./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/AllInterval-007.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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/xcsp/AllInterval-007.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 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 15:27:27,766 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 15:27:27,772 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 15:27:27,809 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 15:27:27,810 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 15:27:27,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 15:27:27,811 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 15:27:27,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 15:27:27,814 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 15:27:27,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 15:27:27,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 15:27:27,816 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 15:27:27,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 15:27:27,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 15:27:27,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 15:27:27,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 15:27:27,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 15:27:27,820 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 15:27:27,821 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 15:27:27,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 15:27:27,823 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 15:27:27,824 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 15:27:27,825 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 15:27:27,826 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 15:27:27,827 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 15:27:27,828 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 15:27:27,828 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 15:27:27,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 15:27:27,839 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 15:27:27,840 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 15:27:27,840 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 15:27:27,841 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 15:27:27,842 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 15:27:27,843 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 15:27:27,844 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 15:27:27,845 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 15:27:27,846 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 15:27:27,846 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 15:27:27,846 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 15:27:27,847 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 15:27:27,848 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 15:27:27,848 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-14 15:27:27,867 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 15:27:27,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 15:27:27,870 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 15:27:27,870 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 15:27:27,871 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 15:27:27,871 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 15:27:27,871 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 15:27:27,872 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 15:27:27,872 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 15:27:27,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 15:27:27,873 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-14 15:27:27,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 15:27:27,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-14 15:27:27,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 15:27:27,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 15:27:27,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 15:27:27,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 15:27:27,874 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-14 15:27:27,874 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 15:27:27,874 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 15:27:27,874 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 15:27:27,874 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 15:27:27,874 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 15:27:27,875 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 15:27:27,875 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:27:27,875 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 15:27:27,875 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 15:27:27,875 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 15:27:27,875 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 15:27:27,876 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 15:27:27,876 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 15:27:27,876 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 15:27:27,876 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 15:27:27,876 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 15:27:27,876 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 79ad480fc17f59cc4e46ec2dbc023b5da3460c72b3c8ca1cc6dbc35a93f8cf64 [2021-12-14 15:27:28,078 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 15:27:28,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 15:27:28,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 15:27:28,109 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 15:27:28,111 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 15:27:28,112 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/AllInterval-007.c [2021-12-14 15:27:28,167 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b1c2f54/991dc6770c62456082bccbc0f9b4c1a1/FLAG7824ceec7 [2021-12-14 15:27:28,489 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 15:27:28,490 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/AllInterval-007.c [2021-12-14 15:27:28,500 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b1c2f54/991dc6770c62456082bccbc0f9b4c1a1/FLAG7824ceec7 [2021-12-14 15:27:28,909 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2b1c2f54/991dc6770c62456082bccbc0f9b4c1a1 [2021-12-14 15:27:28,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 15:27:28,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 15:27:28,913 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 15:27:28,913 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 15:27:28,915 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 15:27:28,916 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:27:28" (1/1) ... [2021-12-14 15:27:28,917 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4d70ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:28, skipping insertion in model container [2021-12-14 15:27:28,917 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:27:28" (1/1) ... [2021-12-14 15:27:28,921 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 15:27:28,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 15:27:29,046 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/xcsp/AllInterval-007.c[3690,3703] [2021-12-14 15:27:29,051 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:27:29,056 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 15:27:29,073 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/xcsp/AllInterval-007.c[3690,3703] [2021-12-14 15:27:29,075 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 15:27:29,084 INFO L208 MainTranslator]: Completed translation [2021-12-14 15:27:29,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29 WrapperNode [2021-12-14 15:27:29,084 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 15:27:29,085 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 15:27:29,085 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 15:27:29,085 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 15:27:29,090 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,096 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,117 INFO L137 Inliner]: procedures = 13, calls = 75, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 174 [2021-12-14 15:27:29,117 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 15:27:29,123 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 15:27:29,123 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 15:27:29,123 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 15:27:29,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,139 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,142 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 15:27:29,143 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 15:27:29,143 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 15:27:29,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 15:27:29,147 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (1/1) ... [2021-12-14 15:27:29,165 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 15:27:29,182 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:27:29,194 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) [2021-12-14 15:27:29,213 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 [2021-12-14 15:27:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 15:27:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 15:27:29,224 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 15:27:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 15:27:29,224 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2021-12-14 15:27:29,225 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2021-12-14 15:27:29,277 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 15:27:29,278 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 15:27:29,468 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 15:27:29,473 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 15:27:29,473 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 15:27:29,475 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:27:29 BoogieIcfgContainer [2021-12-14 15:27:29,475 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 15:27:29,476 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 15:27:29,476 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 15:27:29,479 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 15:27:29,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:27:28" (1/3) ... [2021-12-14 15:27:29,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207a146f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:27:29, skipping insertion in model container [2021-12-14 15:27:29,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:27:29" (2/3) ... [2021-12-14 15:27:29,480 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@207a146f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:27:29, skipping insertion in model container [2021-12-14 15:27:29,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:27:29" (3/3) ... [2021-12-14 15:27:29,481 INFO L111 eAbstractionObserver]: Analyzing ICFG AllInterval-007.c [2021-12-14 15:27:29,484 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 15:27:29,485 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 15:27:29,515 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 15:27:29,520 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 [2021-12-14 15:27:29,521 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 15:27:29,534 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2021-12-14 15:27:29,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-12-14 15:27:29,548 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:27:29,549 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:27:29,549 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:27:29,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:27:29,553 INFO L85 PathProgramCache]: Analyzing trace with hash -128819059, now seen corresponding path program 1 times [2021-12-14 15:27:29,559 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:27:29,559 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886670127] [2021-12-14 15:27:29,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:27:29,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:27:29,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 15:27:29,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 15:27:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 15:27:29,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 15:27:29,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 15:27:29,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 15:27:29,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 15:27:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 15:27:29,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 15:27:29,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 15:27:29,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 15:27:29,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 15:27:29,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 15:27:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 15:27:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 15:27:29,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 15:27:29,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 15:27:29,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 15:27:29,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 15:27:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 15:27:29,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 15:27:29,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 15:27:29,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 15:27:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 15:27:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 15:27:29,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 15:27:29,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 15:27:29,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 15:27:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 15:27:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 15:27:29,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 15:27:29,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 15:27:29,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 15:27:29,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 15:27:29,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 15:27:29,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 15:27:29,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 15:27:29,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 15:27:29,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 15:27:29,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:29,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 15:27:29,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-14 15:27:30,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 15:27:30,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 15:27:30,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-14 15:27:30,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 15:27:30,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-14 15:27:30,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 15:27:30,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-14 15:27:30,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 15:27:30,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-14 15:27:30,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-14 15:27:30,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-14 15:27:30,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 15:27:30,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 15:27:30,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 15:27:30,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-14 15:27:30,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 15:27:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-14 15:27:30,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-14 15:27:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 15:27:30,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-14 15:27:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-14 15:27:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-14 15:27:30,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-14 15:27:30,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-14 15:27:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-14 15:27:30,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-12-14 15:27:30,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-14 15:27:30,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:30,210 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9112 trivial. 0 not checked. [2021-12-14 15:27:30,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:27:30,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886670127] [2021-12-14 15:27:30,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886670127] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 15:27:30,212 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 15:27:30,212 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-14 15:27:30,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [701928578] [2021-12-14 15:27:30,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 15:27:30,219 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-12-14 15:27:30,219 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:27:30,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-14 15:27:30,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 15:27:30,245 INFO L87 Difference]: Start difference. First operand has 110 states, 39 states have (on average 1.205128205128205) internal successors, (47), 40 states have internal predecessors, (47), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-14 15:27:30,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:27:30,301 INFO L93 Difference]: Finished difference Result 214 states and 428 transitions. [2021-12-14 15:27:30,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-14 15:27:30,304 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) Word has length 374 [2021-12-14 15:27:30,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:27:30,311 INFO L225 Difference]: With dead ends: 214 [2021-12-14 15:27:30,311 INFO L226 Difference]: Without dead ends: 107 [2021-12-14 15:27:30,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-14 15:27:30,321 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-14 15:27:30,322 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-14 15:27:30,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2021-12-14 15:27:30,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2021-12-14 15:27:30,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 68 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2021-12-14 15:27:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 179 transitions. [2021-12-14 15:27:30,378 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 179 transitions. Word has length 374 [2021-12-14 15:27:30,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:27:30,379 INFO L470 AbstractCegarLoop]: Abstraction has 107 states and 179 transitions. [2021-12-14 15:27:30,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (68), 1 states have call predecessors, (68), 1 states have return successors, (68), 1 states have call predecessors, (68), 2 states have call successors, (68) [2021-12-14 15:27:30,380 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 179 transitions. [2021-12-14 15:27:30,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-12-14 15:27:30,393 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:27:30,394 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:27:30,394 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 15:27:30,395 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:27:30,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:27:30,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1137197631, now seen corresponding path program 1 times [2021-12-14 15:27:30,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:27:30,396 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934036493] [2021-12-14 15:27:30,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:27:30,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:27:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 15:27:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 15:27:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 15:27:33,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 15:27:33,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 15:27:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 15:27:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 15:27:33,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:33,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 15:27:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 15:27:34,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 15:27:34,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 15:27:34,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 15:27:34,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 15:27:34,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 15:27:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 15:27:34,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 15:27:34,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 15:27:34,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 15:27:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 15:27:34,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 15:27:34,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 15:27:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 15:27:34,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 15:27:34,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 15:27:34,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,088 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 15:27:34,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 15:27:34,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 15:27:34,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 15:27:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 15:27:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 15:27:34,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 15:27:34,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 15:27:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 15:27:34,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 15:27:34,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 15:27:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 15:27:34,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 15:27:34,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 15:27:34,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 15:27:34,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 15:27:34,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-14 15:27:34,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 15:27:34,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 15:27:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-14 15:27:34,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 15:27:34,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-14 15:27:34,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 15:27:34,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-14 15:27:34,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 15:27:34,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-14 15:27:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-14 15:27:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-14 15:27:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 15:27:34,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 15:27:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 15:27:34,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-14 15:27:34,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 15:27:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-14 15:27:34,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-14 15:27:34,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 15:27:34,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-14 15:27:34,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-14 15:27:34,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-14 15:27:34,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-14 15:27:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-14 15:27:34,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-14 15:27:34,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-12-14 15:27:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-14 15:27:34,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,446 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1317 proven. 828 refuted. 0 times theorem prover too weak. 6967 trivial. 0 not checked. [2021-12-14 15:27:34,446 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:27:34,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934036493] [2021-12-14 15:27:34,447 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934036493] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 15:27:34,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411642104] [2021-12-14 15:27:34,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:27:34,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 15:27:34,448 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:27:34,449 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) [2021-12-14 15:27:34,498 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-14 15:27:34,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:27:34,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 104 conjunts are in the unsatisfiable core [2021-12-14 15:27:34,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 15:27:38,073 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1822 proven. 786 refuted. 0 times theorem prover too weak. 6504 trivial. 0 not checked. [2021-12-14 15:27:38,073 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 15:27:41,860 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1305 proven. 840 refuted. 0 times theorem prover too weak. 6967 trivial. 0 not checked. [2021-12-14 15:27:41,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411642104] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 15:27:41,863 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 15:27:41,863 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 31, 33] total 90 [2021-12-14 15:27:41,864 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395394709] [2021-12-14 15:27:41,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 15:27:41,870 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2021-12-14 15:27:41,871 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:27:41,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2021-12-14 15:27:41,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=576, Invalid=7434, Unknown=0, NotChecked=0, Total=8010 [2021-12-14 15:27:41,874 INFO L87 Difference]: Start difference. First operand 107 states and 179 transitions. Second operand has 90 states, 63 states have (on average 1.5238095238095237) internal successors, (96), 60 states have internal predecessors, (96), 48 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (187), 45 states have call predecessors, (187), 48 states have call successors, (187) [2021-12-14 15:28:02,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 15:28:02,489 INFO L93 Difference]: Finished difference Result 215 states and 316 transitions. [2021-12-14 15:28:02,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-12-14 15:28:02,490 INFO L78 Accepts]: Start accepts. Automaton has has 90 states, 63 states have (on average 1.5238095238095237) internal successors, (96), 60 states have internal predecessors, (96), 48 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (187), 45 states have call predecessors, (187), 48 states have call successors, (187) Word has length 374 [2021-12-14 15:28:02,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 15:28:02,493 INFO L225 Difference]: With dead ends: 215 [2021-12-14 15:28:02,493 INFO L226 Difference]: Without dead ends: 203 [2021-12-14 15:28:02,499 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 990 GetRequests, 840 SyntacticMatches, 1 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4268 ImplicationChecksByTransitivity, 21.3s TimeCoverageRelationStatistics Valid=4308, Invalid=18342, Unknown=0, NotChecked=0, Total=22650 [2021-12-14 15:28:02,500 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 788 mSDsluCounter, 4242 mSDsCounter, 0 mSdLazyCounter, 5257 mSolverCounterSat, 905 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 795 SdHoareTripleChecker+Valid, 4348 SdHoareTripleChecker+Invalid, 6162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 905 IncrementalHoareTripleChecker+Valid, 5257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-14 15:28:02,501 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [795 Valid, 4348 Invalid, 6162 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [905 Valid, 5257 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2021-12-14 15:28:02,503 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2021-12-14 15:28:02,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 123. [2021-12-14 15:28:02,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 123 states, 49 states have (on average 1.183673469387755) internal successors, (58), 49 states have internal predecessors, (58), 72 states have call successors, (72), 1 states have call predecessors, (72), 1 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2021-12-14 15:28:02,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 123 states to 123 states and 202 transitions. [2021-12-14 15:28:02,533 INFO L78 Accepts]: Start accepts. Automaton has 123 states and 202 transitions. Word has length 374 [2021-12-14 15:28:02,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 15:28:02,536 INFO L470 AbstractCegarLoop]: Abstraction has 123 states and 202 transitions. [2021-12-14 15:28:02,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 63 states have (on average 1.5238095238095237) internal successors, (96), 60 states have internal predecessors, (96), 48 states have call successors, (186), 2 states have call predecessors, (186), 3 states have return successors, (187), 45 states have call predecessors, (187), 48 states have call successors, (187) [2021-12-14 15:28:02,537 INFO L276 IsEmpty]: Start isEmpty. Operand 123 states and 202 transitions. [2021-12-14 15:28:02,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-12-14 15:28:02,540 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 15:28:02,540 INFO L514 BasicCegarLoop]: trace histogram [68, 68, 68, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 15:28:02,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-14 15:28:02,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 15:28:02,752 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 15:28:02,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 15:28:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2136701311, now seen corresponding path program 1 times [2021-12-14 15:28:02,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 15:28:02,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967270131] [2021-12-14 15:28:02,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:28:02,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 15:28:02,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 15:28:18,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 15:28:18,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2021-12-14 15:28:18,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,648 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2021-12-14 15:28:18,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2021-12-14 15:28:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-14 15:28:18,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2021-12-14 15:28:18,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2021-12-14 15:28:18,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-14 15:28:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2021-12-14 15:28:18,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 15:28:18,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 15:28:18,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 15:28:18,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-14 15:28:18,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-12-14 15:28:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2021-12-14 15:28:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-14 15:28:18,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-12-14 15:28:18,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2021-12-14 15:28:18,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2021-12-14 15:28:18,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2021-12-14 15:28:18,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2021-12-14 15:28:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2021-12-14 15:28:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-14 15:28:18,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2021-12-14 15:28:18,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-14 15:28:18,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2021-12-14 15:28:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-14 15:28:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 15:28:18,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-14 15:28:18,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 15:28:18,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-12-14 15:28:18,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-14 15:28:18,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-14 15:28:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-14 15:28:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 15:28:18,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-12-14 15:28:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:18,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-14 15:28:18,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-14 15:28:19,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-14 15:28:19,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-14 15:28:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-14 15:28:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-14 15:28:19,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-14 15:28:19,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-14 15:28:19,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-14 15:28:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 15:28:19,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-14 15:28:19,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2021-12-14 15:28:19,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2021-12-14 15:28:19,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2021-12-14 15:28:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2021-12-14 15:28:19,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 275 [2021-12-14 15:28:19,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2021-12-14 15:28:19,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 285 [2021-12-14 15:28:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 290 [2021-12-14 15:28:19,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2021-12-14 15:28:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2021-12-14 15:28:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2021-12-14 15:28:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2021-12-14 15:28:19,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 315 [2021-12-14 15:28:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 320 [2021-12-14 15:28:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-14 15:28:19,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2021-12-14 15:28:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2021-12-14 15:28:19,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2021-12-14 15:28:19,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2021-12-14 15:28:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 368 [2021-12-14 15:28:19,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,610 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 2232 proven. 936 refuted. 0 times theorem prover too weak. 5944 trivial. 0 not checked. [2021-12-14 15:28:19,610 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 15:28:19,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967270131] [2021-12-14 15:28:19,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1967270131] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-14 15:28:19,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [484000034] [2021-12-14 15:28:19,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 15:28:19,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-14 15:28:19,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 15:28:19,614 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) [2021-12-14 15:28:19,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-14 15:28:19,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 15:28:19,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 734 conjuncts, 91 conjunts are in the unsatisfiable core [2021-12-14 15:28:19,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-14 15:28:23,892 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1917 proven. 906 refuted. 0 times theorem prover too weak. 6289 trivial. 0 not checked. [2021-12-14 15:28:23,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-14 15:28:28,891 INFO L134 CoverageAnalysis]: Checked inductivity of 9112 backedges. 1413 proven. 855 refuted. 0 times theorem prover too weak. 6844 trivial. 0 not checked. [2021-12-14 15:28:28,892 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [484000034] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-14 15:28:28,892 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-14 15:28:28,892 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 27, 30] total 100 [2021-12-14 15:28:28,892 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884351948] [2021-12-14 15:28:28,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-14 15:28:28,893 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 100 states [2021-12-14 15:28:28,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 15:28:28,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 100 interpolants. [2021-12-14 15:28:28,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=512, Invalid=9388, Unknown=0, NotChecked=0, Total=9900 [2021-12-14 15:28:28,896 INFO L87 Difference]: Start difference. First operand 123 states and 202 transitions. Second operand has 100 states, 68 states have (on average 1.4264705882352942) internal successors, (97), 64 states have internal predecessors, (97), 62 states have call successors, (193), 2 states have call predecessors, (193), 3 states have return successors, (194), 56 states have call predecessors, (194), 62 states have call successors, (194)