./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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/s3_srvr.blast.04.i.cil.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 77bf68ba948969a1221675397215385a80fe998a5bd74b2516bc1a677cd2e8b7 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:00:47,755 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:00:47,757 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:00:47,784 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:00:47,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:00:47,785 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:00:47,786 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:00:47,800 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:00:47,804 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:00:47,808 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:00:47,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:00:47,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:00:47,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:00:47,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:00:47,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:00:47,816 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:00:47,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:00:47,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:00:47,820 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:00:47,822 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:00:47,826 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:00:47,827 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:00:47,828 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:00:47,829 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:00:47,833 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:00:47,834 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:00:47,835 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:00:47,835 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:00:47,836 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:00:47,837 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:00:47,837 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:00:47,838 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:00:47,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:00:47,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:00:47,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:00:47,840 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:00:47,841 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:00:47,841 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:00:47,841 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:00:47,842 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:00:47,842 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:00:47,843 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-12-15 22:00:47,862 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:00:47,862 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:00:47,863 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:00:47,863 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:00:47,864 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:00:47,864 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:00:47,865 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:00:47,865 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:00:47,866 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:00:47,866 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:00:47,866 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:00:47,866 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 22:00:47,866 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:00:47,866 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:00:47,867 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:00:47,867 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:00:47,867 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:00:47,867 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:00:47,868 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:00:47,868 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:00:47,868 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:00:47,868 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:00:47,868 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:00:47,868 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:00:47,869 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:00:47,869 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:00:47,870 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:00:47,870 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:00:47,870 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 22:00:47,870 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-15 22:00:47,870 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:00:47,871 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:00:47,871 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:00:47,871 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:00:47,871 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bf68ba948969a1221675397215385a80fe998a5bd74b2516bc1a677cd2e8b7 [2021-12-15 22:00:48,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:00:48,138 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:00:48,140 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:00:48,141 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:00:48,142 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:00:48,143 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2021-12-15 22:00:48,191 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a87a2436/ae6b85def0f542ce92ba2e9c6652d7a9/FLAG16a51f474 [2021-12-15 22:00:48,673 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:00:48,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2021-12-15 22:00:48,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a87a2436/ae6b85def0f542ce92ba2e9c6652d7a9/FLAG16a51f474 [2021-12-15 22:00:48,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a87a2436/ae6b85def0f542ce92ba2e9c6652d7a9 [2021-12-15 22:00:48,714 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:00:48,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:00:48,718 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:00:48,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:00:48,721 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:00:48,722 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:00:48" (1/1) ... [2021-12-15 22:00:48,723 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63306e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:48, skipping insertion in model container [2021-12-15 22:00:48,723 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:00:48" (1/1) ... [2021-12-15 22:00:48,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:00:48,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:00:49,068 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/s3_srvr.blast.04.i.cil.c[72500,72513] [2021-12-15 22:00:49,080 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:00:49,088 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:00:49,213 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/s3_srvr.blast.04.i.cil.c[72500,72513] [2021-12-15 22:00:49,218 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:00:49,230 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:00:49,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49 WrapperNode [2021-12-15 22:00:49,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:00:49,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:00:49,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:00:49,232 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:00:49,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,306 INFO L137 Inliner]: procedures = 31, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 782 [2021-12-15 22:00:49,312 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:00:49,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:00:49,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:00:49,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:00:49,318 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,372 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,390 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,400 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,404 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:00:49,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:00:49,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:00:49,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:00:49,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (1/1) ... [2021-12-15 22:00:49,416 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:00:49,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:00:49,438 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 22:00:49,440 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 22:00:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:00:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 22:00:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-15 22:00:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-15 22:00:49,476 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 22:00:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 22:00:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 22:00:49,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:00:49,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:00:49,662 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:00:49,663 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:00:49,676 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 22:00:52,213 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-12-15 22:00:52,214 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-12-15 22:00:52,214 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:00:52,219 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:00:52,219 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:00:52,221 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:00:52 BoogieIcfgContainer [2021-12-15 22:00:52,221 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:00:52,223 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:00:52,223 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:00:52,225 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:00:52,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:00:48" (1/3) ... [2021-12-15 22:00:52,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb74f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:00:52, skipping insertion in model container [2021-12-15 22:00:52,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:00:49" (2/3) ... [2021-12-15 22:00:52,227 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb74f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:00:52, skipping insertion in model container [2021-12-15 22:00:52,227 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:00:52" (3/3) ... [2021-12-15 22:00:52,228 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.c [2021-12-15 22:00:52,232 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:00:52,232 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:00:52,260 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:00:52,264 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 22:00:52,265 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:00:52,275 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 143 states have (on average 1.7062937062937062) internal successors, (244), 144 states have internal predecessors, (244), 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 22:00:52,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-15 22:00:52,280 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:00:52,281 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:00:52,281 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:00:52,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:00:52,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1430118927, now seen corresponding path program 1 times [2021-12-15 22:00:52,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:00:52,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148638053] [2021-12-15 22:00:52,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:00:52,291 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:00:52,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:00:52,717 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 22:00:52,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:00:52,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148638053] [2021-12-15 22:00:52,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148638053] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:00:52,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:00:52,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:00:52,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140526420] [2021-12-15 22:00:52,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:00:52,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:00:52,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:00:52,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:00:52,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:00:52,753 INFO L87 Difference]: Start difference. First operand has 145 states, 143 states have (on average 1.7062937062937062) internal successors, (244), 144 states have internal predecessors, (244), 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 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 22:00:54,219 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.45s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:00:54,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:00:54,573 INFO L93 Difference]: Finished difference Result 315 states and 530 transitions. [2021-12-15 22:00:54,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:00:54,576 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 47 [2021-12-15 22:00:54,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:00:54,585 INFO L225 Difference]: With dead ends: 315 [2021-12-15 22:00:54,585 INFO L226 Difference]: Without dead ends: 160 [2021-12-15 22:00:54,587 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:00:54,607 INFO L933 BasicCegarLoop]: 214 mSDtfsCounter, 36 mSDsluCounter, 341 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 555 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2021-12-15 22:00:54,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 555 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2021-12-15 22:00:54,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-15 22:00:54,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 143. [2021-12-15 22:00:54,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.5422535211267605) internal successors, (219), 142 states have internal predecessors, (219), 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 22:00:54,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 219 transitions. [2021-12-15 22:00:54,656 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 219 transitions. Word has length 47 [2021-12-15 22:00:54,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:00:54,657 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 219 transitions. [2021-12-15 22:00:54,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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 22:00:54,657 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 219 transitions. [2021-12-15 22:00:54,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-12-15 22:00:54,659 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:00:54,659 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:00:54,659 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-15 22:00:54,659 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:00:54,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:00:54,660 INFO L85 PathProgramCache]: Analyzing trace with hash -1861384675, now seen corresponding path program 1 times [2021-12-15 22:00:54,660 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:00:54,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465180845] [2021-12-15 22:00:54,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:00:54,661 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:00:54,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:00:54,835 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:00:54,835 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:00:54,835 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465180845] [2021-12-15 22:00:54,835 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465180845] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:00:54,835 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:00:54,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:00:54,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468608053] [2021-12-15 22:00:54,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:00:54,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:00:54,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:00:54,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:00:54,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:00:54,837 INFO L87 Difference]: Start difference. First operand 143 states and 219 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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 22:00:56,169 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:00:56,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:00:56,392 INFO L93 Difference]: Finished difference Result 282 states and 426 transitions. [2021-12-15 22:00:56,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:00:56,393 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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 22:00:56,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:00:56,394 INFO L225 Difference]: With dead ends: 282 [2021-12-15 22:00:56,394 INFO L226 Difference]: Without dead ends: 160 [2021-12-15 22:00:56,394 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:00:56,395 INFO L933 BasicCegarLoop]: 175 mSDtfsCounter, 24 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 441 SdHoareTripleChecker+Invalid, 157 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2021-12-15 22:00:56,395 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [24 Valid, 441 Invalid, 157 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2021-12-15 22:00:56,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-15 22:00:56,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 143. [2021-12-15 22:00:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.5352112676056338) internal successors, (218), 142 states have internal predecessors, (218), 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 22:00:56,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 218 transitions. [2021-12-15 22:00:56,402 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 218 transitions. Word has length 60 [2021-12-15 22:00:56,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:00:56,402 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 218 transitions. [2021-12-15 22:00:56,402 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 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 22:00:56,403 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 218 transitions. [2021-12-15 22:00:56,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-15 22:00:56,411 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:00:56,414 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:00:56,415 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-15 22:00:56,415 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:00:56,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:00:56,415 INFO L85 PathProgramCache]: Analyzing trace with hash 2019107822, now seen corresponding path program 1 times [2021-12-15 22:00:56,415 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:00:56,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661812702] [2021-12-15 22:00:56,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:00:56,416 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:00:56,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:00:56,551 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:00:56,551 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:00:56,551 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661812702] [2021-12-15 22:00:56,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661812702] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:00:56,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:00:56,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:00:56,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263203680] [2021-12-15 22:00:56,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:00:56,553 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:00:56,553 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:00:56,553 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:00:56,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:00:56,554 INFO L87 Difference]: Start difference. First operand 143 states and 218 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:00:58,567 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:00:58,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:00:58,755 INFO L93 Difference]: Finished difference Result 281 states and 424 transitions. [2021-12-15 22:00:58,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:00:58,756 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2021-12-15 22:00:58,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:00:58,757 INFO L225 Difference]: With dead ends: 281 [2021-12-15 22:00:58,757 INFO L226 Difference]: Without dead ends: 159 [2021-12-15 22:00:58,757 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:00:58,758 INFO L933 BasicCegarLoop]: 176 mSDtfsCounter, 28 mSDsluCounter, 267 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:00:58,758 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [28 Valid, 443 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 146 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:00:58,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 159 states. [2021-12-15 22:00:58,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 159 to 143. [2021-12-15 22:00:58,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 1.528169014084507) internal successors, (217), 142 states have internal predecessors, (217), 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 22:00:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 217 transitions. [2021-12-15 22:00:58,765 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 217 transitions. Word has length 61 [2021-12-15 22:00:58,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:00:58,766 INFO L470 AbstractCegarLoop]: Abstraction has 143 states and 217 transitions. [2021-12-15 22:00:58,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:00:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 217 transitions. [2021-12-15 22:00:58,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-15 22:00:58,767 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:00:58,767 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:00:58,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-15 22:00:58,767 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:00:58,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:00:58,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1437848702, now seen corresponding path program 1 times [2021-12-15 22:00:58,768 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:00:58,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652214885] [2021-12-15 22:00:58,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:00:58,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:00:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:00:58,839 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:00:58,839 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:00:58,840 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652214885] [2021-12-15 22:00:58,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652214885] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:00:58,840 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:00:58,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:00:58,840 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304371717] [2021-12-15 22:00:58,840 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:00:58,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:00:58,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:00:58,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:00:58,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:00:58,842 INFO L87 Difference]: Start difference. First operand 143 states and 217 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:01:00,855 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:01,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:01,160 INFO L93 Difference]: Finished difference Result 378 states and 577 transitions. [2021-12-15 22:01:01,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:01,161 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2021-12-15 22:01:01,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:01,162 INFO L225 Difference]: With dead ends: 378 [2021-12-15 22:01:01,162 INFO L226 Difference]: Without dead ends: 256 [2021-12-15 22:01:01,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:01,163 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 139 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:01,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [139 Valid, 300 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:01,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-12-15 22:01:01,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 155. [2021-12-15 22:01:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.5194805194805194) internal successors, (234), 154 states have internal predecessors, (234), 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 22:01:01,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 234 transitions. [2021-12-15 22:01:01,172 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 234 transitions. Word has length 61 [2021-12-15 22:01:01,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:01,173 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 234 transitions. [2021-12-15 22:01:01,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:01:01,173 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 234 transitions. [2021-12-15 22:01:01,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-15 22:01:01,174 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:01,174 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 22:01:01,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-15 22:01:01,174 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:01,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:01,175 INFO L85 PathProgramCache]: Analyzing trace with hash 16682137, now seen corresponding path program 1 times [2021-12-15 22:01:01,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:01,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389944356] [2021-12-15 22:01:01,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:01,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:01,282 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:01,282 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:01,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389944356] [2021-12-15 22:01:01,283 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [389944356] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:01,283 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:01,283 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:01,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207994424] [2021-12-15 22:01:01,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:01,284 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:01,284 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:01,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:01,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:01,285 INFO L87 Difference]: Start difference. First operand 155 states and 234 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:01:03,299 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:03,609 INFO L93 Difference]: Finished difference Result 304 states and 457 transitions. [2021-12-15 22:01:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:03,610 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2021-12-15 22:01:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:03,611 INFO L225 Difference]: With dead ends: 304 [2021-12-15 22:01:03,611 INFO L226 Difference]: Without dead ends: 170 [2021-12-15 22:01:03,611 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:03,612 INFO L933 BasicCegarLoop]: 177 mSDtfsCounter, 19 mSDsluCounter, 268 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:03,612 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 445 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 144 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:03,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2021-12-15 22:01:03,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 155. [2021-12-15 22:01:03,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.5129870129870129) internal successors, (233), 154 states have internal predecessors, (233), 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 22:01:03,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 233 transitions. [2021-12-15 22:01:03,622 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 233 transitions. Word has length 61 [2021-12-15 22:01:03,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:03,622 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 233 transitions. [2021-12-15 22:01:03,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:01:03,622 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 233 transitions. [2021-12-15 22:01:03,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2021-12-15 22:01:03,623 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:03,623 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 22:01:03,623 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-15 22:01:03,623 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:03,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:03,624 INFO L85 PathProgramCache]: Analyzing trace with hash -932666023, now seen corresponding path program 1 times [2021-12-15 22:01:03,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:03,624 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201188362] [2021-12-15 22:01:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:03,624 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:03,754 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:03,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:03,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201188362] [2021-12-15 22:01:03,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201188362] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:03,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:03,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:03,756 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815750356] [2021-12-15 22:01:03,756 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:03,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:03,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:03,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:03,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:03,757 INFO L87 Difference]: Start difference. First operand 155 states and 233 transitions. Second operand has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:01:05,762 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:05,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:05,930 INFO L93 Difference]: Finished difference Result 302 states and 454 transitions. [2021-12-15 22:01:05,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:05,931 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 61 [2021-12-15 22:01:05,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:05,932 INFO L225 Difference]: With dead ends: 302 [2021-12-15 22:01:05,932 INFO L226 Difference]: Without dead ends: 168 [2021-12-15 22:01:05,932 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:05,932 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 19 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:05,933 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 449 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:01:05,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-12-15 22:01:05,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 155. [2021-12-15 22:01:05,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.5064935064935066) internal successors, (232), 154 states have internal predecessors, (232), 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 22:01:05,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 232 transitions. [2021-12-15 22:01:05,938 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 232 transitions. Word has length 61 [2021-12-15 22:01:05,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:05,938 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 232 transitions. [2021-12-15 22:01:05,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 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 22:01:05,939 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 232 transitions. [2021-12-15 22:01:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-12-15 22:01:05,939 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:05,939 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 22:01:05,939 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-15 22:01:05,940 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:05,940 INFO L85 PathProgramCache]: Analyzing trace with hash 1300462214, now seen corresponding path program 1 times [2021-12-15 22:01:05,940 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:05,940 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982638503] [2021-12-15 22:01:05,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:05,940 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:05,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:06,009 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:06,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:06,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982638503] [2021-12-15 22:01:06,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982638503] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:06,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:06,010 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:06,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355974926] [2021-12-15 22:01:06,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:06,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:06,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:06,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:06,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:06,011 INFO L87 Difference]: Start difference. First operand 155 states and 232 transitions. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 22:01:08,019 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:08,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:08,269 INFO L93 Difference]: Finished difference Result 302 states and 453 transitions. [2021-12-15 22:01:08,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:08,269 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 62 [2021-12-15 22:01:08,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:08,270 INFO L225 Difference]: With dead ends: 302 [2021-12-15 22:01:08,270 INFO L226 Difference]: Without dead ends: 168 [2021-12-15 22:01:08,270 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:08,272 INFO L933 BasicCegarLoop]: 179 mSDtfsCounter, 22 mSDsluCounter, 270 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 449 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:08,273 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 449 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 140 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:01:08,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2021-12-15 22:01:08,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 155. [2021-12-15 22:01:08,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.5) internal successors, (231), 154 states have internal predecessors, (231), 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 22:01:08,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 231 transitions. [2021-12-15 22:01:08,286 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 231 transitions. Word has length 62 [2021-12-15 22:01:08,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:08,286 INFO L470 AbstractCegarLoop]: Abstraction has 155 states and 231 transitions. [2021-12-15 22:01:08,286 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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 22:01:08,287 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 231 transitions. [2021-12-15 22:01:08,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2021-12-15 22:01:08,287 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:08,287 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 22:01:08,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-15 22:01:08,287 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:08,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:08,288 INFO L85 PathProgramCache]: Analyzing trace with hash 249957895, now seen corresponding path program 1 times [2021-12-15 22:01:08,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:08,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958157726] [2021-12-15 22:01:08,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:08,288 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:08,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:08,407 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:08,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958157726] [2021-12-15 22:01:08,407 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958157726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:08,407 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:08,407 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:08,407 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229766885] [2021-12-15 22:01:08,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:08,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:08,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:08,408 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:08,408 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:08,410 INFO L87 Difference]: Start difference. First operand 155 states and 231 transitions. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 22:01:10,418 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:10,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:10,712 INFO L93 Difference]: Finished difference Result 390 states and 590 transitions. [2021-12-15 22:01:10,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:10,714 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 63 [2021-12-15 22:01:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:10,714 INFO L225 Difference]: With dead ends: 390 [2021-12-15 22:01:10,714 INFO L226 Difference]: Without dead ends: 256 [2021-12-15 22:01:10,715 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:10,715 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 136 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 62 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:10,715 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 300 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:10,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-12-15 22:01:10,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 157. [2021-12-15 22:01:10,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.4935897435897436) internal successors, (233), 156 states have internal predecessors, (233), 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 22:01:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 233 transitions. [2021-12-15 22:01:10,719 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 233 transitions. Word has length 63 [2021-12-15 22:01:10,719 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:10,719 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 233 transitions. [2021-12-15 22:01:10,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 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 22:01:10,719 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 233 transitions. [2021-12-15 22:01:10,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-15 22:01:10,720 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:10,720 INFO L514 BasicCegarLoop]: trace histogram [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] [2021-12-15 22:01:10,720 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-15 22:01:10,720 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:10,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:10,720 INFO L85 PathProgramCache]: Analyzing trace with hash 2005265579, now seen corresponding path program 1 times [2021-12-15 22:01:10,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:10,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158134453] [2021-12-15 22:01:10,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:10,721 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:10,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:10,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:10,843 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158134453] [2021-12-15 22:01:10,843 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158134453] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:10,843 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:10,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:10,844 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274872068] [2021-12-15 22:01:10,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:10,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:10,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:10,854 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:10,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:10,854 INFO L87 Difference]: Start difference. First operand 157 states and 233 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 22:01:11,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:11,237 INFO L93 Difference]: Finished difference Result 296 states and 444 transitions. [2021-12-15 22:01:11,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:11,238 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2021-12-15 22:01:11,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:11,239 INFO L225 Difference]: With dead ends: 296 [2021-12-15 22:01:11,239 INFO L226 Difference]: Without dead ends: 160 [2021-12-15 22:01:11,239 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:11,241 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 11 mSDsluCounter, 277 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:11,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [11 Valid, 463 Invalid, 129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2021-12-15 22:01:11,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2021-12-15 22:01:11,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 157. [2021-12-15 22:01:11,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 157 states, 156 states have (on average 1.4871794871794872) internal successors, (232), 156 states have internal predecessors, (232), 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 22:01:11,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 232 transitions. [2021-12-15 22:01:11,246 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 232 transitions. Word has length 64 [2021-12-15 22:01:11,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:11,246 INFO L470 AbstractCegarLoop]: Abstraction has 157 states and 232 transitions. [2021-12-15 22:01:11,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 22:01:11,246 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 232 transitions. [2021-12-15 22:01:11,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-15 22:01:11,247 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:11,247 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, 1, 1, 1, 1] [2021-12-15 22:01:11,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-15 22:01:11,247 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:11,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:11,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1889550317, now seen corresponding path program 1 times [2021-12-15 22:01:11,248 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:11,248 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541460469] [2021-12-15 22:01:11,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:11,248 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:11,357 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 22:01:11,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:11,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541460469] [2021-12-15 22:01:11,358 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541460469] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:11,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:11,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:11,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076833442] [2021-12-15 22:01:11,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:11,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:11,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:11,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:11,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:11,359 INFO L87 Difference]: Start difference. First operand 157 states and 232 transitions. Second operand has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 22:01:13,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:13,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:13,661 INFO L93 Difference]: Finished difference Result 406 states and 611 transitions. [2021-12-15 22:01:13,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:13,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 64 [2021-12-15 22:01:13,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:13,663 INFO L225 Difference]: With dead ends: 406 [2021-12-15 22:01:13,663 INFO L226 Difference]: Without dead ends: 270 [2021-12-15 22:01:13,663 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:13,664 INFO L933 BasicCegarLoop]: 105 mSDtfsCounter, 106 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 262 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 106 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 262 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:13,664 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [106 Valid, 301 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 262 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:13,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2021-12-15 22:01:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 200. [2021-12-15 22:01:13,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 1.5577889447236182) internal successors, (310), 199 states have internal predecessors, (310), 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 22:01:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 310 transitions. [2021-12-15 22:01:13,668 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 310 transitions. Word has length 64 [2021-12-15 22:01:13,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:13,668 INFO L470 AbstractCegarLoop]: Abstraction has 200 states and 310 transitions. [2021-12-15 22:01:13,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.0) internal successors, (64), 4 states have internal predecessors, (64), 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 22:01:13,668 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 310 transitions. [2021-12-15 22:01:13,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-12-15 22:01:13,669 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:13,669 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, 1, 1, 1, 1, 1] [2021-12-15 22:01:13,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-15 22:01:13,669 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:13,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:13,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1546297802, now seen corresponding path program 1 times [2021-12-15 22:01:13,669 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:13,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139768914] [2021-12-15 22:01:13,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:13,669 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:13,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:13,753 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 22:01:13,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:13,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139768914] [2021-12-15 22:01:13,753 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139768914] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:13,753 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:13,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:13,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450729883] [2021-12-15 22:01:13,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:13,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:13,755 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:13,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:13,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:13,756 INFO L87 Difference]: Start difference. First operand 200 states and 310 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 22:01:15,767 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:16,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:16,071 INFO L93 Difference]: Finished difference Result 478 states and 746 transitions. [2021-12-15 22:01:16,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:16,071 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 65 [2021-12-15 22:01:16,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:16,073 INFO L225 Difference]: With dead ends: 478 [2021-12-15 22:01:16,073 INFO L226 Difference]: Without dead ends: 297 [2021-12-15 22:01:16,073 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:16,074 INFO L933 BasicCegarLoop]: 111 mSDtfsCounter, 107 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 261 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 322 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 261 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:16,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 312 Invalid, 322 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 261 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:16,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2021-12-15 22:01:16,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 228. [2021-12-15 22:01:16,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 227 states have (on average 1.6079295154185023) internal successors, (365), 227 states have internal predecessors, (365), 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 22:01:16,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 365 transitions. [2021-12-15 22:01:16,078 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 365 transitions. Word has length 65 [2021-12-15 22:01:16,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:16,079 INFO L470 AbstractCegarLoop]: Abstraction has 228 states and 365 transitions. [2021-12-15 22:01:16,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 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 22:01:16,079 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 365 transitions. [2021-12-15 22:01:16,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-12-15 22:01:16,082 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:16,082 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 22:01:16,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-15 22:01:16,083 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:16,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:16,083 INFO L85 PathProgramCache]: Analyzing trace with hash -2039258828, now seen corresponding path program 1 times [2021-12-15 22:01:16,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:16,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299549066] [2021-12-15 22:01:16,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:16,084 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:16,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:16,174 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:16,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:16,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299549066] [2021-12-15 22:01:16,175 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299549066] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:16,175 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:16,175 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:16,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1358105726] [2021-12-15 22:01:16,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:16,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:16,176 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:16,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:16,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:16,176 INFO L87 Difference]: Start difference. First operand 228 states and 365 transitions. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 22:01:18,195 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:18,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:18,472 INFO L93 Difference]: Finished difference Result 543 states and 869 transitions. [2021-12-15 22:01:18,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:18,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 93 [2021-12-15 22:01:18,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:18,473 INFO L225 Difference]: With dead ends: 543 [2021-12-15 22:01:18,473 INFO L226 Difference]: Without dead ends: 336 [2021-12-15 22:01:18,474 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:18,474 INFO L933 BasicCegarLoop]: 112 mSDtfsCounter, 115 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 49 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 314 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:18,474 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [115 Valid, 314 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 254 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:18,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 336 states. [2021-12-15 22:01:18,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 336 to 260. [2021-12-15 22:01:18,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 1.6216216216216217) internal successors, (420), 259 states have internal predecessors, (420), 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 22:01:18,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 420 transitions. [2021-12-15 22:01:18,479 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 420 transitions. Word has length 93 [2021-12-15 22:01:18,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:18,479 INFO L470 AbstractCegarLoop]: Abstraction has 260 states and 420 transitions. [2021-12-15 22:01:18,480 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 22:01:18,480 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 420 transitions. [2021-12-15 22:01:18,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-12-15 22:01:18,480 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:18,480 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:01:18,480 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-15 22:01:18,481 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:18,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:18,481 INFO L85 PathProgramCache]: Analyzing trace with hash -709781834, now seen corresponding path program 1 times [2021-12-15 22:01:18,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:18,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099418703] [2021-12-15 22:01:18,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:18,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:18,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:18,577 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 22:01:18,577 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:18,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099418703] [2021-12-15 22:01:18,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099418703] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:18,578 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:18,578 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:18,578 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086587050] [2021-12-15 22:01:18,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:18,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:18,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:18,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:18,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:18,579 INFO L87 Difference]: Start difference. First operand 260 states and 420 transitions. Second operand has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:01:20,591 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:20,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:20,885 INFO L93 Difference]: Finished difference Result 612 states and 984 transitions. [2021-12-15 22:01:20,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:20,886 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2021-12-15 22:01:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:20,887 INFO L225 Difference]: With dead ends: 612 [2021-12-15 22:01:20,887 INFO L226 Difference]: Without dead ends: 373 [2021-12-15 22:01:20,887 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:20,888 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 107 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 57 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:20,888 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [107 Valid, 318 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 263 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373 states. [2021-12-15 22:01:20,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373 to 303. [2021-12-15 22:01:20,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 303 states, 302 states have (on average 1.6357615894039734) internal successors, (494), 302 states have internal predecessors, (494), 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 22:01:20,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 494 transitions. [2021-12-15 22:01:20,893 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 494 transitions. Word has length 105 [2021-12-15 22:01:20,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:20,893 INFO L470 AbstractCegarLoop]: Abstraction has 303 states and 494 transitions. [2021-12-15 22:01:20,893 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.25) internal successors, (105), 4 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:01:20,893 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 494 transitions. [2021-12-15 22:01:20,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-15 22:01:20,894 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:20,894 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 22:01:20,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-15 22:01:20,894 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:20,894 INFO L85 PathProgramCache]: Analyzing trace with hash 122955886, now seen corresponding path program 1 times [2021-12-15 22:01:20,895 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:20,895 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244400746] [2021-12-15 22:01:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:20,895 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:20,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 79 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-15 22:01:20,975 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:20,975 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244400746] [2021-12-15 22:01:20,975 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244400746] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:20,975 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:20,975 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:20,975 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937770669] [2021-12-15 22:01:20,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:20,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:20,976 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:20,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:20,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:20,976 INFO L87 Difference]: Start difference. First operand 303 states and 494 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:01:22,991 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:23,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:23,327 INFO L93 Difference]: Finished difference Result 696 states and 1129 transitions. [2021-12-15 22:01:23,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:23,327 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2021-12-15 22:01:23,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:23,329 INFO L225 Difference]: With dead ends: 696 [2021-12-15 22:01:23,329 INFO L226 Difference]: Without dead ends: 414 [2021-12-15 22:01:23,329 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:23,329 INFO L933 BasicCegarLoop]: 106 mSDtfsCounter, 132 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 260 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 260 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:23,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 302 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 260 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:23,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2021-12-15 22:01:23,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 319. [2021-12-15 22:01:23,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 319 states, 318 states have (on average 1.619496855345912) internal successors, (515), 318 states have internal predecessors, (515), 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 22:01:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 515 transitions. [2021-12-15 22:01:23,336 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 515 transitions. Word has length 106 [2021-12-15 22:01:23,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:23,337 INFO L470 AbstractCegarLoop]: Abstraction has 319 states and 515 transitions. [2021-12-15 22:01:23,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:01:23,337 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 515 transitions. [2021-12-15 22:01:23,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-12-15 22:01:23,338 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:23,338 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:01:23,338 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-15 22:01:23,338 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:23,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:23,339 INFO L85 PathProgramCache]: Analyzing trace with hash 213335615, now seen corresponding path program 1 times [2021-12-15 22:01:23,339 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:23,339 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26934327] [2021-12-15 22:01:23,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:23,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:23,434 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-12-15 22:01:23,434 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:23,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26934327] [2021-12-15 22:01:23,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [26934327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:23,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:23,435 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:23,435 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921040725] [2021-12-15 22:01:23,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:23,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:23,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:23,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:23,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:23,436 INFO L87 Difference]: Start difference. First operand 319 states and 515 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 22:01:25,447 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:25,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:25,641 INFO L93 Difference]: Finished difference Result 660 states and 1068 transitions. [2021-12-15 22:01:25,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:25,642 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 106 [2021-12-15 22:01:25,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:25,643 INFO L225 Difference]: With dead ends: 660 [2021-12-15 22:01:25,643 INFO L226 Difference]: Without dead ends: 362 [2021-12-15 22:01:25,644 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:25,644 INFO L933 BasicCegarLoop]: 182 mSDtfsCounter, 31 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 167 mSolverCounterSat, 9 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 167 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:25,644 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [31 Valid, 461 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 167 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:01:25,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2021-12-15 22:01:25,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 341. [2021-12-15 22:01:25,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.6176470588235294) internal successors, (550), 340 states have internal predecessors, (550), 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 22:01:25,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 550 transitions. [2021-12-15 22:01:25,650 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 550 transitions. Word has length 106 [2021-12-15 22:01:25,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:25,650 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 550 transitions. [2021-12-15 22:01:25,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 22:01:25,650 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 550 transitions. [2021-12-15 22:01:25,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2021-12-15 22:01:25,651 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:25,651 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2021-12-15 22:01:25,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-15 22:01:25,654 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:25,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:25,655 INFO L85 PathProgramCache]: Analyzing trace with hash 427331882, now seen corresponding path program 1 times [2021-12-15 22:01:25,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:25,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389202501] [2021-12-15 22:01:25,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:25,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:25,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:25,735 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2021-12-15 22:01:25,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:25,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389202501] [2021-12-15 22:01:25,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389202501] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:25,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:25,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:25,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858277699] [2021-12-15 22:01:25,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:25,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:25,737 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:25,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:25,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:25,737 INFO L87 Difference]: Start difference. First operand 341 states and 550 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 22:01:27,743 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:27,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:27,926 INFO L93 Difference]: Finished difference Result 680 states and 1100 transitions. [2021-12-15 22:01:27,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:27,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 107 [2021-12-15 22:01:27,926 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:27,927 INFO L225 Difference]: With dead ends: 680 [2021-12-15 22:01:27,927 INFO L226 Difference]: Without dead ends: 360 [2021-12-15 22:01:27,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:27,928 INFO L933 BasicCegarLoop]: 185 mSDtfsCounter, 35 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 8 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 465 SdHoareTripleChecker+Invalid, 171 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:27,928 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [35 Valid, 465 Invalid, 171 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 162 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:01:27,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2021-12-15 22:01:27,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 341. [2021-12-15 22:01:27,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.6147058823529412) internal successors, (549), 340 states have internal predecessors, (549), 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 22:01:27,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 549 transitions. [2021-12-15 22:01:27,935 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 549 transitions. Word has length 107 [2021-12-15 22:01:27,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:27,935 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 549 transitions. [2021-12-15 22:01:27,935 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 4 states have internal predecessors, (81), 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 22:01:27,935 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 549 transitions. [2021-12-15 22:01:27,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-15 22:01:27,936 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:27,936 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-15 22:01:27,936 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-15 22:01:27,936 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:27,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:27,937 INFO L85 PathProgramCache]: Analyzing trace with hash 1864076429, now seen corresponding path program 1 times [2021-12-15 22:01:27,937 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:27,937 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209293038] [2021-12-15 22:01:27,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:27,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:27,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:28,024 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-15 22:01:28,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:28,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209293038] [2021-12-15 22:01:28,025 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209293038] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:28,025 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:28,025 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:28,025 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256918922] [2021-12-15 22:01:28,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:28,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:28,026 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:28,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:28,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:28,027 INFO L87 Difference]: Start difference. First operand 341 states and 549 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 22:01:30,053 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:30,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:30,242 INFO L93 Difference]: Finished difference Result 679 states and 1097 transitions. [2021-12-15 22:01:30,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:30,243 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 120 [2021-12-15 22:01:30,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:30,244 INFO L225 Difference]: With dead ends: 679 [2021-12-15 22:01:30,244 INFO L226 Difference]: Without dead ends: 359 [2021-12-15 22:01:30,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:30,245 INFO L933 BasicCegarLoop]: 186 mSDtfsCounter, 40 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 467 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:30,245 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [40 Valid, 467 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 160 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:01:30,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2021-12-15 22:01:30,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 341. [2021-12-15 22:01:30,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.611764705882353) internal successors, (548), 340 states have internal predecessors, (548), 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 22:01:30,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 548 transitions. [2021-12-15 22:01:30,250 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 548 transitions. Word has length 120 [2021-12-15 22:01:30,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:30,250 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 548 transitions. [2021-12-15 22:01:30,251 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 22:01:30,251 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 548 transitions. [2021-12-15 22:01:30,252 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2021-12-15 22:01:30,252 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:30,252 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 22:01:30,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-15 22:01:30,252 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:30,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:30,253 INFO L85 PathProgramCache]: Analyzing trace with hash 378996041, now seen corresponding path program 1 times [2021-12-15 22:01:30,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:30,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805662682] [2021-12-15 22:01:30,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:30,253 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:30,328 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 58 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2021-12-15 22:01:30,328 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:30,328 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805662682] [2021-12-15 22:01:30,328 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805662682] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:30,328 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:30,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:30,329 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546175520] [2021-12-15 22:01:30,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:30,329 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:30,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:30,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:30,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:30,330 INFO L87 Difference]: Start difference. First operand 341 states and 548 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 22:01:32,343 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:32,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:32,619 INFO L93 Difference]: Finished difference Result 729 states and 1162 transitions. [2021-12-15 22:01:32,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:32,619 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 120 [2021-12-15 22:01:32,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:32,621 INFO L225 Difference]: With dead ends: 729 [2021-12-15 22:01:32,621 INFO L226 Difference]: Without dead ends: 409 [2021-12-15 22:01:32,621 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:32,622 INFO L933 BasicCegarLoop]: 114 mSDtfsCounter, 130 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 60 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:32,622 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [130 Valid, 318 Invalid, 318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 257 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:32,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-15 22:01:32,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 341. [2021-12-15 22:01:32,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.5970588235294119) internal successors, (543), 340 states have internal predecessors, (543), 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 22:01:32,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 543 transitions. [2021-12-15 22:01:32,627 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 543 transitions. Word has length 120 [2021-12-15 22:01:32,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:32,628 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 543 transitions. [2021-12-15 22:01:32,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 4 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 22:01:32,628 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 543 transitions. [2021-12-15 22:01:32,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2021-12-15 22:01:32,629 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:32,629 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-15 22:01:32,629 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-15 22:01:32,629 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:32,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:32,630 INFO L85 PathProgramCache]: Analyzing trace with hash -1084989027, now seen corresponding path program 1 times [2021-12-15 22:01:32,630 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:32,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993044495] [2021-12-15 22:01:32,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:32,630 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:32,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:32,735 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-15 22:01:32,736 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:32,736 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993044495] [2021-12-15 22:01:32,736 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993044495] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:32,736 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:32,736 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:32,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274617182] [2021-12-15 22:01:32,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:32,737 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:32,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:32,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:32,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:32,738 INFO L87 Difference]: Start difference. First operand 341 states and 543 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 22:01:34,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:34,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:34,977 INFO L93 Difference]: Finished difference Result 678 states and 1084 transitions. [2021-12-15 22:01:34,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:34,978 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 121 [2021-12-15 22:01:34,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:34,979 INFO L225 Difference]: With dead ends: 678 [2021-12-15 22:01:34,979 INFO L226 Difference]: Without dead ends: 358 [2021-12-15 22:01:34,979 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:34,980 INFO L933 BasicCegarLoop]: 187 mSDtfsCounter, 36 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 469 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:34,980 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [36 Valid, 469 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 158 Invalid, 1 Unknown, 0 Unchecked, 2.2s Time] [2021-12-15 22:01:34,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2021-12-15 22:01:34,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 341. [2021-12-15 22:01:34,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.5941176470588236) internal successors, (542), 340 states have internal predecessors, (542), 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 22:01:34,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 542 transitions. [2021-12-15 22:01:34,987 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 542 transitions. Word has length 121 [2021-12-15 22:01:34,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:34,987 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 542 transitions. [2021-12-15 22:01:34,987 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 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 22:01:34,988 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 542 transitions. [2021-12-15 22:01:34,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2021-12-15 22:01:34,988 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:34,988 INFO L514 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 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] [2021-12-15 22:01:34,989 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-15 22:01:34,989 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:34,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:34,989 INFO L85 PathProgramCache]: Analyzing trace with hash -578312574, now seen corresponding path program 1 times [2021-12-15 22:01:34,989 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:34,989 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365139316] [2021-12-15 22:01:34,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:34,990 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:35,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:35,062 INFO L134 CoverageAnalysis]: Checked inductivity of 116 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2021-12-15 22:01:35,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:35,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365139316] [2021-12-15 22:01:35,063 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [365139316] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:35,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:35,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 22:01:35,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105144196] [2021-12-15 22:01:35,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:35,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-15 22:01:35,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:35,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-15 22:01:35,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-15 22:01:35,065 INFO L87 Difference]: Start difference. First operand 341 states and 542 transitions. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 22:01:37,070 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:37,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:37,348 INFO L93 Difference]: Finished difference Result 729 states and 1150 transitions. [2021-12-15 22:01:37,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-12-15 22:01:37,348 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 123 [2021-12-15 22:01:37,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:37,349 INFO L225 Difference]: With dead ends: 729 [2021-12-15 22:01:37,349 INFO L226 Difference]: Without dead ends: 409 [2021-12-15 22:01:37,350 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:37,350 INFO L933 BasicCegarLoop]: 107 mSDtfsCounter, 132 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 61 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 132 SdHoareTripleChecker+Valid, 304 SdHoareTripleChecker+Invalid, 319 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:37,351 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [132 Valid, 304 Invalid, 319 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 257 Invalid, 1 Unknown, 0 Unchecked, 2.3s Time] [2021-12-15 22:01:37,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 409 states. [2021-12-15 22:01:37,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 409 to 341. [2021-12-15 22:01:37,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.576470588235294) internal successors, (536), 340 states have internal predecessors, (536), 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 22:01:37,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 536 transitions. [2021-12-15 22:01:37,356 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 536 transitions. Word has length 123 [2021-12-15 22:01:37,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:37,356 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 536 transitions. [2021-12-15 22:01:37,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 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 22:01:37,356 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 536 transitions. [2021-12-15 22:01:37,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 22:01:37,357 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:37,357 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 22:01:37,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-12-15 22:01:37,358 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:37,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:37,358 INFO L85 PathProgramCache]: Analyzing trace with hash -1128276771, now seen corresponding path program 1 times [2021-12-15 22:01:37,358 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:37,358 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676108855] [2021-12-15 22:01:37,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:37,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:37,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:37,637 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 103 trivial. 0 not checked. [2021-12-15 22:01:37,639 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 22:01:37,639 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676108855] [2021-12-15 22:01:37,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676108855] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:37,639 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:37,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 22:01:37,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260069533] [2021-12-15 22:01:37,639 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:37,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-15 22:01:37,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 22:01:37,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-15 22:01:37,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-15 22:01:37,641 INFO L87 Difference]: Start difference. First operand 341 states and 536 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 22:01:39,648 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:41,677 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-15 22:01:41,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:41,920 INFO L93 Difference]: Finished difference Result 679 states and 1068 transitions. [2021-12-15 22:01:41,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-15 22:01:41,920 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 127 [2021-12-15 22:01:41,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:41,921 INFO L225 Difference]: With dead ends: 679 [2021-12-15 22:01:41,921 INFO L226 Difference]: Without dead ends: 341 [2021-12-15 22:01:41,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-12-15 22:01:41,922 INFO L933 BasicCegarLoop]: 196 mSDtfsCounter, 7 mSDsluCounter, 435 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 1 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:41,922 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [7 Valid, 631 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 166 Invalid, 2 Unknown, 0 Unchecked, 4.3s Time] [2021-12-15 22:01:41,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-12-15 22:01:41,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-12-15 22:01:41,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 340 states have (on average 1.5735294117647058) internal successors, (535), 340 states have internal predecessors, (535), 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 22:01:41,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 535 transitions. [2021-12-15 22:01:41,927 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 535 transitions. Word has length 127 [2021-12-15 22:01:41,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:41,927 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 535 transitions. [2021-12-15 22:01:41,927 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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 22:01:41,927 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 535 transitions. [2021-12-15 22:01:41,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 22:01:41,928 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:41,928 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 22:01:41,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-12-15 22:01:41,928 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:41,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:41,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1834873377, now seen corresponding path program 1 times [2021-12-15 22:01:41,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 22:01:41,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503208615] [2021-12-15 22:01:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:41,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 22:01:42,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 22:01:42,319 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 22:01:42,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 22:01:42,497 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 22:01:42,498 INFO L628 BasicCegarLoop]: Counterexample is feasible [2021-12-15 22:01:42,499 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2021-12-15 22:01:42,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-12-15 22:01:42,504 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] [2021-12-15 22:01:42,506 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-12-15 22:01:42,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.12 10:01:42 BoogieIcfgContainer [2021-12-15 22:01:42,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-12-15 22:01:42,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-12-15 22:01:42,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-12-15 22:01:42,584 INFO L275 PluginConnector]: Witness Printer initialized [2021-12-15 22:01:42,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:00:52" (3/4) ... [2021-12-15 22:01:42,587 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-12-15 22:01:42,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-12-15 22:01:42,587 INFO L158 Benchmark]: Toolchain (without parser) took 53870.36ms. Allocated memory was 117.4MB in the beginning and 190.8MB in the end (delta: 73.4MB). Free memory was 88.4MB in the beginning and 122.0MB in the end (delta: -33.6MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2021-12-15 22:01:42,587 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:01:42,588 INFO L158 Benchmark]: CACSL2BoogieTranslator took 512.67ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 71.7MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2021-12-15 22:01:42,588 INFO L158 Benchmark]: Boogie Procedure Inliner took 80.23ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 66.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 22:01:42,588 INFO L158 Benchmark]: Boogie Preprocessor took 91.60ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 59.7MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 22:01:42,588 INFO L158 Benchmark]: RCFGBuilder took 2816.81ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 59.7MB in the beginning and 101.5MB in the end (delta: -41.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. [2021-12-15 22:01:42,588 INFO L158 Benchmark]: TraceAbstraction took 50361.14ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 101.5MB in the beginning and 122.0MB in the end (delta: -20.5MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. [2021-12-15 22:01:42,589 INFO L158 Benchmark]: Witness Printer took 2.58ms. Allocated memory is still 190.8MB. Free memory is still 122.0MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 22:01:42,589 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 117.4MB. Free memory was 72.8MB in the beginning and 72.8MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 512.67ms. Allocated memory is still 117.4MB. Free memory was 88.1MB in the beginning and 71.7MB in the end (delta: 16.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 80.23ms. Allocated memory is still 117.4MB. Free memory was 71.7MB in the beginning and 66.8MB in the end (delta: 4.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.60ms. Allocated memory is still 117.4MB. Free memory was 66.8MB in the beginning and 59.7MB in the end (delta: 7.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 2816.81ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 59.7MB in the beginning and 101.5MB in the end (delta: -41.7MB). Peak memory consumption was 37.4MB. Max. memory is 16.1GB. * TraceAbstraction took 50361.14ms. Allocated memory was 142.6MB in the beginning and 190.8MB in the end (delta: 48.2MB). Free memory was 101.5MB in the beginning and 122.0MB in the end (delta: -20.5MB). Peak memory consumption was 105.2MB. Max. memory is 16.1GB. * Witness Printer took 2.58ms. Allocated memory is still 190.8MB. Free memory is still 122.0MB. There was no memory consumed. 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 - UnprovableResult [Line: 1733]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: overapproximation of bitwiseAnd at line 1152. Possible FailurePath: [L1054] static int init = 1; [L1055] static SSL_METHOD SSLv3_server_data ; VAL [init=1, SSLv3_server_data={4:0}] [L1077] SSL *s ; [L1078] int tmp ; [L1082] s = malloc(sizeof(SSL)) [L1083] s->s3 = malloc(sizeof(struct ssl3_state_st)) [L1084] s->ctx = malloc(sizeof(SSL_CTX)) [L1085] s->session = malloc(sizeof(SSL_SESSION)) [L1086] s->state = 8464 [L1088] s->info_callback = (void (*) ()) __VERIFIER_nondet_ulong() [L1089] s->options = __VERIFIER_nondet_ulong() [L1090] s->verify_mode = __VERIFIER_nondet_int() [L1091] EXPR s->session [L1091] (s->session)->peer = (struct x509_st*) __VERIFIER_nondet_ulong() [L1092] EXPR s->s3 [L1092] (s->s3)->tmp.cert_request = __VERIFIER_nondet_int() [L1093] EXPR s->s3 [L1093] (s->s3)->tmp.new_cipher = malloc(sizeof(struct ssl_cipher_st)) [L1094] EXPR s->s3 [L1094] EXPR (s->s3)->tmp.new_cipher [L1094] ((s->s3)->tmp.new_cipher)->algorithms = __VERIFIER_nondet_ulong() [L1095] EXPR s->s3 [L1095] EXPR (s->s3)->tmp.new_cipher [L1095] ((s->s3)->tmp.new_cipher)->algo_strength = __VERIFIER_nondet_ulong() [L1096] COND FALSE !(__VERIFIER_nondet_int()) [L1102] s->cert = malloc(sizeof(struct cert_st)) [L1103] EXPR s->cert [L1103] (s->cert)->pkeys[0].privatekey = (struct evp_pkey_st*) __VERIFIER_nondet_ulong() [L1106] CALL ssl3_accept(s) [L1112] BUF_MEM *buf ; [L1113] unsigned long l ; [L1114] unsigned long Time ; [L1115] unsigned long tmp ; [L1116] void (*cb)() ; [L1117] long num1 ; [L1118] int ret ; [L1119] int new_state ; [L1120] int state ; [L1121] int skip ; [L1122] int got_new_session ; [L1123] int tmp___1 = __VERIFIER_nondet_int() ; [L1124] int tmp___2 = __VERIFIER_nondet_int() ; [L1125] int tmp___3 = __VERIFIER_nondet_int() ; [L1126] int tmp___4 = __VERIFIER_nondet_int() ; [L1127] int tmp___5 = __VERIFIER_nondet_int() ; [L1128] int tmp___6 = __VERIFIER_nondet_int() ; [L1129] int tmp___7 ; [L1130] long tmp___8 = __VERIFIER_nondet_long() ; [L1131] int tmp___9 = __VERIFIER_nondet_int() ; [L1132] int tmp___10 = __VERIFIER_nondet_int() ; [L1133] int blastFlag ; [L1137] blastFlag = 0 [L1138] s->hit=__VERIFIER_nondet_int () [L1139] s->state = 8464 [L1140] tmp = __VERIFIER_nondet_int() [L1141] Time = tmp [L1142] cb = (void (*)())((void *)0) [L1143] ret = -1 [L1144] skip = 0 [L1145] got_new_session = 0 [L1146] EXPR s->info_callback VAL [={0:0}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->info_callback={0:-2}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1146] COND TRUE (unsigned long )s->info_callback != (unsigned long )((void *)0) [L1147] EXPR s->info_callback [L1147] cb = s->info_callback [L1151] EXPR s->in_handshake [L1151] s->in_handshake += 1 [L1152] COND FALSE !(tmp___1 & 12288) VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1161] EXPR s->cert VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->cert={-4294967295:0}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1161] COND FALSE !((unsigned long )s->cert == (unsigned long )((void *)0)) [L1167] COND TRUE 1 VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2}, blastFlag=0, got_new_session=0, init=1, ret=-1, s={-4294967291:0}, s={-4294967291:0}, s->state=8464, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1194] COND TRUE s->state == 8464 [L1354] s->shutdown = 0 [L1355] ret = __VERIFIER_nondet_int() [L1356] COND TRUE blastFlag == 0 [L1357] blastFlag = 1 VAL [={0:-2}, blastFlag=1, got_new_session=0, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1361] COND FALSE !(ret <= 0) [L1366] got_new_session = 1 [L1367] s->state = 8496 [L1368] s->init_num = 0 VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->s3={-4294967293:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1167] COND TRUE 1 VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8464, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2}, blastFlag=1, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8496, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1203] COND TRUE s->state == 8496 [L1372] ret = __VERIFIER_nondet_int() [L1373] COND TRUE blastFlag == 1 [L1374] blastFlag = 2 VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1378] COND FALSE !(ret <= 0) [L1383] s->hit VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->hit=7, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1383] COND TRUE s->hit [L1384] s->state = 8656 VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1388] s->init_num = 0 VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->s3={-4294967293:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1167] COND TRUE 1 VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8496, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state VAL [={0:-2}, blastFlag=2, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8656, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1260] COND TRUE s->state == 8656 [L1581] EXPR s->session [L1581] EXPR s->s3 [L1581] EXPR (s->s3)->tmp.new_cipher [L1581] (s->session)->cipher = (s->s3)->tmp.new_cipher [L1582] COND FALSE !(! tmp___9) [L1588] ret = __VERIFIER_nondet_int() [L1589] COND TRUE blastFlag == 2 [L1590] blastFlag = 4 VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1598] COND FALSE !(ret <= 0) [L1603] s->state = 8672 [L1604] s->init_num = 0 VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1605] COND FALSE !(! tmp___10) VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1692] EXPR s->s3 [L1692] EXPR (s->s3)->tmp.reuse_message VAL [={0:-2}, (s->s3)->tmp.reuse_message=4294967321, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->s3={-4294967293:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1692] COND FALSE !(! (s->s3)->tmp.reuse_message) [L1721] skip = 0 VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1167] COND TRUE 1 VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8656, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1169] EXPR s->state [L1169] state = s->state [L1170] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1170] COND FALSE !(s->state == 12292) [L1173] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1173] COND FALSE !(s->state == 16384) [L1176] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1176] COND FALSE !(s->state == 8192) [L1179] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1179] COND FALSE !(s->state == 24576) [L1182] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1182] COND FALSE !(s->state == 8195) [L1185] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1185] COND FALSE !(s->state == 8480) [L1188] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1188] COND FALSE !(s->state == 8481) [L1191] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1191] COND FALSE !(s->state == 8482) [L1194] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1194] COND FALSE !(s->state == 8464) [L1197] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1197] COND FALSE !(s->state == 8465) [L1200] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1200] COND FALSE !(s->state == 8466) [L1203] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1203] COND FALSE !(s->state == 8496) [L1206] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1206] COND FALSE !(s->state == 8497) [L1209] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1209] COND FALSE !(s->state == 8512) [L1212] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1212] COND FALSE !(s->state == 8513) [L1215] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1215] COND FALSE !(s->state == 8528) [L1218] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1218] COND FALSE !(s->state == 8529) [L1221] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1221] COND FALSE !(s->state == 8544) [L1224] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1224] COND FALSE !(s->state == 8545) [L1227] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1227] COND FALSE !(s->state == 8560) [L1230] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1230] COND FALSE !(s->state == 8561) [L1233] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1233] COND FALSE !(s->state == 8448) [L1236] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1236] COND FALSE !(s->state == 8576) [L1239] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1239] COND FALSE !(s->state == 8577) [L1242] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1242] COND FALSE !(s->state == 8592) [L1245] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1245] COND FALSE !(s->state == 8593) [L1248] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1248] COND FALSE !(s->state == 8608) [L1251] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1251] COND FALSE !(s->state == 8609) [L1254] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1254] COND FALSE !(s->state == 8640) [L1257] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1257] COND FALSE !(s->state == 8641) [L1260] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1260] COND FALSE !(s->state == 8656) [L1263] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1263] COND FALSE !(s->state == 8657) [L1266] EXPR s->state VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=1, s={-4294967291:0}, s={-4294967291:0}, s->state=8672, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1266] COND TRUE s->state == 8672 [L1614] ret = __VERIFIER_nondet_int() [L1615] COND TRUE blastFlag == 4 VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=-11, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] [L1733] reach_error() VAL [={0:-2}, blastFlag=4, got_new_session=1, init=1, ret=-11, s={-4294967291:0}, s={-4294967291:0}, skip=0, SSLv3_server_data={4:0}, state=8672, Time=8, tmp=8, tmp___1=0, tmp___10=1, tmp___2=0, tmp___3=0, tmp___4=0, tmp___5=0, tmp___6=0, tmp___8=0, tmp___9=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 145 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.2s, OverallIterations: 22, TraceHistogramMax: 5, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 46.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 19 mSolverCounterUnknown, 1412 SdHoareTripleChecker+Valid, 46.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1412 mSDsluCounter, 8507 SdHoareTripleChecker+Invalid, 44.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5306 mSDsCounter, 609 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4152 IncrementalHoareTripleChecker+Invalid, 4780 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 609 mSolverCounterUnsat, 3201 mSDtfsCounter, 4152 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 117 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=341occurred in iteration=15, InterpolantAutomatonStates: 86, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 21 MinimizatonAttempts, 885 StatesRemovedByMinimization, 20 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 1924 NumberOfCodeBlocks, 1924 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 1776 ConstructedInterpolants, 0 QuantifiedInterpolants, 4546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 21 InterpolantComputations, 21 PerfectInterpolantSequences, 923/923 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-12-15 22:01:42,630 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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/s3_srvr.blast.04.i.cil.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.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 77bf68ba948969a1221675397215385a80fe998a5bd74b2516bc1a677cd2e8b7 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-15 22:01:44,499 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 22:01:44,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 22:01:44,543 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 22:01:44,543 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 22:01:44,546 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 22:01:44,547 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 22:01:44,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 22:01:44,552 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 22:01:44,553 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 22:01:44,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 22:01:44,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 22:01:44,555 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 22:01:44,556 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 22:01:44,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 22:01:44,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 22:01:44,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 22:01:44,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 22:01:44,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 22:01:44,567 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 22:01:44,570 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 22:01:44,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 22:01:44,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 22:01:44,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 22:01:44,577 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 22:01:44,577 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 22:01:44,577 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 22:01:44,578 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 22:01:44,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 22:01:44,579 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 22:01:44,580 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 22:01:44,580 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 22:01:44,581 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 22:01:44,582 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 22:01:44,583 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 22:01:44,583 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 22:01:44,584 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 22:01:44,584 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 22:01:44,584 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 22:01:44,585 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 22:01:44,585 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 22:01:44,586 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2021-12-15 22:01:44,615 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 22:01:44,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 22:01:44,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 22:01:44,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 22:01:44,617 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-15 22:01:44,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-15 22:01:44,618 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 22:01:44,618 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 22:01:44,618 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 22:01:44,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 22:01:44,619 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 22:01:44,619 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 22:01:44,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 22:01:44,620 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-15 22:01:44,620 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-15 22:01:44,620 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-15 22:01:44,620 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-12-15 22:01:44,620 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-12-15 22:01:44,620 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-12-15 22:01:44,621 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 22:01:44,621 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 22:01:44,621 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 22:01:44,621 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-15 22:01:44,621 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 22:01:44,621 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 22:01:44,621 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-15 22:01:44,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:01:44,622 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 22:01:44,622 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-15 22:01:44,622 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-15 22:01:44,622 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-12-15 22:01:44,622 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-12-15 22:01:44,623 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-15 22:01:44,623 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-15 22:01:44,623 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-15 22:01:44,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 22:01:44,623 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-12-15 22:01:44,623 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77bf68ba948969a1221675397215385a80fe998a5bd74b2516bc1a677cd2e8b7 [2021-12-15 22:01:44,891 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 22:01:44,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 22:01:44,918 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 22:01:44,919 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 22:01:44,919 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 22:01:44,920 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2021-12-15 22:01:44,968 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab5d881e/bbdcfb6743c748aa879d9d5760a2cdf3/FLAG4f06b9ee8 [2021-12-15 22:01:45,485 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 22:01:45,486 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl/s3_srvr.blast.04.i.cil.c [2021-12-15 22:01:45,503 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab5d881e/bbdcfb6743c748aa879d9d5760a2cdf3/FLAG4f06b9ee8 [2021-12-15 22:01:45,779 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cab5d881e/bbdcfb6743c748aa879d9d5760a2cdf3 [2021-12-15 22:01:45,782 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 22:01:45,784 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 22:01:45,785 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 22:01:45,785 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 22:01:45,788 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 22:01:45,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:01:45" (1/1) ... [2021-12-15 22:01:45,789 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f3d0d10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:45, skipping insertion in model container [2021-12-15 22:01:45,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 10:01:45" (1/1) ... [2021-12-15 22:01:45,794 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 22:01:45,843 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:01:46,118 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/s3_srvr.blast.04.i.cil.c[72500,72513] [2021-12-15 22:01:46,135 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:01:46,159 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-12-15 22:01:46,169 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 22:01:46,272 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/s3_srvr.blast.04.i.cil.c[72500,72513] [2021-12-15 22:01:46,274 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:01:46,282 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 22:01:46,346 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/s3_srvr.blast.04.i.cil.c[72500,72513] [2021-12-15 22:01:46,348 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 22:01:46,358 INFO L208 MainTranslator]: Completed translation [2021-12-15 22:01:46,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46 WrapperNode [2021-12-15 22:01:46,359 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 22:01:46,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 22:01:46,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 22:01:46,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 22:01:46,364 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,437 INFO L137 Inliner]: procedures = 35, calls = 223, calls flagged for inlining = 7, calls inlined = 3, statements flattened = 752 [2021-12-15 22:01:46,445 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 22:01:46,445 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 22:01:46,446 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 22:01:46,446 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 22:01:46,451 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,452 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 22:01:46,494 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 22:01:46,494 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 22:01:46,494 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 22:01:46,495 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (1/1) ... [2021-12-15 22:01:46,509 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-15 22:01:46,517 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 22:01:46,543 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 22:01:46,559 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 22:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 22:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-12-15 22:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-15 22:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-12-15 22:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-15 22:01:46,596 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-15 22:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 22:01:46,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 22:01:46,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-12-15 22:01:46,770 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 22:01:46,771 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 22:01:46,781 WARN L815 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-12-15 22:01:53,638 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##90: assume false; [2021-12-15 22:01:53,638 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##91: assume !false; [2021-12-15 22:01:53,638 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 22:01:53,645 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 22:01:53,645 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 22:01:53,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:01:53 BoogieIcfgContainer [2021-12-15 22:01:53,647 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 22:01:53,648 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-15 22:01:53,648 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-15 22:01:53,650 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-15 22:01:53,650 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.12 10:01:45" (1/3) ... [2021-12-15 22:01:53,650 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f82f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:01:53, skipping insertion in model container [2021-12-15 22:01:53,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 10:01:46" (2/3) ... [2021-12-15 22:01:53,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@483f82f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.12 10:01:53, skipping insertion in model container [2021-12-15 22:01:53,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 10:01:53" (3/3) ... [2021-12-15 22:01:53,671 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr.blast.04.i.cil.c [2021-12-15 22:01:53,675 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-15 22:01:53,675 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-15 22:01:53,714 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-15 22:01:53,727 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 22:01:53,728 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-15 22:01:53,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 145 states, 143 states have (on average 1.7062937062937062) internal successors, (244), 144 states have internal predecessors, (244), 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 22:01:53,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-15 22:01:53,751 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:53,751 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 22:01:53,752 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:53,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:53,756 INFO L85 PathProgramCache]: Analyzing trace with hash 1430118927, now seen corresponding path program 1 times [2021-12-15 22:01:53,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 22:01:53,767 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [914610049] [2021-12-15 22:01:53,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:53,768 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 22:01:53,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 22:01:53,770 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 22:01:53,771 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-12-15 22:01:54,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:54,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:01:54,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:01:54,599 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 22:01:54,600 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:01:54,600 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 22:01:54,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [914610049] [2021-12-15 22:01:54,600 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [914610049] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:54,601 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:54,601 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:01:54,602 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226404875] [2021-12-15 22:01:54,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:54,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:01:54,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 22:01:54,640 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:01:54,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:01:54,642 INFO L87 Difference]: Start difference. First operand has 145 states, 143 states have (on average 1.7062937062937062) internal successors, (244), 144 states have internal predecessors, (244), 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 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 22:01:54,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:54,779 INFO L93 Difference]: Finished difference Result 412 states and 698 transitions. [2021-12-15 22:01:54,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:01:54,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 47 [2021-12-15 22:01:54,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:54,795 INFO L225 Difference]: With dead ends: 412 [2021-12-15 22:01:54,795 INFO L226 Difference]: Without dead ends: 251 [2021-12-15 22:01:54,798 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 22:01:54,802 INFO L933 BasicCegarLoop]: 236 mSDtfsCounter, 186 mSDsluCounter, 220 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 186 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:54,803 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [186 Valid, 456 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-15 22:01:54,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2021-12-15 22:01:54,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2021-12-15 22:01:54,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 250 states have (on average 1.516) internal successors, (379), 250 states have internal predecessors, (379), 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 22:01:54,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 379 transitions. [2021-12-15 22:01:54,864 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 379 transitions. Word has length 47 [2021-12-15 22:01:54,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:54,865 INFO L470 AbstractCegarLoop]: Abstraction has 251 states and 379 transitions. [2021-12-15 22:01:54,865 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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 22:01:54,865 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 379 transitions. [2021-12-15 22:01:54,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-12-15 22:01:54,871 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:54,871 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, 1, 1, 1, 1] [2021-12-15 22:01:54,887 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-12-15 22:01:55,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 22:01:55,085 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:55,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:55,088 INFO L85 PathProgramCache]: Analyzing trace with hash -1889550317, now seen corresponding path program 1 times [2021-12-15 22:01:55,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 22:01:55,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [655413597] [2021-12-15 22:01:55,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:55,097 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 22:01:55,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 22:01:55,112 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 22:01:55,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-12-15 22:01:55,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:55,614 INFO L263 TraceCheckSpWp]: Trace formula consists of 662 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:01:55,616 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:01:55,794 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 22:01:55,794 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:01:55,794 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 22:01:55,794 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [655413597] [2021-12-15 22:01:55,795 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [655413597] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:55,795 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:55,795 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:01:55,795 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251915212] [2021-12-15 22:01:55,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:55,796 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:01:55,796 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 22:01:55,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:01:55,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:01:55,797 INFO L87 Difference]: Start difference. First operand 251 states and 379 transitions. Second operand has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 22:01:56,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:56,112 INFO L93 Difference]: Finished difference Result 490 states and 746 transitions. [2021-12-15 22:01:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:01:56,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 64 [2021-12-15 22:01:56,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:56,115 INFO L225 Difference]: With dead ends: 490 [2021-12-15 22:01:56,115 INFO L226 Difference]: Without dead ends: 368 [2021-12-15 22:01:56,116 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 62 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 22:01:56,116 INFO L933 BasicCegarLoop]: 368 mSDtfsCounter, 135 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 557 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:56,117 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [135 Valid, 557 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2021-12-15 22:01:56,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2021-12-15 22:01:56,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2021-12-15 22:01:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.5122615803814714) internal successors, (555), 367 states have internal predecessors, (555), 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 22:01:56,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 555 transitions. [2021-12-15 22:01:56,130 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 555 transitions. Word has length 64 [2021-12-15 22:01:56,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:56,131 INFO L470 AbstractCegarLoop]: Abstraction has 368 states and 555 transitions. [2021-12-15 22:01:56,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 3 states have internal predecessors, (64), 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 22:01:56,131 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 555 transitions. [2021-12-15 22:01:56,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2021-12-15 22:01:56,136 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:56,137 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2021-12-15 22:01:56,156 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-12-15 22:01:56,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 22:01:56,354 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:56,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:56,354 INFO L85 PathProgramCache]: Analyzing trace with hash 1833682444, now seen corresponding path program 1 times [2021-12-15 22:01:56,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 22:01:56,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [627119889] [2021-12-15 22:01:56,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:56,355 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 22:01:56,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 22:01:56,358 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 22:01:56,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-12-15 22:01:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 22:01:56,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 735 conjuncts, 2 conjunts are in the unsatisfiable core [2021-12-15 22:01:56,837 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-12-15 22:01:57,050 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-12-15 22:01:57,050 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-12-15 22:01:57,050 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-12-15 22:01:57,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [627119889] [2021-12-15 22:01:57,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [627119889] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 22:01:57,051 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 22:01:57,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 22:01:57,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711030501] [2021-12-15 22:01:57,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 22:01:57,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-12-15 22:01:57,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-12-15 22:01:57,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 22:01:57,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 22:01:57,053 INFO L87 Difference]: Start difference. First operand 368 states and 555 transitions. Second operand has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:01:57,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 22:01:57,224 INFO L93 Difference]: Finished difference Result 724 states and 1098 transitions. [2021-12-15 22:01:57,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 22:01:57,224 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 86 [2021-12-15 22:01:57,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-15 22:01:57,226 INFO L225 Difference]: With dead ends: 724 [2021-12-15 22:01:57,226 INFO L226 Difference]: Without dead ends: 485 [2021-12-15 22:01:57,227 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 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 22:01:57,227 INFO L933 BasicCegarLoop]: 372 mSDtfsCounter, 134 mSDsluCounter, 189 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 561 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2021-12-15 22:01:57,228 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [134 Valid, 561 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2021-12-15 22:01:57,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 485 states. [2021-12-15 22:01:57,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 485 to 485. [2021-12-15 22:01:57,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 485 states, 484 states have (on average 1.512396694214876) internal successors, (732), 484 states have internal predecessors, (732), 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 22:01:57,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 485 states to 485 states and 732 transitions. [2021-12-15 22:01:57,239 INFO L78 Accepts]: Start accepts. Automaton has 485 states and 732 transitions. Word has length 86 [2021-12-15 22:01:57,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-15 22:01:57,240 INFO L470 AbstractCegarLoop]: Abstraction has 485 states and 732 transitions. [2021-12-15 22:01:57,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.333333333333332) internal successors, (76), 3 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-12-15 22:01:57,240 INFO L276 IsEmpty]: Start isEmpty. Operand 485 states and 732 transitions. [2021-12-15 22:01:57,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2021-12-15 22:01:57,243 INFO L506 BasicCegarLoop]: Found error trace [2021-12-15 22:01:57,243 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 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 22:01:57,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-12-15 22:01:57,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-12-15 22:01:57,457 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-15 22:01:57,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 22:01:57,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1128276771, now seen corresponding path program 1 times [2021-12-15 22:01:57,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-12-15 22:01:57,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654042980] [2021-12-15 22:01:57,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 22:01:57,459 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-12-15 22:01:57,460 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-12-15 22:01:57,468 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-12-15 22:01:57,469 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process