), 5 states have call successors, (5), 2 states have call predecessors, (5), 3 states have return successors, (7), 5 states have call predecessors, (7), 5 states have call successors, (7) [2021-12-22 11:40:24,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 34 transitions. [2021-12-22 11:40:24,274 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 34 transitions. Word has length 11 [2021-12-22 11:40:24,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:24,274 INFO L470 AbstractCegarLoop]: Abstraction has 27 states and 34 transitions. [2021-12-22 11:40:24,275 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 5 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2021-12-22 11:40:24,276 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 34 transitions. [2021-12-22 11:40:24,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-12-22 11:40:24,277 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:24,277 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] [2021-12-22 11:40:24,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 11:40:24,281 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:24,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:24,285 INFO L85 PathProgramCache]: Analyzing trace with hash 2110588723, now seen corresponding path program 1 times [2021-12-22 11:40:24,285 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:24,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848163059] [2021-12-22 11:40:24,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:24,286 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:24,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:24,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 11:40:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,424 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 11:40:24,425 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:24,425 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848163059] [2021-12-22 11:40:24,425 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848163059] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:24,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [3217788] [2021-12-22 11:40:24,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:24,426 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:24,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:24,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:24,429 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-22 11:40:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:24,470 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 11:40:24,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 11:40:24,582 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:24,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 11:40:24,783 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [3217788] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:24,784 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:24,784 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 13 [2021-12-22 11:40:24,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671252817] [2021-12-22 11:40:24,786 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:24,787 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 11:40:24,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:24,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 11:40:24,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:40:24,790 INFO L87 Difference]: Start difference. First operand 27 states and 34 transitions. Second operand has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-22 11:40:24,947 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:24,947 INFO L93 Difference]: Finished difference Result 55 states and 75 transitions. [2021-12-22 11:40:24,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 11:40:24,948 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) Word has length 23 [2021-12-22 11:40:24,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:24,949 INFO L225 Difference]: With dead ends: 55 [2021-12-22 11:40:24,949 INFO L226 Difference]: Without dead ends: 31 [2021-12-22 11:40:24,950 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 43 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-12-22 11:40:24,951 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 31 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 143 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:24,951 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 136 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 143 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:40:24,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2021-12-22 11:40:24,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2021-12-22 11:40:24,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 21 states have internal predecessors, (23), 5 states have call successors, (5), 2 states have call predecessors, (5), 4 states have return successors, (8), 5 states have call predecessors, (8), 5 states have call successors, (8) [2021-12-22 11:40:24,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2021-12-22 11:40:24,957 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 23 [2021-12-22 11:40:24,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:24,958 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2021-12-22 11:40:24,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 10 states have (on average 3.2) internal successors, (32), 13 states have internal predecessors, (32), 8 states have call successors, (8), 1 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 8 states have call successors, (8) [2021-12-22 11:40:24,958 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2021-12-22 11:40:24,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2021-12-22 11:40:24,959 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:24,960 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:24,983 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-22 11:40:25,182 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:25,183 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:25,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:25,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1277869167, now seen corresponding path program 1 times [2021-12-22 11:40:25,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:25,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79154201] [2021-12-22 11:40:25,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:25,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:25,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:25,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:25,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:25,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:25,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 11:40:25,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:25,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79154201] [2021-12-22 11:40:25,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79154201] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:25,289 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462687835] [2021-12-22 11:40:25,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:25,290 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:25,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:25,291 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:25,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-22 11:40:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:25,324 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2021-12-22 11:40:25,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:25,407 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 11:40:25,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:25,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-12-22 11:40:25,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462687835] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:25,590 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:25,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 13 [2021-12-22 11:40:25,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513408413] [2021-12-22 11:40:25,591 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:25,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-12-22 11:40:25,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:25,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-12-22 11:40:25,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2021-12-22 11:40:25,592 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-22 11:40:25,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:25,730 INFO L93 Difference]: Finished difference Result 51 states and 71 transitions. [2021-12-22 11:40:25,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-22 11:40:25,730 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) Word has length 24 [2021-12-22 11:40:25,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:25,733 INFO L225 Difference]: With dead ends: 51 [2021-12-22 11:40:25,733 INFO L226 Difference]: Without dead ends: 47 [2021-12-22 11:40:25,733 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-12-22 11:40:25,734 INFO L933 BasicCegarLoop]: 20 mSDtfsCounter, 47 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:25,735 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [57 Valid, 110 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:40:25,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2021-12-22 11:40:25,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 45. [2021-12-22 11:40:25,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 30 states have (on average 1.2666666666666666) internal successors, (38), 31 states have internal predecessors, (38), 9 states have call successors, (9), 4 states have call predecessors, (9), 5 states have return successors, (15), 9 states have call predecessors, (15), 9 states have call successors, (15) [2021-12-22 11:40:25,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 62 transitions. [2021-12-22 11:40:25,743 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 62 transitions. Word has length 24 [2021-12-22 11:40:25,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:25,743 INFO L470 AbstractCegarLoop]: Abstraction has 45 states and 62 transitions. [2021-12-22 11:40:25,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 2.909090909090909) internal successors, (32), 13 states have internal predecessors, (32), 7 states have call successors, (7), 1 states have call predecessors, (7), 3 states have return successors, (7), 3 states have call predecessors, (7), 7 states have call successors, (7) [2021-12-22 11:40:25,744 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 62 transitions. [2021-12-22 11:40:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-12-22 11:40:25,745 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:25,746 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-22 11:40:25,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:25,967 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2021-12-22 11:40:25,967 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:25,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:25,968 INFO L85 PathProgramCache]: Analyzing trace with hash -2061621832, now seen corresponding path program 1 times [2021-12-22 11:40:25,968 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:25,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652738595] [2021-12-22 11:40:25,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:25,968 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:25,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:25,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:26,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:26,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:26,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:26,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:26,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:26,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2021-12-22 11:40:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:26,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2021-12-22 11:40:26,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:26,076 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-22 11:40:26,076 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:26,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652738595] [2021-12-22 11:40:26,076 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652738595] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:26,077 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465380279] [2021-12-22 11:40:26,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:26,077 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:26,077 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:26,078 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:26,079 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-22 11:40:26,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:26,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:40:26,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:26,237 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-12-22 11:40:26,237 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:26,590 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 11:40:26,591 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465380279] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:26,591 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:26,591 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 15 [2021-12-22 11:40:26,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512227215] [2021-12-22 11:40:26,592 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:26,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-12-22 11:40:26,592 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:26,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-12-22 11:40:26,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=169, Unknown=0, NotChecked=0, Total=210 [2021-12-22 11:40:26,593 INFO L87 Difference]: Start difference. First operand 45 states and 62 transitions. Second operand has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-22 11:40:26,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:26,822 INFO L93 Difference]: Finished difference Result 105 states and 167 transitions. [2021-12-22 11:40:26,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-12-22 11:40:26,823 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) Word has length 36 [2021-12-22 11:40:26,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:26,826 INFO L225 Difference]: With dead ends: 105 [2021-12-22 11:40:26,826 INFO L226 Difference]: Without dead ends: 63 [2021-12-22 11:40:26,827 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 75 SyntacticMatches, 4 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=369, Unknown=0, NotChecked=0, Total=462 [2021-12-22 11:40:26,827 INFO L933 BasicCegarLoop]: 21 mSDtfsCounter, 66 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 159 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:26,828 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [71 Valid, 159 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-22 11:40:26,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2021-12-22 11:40:26,837 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2021-12-22 11:40:26,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 41 states have (on average 1.2439024390243902) internal successors, (51), 44 states have internal predecessors, (51), 12 states have call successors, (12), 5 states have call predecessors, (12), 9 states have return successors, (29), 13 states have call predecessors, (29), 12 states have call successors, (29) [2021-12-22 11:40:26,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 92 transitions. [2021-12-22 11:40:26,839 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 92 transitions. Word has length 36 [2021-12-22 11:40:26,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:26,839 INFO L470 AbstractCegarLoop]: Abstraction has 63 states and 92 transitions. [2021-12-22 11:40:26,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 15 states have internal predecessors, (47), 11 states have call successors, (13), 1 states have call predecessors, (13), 5 states have return successors, (13), 3 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-22 11:40:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 92 transitions. [2021-12-22 11:40:26,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-12-22 11:40:26,841 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:26,841 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 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] [2021-12-22 11:40:26,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-12-22 11:40:27,043 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:27,044 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:27,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:27,044 INFO L85 PathProgramCache]: Analyzing trace with hash 1167294498, now seen corresponding path program 1 times [2021-12-22 11:40:27,044 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:27,044 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778152882] [2021-12-22 11:40:27,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:27,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:27,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:27,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:27,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:27,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:27,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,134 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-22 11:40:27,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:27,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778152882] [2021-12-22 11:40:27,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778152882] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:27,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621911668] [2021-12-22 11:40:27,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:27,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:27,135 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:27,137 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:27,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-22 11:40:27,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:27,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-12-22 11:40:27,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:27,338 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-12-22 11:40:27,339 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:27,672 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 11 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-12-22 11:40:27,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621911668] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:27,673 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:27,673 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 18 [2021-12-22 11:40:27,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42547218] [2021-12-22 11:40:27,673 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:27,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-12-22 11:40:27,674 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:27,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-12-22 11:40:27,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2021-12-22 11:40:27,675 INFO L87 Difference]: Start difference. First operand 63 states and 92 transitions. Second operand has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-22 11:40:27,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:27,998 INFO L93 Difference]: Finished difference Result 177 states and 321 transitions. [2021-12-22 11:40:27,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-12-22 11:40:27,998 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) Word has length 37 [2021-12-22 11:40:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:28,000 INFO L225 Difference]: With dead ends: 177 [2021-12-22 11:40:28,001 INFO L226 Difference]: Without dead ends: 117 [2021-12-22 11:40:28,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=530, Unknown=0, NotChecked=0, Total=650 [2021-12-22 11:40:28,003 INFO L933 BasicCegarLoop]: 32 mSDtfsCounter, 62 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:28,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 238 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-22 11:40:28,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2021-12-22 11:40:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 103. [2021-12-22 11:40:28,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 66 states have (on average 1.2121212121212122) internal successors, (80), 69 states have internal predecessors, (80), 21 states have call successors, (21), 7 states have call predecessors, (21), 15 states have return successors, (65), 26 states have call predecessors, (65), 21 states have call successors, (65) [2021-12-22 11:40:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 166 transitions. [2021-12-22 11:40:28,021 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 166 transitions. Word has length 37 [2021-12-22 11:40:28,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:28,021 INFO L470 AbstractCegarLoop]: Abstraction has 103 states and 166 transitions. [2021-12-22 11:40:28,022 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 3.125) internal successors, (50), 18 states have internal predecessors, (50), 11 states have call successors, (13), 1 states have call predecessors, (13), 7 states have return successors, (13), 6 states have call predecessors, (13), 11 states have call successors, (13) [2021-12-22 11:40:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 166 transitions. [2021-12-22 11:40:28,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2021-12-22 11:40:28,024 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:28,024 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 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] [2021-12-22 11:40:28,049 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:28,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:28,240 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:28,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:28,241 INFO L85 PathProgramCache]: Analyzing trace with hash 384535367, now seen corresponding path program 1 times [2021-12-22 11:40:28,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:28,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152173490] [2021-12-22 11:40:28,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:28,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:28,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:28,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:28,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,335 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:28,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:28,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 11:40:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,369 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-12-22 11:40:28,369 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:28,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152173490] [2021-12-22 11:40:28,369 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152173490] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:28,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485095951] [2021-12-22 11:40:28,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:28,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:28,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:28,371 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:28,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-22 11:40:28,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:28,443 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-22 11:40:28,445 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:28,596 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-12-22 11:40:28,596 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:29,101 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-12-22 11:40:29,101 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485095951] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:29,101 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:29,101 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 11] total 20 [2021-12-22 11:40:29,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [64483262] [2021-12-22 11:40:29,102 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:29,104 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-12-22 11:40:29,104 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:29,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-12-22 11:40:29,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=312, Unknown=0, NotChecked=0, Total=380 [2021-12-22 11:40:29,105 INFO L87 Difference]: Start difference. First operand 103 states and 166 transitions. Second operand has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-22 11:40:29,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:29,498 INFO L93 Difference]: Finished difference Result 255 states and 495 transitions. [2021-12-22 11:40:29,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-12-22 11:40:29,498 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) Word has length 51 [2021-12-22 11:40:29,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:29,501 INFO L225 Difference]: With dead ends: 255 [2021-12-22 11:40:29,501 INFO L226 Difference]: Without dead ends: 155 [2021-12-22 11:40:29,502 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 114 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812 [2021-12-22 11:40:29,503 INFO L933 BasicCegarLoop]: 31 mSDtfsCounter, 87 mSDsluCounter, 191 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 494 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:29,503 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 222 Invalid, 494 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:40:29,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-22 11:40:29,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 109. [2021-12-22 11:40:29,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 71 states have (on average 1.2253521126760563) internal successors, (87), 72 states have internal predecessors, (87), 24 states have call successors, (24), 9 states have call predecessors, (24), 13 states have return successors, (66), 27 states have call predecessors, (66), 24 states have call successors, (66) [2021-12-22 11:40:29,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 177 transitions. [2021-12-22 11:40:29,524 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 177 transitions. Word has length 51 [2021-12-22 11:40:29,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:29,525 INFO L470 AbstractCegarLoop]: Abstraction has 109 states and 177 transitions. [2021-12-22 11:40:29,525 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 18 states have (on average 3.3333333333333335) internal successors, (60), 20 states have internal predecessors, (60), 14 states have call successors, (16), 1 states have call predecessors, (16), 8 states have return successors, (18), 7 states have call predecessors, (18), 14 states have call successors, (18) [2021-12-22 11:40:29,525 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 177 transitions. [2021-12-22 11:40:29,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2021-12-22 11:40:29,528 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:29,528 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:29,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:29,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:29,748 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:29,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:29,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1851863125, now seen corresponding path program 1 times [2021-12-22 11:40:29,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:29,748 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434441953] [2021-12-22 11:40:29,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:29,748 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:29,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:29,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:29,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:29,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:29,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:29,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 11:40:29,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:29,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:29,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:29,939 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-12-22 11:40:29,939 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:29,939 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434441953] [2021-12-22 11:40:29,939 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434441953] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:29,940 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1173872246] [2021-12-22 11:40:29,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:29,940 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:29,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:29,941 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:29,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-22 11:40:30,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:30,010 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-22 11:40:30,013 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:30,222 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-22 11:40:30,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:30,968 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 78 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2021-12-22 11:40:30,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1173872246] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:30,969 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:30,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 13] total 24 [2021-12-22 11:40:30,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221529394] [2021-12-22 11:40:30,969 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:30,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-12-22 11:40:30,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:30,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-12-22 11:40:30,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2021-12-22 11:40:30,971 INFO L87 Difference]: Start difference. First operand 109 states and 177 transitions. Second operand has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2021-12-22 11:40:31,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:31,440 INFO L93 Difference]: Finished difference Result 240 states and 462 transitions. [2021-12-22 11:40:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-12-22 11:40:31,441 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) Word has length 79 [2021-12-22 11:40:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:31,443 INFO L225 Difference]: With dead ends: 240 [2021-12-22 11:40:31,443 INFO L226 Difference]: Without dead ends: 107 [2021-12-22 11:40:31,445 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=221, Invalid=1039, Unknown=0, NotChecked=0, Total=1260 [2021-12-22 11:40:31,446 INFO L933 BasicCegarLoop]: 28 mSDtfsCounter, 94 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 500 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 275 SdHoareTripleChecker+Invalid, 614 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:31,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [101 Valid, 275 Invalid, 614 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 500 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:40:31,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-22 11:40:31,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 84. [2021-12-22 11:40:31,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 57 states have (on average 1.1754385964912282) internal successors, (67), 58 states have internal predecessors, (67), 14 states have call successors, (14), 8 states have call predecessors, (14), 12 states have return successors, (35), 17 states have call predecessors, (35), 14 states have call successors, (35) [2021-12-22 11:40:31,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 116 transitions. [2021-12-22 11:40:31,474 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 116 transitions. Word has length 79 [2021-12-22 11:40:31,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:31,474 INFO L470 AbstractCegarLoop]: Abstraction has 84 states and 116 transitions. [2021-12-22 11:40:31,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 22 states have (on average 3.3636363636363638) internal successors, (74), 24 states have internal predecessors, (74), 18 states have call successors, (22), 1 states have call predecessors, (22), 9 states have return successors, (25), 11 states have call predecessors, (25), 18 states have call successors, (25) [2021-12-22 11:40:31,475 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 116 transitions. [2021-12-22 11:40:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-22 11:40:31,478 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:31,478 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 8, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:31,500 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:31,699 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:31,700 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:31,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:31,700 INFO L85 PathProgramCache]: Analyzing trace with hash -31484793, now seen corresponding path program 1 times [2021-12-22 11:40:31,700 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:31,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108502960] [2021-12-22 11:40:31,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:31,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:31,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:31,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:31,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:31,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-22 11:40:31,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:31,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:31,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-12-22 11:40:31,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:31,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:31,952 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 66 proven. 113 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2021-12-22 11:40:31,952 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:31,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108502960] [2021-12-22 11:40:31,953 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [108502960] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:31,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574886907] [2021-12-22 11:40:31,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:31,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:31,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:31,954 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:31,959 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-22 11:40:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:32,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-22 11:40:32,089 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:32,359 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 182 refuted. 0 times theorem prover too weak. 233 trivial. 0 not checked. [2021-12-22 11:40:32,359 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:33,490 INFO L134 CoverageAnalysis]: Checked inductivity of 444 backedges. 29 proven. 198 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2021-12-22 11:40:33,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574886907] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:33,491 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:33,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 15] total 26 [2021-12-22 11:40:33,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877225080] [2021-12-22 11:40:33,491 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:33,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-22 11:40:33,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:33,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-22 11:40:33,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2021-12-22 11:40:33,493 INFO L87 Difference]: Start difference. First operand 84 states and 116 transitions. Second operand has 26 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 26 states have internal predecessors, (83), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2021-12-22 11:40:33,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:33,951 INFO L93 Difference]: Finished difference Result 214 states and 372 transitions. [2021-12-22 11:40:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-12-22 11:40:33,951 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 26 states have internal predecessors, (83), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) Word has length 134 [2021-12-22 11:40:33,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:33,953 INFO L225 Difference]: With dead ends: 214 [2021-12-22 11:40:33,953 INFO L226 Difference]: Without dead ends: 134 [2021-12-22 11:40:33,954 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=275, Invalid=1285, Unknown=0, NotChecked=0, Total=1560 [2021-12-22 11:40:33,955 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 101 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 560 mSolverCounterSat, 113 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 113 IncrementalHoareTripleChecker+Valid, 560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:33,955 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [110 Valid, 320 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [113 Valid, 560 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:40:33,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2021-12-22 11:40:33,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 114. [2021-12-22 11:40:33,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 77 states have (on average 1.2077922077922079) internal successors, (93), 78 states have internal predecessors, (93), 20 states have call successors, (20), 11 states have call predecessors, (20), 16 states have return successors, (56), 24 states have call predecessors, (56), 20 states have call successors, (56) [2021-12-22 11:40:33,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 169 transitions. [2021-12-22 11:40:33,965 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 169 transitions. Word has length 134 [2021-12-22 11:40:33,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:33,966 INFO L470 AbstractCegarLoop]: Abstraction has 114 states and 169 transitions. [2021-12-22 11:40:33,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 3.4583333333333335) internal successors, (83), 26 states have internal predecessors, (83), 20 states have call successors, (25), 1 states have call predecessors, (25), 10 states have return successors, (32), 12 states have call predecessors, (32), 20 states have call successors, (32) [2021-12-22 11:40:33,966 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 169 transitions. [2021-12-22 11:40:33,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 378 [2021-12-22 11:40:33,971 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:33,971 INFO L514 BasicCegarLoop]: trace histogram [29, 29, 26, 26, 22, 21, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 8, 8, 8, 4, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:33,995 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:34,195 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:34,196 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:34,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:34,196 INFO L85 PathProgramCache]: Analyzing trace with hash 1457328553, now seen corresponding path program 2 times [2021-12-22 11:40:34,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:34,196 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392425911] [2021-12-22 11:40:34,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:34,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:40:34,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:34,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:34,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 11:40:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:34,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:34,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:34,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:40:34,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:34,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:34,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:34,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:34,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:34,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:34,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4041 backedges. 203 proven. 574 refuted. 0 times theorem prover too weak. 3264 trivial. 0 not checked. [2021-12-22 11:40:34,850 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:34,850 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392425911] [2021-12-22 11:40:34,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392425911] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:34,851 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559152012] [2021-12-22 11:40:34,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-12-22 11:40:34,851 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:34,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:34,852 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:34,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-22 11:40:35,023 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-12-22 11:40:35,023 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:40:35,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 860 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-22 11:40:35,036 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:35,608 INFO L134 CoverageAnalysis]: Checked inductivity of 4041 backedges. 113 proven. 807 refuted. 0 times theorem prover too weak. 3121 trivial. 0 not checked. [2021-12-22 11:40:35,608 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:37,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4041 backedges. 113 proven. 831 refuted. 0 times theorem prover too weak. 3097 trivial. 0 not checked. [2021-12-22 11:40:37,635 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559152012] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:37,635 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:37,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 17] total 28 [2021-12-22 11:40:37,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325474047] [2021-12-22 11:40:37,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:37,636 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-12-22 11:40:37,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:37,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-12-22 11:40:37,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=119, Invalid=637, Unknown=0, NotChecked=0, Total=756 [2021-12-22 11:40:37,637 INFO L87 Difference]: Start difference. First operand 114 states and 169 transitions. Second operand has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) [2021-12-22 11:40:38,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:38,194 INFO L93 Difference]: Finished difference Result 260 states and 447 transitions. [2021-12-22 11:40:38,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-12-22 11:40:38,195 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) Word has length 377 [2021-12-22 11:40:38,197 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:38,199 INFO L225 Difference]: With dead ends: 260 [2021-12-22 11:40:38,199 INFO L226 Difference]: Without dead ends: 155 [2021-12-22 11:40:38,201 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 850 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=342, Invalid=1638, Unknown=0, NotChecked=0, Total=1980 [2021-12-22 11:40:38,201 INFO L933 BasicCegarLoop]: 30 mSDtfsCounter, 97 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 675 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 99 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 675 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:38,202 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [99 Valid, 364 Invalid, 796 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 675 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-22 11:40:38,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2021-12-22 11:40:38,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2021-12-22 11:40:38,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 101 states have (on average 1.2376237623762376) internal successors, (125), 99 states have internal predecessors, (125), 26 states have call successors, (26), 18 states have call predecessors, (26), 17 states have return successors, (73), 27 states have call predecessors, (73), 26 states have call successors, (73) [2021-12-22 11:40:38,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 224 transitions. [2021-12-22 11:40:38,226 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 224 transitions. Word has length 377 [2021-12-22 11:40:38,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:38,226 INFO L470 AbstractCegarLoop]: Abstraction has 145 states and 224 transitions. [2021-12-22 11:40:38,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 26 states have (on average 3.5) internal successors, (91), 28 states have internal predecessors, (91), 22 states have call successors, (28), 1 states have call predecessors, (28), 11 states have return successors, (37), 14 states have call predecessors, (37), 22 states have call successors, (37) [2021-12-22 11:40:38,227 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 224 transitions. [2021-12-22 11:40:38,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2021-12-22 11:40:38,233 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:38,233 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 29, 29, 25, 25, 17, 17, 17, 17, 17, 17, 17, 14, 14, 14, 14, 14, 14, 14, 11, 9, 8, 4, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:38,261 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:38,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-12-22 11:40:38,460 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:38,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:38,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1385929291, now seen corresponding path program 3 times [2021-12-22 11:40:38,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:38,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [135284697] [2021-12-22 11:40:38,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:38,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:38,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:38,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:38,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:38,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:39,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:39,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 11:40:39,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:39,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 11:40:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:39,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:39,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-22 11:40:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:39,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:39,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:39,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:39,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:39,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:39,254 INFO L134 CoverageAnalysis]: Checked inductivity of 5376 backedges. 283 proven. 709 refuted. 0 times theorem prover too weak. 4384 trivial. 0 not checked. [2021-12-22 11:40:39,254 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:39,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [135284697] [2021-12-22 11:40:39,254 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [135284697] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:39,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961590753] [2021-12-22 11:40:39,255 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-12-22 11:40:39,255 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:39,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:39,256 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:39,283 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-22 11:40:39,387 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2021-12-22 11:40:39,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:40:39,389 INFO L263 TraceCheckSpWp]: Trace formula consists of 333 conjuncts, 12 conjunts are in the unsatisfiable core [2021-12-22 11:40:39,395 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:40,040 INFO L134 CoverageAnalysis]: Checked inductivity of 5376 backedges. 849 proven. 42 refuted. 0 times theorem prover too weak. 4485 trivial. 0 not checked. [2021-12-22 11:40:40,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:41,685 INFO L134 CoverageAnalysis]: Checked inductivity of 5376 backedges. 849 proven. 43 refuted. 0 times theorem prover too weak. 4484 trivial. 0 not checked. [2021-12-22 11:40:41,685 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961590753] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:41,686 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:41,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 13] total 26 [2021-12-22 11:40:41,686 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165111328] [2021-12-22 11:40:41,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:41,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-12-22 11:40:41,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:41,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-12-22 11:40:41,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2021-12-22 11:40:41,688 INFO L87 Difference]: Start difference. First operand 145 states and 224 transitions. Second operand has 26 states, 25 states have (on average 3.44) internal successors, (86), 26 states have internal predecessors, (86), 15 states have call successors, (26), 1 states have call predecessors, (26), 9 states have return successors, (32), 16 states have call predecessors, (32), 15 states have call successors, (32) [2021-12-22 11:40:42,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:42,053 INFO L93 Difference]: Finished difference Result 308 states and 520 transitions. [2021-12-22 11:40:42,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-22 11:40:42,053 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 3.44) internal successors, (86), 26 states have internal predecessors, (86), 15 states have call successors, (26), 1 states have call predecessors, (26), 9 states have return successors, (32), 16 states have call predecessors, (32), 15 states have call successors, (32) Word has length 432 [2021-12-22 11:40:42,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:42,056 INFO L225 Difference]: With dead ends: 308 [2021-12-22 11:40:42,056 INFO L226 Difference]: Without dead ends: 168 [2021-12-22 11:40:42,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1012 GetRequests, 977 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=991, Unknown=0, NotChecked=0, Total=1190 [2021-12-22 11:40:42,058 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 85 mSDsluCounter, 275 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 309 SdHoareTripleChecker+Invalid, 540 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:42,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [87 Valid, 309 Invalid, 540 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:40:42,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-12-22 11:40:42,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 165. [2021-12-22 11:40:42,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 116 states have (on average 1.1379310344827587) internal successors, (132), 112 states have internal predecessors, (132), 32 states have call successors, (32), 24 states have call predecessors, (32), 16 states have return successors, (79), 28 states have call predecessors, (79), 32 states have call successors, (79) [2021-12-22 11:40:42,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 243 transitions. [2021-12-22 11:40:42,077 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 243 transitions. Word has length 432 [2021-12-22 11:40:42,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:42,078 INFO L470 AbstractCegarLoop]: Abstraction has 165 states and 243 transitions. [2021-12-22 11:40:42,078 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 3.44) internal successors, (86), 26 states have internal predecessors, (86), 15 states have call successors, (26), 1 states have call predecessors, (26), 9 states have return successors, (32), 16 states have call predecessors, (32), 15 states have call successors, (32) [2021-12-22 11:40:42,078 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 243 transitions. [2021-12-22 11:40:42,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 598 [2021-12-22 11:40:42,082 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:42,082 INFO L514 BasicCegarLoop]: trace histogram [45, 45, 42, 42, 37, 34, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 21, 21, 16, 12, 8, 8, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:42,109 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:42,295 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:42,295 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:42,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:42,296 INFO L85 PathProgramCache]: Analyzing trace with hash 1952053737, now seen corresponding path program 4 times [2021-12-22 11:40:42,296 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:42,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636236658] [2021-12-22 11:40:42,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:42,296 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:42,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:42,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:42,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:42,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:42,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:42,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:42,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:42,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:42,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 11:40:43,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:43,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:43,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:43,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 296 [2021-12-22 11:40:43,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:43,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:43,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:43,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-22 11:40:43,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,340 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:43,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:43,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:43,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:43,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:43,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:43,382 INFO L134 CoverageAnalysis]: Checked inductivity of 10395 backedges. 367 proven. 1344 refuted. 0 times theorem prover too weak. 8684 trivial. 0 not checked. [2021-12-22 11:40:43,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:43,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636236658] [2021-12-22 11:40:43,383 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636236658] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:43,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [643160712] [2021-12-22 11:40:43,383 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-12-22 11:40:43,383 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:43,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:43,384 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:43,411 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-22 11:40:43,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-12-22 11:40:43,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:40:43,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 1060 conjuncts, 18 conjunts are in the unsatisfiable core [2021-12-22 11:40:43,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:44,397 INFO L134 CoverageAnalysis]: Checked inductivity of 10395 backedges. 4111 proven. 176 refuted. 0 times theorem prover too weak. 6108 trivial. 0 not checked. [2021-12-22 11:40:44,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:47,266 INFO L134 CoverageAnalysis]: Checked inductivity of 10395 backedges. 342 proven. 1742 refuted. 0 times theorem prover too weak. 8311 trivial. 0 not checked. [2021-12-22 11:40:47,266 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [643160712] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:47,266 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:47,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 19] total 31 [2021-12-22 11:40:47,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983433319] [2021-12-22 11:40:47,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:47,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-12-22 11:40:47,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:47,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-12-22 11:40:47,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=778, Unknown=0, NotChecked=0, Total=930 [2021-12-22 11:40:47,269 INFO L87 Difference]: Start difference. First operand 165 states and 243 transitions. Second operand has 31 states, 31 states have (on average 3.6129032258064515) internal successors, (112), 31 states have internal predecessors, (112), 25 states have call successors, (36), 2 states have call predecessors, (36), 11 states have return successors, (43), 15 states have call predecessors, (43), 25 states have call successors, (43) [2021-12-22 11:40:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:47,682 INFO L93 Difference]: Finished difference Result 338 states and 521 transitions. [2021-12-22 11:40:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-12-22 11:40:47,683 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.6129032258064515) internal successors, (112), 31 states have internal predecessors, (112), 25 states have call successors, (36), 2 states have call predecessors, (36), 11 states have return successors, (43), 15 states have call predecessors, (43), 25 states have call successors, (43) Word has length 597 [2021-12-22 11:40:47,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:47,685 INFO L225 Difference]: With dead ends: 338 [2021-12-22 11:40:47,685 INFO L226 Difference]: Without dead ends: 180 [2021-12-22 11:40:47,687 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1392 GetRequests, 1352 SyntacticMatches, 2 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=277, Invalid=1283, Unknown=0, NotChecked=0, Total=1560 [2021-12-22 11:40:47,687 INFO L933 BasicCegarLoop]: 35 mSDtfsCounter, 99 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 539 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 100 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 645 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 539 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:47,688 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [100 Valid, 322 Invalid, 645 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 539 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:40:47,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-12-22 11:40:47,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 175. [2021-12-22 11:40:47,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 124 states have (on average 1.096774193548387) internal successors, (136), 119 states have internal predecessors, (136), 34 states have call successors, (34), 27 states have call predecessors, (34), 16 states have return successors, (83), 28 states have call predecessors, (83), 34 states have call successors, (83) [2021-12-22 11:40:47,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 253 transitions. [2021-12-22 11:40:47,699 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 253 transitions. Word has length 597 [2021-12-22 11:40:47,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:47,699 INFO L470 AbstractCegarLoop]: Abstraction has 175 states and 253 transitions. [2021-12-22 11:40:47,699 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.6129032258064515) internal successors, (112), 31 states have internal predecessors, (112), 25 states have call successors, (36), 2 states have call predecessors, (36), 11 states have return successors, (43), 15 states have call predecessors, (43), 25 states have call successors, (43) [2021-12-22 11:40:47,700 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 253 transitions. [2021-12-22 11:40:47,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 461 [2021-12-22 11:40:47,702 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:47,702 INFO L514 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:47,730 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:47,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-12-22 11:40:47,915 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:47,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:47,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1402769443, now seen corresponding path program 5 times [2021-12-22 11:40:47,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:47,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006911911] [2021-12-22 11:40:47,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:47,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:47,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:48,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:48,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:40:48,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:48,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:48,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:40:48,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,598 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:48,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:48,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:48,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:48,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:48,701 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 179 proven. 1128 refuted. 0 times theorem prover too weak. 4775 trivial. 0 not checked. [2021-12-22 11:40:48,702 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:48,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006911911] [2021-12-22 11:40:48,702 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006911911] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:48,702 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014235090] [2021-12-22 11:40:48,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-12-22 11:40:48,702 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:48,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:48,704 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:48,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-12-22 11:40:48,961 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 32 check-sat command(s) [2021-12-22 11:40:48,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:40:48,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 14 conjunts are in the unsatisfiable core [2021-12-22 11:40:48,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:49,548 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 705 proven. 290 refuted. 0 times theorem prover too weak. 5087 trivial. 0 not checked. [2021-12-22 11:40:49,549 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:40:51,328 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 707 proven. 306 refuted. 0 times theorem prover too weak. 5069 trivial. 0 not checked. [2021-12-22 11:40:51,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014235090] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:40:51,328 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:40:51,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 11, 15] total 33 [2021-12-22 11:40:51,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710792000] [2021-12-22 11:40:51,329 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:40:51,331 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-12-22 11:40:51,331 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:40:51,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-12-22 11:40:51,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056 [2021-12-22 11:40:51,332 INFO L87 Difference]: Start difference. First operand 175 states and 253 transitions. Second operand has 33 states, 31 states have (on average 2.903225806451613) internal successors, (90), 33 states have internal predecessors, (90), 22 states have call successors, (28), 1 states have call predecessors, (28), 13 states have return successors, (36), 23 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-22 11:40:51,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:40:51,759 INFO L93 Difference]: Finished difference Result 471 states and 749 transitions. [2021-12-22 11:40:51,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-12-22 11:40:51,760 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 31 states have (on average 2.903225806451613) internal successors, (90), 33 states have internal predecessors, (90), 22 states have call successors, (28), 1 states have call predecessors, (28), 13 states have return successors, (36), 23 states have call predecessors, (36), 22 states have call successors, (36) Word has length 460 [2021-12-22 11:40:51,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:40:51,765 INFO L225 Difference]: With dead ends: 471 [2021-12-22 11:40:51,765 INFO L226 Difference]: Without dead ends: 467 [2021-12-22 11:40:51,766 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1075 GetRequests, 1039 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 550 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=271, Invalid=1135, Unknown=0, NotChecked=0, Total=1406 [2021-12-22 11:40:51,766 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 186 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 216 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 745 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 217 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-22 11:40:51,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [216 Valid, 236 Invalid, 745 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [217 Valid, 528 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-22 11:40:51,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 467 states. [2021-12-22 11:40:51,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 467 to 444. [2021-12-22 11:40:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 444 states, 303 states have (on average 1.0792079207920793) internal successors, (327), 295 states have internal predecessors, (327), 99 states have call successors, (99), 58 states have call predecessors, (99), 41 states have return successors, (279), 90 states have call predecessors, (279), 99 states have call successors, (279) [2021-12-22 11:40:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 444 states to 444 states and 705 transitions. [2021-12-22 11:40:51,795 INFO L78 Accepts]: Start accepts. Automaton has 444 states and 705 transitions. Word has length 460 [2021-12-22 11:40:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:40:51,796 INFO L470 AbstractCegarLoop]: Abstraction has 444 states and 705 transitions. [2021-12-22 11:40:51,797 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 31 states have (on average 2.903225806451613) internal successors, (90), 33 states have internal predecessors, (90), 22 states have call successors, (28), 1 states have call predecessors, (28), 13 states have return successors, (36), 23 states have call predecessors, (36), 22 states have call successors, (36) [2021-12-22 11:40:51,797 INFO L276 IsEmpty]: Start isEmpty. Operand 444 states and 705 transitions. [2021-12-22 11:40:51,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1319 [2021-12-22 11:40:51,810 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:40:51,811 INFO L514 BasicCegarLoop]: trace histogram [99, 99, 94, 94, 79, 77, 49, 49, 49, 49, 49, 49, 49, 47, 47, 47, 47, 47, 47, 47, 32, 28, 20, 17, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:40:51,838 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-12-22 11:40:52,037 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-12-22 11:40:52,037 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:40:52,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:40:52,038 INFO L85 PathProgramCache]: Analyzing trace with hash -625166436, now seen corresponding path program 6 times [2021-12-22 11:40:52,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:40:52,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26728451] [2021-12-22 11:40:52,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:40:52,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:40:52,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:53,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:40:53,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:53,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:53,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:54,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:54,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:40:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,353 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:54,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:40:54,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:54,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:40:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:54,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,950 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:54,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:54,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:54,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 391 [2021-12-22 11:40:55,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 786 [2021-12-22 11:40:55,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,374 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:55,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:40:55,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,441 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:40:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:55,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,481 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:40:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-22 11:40:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,535 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2021-12-22 11:40:55,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:40:55,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:40:55,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:40:55,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:40:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:40:55,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:40:55,594 INFO L134 CoverageAnalysis]: Checked inductivity of 51923 backedges. 1447 proven. 5789 refuted. 0 times theorem prover too weak. 44687 trivial. 0 not checked. [2021-12-22 11:40:55,595 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:40:55,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26728451] [2021-12-22 11:40:55,596 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26728451] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:40:55,596 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558681196] [2021-12-22 11:40:55,596 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-12-22 11:40:55,596 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:40:55,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:40:55,597 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:40:55,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-12-22 11:40:55,873 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s) [2021-12-22 11:40:55,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-12-22 11:40:55,877 INFO L263 TraceCheckSpWp]: Trace formula consists of 768 conjuncts, 16 conjunts are in the unsatisfiable core [2021-12-22 11:40:55,893 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:40:57,468 INFO L134 CoverageAnalysis]: Checked inductivity of 51923 backedges. 780 proven. 2817 refuted. 0 times theorem prover too weak. 48326 trivial. 0 not checked. [2021-12-22 11:40:57,468 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:41:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 51923 backedges. 782 proven. 2839 refuted. 0 times theorem prover too weak. 48302 trivial. 0 not checked. [2021-12-22 11:41:02,257 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558681196] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:41:02,257 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:41:02,258 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 12, 17] total 45 [2021-12-22 11:41:02,258 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325486682] [2021-12-22 11:41:02,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:41:02,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2021-12-22 11:41:02,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:41:02,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2021-12-22 11:41:02,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=1707, Unknown=0, NotChecked=0, Total=1980 [2021-12-22 11:41:02,261 INFO L87 Difference]: Start difference. First operand 444 states and 705 transitions. Second operand has 45 states, 43 states have (on average 2.7906976744186047) internal successors, (120), 45 states have internal predecessors, (120), 30 states have call successors, (39), 1 states have call predecessors, (39), 20 states have return successors, (55), 36 states have call predecessors, (55), 30 states have call successors, (55) [2021-12-22 11:41:03,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:41:03,634 INFO L93 Difference]: Finished difference Result 991 states and 1749 transitions. [2021-12-22 11:41:03,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-12-22 11:41:03,635 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 43 states have (on average 2.7906976744186047) internal successors, (120), 45 states have internal predecessors, (120), 30 states have call successors, (39), 1 states have call predecessors, (39), 20 states have return successors, (55), 36 states have call predecessors, (55), 30 states have call successors, (55) Word has length 1318 [2021-12-22 11:41:03,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:41:03,641 INFO L225 Difference]: With dead ends: 991 [2021-12-22 11:41:03,641 INFO L226 Difference]: Without dead ends: 505 [2021-12-22 11:41:03,647 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3080 GetRequests, 3007 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1754 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=762, Invalid=4788, Unknown=0, NotChecked=0, Total=5550 [2021-12-22 11:41:03,647 INFO L933 BasicCegarLoop]: 37 mSDtfsCounter, 305 mSDsluCounter, 564 mSDsCounter, 0 mSdLazyCounter, 1657 mSolverCounterSat, 471 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 323 SdHoareTripleChecker+Valid, 601 SdHoareTripleChecker+Invalid, 2128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 471 IncrementalHoareTripleChecker+Valid, 1657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2021-12-22 11:41:03,648 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [323 Valid, 601 Invalid, 2128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [471 Valid, 1657 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2021-12-22 11:41:03,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-12-22 11:41:03,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 442. [2021-12-22 11:41:03,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 442 states, 311 states have (on average 1.0996784565916398) internal successors, (342), 302 states have internal predecessors, (342), 95 states have call successors, (95), 70 states have call predecessors, (95), 35 states have return successors, (225), 69 states have call predecessors, (225), 95 states have call successors, (225) [2021-12-22 11:41:03,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 442 states to 442 states and 662 transitions. [2021-12-22 11:41:03,679 INFO L78 Accepts]: Start accepts. Automaton has 442 states and 662 transitions. Word has length 1318 [2021-12-22 11:41:03,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:41:03,680 INFO L470 AbstractCegarLoop]: Abstraction has 442 states and 662 transitions. [2021-12-22 11:41:03,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 43 states have (on average 2.7906976744186047) internal successors, (120), 45 states have internal predecessors, (120), 30 states have call successors, (39), 1 states have call predecessors, (39), 20 states have return successors, (55), 36 states have call predecessors, (55), 30 states have call successors, (55) [2021-12-22 11:41:03,680 INFO L276 IsEmpty]: Start isEmpty. Operand 442 states and 662 transitions. [2021-12-22 11:41:03,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1033 [2021-12-22 11:41:03,689 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:41:03,690 INFO L514 BasicCegarLoop]: trace histogram [76, 76, 75, 75, 61, 61, 38, 38, 38, 38, 38, 38, 38, 37, 37, 37, 37, 37, 37, 37, 24, 23, 15, 14, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:41:03,710 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-12-22 11:41:03,899 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-12-22 11:41:03,900 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:41:03,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:41:03,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1241761113, now seen corresponding path program 7 times [2021-12-22 11:41:03,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:41:03,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342367999] [2021-12-22 11:41:03,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:41:03,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 11:41:04,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:04,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 11:41:04,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,514 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:05,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:41:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:41:05,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:05,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2021-12-22 11:41:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:05,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,667 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:41:05,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,679 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,695 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 459 [2021-12-22 11:41:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,747 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:05,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:41:05,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:41:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:05,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:05,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:05,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 745 [2021-12-22 11:41:05,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:05,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:05,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:06,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:06,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,107 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 11:41:06,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:06,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2021-12-22 11:41:06,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2021-12-22 11:41:06,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2021-12-22 11:41:06,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 11:41:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 11:41:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2021-12-22 11:41:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,203 INFO L134 CoverageAnalysis]: Checked inductivity of 31636 backedges. 2682 proven. 2990 refuted. 0 times theorem prover too weak. 25964 trivial. 0 not checked. [2021-12-22 11:41:06,203 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 11:41:06,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342367999] [2021-12-22 11:41:06,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342367999] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-22 11:41:06,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [737351675] [2021-12-22 11:41:06,204 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-12-22 11:41:06,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-22 11:41:06,205 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 11:41:06,206 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-22 11:41:06,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-12-22 11:41:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 11:41:06,579 INFO L263 TraceCheckSpWp]: Trace formula consists of 2314 conjuncts, 22 conjunts are in the unsatisfiable core [2021-12-22 11:41:06,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-22 11:41:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 31636 backedges. 547 proven. 3404 refuted. 0 times theorem prover too weak. 27685 trivial. 0 not checked. [2021-12-22 11:41:07,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-22 11:41:13,115 INFO L134 CoverageAnalysis]: Checked inductivity of 31636 backedges. 547 proven. 3460 refuted. 0 times theorem prover too weak. 27629 trivial. 0 not checked. [2021-12-22 11:41:13,116 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [737351675] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-22 11:41:13,116 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-22 11:41:13,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 15, 23] total 49 [2021-12-22 11:41:13,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110006757] [2021-12-22 11:41:13,116 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-22 11:41:13,119 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-12-22 11:41:13,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 11:41:13,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-12-22 11:41:13,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=325, Invalid=2027, Unknown=0, NotChecked=0, Total=2352 [2021-12-22 11:41:13,120 INFO L87 Difference]: Start difference. First operand 442 states and 662 transitions. Second operand has 49 states, 47 states have (on average 2.702127659574468) internal successors, (127), 49 states have internal predecessors, (127), 38 states have call successors, (44), 1 states have call predecessors, (44), 19 states have return successors, (62), 32 states have call predecessors, (62), 38 states have call successors, (62) [2021-12-22 11:41:14,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 11:41:14,801 INFO L93 Difference]: Finished difference Result 991 states and 1703 transitions. [2021-12-22 11:41:14,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-12-22 11:41:14,802 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 47 states have (on average 2.702127659574468) internal successors, (127), 49 states have internal predecessors, (127), 38 states have call successors, (44), 1 states have call predecessors, (44), 19 states have return successors, (62), 32 states have call predecessors, (62), 38 states have call successors, (62) Word has length 1032 [2021-12-22 11:41:14,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 11:41:14,809 INFO L225 Difference]: With dead ends: 991 [2021-12-22 11:41:14,809 INFO L226 Difference]: Without dead ends: 550 [2021-12-22 11:41:14,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2427 GetRequests, 2348 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2028 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=854, Invalid=5626, Unknown=0, NotChecked=0, Total=6480 [2021-12-22 11:41:14,814 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 264 mSDsluCounter, 817 mSDsCounter, 0 mSdLazyCounter, 2143 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 870 SdHoareTripleChecker+Invalid, 2701 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 2143 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2021-12-22 11:41:14,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [272 Valid, 870 Invalid, 2701 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2143 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2021-12-22 11:41:14,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 550 states. [2021-12-22 11:41:14,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 550 to 468. [2021-12-22 11:41:14,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 468 states, 327 states have (on average 1.0856269113149848) internal successors, (355), 320 states have internal predecessors, (355), 102 states have call successors, (102), 72 states have call predecessors, (102), 38 states have return successors, (194), 75 states have call predecessors, (194), 102 states have call successors, (194) [2021-12-22 11:41:14,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 468 states to 468 states and 651 transitions. [2021-12-22 11:41:14,844 INFO L78 Accepts]: Start accepts. Automaton has 468 states and 651 transitions. Word has length 1032 [2021-12-22 11:41:14,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 11:41:14,845 INFO L470 AbstractCegarLoop]: Abstraction has 468 states and 651 transitions. [2021-12-22 11:41:14,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 47 states have (on average 2.702127659574468) internal successors, (127), 49 states have internal predecessors, (127), 38 states have call successors, (44), 1 states have call predecessors, (44), 19 states have return successors, (62), 32 states have call predecessors, (62), 38 states have call successors, (62) [2021-12-22 11:41:14,845 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states and 651 transitions. [2021-12-22 11:41:14,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2885 [2021-12-22 11:41:14,892 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 11:41:14,893 INFO L514 BasicCegarLoop]: trace histogram [213, 213, 210, 210, 172, 170, 106, 106, 106, 106, 106, 106, 106, 105, 105, 105, 105, 105, 105, 105, 67, 64, 41, 40, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 11:41:14,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-12-22 11:41:15,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-22 11:41:15,120 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 11:41:15,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 11:41:15,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1257209245, now seen corresponding path program 8 times [2021-12-22 11:41:15,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 11:41:15,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363355078] [2021-12-22 11:41:15,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 11:41:15,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms