/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc config/AutomizerReach.xml -s config/svcomp-Reach-64bit-Automizer_Default.epf -i ../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-4f750a8 [2020-12-21 23:16:55,009 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-21 23:16:55,013 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-21 23:16:55,070 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-21 23:16:55,071 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-21 23:16:55,076 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-21 23:16:55,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-21 23:16:55,089 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-21 23:16:55,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-21 23:16:55,101 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-21 23:16:55,102 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-21 23:16:55,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-21 23:16:55,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-21 23:16:55,108 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-21 23:16:55,109 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-21 23:16:55,112 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-21 23:16:55,113 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-21 23:16:55,117 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-21 23:16:55,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-21 23:16:55,131 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-21 23:16:55,133 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-21 23:16:55,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-21 23:16:55,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-21 23:16:55,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-21 23:16:55,147 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-21 23:16:55,153 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-21 23:16:55,154 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-21 23:16:55,156 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-21 23:16:55,157 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-21 23:16:55,159 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-21 23:16:55,159 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-21 23:16:55,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-21 23:16:55,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-21 23:16:55,160 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-21 23:16:55,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-21 23:16:55,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-21 23:16:55,163 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2020-12-21 23:16:55,227 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-21 23:16:55,227 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-21 23:16:55,232 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-21 23:16:55,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-21 23:16:55,233 INFO L138 SettingsManager]: * Use SBE=true [2020-12-21 23:16:55,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-21 23:16:55,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-21 23:16:55,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-21 23:16:55,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-21 23:16:55,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-21 23:16:55,235 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-21 23:16:55,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-21 23:16:55,236 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-21 23:16:55,236 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-21 23:16:55,236 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-21 23:16:55,236 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-21 23:16:55,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-21 23:16:55,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:16:55,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-21 23:16:55,237 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-21 23:16:55,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-21 23:16:55,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-21 23:16:55,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-21 23:16:55,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-21 23:16:55,238 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-21 23:16:55,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-21 23:16:55,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-21 23:16:55,673 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-21 23:16:55,676 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-21 23:16:55,678 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-21 23:16:55,678 INFO L275 PluginConnector]: CDTParser initialized [2020-12-21 23:16:55,679 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2020-12-21 23:16:55,757 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002905ff5/14d0cf9ca7b444a38d41ed3e4c345688/FLAGf3ba80ff3 [2020-12-21 23:16:56,343 INFO L306 CDTParser]: Found 1 translation units. [2020-12-21 23:16:56,344 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c [2020-12-21 23:16:56,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002905ff5/14d0cf9ca7b444a38d41ed3e4c345688/FLAGf3ba80ff3 [2020-12-21 23:16:56,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/002905ff5/14d0cf9ca7b444a38d41ed3e4c345688 [2020-12-21 23:16:56,721 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-21 23:16:56,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-21 23:16:56,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-21 23:16:56,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-21 23:16:56,731 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-21 23:16:56,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:16:56" (1/1) ... [2020-12-21 23:16:56,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2de35837 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:56, skipping insertion in model container [2020-12-21 23:16:56,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 11:16:56" (1/1) ... [2020-12-21 23:16:56,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-21 23:16:56,785 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-21 23:16:57,005 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[13706,13719] [2020-12-21 23:16:57,010 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:16:57,020 INFO L203 MainTranslator]: Completed pre-run [2020-12-21 23:16:57,047 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/openssl-simplified/s3_srvr_1a.cil.c[13706,13719] [2020-12-21 23:16:57,048 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-21 23:16:57,064 INFO L208 MainTranslator]: Completed translation [2020-12-21 23:16:57,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57 WrapperNode [2020-12-21 23:16:57,065 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-21 23:16:57,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-21 23:16:57,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-21 23:16:57,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-21 23:16:57,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,102 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-21 23:16:57,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-21 23:16:57,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-21 23:16:57,103 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-21 23:16:57,113 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,115 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,115 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,120 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,127 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,129 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... [2020-12-21 23:16:57,132 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-21 23:16:57,133 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-21 23:16:57,133 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-21 23:16:57,133 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-21 23:16:57,134 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-21 23:16:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-21 23:16:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-21 23:16:57,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-21 23:16:57,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-21 23:16:57,725 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-21 23:16:57,726 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2020-12-21 23:16:57,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:16:57 BoogieIcfgContainer [2020-12-21 23:16:57,728 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-21 23:16:57,736 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-21 23:16:57,736 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-21 23:16:57,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-21 23:16:57,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 11:16:56" (1/3) ... [2020-12-21 23:16:57,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629a8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:16:57, skipping insertion in model container [2020-12-21 23:16:57,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 11:16:57" (2/3) ... [2020-12-21 23:16:57,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@629a8ac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 11:16:57, skipping insertion in model container [2020-12-21 23:16:57,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:16:57" (3/3) ... [2020-12-21 23:16:57,747 INFO L111 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-12-21 23:16:57,753 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-21 23:16:57,758 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-21 23:16:57,773 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-21 23:16:57,801 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-21 23:16:57,801 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-21 23:16:57,801 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-21 23:16:57,801 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-21 23:16:57,801 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-21 23:16:57,801 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-21 23:16:57,802 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-21 23:16:57,802 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-21 23:16:57,818 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2020-12-21 23:16:57,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-21 23:16:57,824 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:57,824 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-21 23:16:57,825 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:57,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:57,830 INFO L82 PathProgramCache]: Analyzing trace with hash 28699930, now seen corresponding path program 1 times [2020-12-21 23:16:57,838 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:57,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849954033] [2020-12-21 23:16:57,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:16:58,016 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849954033] [2020-12-21 23:16:58,016 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:58,017 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:58,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417832854] [2020-12-21 23:16:58,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:58,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:58,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:58,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,039 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2020-12-21 23:16:58,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:58,123 INFO L93 Difference]: Finished difference Result 131 states and 218 transitions. [2020-12-21 23:16:58,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:58,125 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-21 23:16:58,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:58,137 INFO L225 Difference]: With dead ends: 131 [2020-12-21 23:16:58,137 INFO L226 Difference]: Without dead ends: 79 [2020-12-21 23:16:58,141 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2020-12-21 23:16:58,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 79. [2020-12-21 23:16:58,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-12-21 23:16:58,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 121 transitions. [2020-12-21 23:16:58,214 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 121 transitions. Word has length 5 [2020-12-21 23:16:58,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:58,215 INFO L481 AbstractCegarLoop]: Abstraction has 79 states and 121 transitions. [2020-12-21 23:16:58,215 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:58,215 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 121 transitions. [2020-12-21 23:16:58,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-12-21 23:16:58,217 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:58,217 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:58,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-21 23:16:58,218 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:58,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:58,221 INFO L82 PathProgramCache]: Analyzing trace with hash -1485309586, now seen corresponding path program 1 times [2020-12-21 23:16:58,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:58,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765466275] [2020-12-21 23:16:58,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:58,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:58,328 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-21 23:16:58,329 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765466275] [2020-12-21 23:16:58,329 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:58,329 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:58,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460077451] [2020-12-21 23:16:58,331 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:58,331 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:58,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:58,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,332 INFO L87 Difference]: Start difference. First operand 79 states and 121 transitions. Second operand 3 states. [2020-12-21 23:16:58,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:58,400 INFO L93 Difference]: Finished difference Result 156 states and 246 transitions. [2020-12-21 23:16:58,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:58,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-12-21 23:16:58,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:58,403 INFO L225 Difference]: With dead ends: 156 [2020-12-21 23:16:58,403 INFO L226 Difference]: Without dead ends: 116 [2020-12-21 23:16:58,404 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-12-21 23:16:58,428 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 116. [2020-12-21 23:16:58,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 116 states. [2020-12-21 23:16:58,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116 states to 116 states and 175 transitions. [2020-12-21 23:16:58,431 INFO L78 Accepts]: Start accepts. Automaton has 116 states and 175 transitions. Word has length 10 [2020-12-21 23:16:58,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:58,431 INFO L481 AbstractCegarLoop]: Abstraction has 116 states and 175 transitions. [2020-12-21 23:16:58,431 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:58,431 INFO L276 IsEmpty]: Start isEmpty. Operand 116 states and 175 transitions. [2020-12-21 23:16:58,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-12-21 23:16:58,433 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:58,433 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:58,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-21 23:16:58,433 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:58,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:58,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1152886494, now seen corresponding path program 1 times [2020-12-21 23:16:58,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:58,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895770374] [2020-12-21 23:16:58,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:58,478 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-21 23:16:58,479 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895770374] [2020-12-21 23:16:58,479 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:58,479 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:58,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303756099] [2020-12-21 23:16:58,480 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:58,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:58,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:58,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,482 INFO L87 Difference]: Start difference. First operand 116 states and 175 transitions. Second operand 3 states. [2020-12-21 23:16:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:58,582 INFO L93 Difference]: Finished difference Result 230 states and 355 transitions. [2020-12-21 23:16:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:58,583 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 16 [2020-12-21 23:16:58,583 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:58,586 INFO L225 Difference]: With dead ends: 230 [2020-12-21 23:16:58,587 INFO L226 Difference]: Without dead ends: 153 [2020-12-21 23:16:58,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-12-21 23:16:58,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-12-21 23:16:58,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-12-21 23:16:58,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 230 transitions. [2020-12-21 23:16:58,629 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 230 transitions. Word has length 16 [2020-12-21 23:16:58,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:58,630 INFO L481 AbstractCegarLoop]: Abstraction has 153 states and 230 transitions. [2020-12-21 23:16:58,630 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:58,630 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 230 transitions. [2020-12-21 23:16:58,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-21 23:16:58,633 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:58,634 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:58,634 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-21 23:16:58,634 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:58,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:58,635 INFO L82 PathProgramCache]: Analyzing trace with hash -77104047, now seen corresponding path program 1 times [2020-12-21 23:16:58,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:58,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126247621] [2020-12-21 23:16:58,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:58,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:58,686 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-12-21 23:16:58,686 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126247621] [2020-12-21 23:16:58,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:58,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:58,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471921395] [2020-12-21 23:16:58,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:58,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:58,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:58,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,690 INFO L87 Difference]: Start difference. First operand 153 states and 230 transitions. Second operand 3 states. [2020-12-21 23:16:58,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:58,825 INFO L93 Difference]: Finished difference Result 321 states and 484 transitions. [2020-12-21 23:16:58,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:58,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-21 23:16:58,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:58,831 INFO L225 Difference]: With dead ends: 321 [2020-12-21 23:16:58,831 INFO L226 Difference]: Without dead ends: 170 [2020-12-21 23:16:58,833 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-12-21 23:16:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 168. [2020-12-21 23:16:58,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 168 states. [2020-12-21 23:16:58,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 246 transitions. [2020-12-21 23:16:58,853 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 246 transitions. Word has length 31 [2020-12-21 23:16:58,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:58,854 INFO L481 AbstractCegarLoop]: Abstraction has 168 states and 246 transitions. [2020-12-21 23:16:58,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:58,854 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 246 transitions. [2020-12-21 23:16:58,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-12-21 23:16:58,856 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:58,856 INFO L422 BasicCegarLoop]: trace histogram [4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:58,856 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-21 23:16:58,857 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:58,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:58,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1611839695, now seen corresponding path program 1 times [2020-12-21 23:16:58,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:58,858 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594004538] [2020-12-21 23:16:58,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:58,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:58,906 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-21 23:16:58,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594004538] [2020-12-21 23:16:58,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:58,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:58,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459710040] [2020-12-21 23:16:58,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:58,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:58,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:58,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:58,909 INFO L87 Difference]: Start difference. First operand 168 states and 246 transitions. Second operand 3 states. [2020-12-21 23:16:59,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:59,022 INFO L93 Difference]: Finished difference Result 378 states and 567 transitions. [2020-12-21 23:16:59,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:59,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2020-12-21 23:16:59,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:59,024 INFO L225 Difference]: With dead ends: 378 [2020-12-21 23:16:59,025 INFO L226 Difference]: Without dead ends: 212 [2020-12-21 23:16:59,026 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-12-21 23:16:59,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 207. [2020-12-21 23:16:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 207 states. [2020-12-21 23:16:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 285 transitions. [2020-12-21 23:16:59,042 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 285 transitions. Word has length 31 [2020-12-21 23:16:59,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:59,042 INFO L481 AbstractCegarLoop]: Abstraction has 207 states and 285 transitions. [2020-12-21 23:16:59,043 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 285 transitions. [2020-12-21 23:16:59,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-12-21 23:16:59,045 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:59,045 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:59,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-21 23:16:59,046 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:59,046 INFO L82 PathProgramCache]: Analyzing trace with hash -359756882, now seen corresponding path program 1 times [2020-12-21 23:16:59,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:59,047 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989958956] [2020-12-21 23:16:59,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:59,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:59,141 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-12-21 23:16:59,141 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989958956] [2020-12-21 23:16:59,141 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:59,142 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:59,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047164647] [2020-12-21 23:16:59,144 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:59,144 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:59,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:59,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,147 INFO L87 Difference]: Start difference. First operand 207 states and 285 transitions. Second operand 3 states. [2020-12-21 23:16:59,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:59,194 INFO L93 Difference]: Finished difference Result 415 states and 578 transitions. [2020-12-21 23:16:59,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:59,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-12-21 23:16:59,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:59,196 INFO L225 Difference]: With dead ends: 415 [2020-12-21 23:16:59,196 INFO L226 Difference]: Without dead ends: 265 [2020-12-21 23:16:59,197 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-12-21 23:16:59,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 263. [2020-12-21 23:16:59,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 263 states. [2020-12-21 23:16:59,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 365 transitions. [2020-12-21 23:16:59,212 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 365 transitions. Word has length 45 [2020-12-21 23:16:59,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:59,212 INFO L481 AbstractCegarLoop]: Abstraction has 263 states and 365 transitions. [2020-12-21 23:16:59,212 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:59,212 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 365 transitions. [2020-12-21 23:16:59,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-12-21 23:16:59,215 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:59,215 INFO L422 BasicCegarLoop]: trace histogram [5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:59,215 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-21 23:16:59,216 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:59,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:59,216 INFO L82 PathProgramCache]: Analyzing trace with hash -1572307813, now seen corresponding path program 1 times [2020-12-21 23:16:59,217 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:59,217 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371473325] [2020-12-21 23:16:59,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:59,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:59,263 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-12-21 23:16:59,265 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371473325] [2020-12-21 23:16:59,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:59,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:59,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134210412] [2020-12-21 23:16:59,266 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:59,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:59,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:59,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,269 INFO L87 Difference]: Start difference. First operand 263 states and 365 transitions. Second operand 3 states. [2020-12-21 23:16:59,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:59,392 INFO L93 Difference]: Finished difference Result 522 states and 739 transitions. [2020-12-21 23:16:59,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:59,397 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-12-21 23:16:59,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:59,398 INFO L225 Difference]: With dead ends: 522 [2020-12-21 23:16:59,398 INFO L226 Difference]: Without dead ends: 183 [2020-12-21 23:16:59,399 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-12-21 23:16:59,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2020-12-21 23:16:59,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180 states. [2020-12-21 23:16:59,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 233 transitions. [2020-12-21 23:16:59,414 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 233 transitions. Word has length 48 [2020-12-21 23:16:59,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:59,415 INFO L481 AbstractCegarLoop]: Abstraction has 180 states and 233 transitions. [2020-12-21 23:16:59,418 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:59,418 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 233 transitions. [2020-12-21 23:16:59,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-12-21 23:16:59,423 INFO L414 BasicCegarLoop]: Found error trace [2020-12-21 23:16:59,424 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-21 23:16:59,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-21 23:16:59,424 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-21 23:16:59,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-21 23:16:59,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1927293386, now seen corresponding path program 1 times [2020-12-21 23:16:59,428 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-21 23:16:59,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [640756149] [2020-12-21 23:16:59,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-21 23:16:59,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-21 23:16:59,579 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2020-12-21 23:16:59,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [640756149] [2020-12-21 23:16:59,580 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-21 23:16:59,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-21 23:16:59,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652492060] [2020-12-21 23:16:59,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-21 23:16:59,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-21 23:16:59,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-21 23:16:59,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,585 INFO L87 Difference]: Start difference. First operand 180 states and 233 transitions. Second operand 3 states. [2020-12-21 23:16:59,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-21 23:16:59,599 INFO L93 Difference]: Finished difference Result 273 states and 334 transitions. [2020-12-21 23:16:59,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-21 23:16:59,599 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 76 [2020-12-21 23:16:59,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-21 23:16:59,600 INFO L225 Difference]: With dead ends: 273 [2020-12-21 23:16:59,600 INFO L226 Difference]: Without dead ends: 0 [2020-12-21 23:16:59,601 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-21 23:16:59,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-21 23:16:59,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-21 23:16:59,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-21 23:16:59,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-21 23:16:59,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 76 [2020-12-21 23:16:59,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-21 23:16:59,602 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-21 23:16:59,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-21 23:16:59,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-21 23:16:59,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-21 23:16:59,603 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-21 23:16:59,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-21 23:17:00,036 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-21 23:17:00,036 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-21 23:17:00,036 INFO L192 CegarLoopUtils]: At program point L218(lines 10 219) the Hoare annotation is: true [2020-12-21 23:17:00,037 INFO L189 CegarLoopUtils]: For program point L70(lines 70 187) no Hoare annotation was computed. [2020-12-21 23:17:00,037 INFO L189 CegarLoopUtils]: For program point L62(lines 62 191) no Hoare annotation was computed. [2020-12-21 23:17:00,037 INFO L189 CegarLoopUtils]: For program point L153-1(lines 76 185) no Hoare annotation was computed. [2020-12-21 23:17:00,037 INFO L189 CegarLoopUtils]: For program point L54(lines 54 195) no Hoare annotation was computed. [2020-12-21 23:17:00,037 INFO L189 CegarLoopUtils]: For program point L87-1(lines 76 185) no Hoare annotation was computed. [2020-12-21 23:17:00,038 INFO L185 CegarLoopUtils]: At program point L178(lines 24 213) the Hoare annotation is: (let ((.cse0 (<= ULTIMATE.start_main_~blastFlag~0 3))) (or (and (<= 8640 ULTIMATE.start_main_~s__state~0) (not (= ULTIMATE.start_main_~s__hit~0 0)) .cse0) (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0) (and .cse0 (<= 8672 ULTIMATE.start_main_~s__state~0)))) [2020-12-21 23:17:00,038 INFO L189 CegarLoopUtils]: For program point L46(lines 46 199) no Hoare annotation was computed. [2020-12-21 23:17:00,038 INFO L189 CegarLoopUtils]: For program point L137(lines 137 141) no Hoare annotation was computed. [2020-12-21 23:17:00,038 INFO L185 CegarLoopUtils]: At program point L71(lines 70 187) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~blastFlag~0 3)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)))) [2020-12-21 23:17:00,038 INFO L189 CegarLoopUtils]: For program point L38(lines 38 203) no Hoare annotation was computed. [2020-12-21 23:17:00,038 INFO L185 CegarLoopUtils]: At program point L63(lines 62 191) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,039 INFO L185 CegarLoopUtils]: At program point L55(lines 54 195) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,039 INFO L185 CegarLoopUtils]: At program point L47(lines 46 199) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,039 INFO L189 CegarLoopUtils]: For program point L80-1(lines 80 82) no Hoare annotation was computed. [2020-12-21 23:17:00,039 INFO L189 CegarLoopUtils]: For program point L171-1(lines 76 185) no Hoare annotation was computed. [2020-12-21 23:17:00,039 INFO L185 CegarLoopUtils]: At program point L39(lines 38 203) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~s__state~0 8512))) (or (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and (= ULTIMATE.start_main_~blastFlag~0 1) .cse0) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)))) [2020-12-21 23:17:00,040 INFO L189 CegarLoopUtils]: For program point L31(lines 31 206) no Hoare annotation was computed. [2020-12-21 23:17:00,040 INFO L185 CegarLoopUtils]: At program point L122(lines 115 124) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,040 INFO L185 CegarLoopUtils]: At program point L114(lines 107 125) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,040 INFO L189 CegarLoopUtils]: For program point L164-1(lines 164 166) no Hoare annotation was computed. [2020-12-21 23:17:00,040 INFO L185 CegarLoopUtils]: At program point L32(lines 31 206) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,040 INFO L189 CegarLoopUtils]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-21 23:17:00,041 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 217) no Hoare annotation was computed. [2020-12-21 23:17:00,041 INFO L189 CegarLoopUtils]: For program point L107(lines 107 125) no Hoare annotation was computed. [2020-12-21 23:17:00,041 INFO L189 CegarLoopUtils]: For program point L74(lines 74 185) no Hoare annotation was computed. [2020-12-21 23:17:00,041 INFO L189 CegarLoopUtils]: For program point L66(lines 66 189) no Hoare annotation was computed. [2020-12-21 23:17:00,041 INFO L189 CegarLoopUtils]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-21 23:17:00,041 INFO L189 CegarLoopUtils]: For program point L58(lines 58 193) no Hoare annotation was computed. [2020-12-21 23:17:00,042 INFO L189 CegarLoopUtils]: For program point L25(line 25) no Hoare annotation was computed. [2020-12-21 23:17:00,042 INFO L192 CegarLoopUtils]: At program point L215(lines 10 219) the Hoare annotation is: true [2020-12-21 23:17:00,042 INFO L189 CegarLoopUtils]: For program point L116(lines 116 120) no Hoare annotation was computed. [2020-12-21 23:17:00,042 INFO L189 CegarLoopUtils]: For program point L50(lines 50 197) no Hoare annotation was computed. [2020-12-21 23:17:00,042 INFO L189 CegarLoopUtils]: For program point L174(lines 174 176) no Hoare annotation was computed. [2020-12-21 23:17:00,042 INFO L189 CegarLoopUtils]: For program point L108(lines 108 112) no Hoare annotation was computed. [2020-12-21 23:17:00,043 INFO L185 CegarLoopUtils]: At program point L75(lines 74 185) the Hoare annotation is: (and (<= ULTIMATE.start_main_~blastFlag~0 3) (<= 8672 ULTIMATE.start_main_~s__state~0)) [2020-12-21 23:17:00,043 INFO L189 CegarLoopUtils]: For program point L42(lines 42 201) no Hoare annotation was computed. [2020-12-21 23:17:00,043 INFO L185 CegarLoopUtils]: At program point L67(lines 66 189) the Hoare annotation is: (let ((.cse0 (<= 8640 ULTIMATE.start_main_~s__state~0))) (or (and .cse0 (not (= ULTIMATE.start_main_~s__hit~0 0)) (<= ULTIMATE.start_main_~blastFlag~0 3)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 2)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 0)) (and .cse0 (= ULTIMATE.start_main_~blastFlag~0 1)))) [2020-12-21 23:17:00,043 INFO L189 CegarLoopUtils]: For program point L34(lines 34 205) no Hoare annotation was computed. [2020-12-21 23:17:00,043 INFO L185 CegarLoopUtils]: At program point L59(lines 58 193) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,044 INFO L185 CegarLoopUtils]: At program point L51(lines 50 197) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,044 INFO L185 CegarLoopUtils]: At program point L175(lines 10 219) the Hoare annotation is: false [2020-12-21 23:17:00,044 INFO L185 CegarLoopUtils]: At program point L43(lines 42 201) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,044 INFO L185 CegarLoopUtils]: At program point L35(lines 34 205) the Hoare annotation is: (or (= ULTIMATE.start_main_~blastFlag~0 1) (= ULTIMATE.start_main_~blastFlag~0 2) (= ULTIMATE.start_main_~blastFlag~0 0)) [2020-12-21 23:17:00,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.12 11:17:00 BoogieIcfgContainer [2020-12-21 23:17:00,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-21 23:17:00,070 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-21 23:17:00,070 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-21 23:17:00,070 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-21 23:17:00,071 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 11:16:57" (3/4) ... [2020-12-21 23:17:00,074 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-21 23:17:00,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-12-21 23:17:00,088 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-21 23:17:00,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:17:00,089 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-21 23:17:00,158 INFO L141 WitnessManager]: Wrote witness to /storage/repos/svcomp/c/openssl-simplified/s3_srvr_1a.cil.c-witness.graphml [2020-12-21 23:17:00,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-21 23:17:00,161 INFO L168 Benchmark]: Toolchain (without parser) took 3436.66 ms. Allocated memory was 157.3 MB in the beginning and 190.8 MB in the end (delta: 33.6 MB). Free memory was 133.2 MB in the beginning and 129.8 MB in the end (delta: 3.5 MB). Peak memory consumption was 37.8 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,162 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 157.3 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-12-21 23:17:00,162 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.50 ms. Allocated memory is still 157.3 MB. Free memory was 133.1 MB in the beginning and 122.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,163 INFO L168 Benchmark]: Boogie Procedure Inliner took 36.38 ms. Allocated memory is still 157.3 MB. Free memory was 122.5 MB in the beginning and 120.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,164 INFO L168 Benchmark]: Boogie Preprocessor took 29.15 ms. Allocated memory is still 157.3 MB. Free memory was 120.9 MB in the beginning and 119.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,164 INFO L168 Benchmark]: RCFGBuilder took 594.70 ms. Allocated memory is still 157.3 MB. Free memory was 119.6 MB in the beginning and 132.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,165 INFO L168 Benchmark]: TraceAbstraction took 2333.09 ms. Allocated memory was 157.3 MB in the beginning and 190.8 MB in the end (delta: 33.6 MB). Free memory was 132.2 MB in the beginning and 134.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,165 INFO L168 Benchmark]: Witness Printer took 89.13 ms. Allocated memory is still 190.8 MB. Free memory was 133.4 MB in the beginning and 129.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-12-21 23:17:00,169 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 157.3 MB. Free memory is still 132.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 338.50 ms. Allocated memory is still 157.3 MB. Free memory was 133.1 MB in the beginning and 122.5 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 36.38 ms. Allocated memory is still 157.3 MB. Free memory was 122.5 MB in the beginning and 120.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 29.15 ms. Allocated memory is still 157.3 MB. Free memory was 120.9 MB in the beginning and 119.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 594.70 ms. Allocated memory is still 157.3 MB. Free memory was 119.6 MB in the beginning and 132.7 MB in the end (delta: -13.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2333.09 ms. Allocated memory was 157.3 MB in the beginning and 190.8 MB in the end (delta: 33.6 MB). Free memory was 132.2 MB in the beginning and 134.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 81.8 MB. Max. memory is 8.0 GB. * Witness Printer took 89.13 ms. Allocated memory is still 190.8 MB. Free memory was 133.4 MB in the beginning and 129.8 MB in the end (delta: 3.7 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 217]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 115]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 58]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 38]: Loop Invariant Derived loop invariant: ((s__state == 8512 && blastFlag == 2) || (blastFlag == 1 && s__state == 8512)) || (s__state == 8512 && blastFlag == 0) - InvariantResult [Line: 70]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || (8640 <= s__state && blastFlag == 2)) || (8640 <= s__state && blastFlag == 0)) || (8640 <= s__state && blastFlag == 1) - InvariantResult [Line: 107]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: (((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || blastFlag == 1) || blastFlag == 2) || blastFlag == 0) || (blastFlag <= 3 && 8672 <= s__state) - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 62]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 74]: Loop Invariant Derived loop invariant: blastFlag <= 3 && 8672 <= s__state - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 54]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (blastFlag == 1 || blastFlag == 2) || blastFlag == 0 - InvariantResult [Line: 66]: Loop Invariant Derived loop invariant: ((((8640 <= s__state && !(s__hit == 0)) && blastFlag <= 3) || (8640 <= s__state && blastFlag == 2)) || (8640 <= s__state && blastFlag == 0)) || (8640 <= s__state && blastFlag == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 46 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.8s, OverallIterations: 8, TraceHistogramMax: 6, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 613 SDtfs, 246 SDslu, 321 SDs, 0 SdLazy, 239 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=6, 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, 8 MinimizatonAttempts, 12 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 18 LocationsWithAnnotation, 18 PreInvPairs, 85 NumberOfFragments, 226 HoareAnnotationTreeSize, 18 FomulaSimplifications, 203 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 18 FomulaSimplificationsInter, 165 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 262 NumberOfCodeBlocks, 262 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 254 ConstructedInterpolants, 0 QuantifiedInterpolants, 24506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 218/218 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...