./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3a877d22 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/openssl-simplified/s3_srvr_6.cil-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 d0f2e33ac87f1f1d9db23cfd04cd47631e40f0ab807306c8f57e0f0ac0650234 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 08:57:19,042 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 08:57:19,049 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 08:57:19,080 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 08:57:19,091 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 08:57:19,092 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 08:57:19,094 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 08:57:19,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 08:57:19,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 08:57:19,102 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 08:57:19,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 08:57:19,103 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 08:57:19,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 08:57:19,107 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 08:57:19,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 08:57:19,111 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 08:57:19,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 08:57:19,114 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 08:57:19,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 08:57:19,121 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 08:57:19,122 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 08:57:19,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 08:57:19,128 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 08:57:19,129 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 08:57:19,131 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 08:57:19,133 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 08:57:19,133 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 08:57:19,134 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 08:57:19,135 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 08:57:19,136 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 08:57:19,137 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 08:57:19,137 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 08:57:19,138 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 08:57:19,139 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 08:57:19,140 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 08:57:19,141 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 08:57:19,142 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 08:57:19,142 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 08:57:19,142 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 08:57:19,143 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 08:57:19,144 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 08:57:19,145 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 08:57:19,175 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 08:57:19,182 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 08:57:19,183 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 08:57:19,183 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 08:57:19,184 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 08:57:19,184 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 08:57:19,185 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 08:57:19,185 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 08:57:19,185 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 08:57:19,186 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 08:57:19,187 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 08:57:19,187 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 08:57:19,187 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 08:57:19,187 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 08:57:19,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 08:57:19,188 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 08:57:19,188 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 08:57:19,188 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 08:57:19,188 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 08:57:19,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 08:57:19,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 08:57:19,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 08:57:19,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 08:57:19,189 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 08:57:19,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:57:19,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 08:57:19,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 08:57:19,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 08:57:19,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 08:57:19,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 08:57:19,192 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 08:57:19,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 08:57:19,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 08:57:19,193 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 08:57:19,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0f2e33ac87f1f1d9db23cfd04cd47631e40f0ab807306c8f57e0f0ac0650234 [2021-12-15 08:57:19,413 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 08:57:19,440 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 08:57:19,443 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 08:57:19,444 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 08:57:19,444 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 08:57:19,445 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-12-15 08:57:19,501 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7afa0498/425706414d8a43b39afde30abfb16efe/FLAG75734e4c9 [2021-12-15 08:57:19,907 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 08:57:19,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_6.cil-2.c [2021-12-15 08:57:19,917 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7afa0498/425706414d8a43b39afde30abfb16efe/FLAG75734e4c9 [2021-12-15 08:57:20,342 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7afa0498/425706414d8a43b39afde30abfb16efe [2021-12-15 08:57:20,344 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 08:57:20,345 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 08:57:20,347 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 08:57:20,347 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 08:57:20,350 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 08:57:20,351 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,352 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b55a737 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20, skipping insertion in model container [2021-12-15 08:57:20,352 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,358 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 08:57:20,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 08:57:20,596 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/openssl-simplified/s3_srvr_6.cil-2.c[48455,48468] [2021-12-15 08:57:20,618 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:57:20,624 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 08:57:20,667 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/openssl-simplified/s3_srvr_6.cil-2.c[48455,48468] [2021-12-15 08:57:20,669 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 08:57:20,680 INFO L208 MainTranslator]: Completed translation [2021-12-15 08:57:20,680 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20 WrapperNode [2021-12-15 08:57:20,681 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 08:57:20,682 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 08:57:20,682 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 08:57:20,682 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 08:57:20,695 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,732 INFO L137 Inliner]: procedures = 15, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 580 [2021-12-15 08:57:20,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 08:57:20,733 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 08:57:20,733 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 08:57:20,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 08:57:20,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,758 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,781 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,786 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 08:57:20,787 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 08:57:20,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 08:57:20,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 08:57:20,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (1/1) ... [2021-12-15 08:57:20,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 08:57:20,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:20,831 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) [2021-12-15 08:57:20,833 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 [2021-12-15 08:57:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 08:57:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 08:57:20,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 08:57:20,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 08:57:20,932 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 08:57:20,934 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 08:57:20,948 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 08:57:21,372 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-12-15 08:57:21,372 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-12-15 08:57:21,373 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 08:57:21,379 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 08:57:21,380 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 08:57:21,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:21 BoogieIcfgContainer [2021-12-15 08:57:21,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 08:57:21,383 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 08:57:21,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 08:57:21,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 08:57:21,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 08:57:20" (1/3) ... [2021-12-15 08:57:21,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7946a605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:57:21, skipping insertion in model container [2021-12-15 08:57:21,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 08:57:20" (2/3) ... [2021-12-15 08:57:21,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7946a605 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 08:57:21, skipping insertion in model container [2021-12-15 08:57:21,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:21" (3/3) ... [2021-12-15 08:57:21,390 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_6.cil-2.c [2021-12-15 08:57:21,394 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 08:57:21,395 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 08:57:21,435 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 08:57:21,441 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 [2021-12-15 08:57:21,441 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 08:57:21,456 INFO L276 IsEmpty]: Start isEmpty. Operand has 158 states, 156 states have (on average 1.7564102564102564) internal successors, (274), 157 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:21,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-12-15 08:57:21,464 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:21,465 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:21,465 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:21,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:21,470 INFO L85 PathProgramCache]: Analyzing trace with hash -443745208, now seen corresponding path program 1 times [2021-12-15 08:57:21,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:21,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920401740] [2021-12-15 08:57:21,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:21,479 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:21,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:21,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:57:21,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:21,700 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920401740] [2021-12-15 08:57:21,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920401740] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:21,700 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:21,701 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:21,702 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055231523] [2021-12-15 08:57:21,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:21,707 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:21,707 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:21,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:21,732 INFO L87 Difference]: Start difference. First operand has 158 states, 156 states have (on average 1.7564102564102564) internal successors, (274), 157 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:21,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:21,945 INFO L93 Difference]: Finished difference Result 336 states and 582 transitions. [2021-12-15 08:57:21,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:21,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2021-12-15 08:57:21,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:21,959 INFO L225 Difference]: With dead ends: 336 [2021-12-15 08:57:21,960 INFO L226 Difference]: Without dead ends: 166 [2021-12-15 08:57:21,962 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:21,965 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 31 mSDsluCounter, 162 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:21,965 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 434 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 08:57:21,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2021-12-15 08:57:21,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 163. [2021-12-15 08:57:21,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 162 states have (on average 1.5617283950617284) internal successors, (253), 162 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 253 transitions. [2021-12-15 08:57:22,002 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 253 transitions. Word has length 44 [2021-12-15 08:57:22,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:22,002 INFO L470 AbstractCegarLoop]: Abstraction has 163 states and 253 transitions. [2021-12-15 08:57:22,003 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,003 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 253 transitions. [2021-12-15 08:57:22,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-15 08:57:22,005 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:22,006 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:22,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 08:57:22,006 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:22,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:22,007 INFO L85 PathProgramCache]: Analyzing trace with hash -1030632600, now seen corresponding path program 1 times [2021-12-15 08:57:22,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:22,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633753753] [2021-12-15 08:57:22,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:22,007 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:22,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:22,093 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 08:57:22,094 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:22,094 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633753753] [2021-12-15 08:57:22,094 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633753753] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:22,095 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:22,095 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:22,095 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100658857] [2021-12-15 08:57:22,095 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:22,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:22,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:22,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:22,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,098 INFO L87 Difference]: Start difference. First operand 163 states and 253 transitions. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:22,228 INFO L93 Difference]: Finished difference Result 343 states and 538 transitions. [2021-12-15 08:57:22,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:22,228 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 60 [2021-12-15 08:57:22,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:22,236 INFO L225 Difference]: With dead ends: 343 [2021-12-15 08:57:22,237 INFO L226 Difference]: Without dead ends: 188 [2021-12-15 08:57:22,243 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,246 INFO L933 BasicCegarLoop]: 225 mSDtfsCounter, 14 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:22,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14 Valid, 360 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:22,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2021-12-15 08:57:22,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 184. [2021-12-15 08:57:22,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 1.5245901639344261) internal successors, (279), 183 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 279 transitions. [2021-12-15 08:57:22,263 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 279 transitions. Word has length 60 [2021-12-15 08:57:22,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:22,264 INFO L470 AbstractCegarLoop]: Abstraction has 184 states and 279 transitions. [2021-12-15 08:57:22,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,264 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 279 transitions. [2021-12-15 08:57:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-15 08:57:22,266 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:22,267 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:22,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 08:57:22,267 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:22,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:22,268 INFO L85 PathProgramCache]: Analyzing trace with hash 18153750, now seen corresponding path program 1 times [2021-12-15 08:57:22,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:22,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060646608] [2021-12-15 08:57:22,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:22,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:22,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:22,328 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:22,329 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:22,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060646608] [2021-12-15 08:57:22,329 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060646608] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:22,329 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:22,329 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:22,330 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047912904] [2021-12-15 08:57:22,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:22,330 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:22,330 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:22,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:22,331 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,331 INFO L87 Difference]: Start difference. First operand 184 states and 279 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:22,483 INFO L93 Difference]: Finished difference Result 415 states and 642 transitions. [2021-12-15 08:57:22,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:22,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-15 08:57:22,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:22,486 INFO L225 Difference]: With dead ends: 415 [2021-12-15 08:57:22,486 INFO L226 Difference]: Without dead ends: 239 [2021-12-15 08:57:22,486 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,487 INFO L933 BasicCegarLoop]: 211 mSDtfsCounter, 54 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 325 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:22,488 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [54 Valid, 325 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:22,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 239 states. [2021-12-15 08:57:22,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 239 to 225. [2021-12-15 08:57:22,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 224 states have (on average 1.4642857142857142) internal successors, (328), 224 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 328 transitions. [2021-12-15 08:57:22,498 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 328 transitions. Word has length 81 [2021-12-15 08:57:22,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:22,499 INFO L470 AbstractCegarLoop]: Abstraction has 225 states and 328 transitions. [2021-12-15 08:57:22,499 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,499 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 328 transitions. [2021-12-15 08:57:22,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2021-12-15 08:57:22,502 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:22,502 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:22,502 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 08:57:22,502 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:22,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:22,503 INFO L85 PathProgramCache]: Analyzing trace with hash 266300244, now seen corresponding path program 1 times [2021-12-15 08:57:22,503 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:22,503 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820060736] [2021-12-15 08:57:22,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:22,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:22,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:22,570 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:22,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:22,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820060736] [2021-12-15 08:57:22,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1820060736] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:22,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:22,572 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:22,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625688915] [2021-12-15 08:57:22,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:22,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:22,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:22,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:22,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,574 INFO L87 Difference]: Start difference. First operand 225 states and 328 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:22,683 INFO L93 Difference]: Finished difference Result 470 states and 693 transitions. [2021-12-15 08:57:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:22,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 81 [2021-12-15 08:57:22,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:22,688 INFO L225 Difference]: With dead ends: 470 [2021-12-15 08:57:22,688 INFO L226 Difference]: Without dead ends: 253 [2021-12-15 08:57:22,688 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,694 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 16 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:22,696 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [16 Valid, 376 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:22,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253 states. [2021-12-15 08:57:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253 to 248. [2021-12-15 08:57:22,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248 states, 247 states have (on average 1.4412955465587045) internal successors, (356), 247 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248 states to 248 states and 356 transitions. [2021-12-15 08:57:22,723 INFO L78 Accepts]: Start accepts. Automaton has 248 states and 356 transitions. Word has length 81 [2021-12-15 08:57:22,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:22,723 INFO L470 AbstractCegarLoop]: Abstraction has 248 states and 356 transitions. [2021-12-15 08:57:22,724 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,724 INFO L276 IsEmpty]: Start isEmpty. Operand 248 states and 356 transitions. [2021-12-15 08:57:22,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-12-15 08:57:22,726 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:22,727 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:22,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 08:57:22,727 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:22,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:22,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1493528062, now seen corresponding path program 1 times [2021-12-15 08:57:22,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:22,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975647853] [2021-12-15 08:57:22,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:22,729 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:22,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:22,776 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 08:57:22,776 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:22,776 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975647853] [2021-12-15 08:57:22,776 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975647853] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:22,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:22,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:22,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960776645] [2021-12-15 08:57:22,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:22,778 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:22,778 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:22,778 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:22,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,779 INFO L87 Difference]: Start difference. First operand 248 states and 356 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:22,921 INFO L93 Difference]: Finished difference Result 587 states and 852 transitions. [2021-12-15 08:57:22,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:22,921 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-12-15 08:57:22,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:22,923 INFO L225 Difference]: With dead ends: 587 [2021-12-15 08:57:22,923 INFO L226 Difference]: Without dead ends: 344 [2021-12-15 08:57:22,924 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,925 INFO L933 BasicCegarLoop]: 165 mSDtfsCounter, 182 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 182 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:22,925 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [182 Valid, 208 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:22,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2021-12-15 08:57:22,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 336. [2021-12-15 08:57:22,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 336 states, 335 states have (on average 1.4417910447761193) internal successors, (483), 335 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 336 states to 336 states and 483 transitions. [2021-12-15 08:57:22,938 INFO L78 Accepts]: Start accepts. Automaton has 336 states and 483 transitions. Word has length 94 [2021-12-15 08:57:22,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:22,938 INFO L470 AbstractCegarLoop]: Abstraction has 336 states and 483 transitions. [2021-12-15 08:57:22,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:22,939 INFO L276 IsEmpty]: Start isEmpty. Operand 336 states and 483 transitions. [2021-12-15 08:57:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2021-12-15 08:57:22,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:22,940 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:22,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 08:57:22,941 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:22,941 INFO L85 PathProgramCache]: Analyzing trace with hash -377706052, now seen corresponding path program 1 times [2021-12-15 08:57:22,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:22,942 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828916380] [2021-12-15 08:57:22,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:22,942 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:22,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:22,991 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 45 proven. 0 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-12-15 08:57:22,992 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:22,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828916380] [2021-12-15 08:57:22,992 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828916380] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:22,992 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:22,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:22,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031543875] [2021-12-15 08:57:22,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:22,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:22,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:22,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:22,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:22,994 INFO L87 Difference]: Start difference. First operand 336 states and 483 transitions. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,087 INFO L93 Difference]: Finished difference Result 703 states and 1020 transitions. [2021-12-15 08:57:23,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,087 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 102 [2021-12-15 08:57:23,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,089 INFO L225 Difference]: With dead ends: 703 [2021-12-15 08:57:23,090 INFO L226 Difference]: Without dead ends: 375 [2021-12-15 08:57:23,090 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,091 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 32 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 126 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [32 Valid, 375 Invalid, 126 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:23,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states. [2021-12-15 08:57:23,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 361. [2021-12-15 08:57:23,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.425) internal successors, (513), 360 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 513 transitions. [2021-12-15 08:57:23,109 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 513 transitions. Word has length 102 [2021-12-15 08:57:23,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,109 INFO L470 AbstractCegarLoop]: Abstraction has 361 states and 513 transitions. [2021-12-15 08:57:23,109 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,109 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 513 transitions. [2021-12-15 08:57:23,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-15 08:57:23,111 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,111 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 08:57:23,111 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,112 INFO L85 PathProgramCache]: Analyzing trace with hash 903169840, now seen corresponding path program 1 times [2021-12-15 08:57:23,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,113 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734929353] [2021-12-15 08:57:23,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,113 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,159 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-15 08:57:23,160 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734929353] [2021-12-15 08:57:23,160 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1734929353] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,160 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,160 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,161 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601425027] [2021-12-15 08:57:23,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,161 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,161 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,162 INFO L87 Difference]: Start difference. First operand 361 states and 513 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,180 INFO L93 Difference]: Finished difference Result 1060 states and 1502 transitions. [2021-12-15 08:57:23,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,180 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-12-15 08:57:23,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,183 INFO L225 Difference]: With dead ends: 1060 [2021-12-15 08:57:23,183 INFO L226 Difference]: Without dead ends: 707 [2021-12-15 08:57:23,184 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,185 INFO L933 BasicCegarLoop]: 428 mSDtfsCounter, 202 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 202 SdHoareTripleChecker+Valid, 653 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,185 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [202 Valid, 653 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:23,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 707 states. [2021-12-15 08:57:23,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 707 to 362. [2021-12-15 08:57:23,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 361 states have (on average 1.4238227146814404) internal successors, (514), 361 states have internal predecessors, (514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 514 transitions. [2021-12-15 08:57:23,196 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 514 transitions. Word has length 128 [2021-12-15 08:57:23,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,196 INFO L470 AbstractCegarLoop]: Abstraction has 362 states and 514 transitions. [2021-12-15 08:57:23,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,197 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 514 transitions. [2021-12-15 08:57:23,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2021-12-15 08:57:23,198 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,198 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 08:57:23,199 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1796656178, now seen corresponding path program 1 times [2021-12-15 08:57:23,200 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,200 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246910284] [2021-12-15 08:57:23,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,237 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2021-12-15 08:57:23,238 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246910284] [2021-12-15 08:57:23,238 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246910284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,238 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,238 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,239 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067013195] [2021-12-15 08:57:23,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,239 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,239 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,240 INFO L87 Difference]: Start difference. First operand 362 states and 514 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,336 INFO L93 Difference]: Finished difference Result 752 states and 1078 transitions. [2021-12-15 08:57:23,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,337 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 128 [2021-12-15 08:57:23,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,339 INFO L225 Difference]: With dead ends: 752 [2021-12-15 08:57:23,339 INFO L226 Difference]: Without dead ends: 398 [2021-12-15 08:57:23,340 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,340 INFO L933 BasicCegarLoop]: 240 mSDtfsCounter, 21 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,341 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [21 Valid, 375 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 398 states. [2021-12-15 08:57:23,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 398 to 389. [2021-12-15 08:57:23,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 389 states, 388 states have (on average 1.407216494845361) internal successors, (546), 388 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 389 states to 389 states and 546 transitions. [2021-12-15 08:57:23,350 INFO L78 Accepts]: Start accepts. Automaton has 389 states and 546 transitions. Word has length 128 [2021-12-15 08:57:23,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,351 INFO L470 AbstractCegarLoop]: Abstraction has 389 states and 546 transitions. [2021-12-15 08:57:23,351 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,351 INFO L276 IsEmpty]: Start isEmpty. Operand 389 states and 546 transitions. [2021-12-15 08:57:23,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-15 08:57:23,353 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,353 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 08:57:23,353 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,354 INFO L85 PathProgramCache]: Analyzing trace with hash -112871130, now seen corresponding path program 1 times [2021-12-15 08:57:23,354 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,354 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795741272] [2021-12-15 08:57:23,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,403 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 100 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-12-15 08:57:23,403 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795741272] [2021-12-15 08:57:23,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795741272] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,404 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,404 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,404 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34502176] [2021-12-15 08:57:23,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,406 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,407 INFO L87 Difference]: Start difference. First operand 389 states and 546 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,484 INFO L93 Difference]: Finished difference Result 1148 states and 1612 transitions. [2021-12-15 08:57:23,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-12-15 08:57:23,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,489 INFO L225 Difference]: With dead ends: 1148 [2021-12-15 08:57:23,489 INFO L226 Difference]: Without dead ends: 767 [2021-12-15 08:57:23,490 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,492 INFO L933 BasicCegarLoop]: 328 mSDtfsCounter, 153 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,493 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [153 Valid, 513 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:23,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states. [2021-12-15 08:57:23,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 767. [2021-12-15 08:57:23,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 767 states, 766 states have (on average 1.3785900783289817) internal successors, (1056), 766 states have internal predecessors, (1056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 767 states to 767 states and 1056 transitions. [2021-12-15 08:57:23,510 INFO L78 Accepts]: Start accepts. Automaton has 767 states and 1056 transitions. Word has length 134 [2021-12-15 08:57:23,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,510 INFO L470 AbstractCegarLoop]: Abstraction has 767 states and 1056 transitions. [2021-12-15 08:57:23,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,510 INFO L276 IsEmpty]: Start isEmpty. Operand 767 states and 1056 transitions. [2021-12-15 08:57:23,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-15 08:57:23,512 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,513 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 08:57:23,514 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,515 INFO L85 PathProgramCache]: Analyzing trace with hash 1488199976, now seen corresponding path program 1 times [2021-12-15 08:57:23,515 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591713680] [2021-12-15 08:57:23,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,561 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2021-12-15 08:57:23,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591713680] [2021-12-15 08:57:23,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591713680] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364795626] [2021-12-15 08:57:23,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,564 INFO L87 Difference]: Start difference. First operand 767 states and 1056 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,608 INFO L93 Difference]: Finished difference Result 1550 states and 2130 transitions. [2021-12-15 08:57:23,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,608 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-12-15 08:57:23,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,611 INFO L225 Difference]: With dead ends: 1550 [2021-12-15 08:57:23,611 INFO L226 Difference]: Without dead ends: 791 [2021-12-15 08:57:23,612 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,613 INFO L933 BasicCegarLoop]: 239 mSDtfsCounter, 10 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,614 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 424 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:23,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2021-12-15 08:57:23,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 791. [2021-12-15 08:57:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 791 states, 790 states have (on average 1.3734177215189873) internal successors, (1085), 790 states have internal predecessors, (1085), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 791 states to 791 states and 1085 transitions. [2021-12-15 08:57:23,630 INFO L78 Accepts]: Start accepts. Automaton has 791 states and 1085 transitions. Word has length 134 [2021-12-15 08:57:23,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,631 INFO L470 AbstractCegarLoop]: Abstraction has 791 states and 1085 transitions. [2021-12-15 08:57:23,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,631 INFO L276 IsEmpty]: Start isEmpty. Operand 791 states and 1085 transitions. [2021-12-15 08:57:23,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-15 08:57:23,633 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,633 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,634 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 08:57:23,634 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,634 INFO L85 PathProgramCache]: Analyzing trace with hash 1155556838, now seen corresponding path program 1 times [2021-12-15 08:57:23,634 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,635 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513030097] [2021-12-15 08:57:23,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,635 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,670 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2021-12-15 08:57:23,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513030097] [2021-12-15 08:57:23,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513030097] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990473743] [2021-12-15 08:57:23,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,674 INFO L87 Difference]: Start difference. First operand 791 states and 1085 transitions. Second operand has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,716 INFO L93 Difference]: Finished difference Result 1587 states and 2172 transitions. [2021-12-15 08:57:23,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 134 [2021-12-15 08:57:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,720 INFO L225 Difference]: With dead ends: 1587 [2021-12-15 08:57:23,720 INFO L226 Difference]: Without dead ends: 804 [2021-12-15 08:57:23,722 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,723 INFO L933 BasicCegarLoop]: 229 mSDtfsCounter, 6 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 404 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,723 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6 Valid, 404 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:23,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2021-12-15 08:57:23,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 804. [2021-12-15 08:57:23,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 804 states, 803 states have (on average 1.3673723536737235) internal successors, (1098), 803 states have internal predecessors, (1098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 1098 transitions. [2021-12-15 08:57:23,739 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 1098 transitions. Word has length 134 [2021-12-15 08:57:23,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,741 INFO L470 AbstractCegarLoop]: Abstraction has 804 states and 1098 transitions. [2021-12-15 08:57:23,742 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.666666666666668) internal successors, (83), 3 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,742 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 1098 transitions. [2021-12-15 08:57:23,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-15 08:57:23,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,744 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 08:57:23,744 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,745 INFO L85 PathProgramCache]: Analyzing trace with hash 1986637546, now seen corresponding path program 1 times [2021-12-15 08:57:23,745 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,745 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1108799551] [2021-12-15 08:57:23,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,746 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,786 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-15 08:57:23,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1108799551] [2021-12-15 08:57:23,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1108799551] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,787 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,787 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672164717] [2021-12-15 08:57:23,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,788 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,788 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,789 INFO L87 Difference]: Start difference. First operand 804 states and 1098 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:23,893 INFO L93 Difference]: Finished difference Result 1649 states and 2277 transitions. [2021-12-15 08:57:23,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:23,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 153 [2021-12-15 08:57:23,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:23,897 INFO L225 Difference]: With dead ends: 1649 [2021-12-15 08:57:23,897 INFO L226 Difference]: Without dead ends: 866 [2021-12-15 08:57:23,898 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,899 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 10 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:23,899 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 376 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:23,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2021-12-15 08:57:23,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 862. [2021-12-15 08:57:23,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 862 states, 861 states have (on average 1.354239256678281) internal successors, (1166), 861 states have internal predecessors, (1166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1166 transitions. [2021-12-15 08:57:23,920 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1166 transitions. Word has length 153 [2021-12-15 08:57:23,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:23,920 INFO L470 AbstractCegarLoop]: Abstraction has 862 states and 1166 transitions. [2021-12-15 08:57:23,920 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:23,921 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1166 transitions. [2021-12-15 08:57:23,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2021-12-15 08:57:23,923 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:23,923 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:23,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 08:57:23,924 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:23,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:23,924 INFO L85 PathProgramCache]: Analyzing trace with hash -366759025, now seen corresponding path program 1 times [2021-12-15 08:57:23,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:23,924 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527542593] [2021-12-15 08:57:23,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:23,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:23,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:23,980 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 177 proven. 0 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2021-12-15 08:57:23,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:23,981 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527542593] [2021-12-15 08:57:23,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527542593] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:23,981 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:23,981 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:23,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427393031] [2021-12-15 08:57:23,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:23,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:23,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:23,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:23,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:23,983 INFO L87 Difference]: Start difference. First operand 862 states and 1166 transitions. Second operand has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:24,067 INFO L93 Difference]: Finished difference Result 2110 states and 2873 transitions. [2021-12-15 08:57:24,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:24,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2021-12-15 08:57:24,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:24,072 INFO L225 Difference]: With dead ends: 2110 [2021-12-15 08:57:24,072 INFO L226 Difference]: Without dead ends: 1269 [2021-12-15 08:57:24,074 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:24,075 INFO L933 BasicCegarLoop]: 399 mSDtfsCounter, 157 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 157 SdHoareTripleChecker+Valid, 584 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:24,075 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [157 Valid, 584 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:24,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2021-12-15 08:57:24,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1269. [2021-12-15 08:57:24,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1269 states, 1268 states have (on average 1.3485804416403786) internal successors, (1710), 1268 states have internal predecessors, (1710), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1269 states to 1269 states and 1710 transitions. [2021-12-15 08:57:24,103 INFO L78 Accepts]: Start accepts. Automaton has 1269 states and 1710 transitions. Word has length 159 [2021-12-15 08:57:24,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:24,104 INFO L470 AbstractCegarLoop]: Abstraction has 1269 states and 1710 transitions. [2021-12-15 08:57:24,104 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.333333333333336) internal successors, (115), 3 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,104 INFO L276 IsEmpty]: Start isEmpty. Operand 1269 states and 1710 transitions. [2021-12-15 08:57:24,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-12-15 08:57:24,107 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:24,107 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:24,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 08:57:24,108 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:24,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:24,108 INFO L85 PathProgramCache]: Analyzing trace with hash 81535942, now seen corresponding path program 1 times [2021-12-15 08:57:24,108 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:24,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254062499] [2021-12-15 08:57:24,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:24,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:24,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:24,162 INFO L134 CoverageAnalysis]: Checked inductivity of 235 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-15 08:57:24,163 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:24,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254062499] [2021-12-15 08:57:24,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254062499] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:24,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:24,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:24,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921361609] [2021-12-15 08:57:24,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:24,164 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:24,164 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:24,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:24,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:24,165 INFO L87 Difference]: Start difference. First operand 1269 states and 1710 transitions. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:24,299 INFO L93 Difference]: Finished difference Result 2610 states and 3560 transitions. [2021-12-15 08:57:24,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:24,300 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2021-12-15 08:57:24,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:24,304 INFO L225 Difference]: With dead ends: 2610 [2021-12-15 08:57:24,305 INFO L226 Difference]: Without dead ends: 1362 [2021-12-15 08:57:24,306 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:24,307 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 15 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:24,307 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 370 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:24,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1362 states. [2021-12-15 08:57:24,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1362 to 1362. [2021-12-15 08:57:24,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1362 states, 1361 states have (on average 1.3357825128581926) internal successors, (1818), 1361 states have internal predecessors, (1818), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1362 states to 1362 states and 1818 transitions. [2021-12-15 08:57:24,338 INFO L78 Accepts]: Start accepts. Automaton has 1362 states and 1818 transitions. Word has length 160 [2021-12-15 08:57:24,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:24,339 INFO L470 AbstractCegarLoop]: Abstraction has 1362 states and 1818 transitions. [2021-12-15 08:57:24,339 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:24,339 INFO L276 IsEmpty]: Start isEmpty. Operand 1362 states and 1818 transitions. [2021-12-15 08:57:24,342 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2021-12-15 08:57:24,342 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:24,343 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:24,343 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 08:57:24,343 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:24,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:24,344 INFO L85 PathProgramCache]: Analyzing trace with hash -212433663, now seen corresponding path program 1 times [2021-12-15 08:57:24,344 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:24,344 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982333146] [2021-12-15 08:57:24,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:24,344 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:24,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:24,397 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 26 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2021-12-15 08:57:24,398 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:24,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [982333146] [2021-12-15 08:57:24,398 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [982333146] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:24,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1365490202] [2021-12-15 08:57:24,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:24,399 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:24,399 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:24,403 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) [2021-12-15 08:57:24,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 08:57:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:24,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 387 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:24,518 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:24,951 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2021-12-15 08:57:24,951 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:24,952 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1365490202] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:24,952 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:24,952 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:24,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970409435] [2021-12-15 08:57:24,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:24,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:24,955 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:24,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:24,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:24,956 INFO L87 Difference]: Start difference. First operand 1362 states and 1818 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:25,046 INFO L93 Difference]: Finished difference Result 3142 states and 4214 transitions. [2021-12-15 08:57:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:25,047 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 188 [2021-12-15 08:57:25,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:25,053 INFO L225 Difference]: With dead ends: 3142 [2021-12-15 08:57:25,053 INFO L226 Difference]: Without dead ends: 1801 [2021-12-15 08:57:25,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 191 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:25,055 INFO L933 BasicCegarLoop]: 202 mSDtfsCounter, 163 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 377 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:25,056 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [163 Valid, 377 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:25,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1801 states. [2021-12-15 08:57:25,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1801 to 1801. [2021-12-15 08:57:25,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1801 states, 1800 states have (on average 1.336111111111111) internal successors, (2405), 1800 states have internal predecessors, (2405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2405 transitions. [2021-12-15 08:57:25,094 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2405 transitions. Word has length 188 [2021-12-15 08:57:25,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:25,094 INFO L470 AbstractCegarLoop]: Abstraction has 1801 states and 2405 transitions. [2021-12-15 08:57:25,095 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,095 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2405 transitions. [2021-12-15 08:57:25,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2021-12-15 08:57:25,099 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:25,099 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:25,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:25,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-12-15 08:57:25,316 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:25,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:25,316 INFO L85 PathProgramCache]: Analyzing trace with hash 1056148917, now seen corresponding path program 1 times [2021-12-15 08:57:25,316 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:25,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886653771] [2021-12-15 08:57:25,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:25,316 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:25,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:25,354 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-12-15 08:57:25,354 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:25,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886653771] [2021-12-15 08:57:25,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886653771] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:25,355 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:25,355 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:25,355 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [494949301] [2021-12-15 08:57:25,355 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:25,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:25,356 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:25,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:25,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:25,357 INFO L87 Difference]: Start difference. First operand 1801 states and 2405 transitions. Second operand has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:25,494 INFO L93 Difference]: Finished difference Result 3674 states and 4932 transitions. [2021-12-15 08:57:25,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:25,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2021-12-15 08:57:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:25,501 INFO L225 Difference]: With dead ends: 3674 [2021-12-15 08:57:25,501 INFO L226 Difference]: Without dead ends: 1894 [2021-12-15 08:57:25,505 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:25,506 INFO L933 BasicCegarLoop]: 245 mSDtfsCounter, 12 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:25,506 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 380 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:25,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1894 states. [2021-12-15 08:57:25,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1894 to 1881. [2021-12-15 08:57:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1880 states have (on average 1.3324468085106382) internal successors, (2505), 1880 states have internal predecessors, (2505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2505 transitions. [2021-12-15 08:57:25,551 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2505 transitions. Word has length 219 [2021-12-15 08:57:25,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:25,551 INFO L470 AbstractCegarLoop]: Abstraction has 1881 states and 2505 transitions. [2021-12-15 08:57:25,552 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.333333333333336) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,552 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2505 transitions. [2021-12-15 08:57:25,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-15 08:57:25,557 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:25,557 INFO L514 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:25,557 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 08:57:25,557 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:25,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:25,558 INFO L85 PathProgramCache]: Analyzing trace with hash -56399009, now seen corresponding path program 1 times [2021-12-15 08:57:25,558 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:25,558 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410099813] [2021-12-15 08:57:25,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:25,559 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:25,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 488 backedges. 140 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2021-12-15 08:57:25,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:25,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410099813] [2021-12-15 08:57:25,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [410099813] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:25,604 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:25,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:25,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2135366699] [2021-12-15 08:57:25,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:25,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:25,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:25,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:25,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:25,607 INFO L87 Difference]: Start difference. First operand 1881 states and 2505 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:25,738 INFO L93 Difference]: Finished difference Result 3889 states and 5242 transitions. [2021-12-15 08:57:25,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:25,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2021-12-15 08:57:25,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:25,745 INFO L225 Difference]: With dead ends: 3889 [2021-12-15 08:57:25,745 INFO L226 Difference]: Without dead ends: 2029 [2021-12-15 08:57:25,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:25,749 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 12 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:25,749 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 376 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:25,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2029 states. [2021-12-15 08:57:25,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2029 to 2017. [2021-12-15 08:57:25,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2017 states, 2016 states have (on average 1.3199404761904763) internal successors, (2661), 2016 states have internal predecessors, (2661), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2017 states to 2017 states and 2661 transitions. [2021-12-15 08:57:25,790 INFO L78 Accepts]: Start accepts. Automaton has 2017 states and 2661 transitions. Word has length 221 [2021-12-15 08:57:25,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:25,790 INFO L470 AbstractCegarLoop]: Abstraction has 2017 states and 2661 transitions. [2021-12-15 08:57:25,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,791 INFO L276 IsEmpty]: Start isEmpty. Operand 2017 states and 2661 transitions. [2021-12-15 08:57:25,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2021-12-15 08:57:25,795 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:25,796 INFO L514 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 7, 7, 6, 6, 5, 5, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:25,796 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 08:57:25,796 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:25,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:25,797 INFO L85 PathProgramCache]: Analyzing trace with hash 364997896, now seen corresponding path program 1 times [2021-12-15 08:57:25,797 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:25,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963606169] [2021-12-15 08:57:25,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:25,798 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:25,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:25,860 INFO L134 CoverageAnalysis]: Checked inductivity of 657 backedges. 169 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-12-15 08:57:25,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:25,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1963606169] [2021-12-15 08:57:25,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1963606169] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:25,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:25,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:25,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581877950] [2021-12-15 08:57:25,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:25,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:25,862 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:25,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:25,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:25,863 INFO L87 Difference]: Start difference. First operand 2017 states and 2661 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:25,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:25,991 INFO L93 Difference]: Finished difference Result 4169 states and 5570 transitions. [2021-12-15 08:57:25,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:25,992 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 253 [2021-12-15 08:57:25,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:25,999 INFO L225 Difference]: With dead ends: 4169 [2021-12-15 08:57:26,000 INFO L226 Difference]: Without dead ends: 2173 [2021-12-15 08:57:26,002 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,003 INFO L933 BasicCegarLoop]: 241 mSDtfsCounter, 12 mSDsluCounter, 135 mSDsCounter, 0 mSdLazyCounter, 123 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 376 SdHoareTripleChecker+Invalid, 148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 123 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,003 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 376 Invalid, 148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 123 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:26,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2173 states. [2021-12-15 08:57:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2173 to 2161. [2021-12-15 08:57:26,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2161 states, 2160 states have (on average 1.3078703703703705) internal successors, (2825), 2160 states have internal predecessors, (2825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2161 states to 2161 states and 2825 transitions. [2021-12-15 08:57:26,046 INFO L78 Accepts]: Start accepts. Automaton has 2161 states and 2825 transitions. Word has length 253 [2021-12-15 08:57:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,047 INFO L470 AbstractCegarLoop]: Abstraction has 2161 states and 2825 transitions. [2021-12-15 08:57:26,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 2161 states and 2825 transitions. [2021-12-15 08:57:26,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-15 08:57:26,053 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,053 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 08:57:26,054 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1220311239, now seen corresponding path program 1 times [2021-12-15 08:57:26,054 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,054 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258157159] [2021-12-15 08:57:26,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,055 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,098 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 200 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-12-15 08:57:26,099 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:26,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258157159] [2021-12-15 08:57:26,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258157159] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:26,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:26,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:26,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822769469] [2021-12-15 08:57:26,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:26,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:26,100 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:26,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:26,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,101 INFO L87 Difference]: Start difference. First operand 2161 states and 2825 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:26,197 INFO L93 Difference]: Finished difference Result 4822 states and 6320 transitions. [2021-12-15 08:57:26,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:26,198 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-12-15 08:57:26,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:26,207 INFO L225 Difference]: With dead ends: 4822 [2021-12-15 08:57:26,207 INFO L226 Difference]: Without dead ends: 2682 [2021-12-15 08:57:26,209 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,210 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 151 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,210 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [151 Valid, 583 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:26,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2682 states. [2021-12-15 08:57:26,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2682 to 2682. [2021-12-15 08:57:26,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2682 states, 2681 states have (on average 1.3062290190227528) internal successors, (3502), 2681 states have internal predecessors, (3502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2682 states to 2682 states and 3502 transitions. [2021-12-15 08:57:26,262 INFO L78 Accepts]: Start accepts. Automaton has 2682 states and 3502 transitions. Word has length 287 [2021-12-15 08:57:26,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,262 INFO L470 AbstractCegarLoop]: Abstraction has 2682 states and 3502 transitions. [2021-12-15 08:57:26,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,263 INFO L276 IsEmpty]: Start isEmpty. Operand 2682 states and 3502 transitions. [2021-12-15 08:57:26,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-15 08:57:26,268 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,269 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 08:57:26,269 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,270 INFO L85 PathProgramCache]: Analyzing trace with hash -972164745, now seen corresponding path program 1 times [2021-12-15 08:57:26,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127418924] [2021-12-15 08:57:26,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,315 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 369 proven. 0 refuted. 0 times theorem prover too weak. 488 trivial. 0 not checked. [2021-12-15 08:57:26,315 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:26,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127418924] [2021-12-15 08:57:26,315 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127418924] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:26,315 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:26,316 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:26,316 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293153851] [2021-12-15 08:57:26,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:26,316 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:26,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:26,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:26,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,317 INFO L87 Difference]: Start difference. First operand 2682 states and 3502 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:26,384 INFO L93 Difference]: Finished difference Result 5382 states and 7024 transitions. [2021-12-15 08:57:26,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:26,384 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-12-15 08:57:26,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:26,394 INFO L225 Difference]: With dead ends: 5382 [2021-12-15 08:57:26,394 INFO L226 Difference]: Without dead ends: 2721 [2021-12-15 08:57:26,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,399 INFO L933 BasicCegarLoop]: 272 mSDtfsCounter, 10 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 457 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:26,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2021-12-15 08:57:26,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2721. [2021-12-15 08:57:26,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2721 states, 2720 states have (on average 1.3036764705882353) internal successors, (3546), 2720 states have internal predecessors, (3546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2721 states to 2721 states and 3546 transitions. [2021-12-15 08:57:26,485 INFO L78 Accepts]: Start accepts. Automaton has 2721 states and 3546 transitions. Word has length 287 [2021-12-15 08:57:26,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,485 INFO L470 AbstractCegarLoop]: Abstraction has 2721 states and 3546 transitions. [2021-12-15 08:57:26,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,486 INFO L276 IsEmpty]: Start isEmpty. Operand 2721 states and 3546 transitions. [2021-12-15 08:57:26,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-15 08:57:26,492 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,493 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,493 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 08:57:26,493 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,494 INFO L85 PathProgramCache]: Analyzing trace with hash 1245465653, now seen corresponding path program 1 times [2021-12-15 08:57:26,494 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,494 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [914088364] [2021-12-15 08:57:26,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,494 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,536 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 379 trivial. 0 not checked. [2021-12-15 08:57:26,537 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:26,537 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [914088364] [2021-12-15 08:57:26,537 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [914088364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:26,537 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:26,537 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:26,538 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762361490] [2021-12-15 08:57:26,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:26,538 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:26,538 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:26,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:26,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,539 INFO L87 Difference]: Start difference. First operand 2721 states and 3546 transitions. Second operand has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:26,602 INFO L93 Difference]: Finished difference Result 5458 states and 7110 transitions. [2021-12-15 08:57:26,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:26,603 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-12-15 08:57:26,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:26,612 INFO L225 Difference]: With dead ends: 5458 [2021-12-15 08:57:26,612 INFO L226 Difference]: Without dead ends: 2758 [2021-12-15 08:57:26,616 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,616 INFO L933 BasicCegarLoop]: 270 mSDtfsCounter, 10 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 455 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,617 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 455 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:26,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2758 states. [2021-12-15 08:57:26,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2758 to 2758. [2021-12-15 08:57:26,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2758 states, 2757 states have (on average 1.3014145810663764) internal successors, (3588), 2757 states have internal predecessors, (3588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2758 states to 2758 states and 3588 transitions. [2021-12-15 08:57:26,672 INFO L78 Accepts]: Start accepts. Automaton has 2758 states and 3588 transitions. Word has length 287 [2021-12-15 08:57:26,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,672 INFO L470 AbstractCegarLoop]: Abstraction has 2758 states and 3588 transitions. [2021-12-15 08:57:26,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 50.0) internal successors, (150), 3 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,673 INFO L276 IsEmpty]: Start isEmpty. Operand 2758 states and 3588 transitions. [2021-12-15 08:57:26,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-12-15 08:57:26,679 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,679 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 8, 8, 7, 7, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 08:57:26,680 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,680 INFO L85 PathProgramCache]: Analyzing trace with hash -727699725, now seen corresponding path program 1 times [2021-12-15 08:57:26,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624929707] [2021-12-15 08:57:26,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:26,736 INFO L134 CoverageAnalysis]: Checked inductivity of 857 backedges. 420 proven. 0 refuted. 0 times theorem prover too weak. 437 trivial. 0 not checked. [2021-12-15 08:57:26,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:26,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624929707] [2021-12-15 08:57:26,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624929707] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:26,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:26,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:26,737 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202078333] [2021-12-15 08:57:26,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:26,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:26,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:26,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:26,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,739 INFO L87 Difference]: Start difference. First operand 2758 states and 3588 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:26,838 INFO L93 Difference]: Finished difference Result 5989 states and 7819 transitions. [2021-12-15 08:57:26,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:26,843 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 287 [2021-12-15 08:57:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:26,867 INFO L225 Difference]: With dead ends: 5989 [2021-12-15 08:57:26,868 INFO L226 Difference]: Without dead ends: 3252 [2021-12-15 08:57:26,872 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:26,873 INFO L933 BasicCegarLoop]: 401 mSDtfsCounter, 191 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:26,874 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [191 Valid, 586 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:26,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3252 states. [2021-12-15 08:57:26,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3252 to 3252. [2021-12-15 08:57:26,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3252 states, 3251 states have (on average 1.3023685019993847) internal successors, (4234), 3251 states have internal predecessors, (4234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3252 states to 3252 states and 4234 transitions. [2021-12-15 08:57:26,954 INFO L78 Accepts]: Start accepts. Automaton has 3252 states and 4234 transitions. Word has length 287 [2021-12-15 08:57:26,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:26,955 INFO L470 AbstractCegarLoop]: Abstraction has 3252 states and 4234 transitions. [2021-12-15 08:57:26,955 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:26,956 INFO L276 IsEmpty]: Start isEmpty. Operand 3252 states and 4234 transitions. [2021-12-15 08:57:26,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2021-12-15 08:57:26,964 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:26,964 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 9, 9, 8, 8, 7, 7, 6, 6, 6, 6, 5, 4, 4, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:26,964 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 08:57:26,964 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:26,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:26,965 INFO L85 PathProgramCache]: Analyzing trace with hash 404364874, now seen corresponding path program 1 times [2021-12-15 08:57:26,965 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:26,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922447478] [2021-12-15 08:57:26,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:26,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:27,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1092 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 641 trivial. 0 not checked. [2021-12-15 08:57:27,036 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:27,036 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922447478] [2021-12-15 08:57:27,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922447478] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:27,036 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:27,037 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:27,037 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487525987] [2021-12-15 08:57:27,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:27,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:27,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:27,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:27,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:27,039 INFO L87 Difference]: Start difference. First operand 3252 states and 4234 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:27,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:27,125 INFO L93 Difference]: Finished difference Result 9515 states and 12418 transitions. [2021-12-15 08:57:27,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:27,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 325 [2021-12-15 08:57:27,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:27,138 INFO L225 Difference]: With dead ends: 9515 [2021-12-15 08:57:27,138 INFO L226 Difference]: Without dead ends: 6284 [2021-12-15 08:57:27,141 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:27,143 INFO L933 BasicCegarLoop]: 376 mSDtfsCounter, 135 mSDsluCounter, 223 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 599 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:27,143 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 599 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:27,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6284 states. [2021-12-15 08:57:27,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6284 to 6282. [2021-12-15 08:57:27,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6282 states, 6281 states have (on average 1.3040917051424932) internal successors, (8191), 6281 states have internal predecessors, (8191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:27,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6282 states to 6282 states and 8191 transitions. [2021-12-15 08:57:27,264 INFO L78 Accepts]: Start accepts. Automaton has 6282 states and 8191 transitions. Word has length 325 [2021-12-15 08:57:27,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:27,265 INFO L470 AbstractCegarLoop]: Abstraction has 6282 states and 8191 transitions. [2021-12-15 08:57:27,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:27,265 INFO L276 IsEmpty]: Start isEmpty. Operand 6282 states and 8191 transitions. [2021-12-15 08:57:27,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-12-15 08:57:27,279 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:27,279 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 10, 10, 9, 9, 8, 8, 7, 7, 7, 7, 6, 5, 5, 4, 4, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:27,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-12-15 08:57:27,280 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:27,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:27,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1994061044, now seen corresponding path program 1 times [2021-12-15 08:57:27,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:27,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160456363] [2021-12-15 08:57:27,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:27,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:27,344 INFO L134 CoverageAnalysis]: Checked inductivity of 1416 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 1090 trivial. 0 not checked. [2021-12-15 08:57:27,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:27,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160456363] [2021-12-15 08:57:27,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160456363] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:27,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 08:57:27,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 08:57:27,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524676007] [2021-12-15 08:57:27,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:27,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:27,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:27,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:27,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:27,347 INFO L87 Difference]: Start difference. First operand 6282 states and 8191 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:27,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:27,551 INFO L93 Difference]: Finished difference Result 12675 states and 16533 transitions. [2021-12-15 08:57:27,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:27,551 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2021-12-15 08:57:27,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:27,562 INFO L225 Difference]: With dead ends: 12675 [2021-12-15 08:57:27,562 INFO L226 Difference]: Without dead ends: 6402 [2021-12-15 08:57:27,568 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 08:57:27,569 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 174 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:27,570 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [174 Valid, 227 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:27,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6402 states. [2021-12-15 08:57:27,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6402 to 6318. [2021-12-15 08:57:27,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6318 states, 6317 states have (on average 1.300459078676587) internal successors, (8215), 6317 states have internal predecessors, (8215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:27,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6318 states to 6318 states and 8215 transitions. [2021-12-15 08:57:27,682 INFO L78 Accepts]: Start accepts. Automaton has 6318 states and 8215 transitions. Word has length 378 [2021-12-15 08:57:27,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:27,683 INFO L470 AbstractCegarLoop]: Abstraction has 6318 states and 8215 transitions. [2021-12-15 08:57:27,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:27,683 INFO L276 IsEmpty]: Start isEmpty. Operand 6318 states and 8215 transitions. [2021-12-15 08:57:27,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 436 [2021-12-15 08:57:27,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:27,697 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 11, 11, 10, 10, 9, 9, 9, 9, 7, 6, 6, 5, 5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:27,697 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-12-15 08:57:27,698 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:27,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:27,699 INFO L85 PathProgramCache]: Analyzing trace with hash 746027085, now seen corresponding path program 1 times [2021-12-15 08:57:27,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:27,699 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325239604] [2021-12-15 08:57:27,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:27,699 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:27,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:27,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 572 proven. 26 refuted. 0 times theorem prover too weak. 1358 trivial. 0 not checked. [2021-12-15 08:57:27,793 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:27,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325239604] [2021-12-15 08:57:27,793 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325239604] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:27,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1711128320] [2021-12-15 08:57:27,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:27,794 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:27,794 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:27,796 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) [2021-12-15 08:57:27,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 08:57:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:27,931 INFO L263 TraceCheckSpWp]: Trace formula consists of 727 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:27,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:28,580 INFO L134 CoverageAnalysis]: Checked inductivity of 1956 backedges. 572 proven. 0 refuted. 0 times theorem prover too weak. 1384 trivial. 0 not checked. [2021-12-15 08:57:28,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:28,581 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1711128320] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:28,581 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:28,581 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:28,581 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074103487] [2021-12-15 08:57:28,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:28,582 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:28,582 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:28,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:28,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:28,583 INFO L87 Difference]: Start difference. First operand 6318 states and 8215 transitions. Second operand has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:28,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:28,758 INFO L93 Difference]: Finished difference Result 13652 states and 17790 transitions. [2021-12-15 08:57:28,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:28,759 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 435 [2021-12-15 08:57:28,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:28,772 INFO L225 Difference]: With dead ends: 13652 [2021-12-15 08:57:28,772 INFO L226 Difference]: Without dead ends: 7355 [2021-12-15 08:57:28,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 438 GetRequests, 435 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:28,781 INFO L933 BasicCegarLoop]: 195 mSDtfsCounter, 161 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:28,781 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 370 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:28,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7355 states. [2021-12-15 08:57:28,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7355 to 7355. [2021-12-15 08:57:28,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7355 states, 7354 states have (on average 1.3029643731302691) internal successors, (9582), 7354 states have internal predecessors, (9582), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:28,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7355 states to 7355 states and 9582 transitions. [2021-12-15 08:57:28,925 INFO L78 Accepts]: Start accepts. Automaton has 7355 states and 9582 transitions. Word has length 435 [2021-12-15 08:57:28,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:28,926 INFO L470 AbstractCegarLoop]: Abstraction has 7355 states and 9582 transitions. [2021-12-15 08:57:28,926 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.0) internal successors, (153), 3 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:28,926 INFO L276 IsEmpty]: Start isEmpty. Operand 7355 states and 9582 transitions. [2021-12-15 08:57:28,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2021-12-15 08:57:28,940 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:28,941 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 14, 14, 14, 14, 14, 13, 13, 12, 12, 11, 11, 10, 10, 10, 10, 8, 7, 7, 6, 6, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:28,967 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:29,167 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,SelfDestructingSolverStorable24 [2021-12-15 08:57:29,168 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:29,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:29,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1181176621, now seen corresponding path program 1 times [2021-12-15 08:57:29,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:29,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698694252] [2021-12-15 08:57:29,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:29,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:29,233 INFO L134 CoverageAnalysis]: Checked inductivity of 2322 backedges. 1281 proven. 18 refuted. 0 times theorem prover too weak. 1023 trivial. 0 not checked. [2021-12-15 08:57:29,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:29,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698694252] [2021-12-15 08:57:29,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698694252] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:29,234 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1212696209] [2021-12-15 08:57:29,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:29,234 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:29,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:29,235 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) [2021-12-15 08:57:29,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-12-15 08:57:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:29,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 775 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:29,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:29,977 INFO L134 CoverageAnalysis]: Checked inductivity of 2322 backedges. 693 proven. 0 refuted. 0 times theorem prover too weak. 1629 trivial. 0 not checked. [2021-12-15 08:57:29,977 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:29,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1212696209] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:29,978 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:29,978 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:29,978 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908758363] [2021-12-15 08:57:29,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:29,979 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:29,979 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:29,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:29,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:29,980 INFO L87 Difference]: Start difference. First operand 7355 states and 9582 transitions. Second operand has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:30,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:30,120 INFO L93 Difference]: Finished difference Result 15726 states and 20506 transitions. [2021-12-15 08:57:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:30,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2021-12-15 08:57:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:30,136 INFO L225 Difference]: With dead ends: 15726 [2021-12-15 08:57:30,136 INFO L226 Difference]: Without dead ends: 8392 [2021-12-15 08:57:30,145 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 483 GetRequests, 480 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:30,146 INFO L933 BasicCegarLoop]: 197 mSDtfsCounter, 167 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 167 SdHoareTripleChecker+Valid, 372 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:30,146 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [167 Valid, 372 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:30,154 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8392 states. [2021-12-15 08:57:30,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8392 to 8392. [2021-12-15 08:57:30,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8392 states, 8391 states have (on average 1.3043737337623644) internal successors, (10945), 8391 states have internal predecessors, (10945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:30,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8392 states to 8392 states and 10945 transitions. [2021-12-15 08:57:30,328 INFO L78 Accepts]: Start accepts. Automaton has 8392 states and 10945 transitions. Word has length 480 [2021-12-15 08:57:30,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:30,328 INFO L470 AbstractCegarLoop]: Abstraction has 8392 states and 10945 transitions. [2021-12-15 08:57:30,329 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.0) internal successors, (195), 3 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:30,329 INFO L276 IsEmpty]: Start isEmpty. Operand 8392 states and 10945 transitions. [2021-12-15 08:57:30,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 587 [2021-12-15 08:57:30,347 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:30,347 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:30,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:30,571 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:30,571 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:30,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:30,572 INFO L85 PathProgramCache]: Analyzing trace with hash -349156580, now seen corresponding path program 1 times [2021-12-15 08:57:30,572 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:30,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974146529] [2021-12-15 08:57:30,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:30,572 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:30,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:30,658 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1996 proven. 26 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-12-15 08:57:30,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:30,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974146529] [2021-12-15 08:57:30,659 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974146529] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:30,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359387420] [2021-12-15 08:57:30,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:30,659 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:30,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:30,661 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) [2021-12-15 08:57:30,690 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-12-15 08:57:30,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:30,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 925 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:30,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:31,619 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 809 proven. 0 refuted. 0 times theorem prover too weak. 2753 trivial. 0 not checked. [2021-12-15 08:57:31,620 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:31,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359387420] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:31,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:31,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:31,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870779924] [2021-12-15 08:57:31,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:31,621 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:31,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:31,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:31,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:31,622 INFO L87 Difference]: Start difference. First operand 8392 states and 10945 transitions. Second operand has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:31,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:31,774 INFO L93 Difference]: Finished difference Result 17751 states and 23191 transitions. [2021-12-15 08:57:31,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:31,774 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 586 [2021-12-15 08:57:31,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:31,791 INFO L225 Difference]: With dead ends: 17751 [2021-12-15 08:57:31,792 INFO L226 Difference]: Without dead ends: 9380 [2021-12-15 08:57:31,802 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 586 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:31,803 INFO L933 BasicCegarLoop]: 398 mSDtfsCounter, 146 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 583 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:31,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [146 Valid, 583 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:31,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9380 states. [2021-12-15 08:57:31,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9380 to 9380. [2021-12-15 08:57:31,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9380 states, 9379 states have (on average 1.3040835910011728) internal successors, (12231), 9379 states have internal predecessors, (12231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:32,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9380 states to 9380 states and 12231 transitions. [2021-12-15 08:57:32,007 INFO L78 Accepts]: Start accepts. Automaton has 9380 states and 12231 transitions. Word has length 586 [2021-12-15 08:57:32,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:32,008 INFO L470 AbstractCegarLoop]: Abstraction has 9380 states and 12231 transitions. [2021-12-15 08:57:32,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.0) internal successors, (162), 3 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:32,009 INFO L276 IsEmpty]: Start isEmpty. Operand 9380 states and 12231 transitions. [2021-12-15 08:57:32,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2021-12-15 08:57:32,033 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:32,033 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:32,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-12-15 08:57:32,258 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-12-15 08:57:32,258 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:32,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:32,258 INFO L85 PathProgramCache]: Analyzing trace with hash 1741653189, now seen corresponding path program 1 times [2021-12-15 08:57:32,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:32,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393744624] [2021-12-15 08:57:32,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:32,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:32,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:32,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1996 proven. 26 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-12-15 08:57:32,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:32,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393744624] [2021-12-15 08:57:32,362 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393744624] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:32,362 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662237439] [2021-12-15 08:57:32,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:32,363 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:32,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:32,364 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) [2021-12-15 08:57:32,365 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-12-15 08:57:32,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:32,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 926 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:32,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:33,347 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1212 proven. 0 refuted. 0 times theorem prover too weak. 2350 trivial. 0 not checked. [2021-12-15 08:57:33,347 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:33,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662237439] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:33,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:33,348 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:33,348 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094899030] [2021-12-15 08:57:33,348 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:33,349 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:33,349 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:33,349 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:33,349 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:33,350 INFO L87 Difference]: Start difference. First operand 9380 states and 12231 transitions. Second operand has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:33,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:33,497 INFO L93 Difference]: Finished difference Result 18845 states and 24569 transitions. [2021-12-15 08:57:33,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:33,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 587 [2021-12-15 08:57:33,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:33,516 INFO L225 Difference]: With dead ends: 18845 [2021-12-15 08:57:33,516 INFO L226 Difference]: Without dead ends: 9486 [2021-12-15 08:57:33,529 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 590 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:33,530 INFO L933 BasicCegarLoop]: 283 mSDtfsCounter, 18 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:33,530 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [18 Valid, 468 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 08:57:33,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9486 states. [2021-12-15 08:57:33,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9486 to 9486. [2021-12-15 08:57:33,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9486 states, 9485 states have (on average 1.302161307327359) internal successors, (12351), 9485 states have internal predecessors, (12351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:33,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9486 states to 9486 states and 12351 transitions. [2021-12-15 08:57:33,733 INFO L78 Accepts]: Start accepts. Automaton has 9486 states and 12351 transitions. Word has length 587 [2021-12-15 08:57:33,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:33,734 INFO L470 AbstractCegarLoop]: Abstraction has 9486 states and 12351 transitions. [2021-12-15 08:57:33,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 67.66666666666667) internal successors, (203), 3 states have internal predecessors, (203), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:33,734 INFO L276 IsEmpty]: Start isEmpty. Operand 9486 states and 12351 transitions. [2021-12-15 08:57:33,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 589 [2021-12-15 08:57:33,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:33,751 INFO L514 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 18, 18, 17, 17, 17, 17, 17, 16, 16, 15, 15, 14, 14, 13, 13, 13, 13, 10, 9, 9, 8, 8, 7, 7, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:33,781 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:33,975 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-12-15 08:57:33,975 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:33,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:33,976 INFO L85 PathProgramCache]: Analyzing trace with hash 1162060469, now seen corresponding path program 1 times [2021-12-15 08:57:33,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:33,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242313623] [2021-12-15 08:57:33,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:33,976 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:34,065 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1996 proven. 26 refuted. 0 times theorem prover too weak. 1540 trivial. 0 not checked. [2021-12-15 08:57:34,066 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:34,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242313623] [2021-12-15 08:57:34,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242313623] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:34,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832551894] [2021-12-15 08:57:34,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:34,067 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:34,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:34,068 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) [2021-12-15 08:57:34,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-12-15 08:57:34,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:34,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 927 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:34,229 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:34,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3562 backedges. 1521 proven. 0 refuted. 0 times theorem prover too weak. 2041 trivial. 0 not checked. [2021-12-15 08:57:34,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:34,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1832551894] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:34,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:34,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:34,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124580483] [2021-12-15 08:57:34,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:34,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:34,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:34,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:34,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:34,900 INFO L87 Difference]: Start difference. First operand 9486 states and 12351 transitions. Second operand has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:35,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:35,048 INFO L93 Difference]: Finished difference Result 19896 states and 25952 transitions. [2021-12-15 08:57:35,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:35,049 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 588 [2021-12-15 08:57:35,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:35,068 INFO L225 Difference]: With dead ends: 19896 [2021-12-15 08:57:35,068 INFO L226 Difference]: Without dead ends: 10431 [2021-12-15 08:57:35,077 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 591 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:35,082 INFO L933 BasicCegarLoop]: 400 mSDtfsCounter, 149 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 585 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:35,083 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 585 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:35,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10431 states. [2021-12-15 08:57:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10431 to 10431. [2021-12-15 08:57:35,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10431 states, 10430 states have (on average 1.3025886864813039) internal successors, (13586), 10430 states have internal predecessors, (13586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:35,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10431 states to 10431 states and 13586 transitions. [2021-12-15 08:57:35,266 INFO L78 Accepts]: Start accepts. Automaton has 10431 states and 13586 transitions. Word has length 588 [2021-12-15 08:57:35,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:35,267 INFO L470 AbstractCegarLoop]: Abstraction has 10431 states and 13586 transitions. [2021-12-15 08:57:35,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 70.66666666666667) internal successors, (212), 3 states have internal predecessors, (212), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:35,268 INFO L276 IsEmpty]: Start isEmpty. Operand 10431 states and 13586 transitions. [2021-12-15 08:57:35,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 741 [2021-12-15 08:57:35,283 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:35,283 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 21, 21, 21, 21, 21, 20, 20, 19, 19, 18, 18, 17, 17, 17, 17, 13, 12, 12, 11, 11, 10, 10, 6, 6, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:35,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:35,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2021-12-15 08:57:35,507 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:35,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:35,508 INFO L85 PathProgramCache]: Analyzing trace with hash -287836341, now seen corresponding path program 1 times [2021-12-15 08:57:35,508 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:35,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370896838] [2021-12-15 08:57:35,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:35,508 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:35,612 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 3420 proven. 26 refuted. 0 times theorem prover too weak. 2232 trivial. 0 not checked. [2021-12-15 08:57:35,612 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:35,612 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370896838] [2021-12-15 08:57:35,612 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370896838] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:35,613 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270373729] [2021-12-15 08:57:35,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:35,613 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:35,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:35,614 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) [2021-12-15 08:57:35,616 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-12-15 08:57:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:35,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 1126 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:35,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 5678 backedges. 1047 proven. 0 refuted. 0 times theorem prover too weak. 4631 trivial. 0 not checked. [2021-12-15 08:57:36,641 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:36,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270373729] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:36,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:36,642 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:36,642 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610229503] [2021-12-15 08:57:36,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:36,643 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:36,643 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:36,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:36,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:36,644 INFO L87 Difference]: Start difference. First operand 10431 states and 13586 transitions. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:36,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:36,813 INFO L93 Difference]: Finished difference Result 21878 states and 28532 transitions. [2021-12-15 08:57:36,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:36,814 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 740 [2021-12-15 08:57:36,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:36,835 INFO L225 Difference]: With dead ends: 21878 [2021-12-15 08:57:36,836 INFO L226 Difference]: Without dead ends: 11468 [2021-12-15 08:57:36,845 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 740 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:36,846 INFO L933 BasicCegarLoop]: 189 mSDtfsCounter, 161 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 161 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:36,846 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [161 Valid, 364 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:36,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11468 states. [2021-12-15 08:57:36,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11468 to 11468. [2021-12-15 08:57:36,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11468 states, 11467 states have (on average 1.3050492718234934) internal successors, (14965), 11467 states have internal predecessors, (14965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11468 states to 11468 states and 14965 transitions. [2021-12-15 08:57:37,007 INFO L78 Accepts]: Start accepts. Automaton has 11468 states and 14965 transitions. Word has length 740 [2021-12-15 08:57:37,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:37,009 INFO L470 AbstractCegarLoop]: Abstraction has 11468 states and 14965 transitions. [2021-12-15 08:57:37,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:37,009 INFO L276 IsEmpty]: Start isEmpty. Operand 11468 states and 14965 transitions. [2021-12-15 08:57:37,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2021-12-15 08:57:37,025 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:37,026 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 23, 23, 23, 23, 23, 23, 23, 23, 22, 22, 22, 22, 22, 21, 21, 20, 20, 19, 19, 18, 18, 18, 18, 14, 13, 13, 12, 12, 11, 11, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:37,050 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:37,239 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:37,240 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:37,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:37,240 INFO L85 PathProgramCache]: Analyzing trace with hash -67416172, now seen corresponding path program 1 times [2021-12-15 08:57:37,240 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:37,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472042534] [2021-12-15 08:57:37,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:37,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:37,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:37,388 INFO L134 CoverageAnalysis]: Checked inductivity of 6309 backedges. 2395 proven. 18 refuted. 0 times theorem prover too weak. 3896 trivial. 0 not checked. [2021-12-15 08:57:37,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:37,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472042534] [2021-12-15 08:57:37,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472042534] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:37,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [936247879] [2021-12-15 08:57:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:37,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:37,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:37,391 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) [2021-12-15 08:57:37,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-12-15 08:57:37,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:37,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 1168 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:37,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 6309 backedges. 1221 proven. 0 refuted. 0 times theorem prover too weak. 5088 trivial. 0 not checked. [2021-12-15 08:57:38,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:38,485 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [936247879] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:38,485 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:38,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:38,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2031329655] [2021-12-15 08:57:38,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:38,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:38,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:38,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:38,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:38,487 INFO L87 Difference]: Start difference. First operand 11468 states and 14965 transitions. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:38,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:38,690 INFO L93 Difference]: Finished difference Result 23952 states and 31284 transitions. [2021-12-15 08:57:38,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:38,690 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 783 [2021-12-15 08:57:38,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:38,715 INFO L225 Difference]: With dead ends: 23952 [2021-12-15 08:57:38,716 INFO L226 Difference]: Without dead ends: 12505 [2021-12-15 08:57:38,727 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 786 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:38,727 INFO L933 BasicCegarLoop]: 191 mSDtfsCounter, 165 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 99 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:38,728 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [165 Valid, 366 Invalid, 99 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:38,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12505 states. [2021-12-15 08:57:38,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12505 to 12505. [2021-12-15 08:57:38,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12505 states, 12504 states have (on average 1.3067818298144593) internal successors, (16340), 12504 states have internal predecessors, (16340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12505 states to 12505 states and 16340 transitions. [2021-12-15 08:57:38,926 INFO L78 Accepts]: Start accepts. Automaton has 12505 states and 16340 transitions. Word has length 783 [2021-12-15 08:57:38,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:38,928 INFO L470 AbstractCegarLoop]: Abstraction has 12505 states and 16340 transitions. [2021-12-15 08:57:38,928 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 12505 states and 16340 transitions. [2021-12-15 08:57:38,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2021-12-15 08:57:38,949 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:38,950 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:38,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:39,174 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,SelfDestructingSolverStorable30 [2021-12-15 08:57:39,174 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:39,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:39,175 INFO L85 PathProgramCache]: Analyzing trace with hash 686733613, now seen corresponding path program 1 times [2021-12-15 08:57:39,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:39,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273367179] [2021-12-15 08:57:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:39,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:39,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:39,293 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 2818 proven. 18 refuted. 0 times theorem prover too weak. 5471 trivial. 0 not checked. [2021-12-15 08:57:39,293 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:39,293 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273367179] [2021-12-15 08:57:39,293 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273367179] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:39,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279318365] [2021-12-15 08:57:39,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:39,294 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:39,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:39,295 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) [2021-12-15 08:57:39,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-12-15 08:57:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:39,534 INFO L263 TraceCheckSpWp]: Trace formula consists of 1315 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 08:57:39,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:40,484 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 723 proven. 0 refuted. 0 times theorem prover too weak. 7584 trivial. 0 not checked. [2021-12-15 08:57:40,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 08:57:40,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279318365] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 08:57:40,484 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2021-12-15 08:57:40,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2021-12-15 08:57:40,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201226067] [2021-12-15 08:57:40,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 08:57:40,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 08:57:40,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:40,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 08:57:40,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:40,486 INFO L87 Difference]: Start difference. First operand 12505 states and 16340 transitions. Second operand has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:40,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:40,657 INFO L93 Difference]: Finished difference Result 26026 states and 34040 transitions. [2021-12-15 08:57:40,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 08:57:40,657 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 897 [2021-12-15 08:57:40,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:40,681 INFO L225 Difference]: With dead ends: 26026 [2021-12-15 08:57:40,682 INFO L226 Difference]: Without dead ends: 13542 [2021-12-15 08:57:40,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 900 GetRequests, 897 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 08:57:40,696 INFO L933 BasicCegarLoop]: 188 mSDtfsCounter, 164 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 363 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:40,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [164 Valid, 363 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-15 08:57:40,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13542 states. [2021-12-15 08:57:40,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13542 to 13542. [2021-12-15 08:57:40,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13542 states, 13541 states have (on average 1.3086921202274573) internal successors, (17721), 13541 states have internal predecessors, (17721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:40,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13542 states to 13542 states and 17721 transitions. [2021-12-15 08:57:40,900 INFO L78 Accepts]: Start accepts. Automaton has 13542 states and 17721 transitions. Word has length 897 [2021-12-15 08:57:40,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:40,901 INFO L470 AbstractCegarLoop]: Abstraction has 13542 states and 17721 transitions. [2021-12-15 08:57:40,901 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 57.0) internal successors, (171), 3 states have internal predecessors, (171), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:40,902 INFO L276 IsEmpty]: Start isEmpty. Operand 13542 states and 17721 transitions. [2021-12-15 08:57:40,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 898 [2021-12-15 08:57:40,924 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 08:57:40,924 INFO L514 BasicCegarLoop]: trace histogram [26, 26, 26, 26, 26, 26, 26, 26, 26, 26, 25, 25, 25, 25, 25, 24, 24, 23, 23, 22, 22, 21, 21, 21, 21, 16, 15, 15, 14, 14, 13, 13, 8, 8, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:40,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:41,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:41,131 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 08:57:41,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 08:57:41,132 INFO L85 PathProgramCache]: Analyzing trace with hash -593966993, now seen corresponding path program 1 times [2021-12-15 08:57:41,132 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 08:57:41,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1934568744] [2021-12-15 08:57:41,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:41,132 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 08:57:41,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:41,264 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-12-15 08:57:41,265 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 08:57:41,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1934568744] [2021-12-15 08:57:41,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1934568744] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-15 08:57:41,265 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533133904] [2021-12-15 08:57:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 08:57:41,266 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 08:57:41,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 08:57:41,267 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) [2021-12-15 08:57:41,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-12-15 08:57:41,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 08:57:41,474 INFO L263 TraceCheckSpWp]: Trace formula consists of 1330 conjuncts, 3 conjunts are in the unsatisfiable core [2021-12-15 08:57:41,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 08:57:42,444 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-12-15 08:57:42,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-12-15 08:57:43,448 INFO L134 CoverageAnalysis]: Checked inductivity of 8307 backedges. 4844 proven. 26 refuted. 0 times theorem prover too weak. 3437 trivial. 0 not checked. [2021-12-15 08:57:43,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533133904] provided 0 perfect and 2 imperfect interpolant sequences [2021-12-15 08:57:43,449 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2021-12-15 08:57:43,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2021-12-15 08:57:43,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023623063] [2021-12-15 08:57:43,449 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2021-12-15 08:57:43,451 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-15 08:57:43,451 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 08:57:43,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-15 08:57:43,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-15 08:57:43,452 INFO L87 Difference]: Start difference. First operand 13542 states and 17721 transitions. Second operand has 8 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:44,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 08:57:44,099 INFO L93 Difference]: Finished difference Result 24100 states and 31844 transitions. [2021-12-15 08:57:44,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-15 08:57:44,100 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 897 [2021-12-15 08:57:44,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 08:57:44,101 INFO L225 Difference]: With dead ends: 24100 [2021-12-15 08:57:44,101 INFO L226 Difference]: Without dead ends: 0 [2021-12-15 08:57:44,114 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1804 GetRequests, 1794 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-12-15 08:57:44,114 INFO L933 BasicCegarLoop]: 302 mSDtfsCounter, 471 mSDsluCounter, 1065 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 471 SdHoareTripleChecker+Valid, 1367 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2021-12-15 08:57:44,115 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [471 Valid, 1367 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2021-12-15 08:57:44,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-12-15 08:57:44,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-12-15 08:57:44,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:44,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-12-15 08:57:44,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 897 [2021-12-15 08:57:44,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 08:57:44,116 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-12-15 08:57:44,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 46.5) internal successors, (372), 8 states have internal predecessors, (372), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 08:57:44,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-12-15 08:57:44,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-12-15 08:57:44,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 08:57:44,143 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-12-15 08:57:44,343 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,SelfDestructingSolverStorable32 [2021-12-15 08:57:44,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-12-15 08:57:47,908 INFO L858 garLoopResultBuilder]: For program point L564(lines 564 567) no Hoare annotation was computed. [2021-12-15 08:57:47,908 INFO L854 garLoopResultBuilder]: At program point L201(lines 197 622) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8656))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0))) [2021-12-15 08:57:47,909 INFO L854 garLoopResultBuilder]: At program point L168(lines 164 633) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,909 INFO L854 garLoopResultBuilder]: At program point L135(lines 134 643) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L102(lines 102 104) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L466(lines 466 478) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L367(lines 367 369) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L367-2(lines 364 373) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L335(lines 335 339) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L335-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L203(lines 203 620) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L170(lines 170 631) no Hoare annotation was computed. [2021-12-15 08:57:47,909 INFO L858 garLoopResultBuilder]: For program point L137(lines 137 642) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L854 garLoopResultBuilder]: At program point L402(lines 393 428) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L270(lines 270 272) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L237(lines 237 248) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L237-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L601(lines 601 607) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L601-1(lines 601 607) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L304(lines 304 308) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L304-2(lines 304 308) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L470(lines 470 472) no Hoare annotation was computed. [2021-12-15 08:57:47,910 INFO L858 garLoopResultBuilder]: For program point L470-2(lines 468 478) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L858 garLoopResultBuilder]: For program point L239(lines 239 242) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L858 garLoopResultBuilder]: For program point L206(lines 206 619) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L858 garLoopResultBuilder]: For program point L173(lines 173 630) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L858 garLoopResultBuilder]: For program point L140(lines 140 641) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L858 garLoopResultBuilder]: For program point L438(lines 438 440) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L858 garLoopResultBuilder]: For program point L405(lines 405 426) no Hoare annotation was computed. [2021-12-15 08:57:47,911 INFO L854 garLoopResultBuilder]: At program point L207(lines 203 620) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672)) (.cse1 (<= 8656 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 .cse1 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 12) (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) (and .cse0 .cse1 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)) (and .cse0 .cse1 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9)))) [2021-12-15 08:57:47,911 INFO L854 garLoopResultBuilder]: At program point L174(lines 170 631) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,912 INFO L861 garLoopResultBuilder]: At program point L670(lines 109 671) the Hoare annotation is: true [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L604(lines 604 606) no Hoare annotation was computed. [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L406(lines 406 412) no Hoare annotation was computed. [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L572(lines 572 586) no Hoare annotation was computed. [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L539(lines 539 542) no Hoare annotation was computed. [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L209(lines 209 618) no Hoare annotation was computed. [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L176(lines 176 629) no Hoare annotation was computed. [2021-12-15 08:57:47,912 INFO L858 garLoopResultBuilder]: For program point L143(lines 143 640) no Hoare annotation was computed. [2021-12-15 08:57:47,913 INFO L854 garLoopResultBuilder]: At program point L110-2(lines 110 669) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 12)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3)) (.cse1 (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) (.cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) (<= 8656 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse0 .cse1) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 8) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8608)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448) .cse2 .cse1) (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 7) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8592)) (and .cse3 .cse0 .cse2 .cse1) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6) (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 10) .cse3))) [2021-12-15 08:57:47,913 INFO L858 garLoopResultBuilder]: For program point L507(lines 507 525) no Hoare annotation was computed. [2021-12-15 08:57:47,913 INFO L858 garLoopResultBuilder]: For program point L243(lines 243 246) no Hoare annotation was computed. [2021-12-15 08:57:47,913 INFO L854 garLoopResultBuilder]: At program point L177(lines 176 629) the Hoare annotation is: (let ((.cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9)) (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 12) .cse0 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3) (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,913 INFO L854 garLoopResultBuilder]: At program point L144(lines 137 642) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,913 INFO L858 garLoopResultBuilder]: For program point L111(line 111) no Hoare annotation was computed. [2021-12-15 08:57:47,913 INFO L858 garLoopResultBuilder]: For program point L575(lines 575 585) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L344(lines 344 385) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L212(lines 212 617) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L179(lines 179 628) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L146(lines 146 639) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L113(lines 113 650) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L675(lines 675 677) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L675-2(lines 675 677) no Hoare annotation was computed. [2021-12-15 08:57:47,914 INFO L858 garLoopResultBuilder]: For program point L510(lines 510 524) no Hoare annotation was computed. [2021-12-15 08:57:47,915 INFO L854 garLoopResultBuilder]: At program point L213(lines 209 618) the Hoare annotation is: (let ((.cse0 (<= 8656 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 12) (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9)))) [2021-12-15 08:57:47,915 INFO L854 garLoopResultBuilder]: At program point L114(lines 113 650) the Hoare annotation is: (let ((.cse0 (<= 8656 |ULTIMATE.start_ssl3_accept_~s__state~0#1|))) (or (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)) (and .cse0 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9)))) [2021-12-15 08:57:47,915 INFO L858 garLoopResultBuilder]: For program point L544(lines 544 558) no Hoare annotation was computed. [2021-12-15 08:57:47,915 INFO L858 garLoopResultBuilder]: For program point L578(lines 578 584) no Hoare annotation was computed. [2021-12-15 08:57:47,915 INFO L858 garLoopResultBuilder]: For program point L446-1(lines 446 454) no Hoare annotation was computed. [2021-12-15 08:57:47,915 INFO L858 garLoopResultBuilder]: For program point L347(lines 347 384) no Hoare annotation was computed. [2021-12-15 08:57:47,915 INFO L858 garLoopResultBuilder]: For program point L347-1(lines 347 384) no Hoare annotation was computed. [2021-12-15 08:57:47,915 INFO L858 garLoopResultBuilder]: For program point L215(lines 215 616) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L182(lines 182 627) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L149(lines 149 638) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L116(lines 116 649) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L513(lines 513 523) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L854 garLoopResultBuilder]: At program point L414(lines 405 426) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L348(lines 348 381) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L315(lines 315 325) no Hoare annotation was computed. [2021-12-15 08:57:47,916 INFO L858 garLoopResultBuilder]: For program point L315-2(lines 315 325) no Hoare annotation was computed. [2021-12-15 08:57:47,917 INFO L861 garLoopResultBuilder]: At program point L216(lines 215 616) the Hoare annotation is: true [2021-12-15 08:57:47,917 INFO L854 garLoopResultBuilder]: At program point L183(lines 179 628) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,917 INFO L854 garLoopResultBuilder]: At program point L150(lines 146 639) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,917 INFO L858 garLoopResultBuilder]: For program point L547(lines 547 557) no Hoare annotation was computed. [2021-12-15 08:57:47,917 INFO L861 garLoopResultBuilder]: At program point L680(lines 22 682) the Hoare annotation is: true [2021-12-15 08:57:47,917 INFO L854 garLoopResultBuilder]: At program point L614(lines 110 669) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 12)) (.cse2 (= |ULTIMATE.start_ssl3_accept_~s__s3__tmp__next_state___0~0#1| 3)) (.cse1 (= |ULTIMATE.start_ssl3_accept_~s__hit~0#1| 0)) (.cse3 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 3))) (or (and (<= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8672) (<= 8656 |ULTIMATE.start_ssl3_accept_~s__state~0#1|) .cse0 .cse1) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 8) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8608)) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8448) .cse2 .cse1) (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 7) (= |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8592)) (and .cse3 .cse0 .cse2 .cse1) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6) (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 10) .cse3))) [2021-12-15 08:57:47,917 INFO L858 garLoopResultBuilder]: For program point L581(lines 581 583) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L581-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L449(lines 449 452) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L861 garLoopResultBuilder]: At program point L218(lines 217 616) the Hoare annotation is: true [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L185(lines 185 626) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L152(lines 152 637) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L119(lines 119 648) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L516(lines 516 522) no Hoare annotation was computed. [2021-12-15 08:57:47,918 INFO L858 garLoopResultBuilder]: For program point L483(lines 483 485) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L516-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L417(lines 417 419) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L483-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L417-2(lines 413 426) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L285(lines 285 287) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L285-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,919 INFO L858 garLoopResultBuilder]: For program point L550(lines 550 556) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L319(lines 319 321) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L319-2(lines 317 325) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L353(lines 353 379) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L254(lines 254 264) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L188(lines 188 625) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L155(lines 155 636) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L122(lines 122 647) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L651(lines 651 667) no Hoare annotation was computed. [2021-12-15 08:57:47,920 INFO L858 garLoopResultBuilder]: For program point L519(lines 519 521) no Hoare annotation was computed. [2021-12-15 08:57:47,921 INFO L858 garLoopResultBuilder]: For program point L255(lines 255 258) no Hoare annotation was computed. [2021-12-15 08:57:47,921 INFO L854 garLoopResultBuilder]: At program point L222(lines 116 649) the Hoare annotation is: (or (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)) [2021-12-15 08:57:47,921 INFO L854 garLoopResultBuilder]: At program point L189(lines 185 626) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 7) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,921 INFO L854 garLoopResultBuilder]: At program point L156(lines 152 637) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,921 INFO L858 garLoopResultBuilder]: For program point L652(lines 652 666) no Hoare annotation was computed. [2021-12-15 08:57:47,921 INFO L858 garLoopResultBuilder]: For program point L553(lines 553 555) no Hoare annotation was computed. [2021-12-15 08:57:47,921 INFO L854 garLoopResultBuilder]: At program point L520(lines 83 681) the Hoare annotation is: false [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L553-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L653(lines 653 658) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L653-2(lines 652 666) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L356(lines 356 360) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L356-2(lines 356 360) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L191(lines 191 624) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L158(lines 158 635) no Hoare annotation was computed. [2021-12-15 08:57:47,922 INFO L858 garLoopResultBuilder]: For program point L125(lines 125 646) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L93(lines 93 99) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L655(lines 655 657) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L227(lines 227 229) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L194(lines 194 623) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L161(lines 161 634) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L227-2(lines 227 229) no Hoare annotation was computed. [2021-12-15 08:57:47,923 INFO L858 garLoopResultBuilder]: For program point L128(lines 128 645) no Hoare annotation was computed. [2021-12-15 08:57:47,924 INFO L858 garLoopResultBuilder]: For program point L591(lines 591 595) no Hoare annotation was computed. [2021-12-15 08:57:47,924 INFO L858 garLoopResultBuilder]: For program point L591-2(lines 591 595) no Hoare annotation was computed. [2021-12-15 08:57:47,924 INFO L858 garLoopResultBuilder]: For program point L393(lines 393 428) no Hoare annotation was computed. [2021-12-15 08:57:47,924 INFO L854 garLoopResultBuilder]: At program point L195(lines 191 624) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 8) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,924 INFO L854 garLoopResultBuilder]: At program point L162(lines 158 635) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,924 INFO L858 garLoopResultBuilder]: For program point L96(lines 96 98) no Hoare annotation was computed. [2021-12-15 08:57:47,924 INFO L858 garLoopResultBuilder]: For program point L96-2(lines 93 99) no Hoare annotation was computed. [2021-12-15 08:57:47,924 INFO L858 garLoopResultBuilder]: For program point L460(lines 460 462) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point L394(lines 394 400) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point L460-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L861 garLoopResultBuilder]: At program point L692(lines 683 694) the Hoare annotation is: true [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point L197(lines 197 622) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point L164(lines 164 633) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point L131(lines 131 644) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2021-12-15 08:57:47,925 INFO L858 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 679) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L660(lines 660 664) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L495(lines 495 497) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L495-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L854 garLoopResultBuilder]: At program point L132(lines 128 645) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L529(lines 529 533) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L529-2(lines 529 533) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L364(lines 364 375) no Hoare annotation was computed. [2021-12-15 08:57:47,926 INFO L858 garLoopResultBuilder]: For program point L298(lines 298 300) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L232(lines 232 234) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L298-2(lines 219 613) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L854 garLoopResultBuilder]: At program point L365(lines 341 386) the Hoare annotation is: (let ((.cse0 (< |ULTIMATE.start_ssl3_accept_~s__state~0#1| 8640))) (or (and (<= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 5) .cse0) (and (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 9) .cse0) (and .cse0 (= |ULTIMATE.start_ssl3_accept_~blastFlag~0#1| 6)))) [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L200(lines 200 621) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L167(lines 167 632) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L134(lines 134 643) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L101(lines 101 105) no Hoare annotation was computed. [2021-12-15 08:57:47,927 INFO L858 garLoopResultBuilder]: For program point L101-1(lines 83 681) no Hoare annotation was computed. [2021-12-15 08:57:47,930 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 08:57:47,932 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 08:57:47,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 08:57:47 BoogieIcfgContainer [2021-12-15 08:57:47,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 08:57:47,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 08:57:47,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 08:57:47,951 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 08:57:47,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 08:57:21" (3/4) ... [2021-12-15 08:57:47,954 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-12-15 08:57:47,969 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2021-12-15 08:57:47,973 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2021-12-15 08:57:47,974 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-12-15 08:57:47,975 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-12-15 08:57:48,068 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-12-15 08:57:48,068 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 08:57:48,069 INFO L158 Benchmark]: Toolchain (without parser) took 27723.87ms. Allocated memory was 94.4MB in the beginning and 748.7MB in the end (delta: 654.3MB). Free memory was 64.8MB in the beginning and 300.0MB in the end (delta: -235.2MB). Peak memory consumption was 419.4MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,070 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 08:57:48,071 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.49ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 64.5MB in the beginning and 84.0MB in the end (delta: -19.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,073 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.64ms. Allocated memory is still 113.2MB. Free memory was 84.0MB in the beginning and 81.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,077 INFO L158 Benchmark]: Boogie Preprocessor took 53.68ms. Allocated memory is still 113.2MB. Free memory was 81.0MB in the beginning and 78.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,078 INFO L158 Benchmark]: RCFGBuilder took 594.37ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 78.2MB in the end (delta: 713.9kB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,080 INFO L158 Benchmark]: TraceAbstraction took 26567.21ms. Allocated memory was 113.2MB in the beginning and 748.7MB in the end (delta: 635.4MB). Free memory was 77.6MB in the beginning and 311.5MB in the end (delta: -233.9MB). Peak memory consumption was 536.7MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,080 INFO L158 Benchmark]: Witness Printer took 117.80ms. Allocated memory is still 748.7MB. Free memory was 311.5MB in the beginning and 300.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2021-12-15 08:57:48,081 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 94.4MB. Free memory is still 52.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.49ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 64.5MB in the beginning and 84.0MB in the end (delta: -19.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.64ms. Allocated memory is still 113.2MB. Free memory was 84.0MB in the beginning and 81.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.68ms. Allocated memory is still 113.2MB. Free memory was 81.0MB in the beginning and 78.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 594.37ms. Allocated memory is still 113.2MB. Free memory was 78.9MB in the beginning and 78.2MB in the end (delta: 713.9kB). Peak memory consumption was 26.0MB. Max. memory is 16.1GB. * TraceAbstraction took 26567.21ms. Allocated memory was 113.2MB in the beginning and 748.7MB in the end (delta: 635.4MB). Free memory was 77.6MB in the beginning and 311.5MB in the end (delta: -233.9MB). Peak memory consumption was 536.7MB. Max. memory is 16.1GB. * Witness Printer took 117.80ms. Allocated memory is still 748.7MB. Free memory was 311.5MB in the beginning and 300.0MB in the end (delta: 11.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 679]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 158 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 26.5s, OverallIterations: 33, TraceHistogramMax: 26, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 5.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.6s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3375 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3375 mSDsluCounter, 15031 SdHoareTripleChecker+Invalid, 2.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6148 mSDsCounter, 781 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3306 IncrementalHoareTripleChecker+Invalid, 4087 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 781 mSolverCounterUnsat, 8883 mSDtfsCounter, 3306 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7184 GetRequests, 7124 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13542occurred in iteration=32, InterpolantAutomatonStates: 105, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.4s AutomataMinimizationTime, 33 MinimizatonAttempts, 529 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 28 LocationsWithAnnotation, 28 PreInvPairs, 950 NumberOfFragments, 633 HoareAnnotationTreeSize, 28 FomulaSimplifications, 35969 FormulaSimplificationTreeSizeReduction, 2.3s HoareSimplificationTime, 28 FomulaSimplificationsInter, 4253 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 10.2s InterpolantComputationTime, 16498 NumberOfCodeBlocks, 16498 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 17351 ConstructedInterpolants, 0 QuantifiedInterpolants, 21203 SizeOfPredicates, 1 NumberOfNonLiveVariables, 9606 ConjunctsInSsa, 24 ConjunctsInUnsatCore, 44 InterpolantComputations, 32 PerfectInterpolantSequences, 104984/105272 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 683]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 164]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 134]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 215]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 12) && s__hit == 0) || blastFlag == 9) || (blastFlag == 8 && s__state == 8608)) || (((blastFlag <= 12 && s__state == 8448) && s__s3__tmp__next_state___0 == 3) && s__hit == 0)) || blastFlag <= 5) || (blastFlag == 7 && s__state == 8592)) || (((s__state == 3 && blastFlag <= 12) && s__s3__tmp__next_state___0 == 3) && s__hit == 0)) || blastFlag == 6) || (blastFlag <= 10 && s__state == 3) - InvariantResult [Line: 203]: Loop Invariant Derived loop invariant: (((((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 12) && s__hit == 0) || ((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 5)) || ((s__state <= 8672 && 8656 <= s__state) && blastFlag == 6)) || ((s__state <= 8672 && 8656 <= s__state) && blastFlag == 9) - InvariantResult [Line: 191]: Loop Invariant Derived loop invariant: (((blastFlag <= 5 && s__state < 8640) || (blastFlag == 8 && s__state < 8640)) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 137]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 83]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 217]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 110]: Loop Invariant Derived loop invariant: ((((((((((s__state <= 8672 && 8656 <= s__state) && blastFlag <= 12) && s__hit == 0) || blastFlag == 9) || (blastFlag == 8 && s__state == 8608)) || (((blastFlag <= 12 && s__state == 8448) && s__s3__tmp__next_state___0 == 3) && s__hit == 0)) || blastFlag <= 5) || (blastFlag == 7 && s__state == 8592)) || (((s__state == 3 && blastFlag <= 12) && s__s3__tmp__next_state___0 == 3) && s__hit == 0)) || blastFlag == 6) || (blastFlag <= 10 && s__state == 3) - InvariantResult [Line: 109]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: (blastFlag == 9 || blastFlag <= 5) || blastFlag == 6 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: ((8656 <= s__state && blastFlag == 6) || (8656 <= s__state && blastFlag <= 5)) || (8656 <= s__state && blastFlag == 9) - InvariantResult [Line: 341]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 393]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 176]: Loop Invariant Derived loop invariant: (((s__state == 8448 && blastFlag == 9) || (((blastFlag <= 12 && s__state == 8448) && s__s3__tmp__next_state___0 == 3) && s__hit == 0)) || (s__state == 8448 && blastFlag <= 5)) || (s__state == 8448 && blastFlag == 6) - InvariantResult [Line: 185]: Loop Invariant Derived loop invariant: (((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (blastFlag == 7 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 405]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 209]: Loop Invariant Derived loop invariant: ((((8656 <= s__state && blastFlag <= 12) && s__hit == 0) || (8656 <= s__state && blastFlag == 6)) || (8656 <= s__state && blastFlag <= 5)) || (8656 <= s__state && blastFlag == 9) - InvariantResult [Line: 128]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 152]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 170]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 179]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 146]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) - InvariantResult [Line: 197]: Loop Invariant Derived loop invariant: ((s__state <= 8656 && blastFlag == 6) || (blastFlag == 9 && s__state <= 8656)) || (blastFlag <= 5 && s__state <= 8656) - InvariantResult [Line: 158]: Loop Invariant Derived loop invariant: ((blastFlag <= 5 && s__state < 8640) || (blastFlag == 9 && s__state < 8640)) || (s__state < 8640 && blastFlag == 6) RESULT: Ultimate proved your program to be correct! [2021-12-15 08:57:48,134 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE