/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:21:31,753 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:21:31,756 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:21:31,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:21:31,774 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:21:31,776 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:21:31,778 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:21:31,791 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:21:31,793 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:21:31,794 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:21:31,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:21:31,798 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:21:31,799 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:21:31,801 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:21:31,802 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:21:31,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:21:31,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:21:31,809 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:21:31,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:21:31,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:21:31,819 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:21:31,820 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:21:31,821 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:21:31,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:21:31,824 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 13:21:31,824 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 13:21:31,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 13:21:31,828 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 13:21:31,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 13:21:31,830 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 13:21:31,830 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 13:21:31,831 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 13:21:31,832 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 13:21:31,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 13:21:31,835 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 13:21:31,836 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 13:21:31,838 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 13:21:31,839 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 13:21:31,839 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:21:31,840 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:21:31,841 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:21:31,842 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:21:31,854 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:21:31,854 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:21:31,856 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:21:31,856 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:21:31,856 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:21:31,856 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:21:31,856 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:21:31,857 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:21:31,857 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:21:31,857 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:21:31,858 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:21:31,858 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:21:31,858 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:21:31,859 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:21:31,859 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:21:31,859 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:21:31,860 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:21:31,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:21:31,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:21:31,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:21:31,860 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:21:31,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:21:31,861 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:21:32,144 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:21:32,157 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:21:32,161 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:21:32,162 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:21:32,163 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:21:32,164 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-07-07 13:21:32,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d4d8dbfc/f05b91f349b1440287e6fe0a43df6ee5/FLAG8fe903591 [2020-07-07 13:21:32,674 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:21:32,674 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ssh-simplified/s3_srvr_1a.cil.c [2020-07-07 13:21:32,683 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d4d8dbfc/f05b91f349b1440287e6fe0a43df6ee5/FLAG8fe903591 [2020-07-07 13:21:33,079 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4d4d8dbfc/f05b91f349b1440287e6fe0a43df6ee5 [2020-07-07 13:21:33,088 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:21:33,091 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:21:33,092 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:21:33,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:21:33,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:21:33,097 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562c5e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33, skipping insertion in model container [2020-07-07 13:21:33,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:21:33,143 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:21:33,348 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:21:33,354 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:21:33,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:21:33,483 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:21:33,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33 WrapperNode [2020-07-07 13:21:33,484 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:21:33,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:21:33,486 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:21:33,486 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:21:33,500 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (1/1) ... [2020-07-07 13:21:33,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:21:33,548 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:21:33,548 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:21:33,548 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:21:33,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (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 [2020-07-07 13:21:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:21:33,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:21:33,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_long [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:21:33,617 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:21:34,022 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:21:34,022 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:21:34,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:21:34 BoogieIcfgContainer [2020-07-07 13:21:34,027 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:21:34,029 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:21:34,029 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:21:34,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:21:34,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:21:33" (1/3) ... [2020-07-07 13:21:34,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1ddf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:21:34, skipping insertion in model container [2020-07-07 13:21:34,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:21:33" (2/3) ... [2020-07-07 13:21:34,034 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f1ddf7c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:21:34, skipping insertion in model container [2020-07-07 13:21:34,034 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:21:34" (3/3) ... [2020-07-07 13:21:34,036 INFO L109 eAbstractionObserver]: Analyzing ICFG s3_srvr_1a.cil.c [2020-07-07 13:21:34,047 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:21:34,056 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:21:34,068 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:21:34,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:21:34,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:21:34,096 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:21:34,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:21:34,096 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:21:34,096 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:21:34,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:21:34,097 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:21:34,115 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states. [2020-07-07 13:21:34,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 13:21:34,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:34,129 INFO L422 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] [2020-07-07 13:21:34,129 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:34,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:34,136 INFO L82 PathProgramCache]: Analyzing trace with hash 766781838, now seen corresponding path program 1 times [2020-07-07 13:21:34,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:34,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114108496] [2020-07-07 13:21:34,147 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:34,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:34,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:34,319 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:34,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114108496] [2020-07-07 13:21:34,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:34,325 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:34,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567982226] [2020-07-07 13:21:34,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:34,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:34,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:34,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:34,351 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 3 states. [2020-07-07 13:21:34,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:34,632 INFO L93 Difference]: Finished difference Result 198 states and 286 transitions. [2020-07-07 13:21:34,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:34,635 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 26 [2020-07-07 13:21:34,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:34,649 INFO L225 Difference]: With dead ends: 198 [2020-07-07 13:21:34,650 INFO L226 Difference]: Without dead ends: 128 [2020-07-07 13:21:34,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:34,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2020-07-07 13:21:34,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 128. [2020-07-07 13:21:34,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-07-07 13:21:34,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 171 transitions. [2020-07-07 13:21:34,723 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 171 transitions. Word has length 26 [2020-07-07 13:21:34,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:34,724 INFO L479 AbstractCegarLoop]: Abstraction has 128 states and 171 transitions. [2020-07-07 13:21:34,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:34,725 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 171 transitions. [2020-07-07 13:21:34,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-07 13:21:34,726 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:34,726 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-07 13:21:34,727 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:21:34,727 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:34,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:34,728 INFO L82 PathProgramCache]: Analyzing trace with hash -184994456, now seen corresponding path program 1 times [2020-07-07 13:21:34,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:34,728 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774216735] [2020-07-07 13:21:34,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:34,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:34,823 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:34,824 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774216735] [2020-07-07 13:21:34,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:34,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:34,825 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901977374] [2020-07-07 13:21:34,826 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:34,826 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:34,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:34,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:34,827 INFO L87 Difference]: Start difference. First operand 128 states and 171 transitions. Second operand 3 states. [2020-07-07 13:21:34,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:34,941 INFO L93 Difference]: Finished difference Result 233 states and 325 transitions. [2020-07-07 13:21:34,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:34,942 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-07 13:21:34,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:34,945 INFO L225 Difference]: With dead ends: 233 [2020-07-07 13:21:34,945 INFO L226 Difference]: Without dead ends: 177 [2020-07-07 13:21:34,947 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:34,949 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-07 13:21:34,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2020-07-07 13:21:34,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 177 states. [2020-07-07 13:21:34,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 240 transitions. [2020-07-07 13:21:34,980 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 240 transitions. Word has length 32 [2020-07-07 13:21:34,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:34,980 INFO L479 AbstractCegarLoop]: Abstraction has 177 states and 240 transitions. [2020-07-07 13:21:34,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:34,981 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 240 transitions. [2020-07-07 13:21:34,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 13:21:34,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:34,983 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:34,984 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:21:34,984 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:34,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:34,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1532764802, now seen corresponding path program 1 times [2020-07-07 13:21:34,985 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:34,985 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [542282592] [2020-07-07 13:21:34,986 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:35,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:35,049 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:35,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [542282592] [2020-07-07 13:21:35,051 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:35,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:35,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091978233] [2020-07-07 13:21:35,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:35,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:35,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:35,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,054 INFO L87 Difference]: Start difference. First operand 177 states and 240 transitions. Second operand 3 states. [2020-07-07 13:21:35,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:35,228 INFO L93 Difference]: Finished difference Result 375 states and 534 transitions. [2020-07-07 13:21:35,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:35,228 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-07 13:21:35,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:35,231 INFO L225 Difference]: With dead ends: 375 [2020-07-07 13:21:35,232 INFO L226 Difference]: Without dead ends: 221 [2020-07-07 13:21:35,233 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-07-07 13:21:35,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 213. [2020-07-07 13:21:35,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-07-07 13:21:35,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 276 transitions. [2020-07-07 13:21:35,261 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 276 transitions. Word has length 40 [2020-07-07 13:21:35,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:35,262 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 276 transitions. [2020-07-07 13:21:35,262 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:35,262 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 276 transitions. [2020-07-07 13:21:35,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-07-07 13:21:35,264 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:35,265 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:35,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:21:35,265 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:35,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:35,266 INFO L82 PathProgramCache]: Analyzing trace with hash -1529904866, now seen corresponding path program 1 times [2020-07-07 13:21:35,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:35,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [558414146] [2020-07-07 13:21:35,266 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:35,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:35,322 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:35,323 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [558414146] [2020-07-07 13:21:35,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:35,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:35,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139818475] [2020-07-07 13:21:35,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:35,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:35,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:35,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,326 INFO L87 Difference]: Start difference. First operand 213 states and 276 transitions. Second operand 3 states. [2020-07-07 13:21:35,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:35,427 INFO L93 Difference]: Finished difference Result 403 states and 535 transitions. [2020-07-07 13:21:35,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:35,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2020-07-07 13:21:35,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:35,431 INFO L225 Difference]: With dead ends: 403 [2020-07-07 13:21:35,431 INFO L226 Difference]: Without dead ends: 274 [2020-07-07 13:21:35,433 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-07-07 13:21:35,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2020-07-07 13:21:35,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-07-07 13:21:35,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 358 transitions. [2020-07-07 13:21:35,500 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 358 transitions. Word has length 40 [2020-07-07 13:21:35,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:35,500 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 358 transitions. [2020-07-07 13:21:35,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:35,501 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 358 transitions. [2020-07-07 13:21:35,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-07-07 13:21:35,510 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:35,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:35,513 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:21:35,513 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:35,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:35,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1348776400, now seen corresponding path program 1 times [2020-07-07 13:21:35,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:35,515 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813194329] [2020-07-07 13:21:35,515 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:35,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:35,606 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:35,607 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813194329] [2020-07-07 13:21:35,607 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:35,607 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:35,608 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [628191186] [2020-07-07 13:21:35,608 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:35,608 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:35,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:35,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,609 INFO L87 Difference]: Start difference. First operand 274 states and 358 transitions. Second operand 3 states. [2020-07-07 13:21:35,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:35,688 INFO L93 Difference]: Finished difference Result 527 states and 700 transitions. [2020-07-07 13:21:35,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:35,688 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 70 [2020-07-07 13:21:35,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:35,691 INFO L225 Difference]: With dead ends: 527 [2020-07-07 13:21:35,691 INFO L226 Difference]: Without dead ends: 337 [2020-07-07 13:21:35,693 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2020-07-07 13:21:35,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 335. [2020-07-07 13:21:35,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2020-07-07 13:21:35,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 442 transitions. [2020-07-07 13:21:35,720 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 442 transitions. Word has length 70 [2020-07-07 13:21:35,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:35,721 INFO L479 AbstractCegarLoop]: Abstraction has 335 states and 442 transitions. [2020-07-07 13:21:35,721 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:35,721 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 442 transitions. [2020-07-07 13:21:35,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-07-07 13:21:35,723 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:35,724 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:35,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:21:35,724 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:35,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:35,725 INFO L82 PathProgramCache]: Analyzing trace with hash 1264034378, now seen corresponding path program 1 times [2020-07-07 13:21:35,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:35,725 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1055101078] [2020-07-07 13:21:35,725 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:35,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:35,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:35,777 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:35,777 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1055101078] [2020-07-07 13:21:35,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:35,778 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:35,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699533809] [2020-07-07 13:21:35,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:35,779 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:35,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:35,779 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,780 INFO L87 Difference]: Start difference. First operand 335 states and 442 transitions. Second operand 3 states. [2020-07-07 13:21:35,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:35,920 INFO L93 Difference]: Finished difference Result 637 states and 866 transitions. [2020-07-07 13:21:35,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:35,921 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 74 [2020-07-07 13:21:35,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:35,923 INFO L225 Difference]: With dead ends: 637 [2020-07-07 13:21:35,924 INFO L226 Difference]: Without dead ends: 243 [2020-07-07 13:21:35,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:35,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-07-07 13:21:35,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 240. [2020-07-07 13:21:35,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 240 states. [2020-07-07 13:21:35,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 299 transitions. [2020-07-07 13:21:35,947 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 299 transitions. Word has length 74 [2020-07-07 13:21:35,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:35,948 INFO L479 AbstractCegarLoop]: Abstraction has 240 states and 299 transitions. [2020-07-07 13:21:35,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:35,948 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 299 transitions. [2020-07-07 13:21:35,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-07-07 13:21:35,950 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:21:35,951 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:21:35,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:21:35,952 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:21:35,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:21:35,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1725408203, now seen corresponding path program 1 times [2020-07-07 13:21:35,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:21:35,953 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [882845481] [2020-07-07 13:21:35,954 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:21:35,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:21:36,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:21:36,051 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:21:36,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [882845481] [2020-07-07 13:21:36,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:21:36,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 13:21:36,052 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [489629209] [2020-07-07 13:21:36,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 13:21:36,053 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:21:36,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 13:21:36,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:36,054 INFO L87 Difference]: Start difference. First operand 240 states and 299 transitions. Second operand 3 states. [2020-07-07 13:21:36,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:21:36,084 INFO L93 Difference]: Finished difference Result 365 states and 436 transitions. [2020-07-07 13:21:36,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 13:21:36,084 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 104 [2020-07-07 13:21:36,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:21:36,085 INFO L225 Difference]: With dead ends: 365 [2020-07-07 13:21:36,085 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:21:36,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 13:21:36,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:21:36,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:21:36,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:21:36,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:21:36,088 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 104 [2020-07-07 13:21:36,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:21:36,088 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:21:36,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 13:21:36,088 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:21:36,089 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:21:36,089 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:21:36,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:21:37,063 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:21:37,063 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:21:37,063 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-07 13:21:37,063 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 13:21:37,063 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 13:21:37,064 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-07 13:21:37,064 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 8 217) the Hoare annotation is: true [2020-07-07 13:21:37,064 INFO L264 CegarLoopResult]: At program point L151-1(lines 74 183) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and (<= main_~blastFlag~0 2) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0))) [2020-07-07 13:21:37,064 INFO L264 CegarLoopResult]: At program point L52(lines 52 193) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,064 INFO L264 CegarLoopResult]: At program point L85-1(lines 74 183) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,065 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-07 13:21:37,065 INFO L264 CegarLoopResult]: At program point L135(lines 135 139) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,065 INFO L264 CegarLoopResult]: At program point L69(lines 68 185) the Hoare annotation is: (and (<= 8656 main_~s__state~0) (<= main_~blastFlag~0 3)) [2020-07-07 13:21:37,065 INFO L264 CegarLoopResult]: At program point L36(lines 36 201) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,065 INFO L264 CegarLoopResult]: At program point L152(line 152) the Hoare annotation is: (and (not (= 0 main_~s__hit~0)) (<= main_~blastFlag~0 3) (<= 8640 main_~s__state~0)) [2020-07-07 13:21:37,065 INFO L264 CegarLoopResult]: At program point L86(line 86) the Hoare annotation is: (<= main_~blastFlag~0 1) [2020-07-07 13:21:37,066 INFO L264 CegarLoopResult]: At program point L53(lines 52 193) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,066 INFO L271 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: true [2020-07-07 13:21:37,066 INFO L264 CegarLoopResult]: At program point L136(line 136) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,066 INFO L264 CegarLoopResult]: At program point L169-1(lines 74 183) the Hoare annotation is: (and (<= 8656 main_~s__state~0) (<= main_~blastFlag~0 3)) [2020-07-07 13:21:37,066 INFO L264 CegarLoopResult]: At program point L37(lines 36 201) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,067 INFO L264 CegarLoopResult]: At program point L120(lines 113 122) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,067 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 8 217) the Hoare annotation is: true [2020-07-07 13:21:37,067 INFO L264 CegarLoopResult]: At program point L170(line 170) the Hoare annotation is: false [2020-07-07 13:21:37,067 INFO L264 CegarLoopResult]: At program point L138(line 138) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,067 INFO L264 CegarLoopResult]: At program point L105(lines 105 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,067 INFO L264 CegarLoopResult]: At program point L72(lines 72 183) the Hoare annotation is: (or (and (<= main_~blastFlag~0 3) (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2)) [2020-07-07 13:21:37,068 INFO L264 CegarLoopResult]: At program point L89(line 89) the Hoare annotation is: (or (and (not (= 0 main_~s__hit~0)) (<= main_~blastFlag~0 2)) (<= main_~blastFlag~0 1)) [2020-07-07 13:21:37,068 INFO L264 CegarLoopResult]: At program point L56(lines 56 191) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,068 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,068 INFO L264 CegarLoopResult]: At program point L172(lines 172 174) the Hoare annotation is: (and (<= 8656 main_~s__state~0) (<= main_~blastFlag~0 3)) [2020-07-07 13:21:37,068 INFO L264 CegarLoopResult]: At program point L106(lines 106 110) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,069 INFO L264 CegarLoopResult]: At program point L73(lines 72 183) the Hoare annotation is: (and (<= 8656 main_~s__state~0) (<= main_~blastFlag~0 3)) [2020-07-07 13:21:37,069 INFO L264 CegarLoopResult]: At program point L40(lines 40 199) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,069 INFO L264 CegarLoopResult]: At program point L57(lines 56 191) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,069 INFO L264 CegarLoopResult]: At program point L173(lines 8 217) the Hoare annotation is: false [2020-07-07 13:21:37,069 INFO L264 CegarLoopResult]: At program point L107(line 107) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,069 INFO L264 CegarLoopResult]: At program point L41(lines 40 199) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,070 INFO L264 CegarLoopResult]: At program point L157(line 157) the Hoare annotation is: (and (<= main_~blastFlag~0 2) (<= 8640 main_~s__state~0)) [2020-07-07 13:21:37,070 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,070 INFO L264 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,070 INFO L271 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-07-07 13:21:37,070 INFO L271 CegarLoopResult]: At program point L10-1(line 10) the Hoare annotation is: true [2020-07-07 13:21:37,071 INFO L271 CegarLoopResult]: At program point L10-2(line 10) the Hoare annotation is: true [2020-07-07 13:21:37,071 INFO L264 CegarLoopResult]: At program point L60(lines 60 189) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,071 INFO L264 CegarLoopResult]: At program point L176(lines 22 211) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,071 INFO L264 CegarLoopResult]: At program point L44(lines 44 197) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,071 INFO L271 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: true [2020-07-07 13:21:37,071 INFO L271 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: true [2020-07-07 13:21:37,072 INFO L271 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: true [2020-07-07 13:21:37,072 INFO L264 CegarLoopResult]: At program point L61(lines 60 189) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,072 INFO L264 CegarLoopResult]: At program point L177(line 177) the Hoare annotation is: (let ((.cse0 (<= 8656 main_~s__state~0))) (or (and .cse0 (<= main_~blastFlag~0 1)) (and .cse0 (not (= 0 main_~s__hit~0)) (<= main_~blastFlag~0 3)))) [2020-07-07 13:21:37,072 INFO L264 CegarLoopResult]: At program point L45(lines 44 197) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,072 INFO L264 CegarLoopResult]: At program point L78-1(lines 78 80) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,073 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-07-07 13:21:37,073 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-07-07 13:21:37,073 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-07-07 13:21:37,073 INFO L264 CegarLoopResult]: At program point L29(lines 29 204) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,073 INFO L264 CegarLoopResult]: At program point L112(lines 105 123) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,073 INFO L264 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: (<= main_~blastFlag~0 0) [2020-07-07 13:21:37,074 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-07-07 13:21:37,074 INFO L271 CegarLoopResult]: At program point L13-1(line 13) the Hoare annotation is: true [2020-07-07 13:21:37,074 INFO L271 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: true [2020-07-07 13:21:37,074 INFO L264 CegarLoopResult]: At program point L162-1(lines 162 164) the Hoare annotation is: (and (<= 8656 main_~s__state~0) (<= main_~blastFlag~0 3)) [2020-07-07 13:21:37,074 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 215) the Hoare annotation is: false [2020-07-07 13:21:37,074 INFO L264 CegarLoopResult]: At program point L30(lines 29 204) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,075 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 8 217) the Hoare annotation is: true [2020-07-07 13:21:37,075 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-07 13:21:37,075 INFO L264 CegarLoopResult]: At program point L163(line 163) the Hoare annotation is: (and (<= 8656 main_~s__state~0) (<= main_~blastFlag~0 2)) [2020-07-07 13:21:37,075 INFO L264 CegarLoopResult]: At program point L64(lines 64 187) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,075 INFO L271 CegarLoopResult]: At program point L213(lines 8 217) the Hoare annotation is: true [2020-07-07 13:21:37,076 INFO L264 CegarLoopResult]: At program point L114(lines 114 118) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,076 INFO L264 CegarLoopResult]: At program point L48(lines 48 195) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,076 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-07 13:21:37,076 INFO L264 CegarLoopResult]: At program point L65(lines 64 187) the Hoare annotation is: (let ((.cse0 (<= 8640 main_~s__state~0))) (or (and (<= main_~blastFlag~0 2) .cse0) (and (not (= 0 main_~s__hit~0)) (<= main_~blastFlag~0 3) .cse0))) [2020-07-07 13:21:37,076 INFO L264 CegarLoopResult]: At program point L32(lines 32 203) the Hoare annotation is: (let ((.cse0 (<= main_~blastFlag~0 3))) (or (and (<= 8656 main_~s__state~0) .cse0) (and (not (= 0 main_~s__hit~0)) .cse0 (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2))) [2020-07-07 13:21:37,077 INFO L264 CegarLoopResult]: At program point L49(lines 48 195) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,077 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-07 13:21:37,077 INFO L264 CegarLoopResult]: At program point L33(lines 32 203) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,077 INFO L271 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-07-07 13:21:37,077 INFO L264 CegarLoopResult]: At program point L216(line 216) the Hoare annotation is: false [2020-07-07 13:21:37,077 INFO L264 CegarLoopResult]: At program point L117(line 117) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,078 INFO L264 CegarLoopResult]: At program point L134(line 134) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,078 INFO L264 CegarLoopResult]: At program point L134-1(line 134) the Hoare annotation is: (<= main_~blastFlag~0 2) [2020-07-07 13:21:37,078 INFO L264 CegarLoopResult]: At program point L68(lines 68 185) the Hoare annotation is: (or (and (<= main_~blastFlag~0 3) (<= 8640 main_~s__state~0)) (<= main_~blastFlag~0 2)) [2020-07-07 13:21:37,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 01:21:37 BoogieIcfgContainer [2020-07-07 13:21:37,104 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 13:21:37,107 INFO L168 Benchmark]: Toolchain (without parser) took 4016.12 ms. Allocated memory was 138.4 MB in the beginning and 246.4 MB in the end (delta: 108.0 MB). Free memory was 102.2 MB in the beginning and 187.3 MB in the end (delta: -85.1 MB). Peak memory consumption was 115.0 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:37,108 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-07 13:21:37,110 INFO L168 Benchmark]: CACSL2BoogieTranslator took 392.87 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 182.7 MB in the end (delta: -80.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:37,110 INFO L168 Benchmark]: Boogie Preprocessor took 62.31 ms. Allocated memory is still 203.4 MB. Free memory was 182.7 MB in the beginning and 180.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:37,111 INFO L168 Benchmark]: RCFGBuilder took 479.32 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 158.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:37,112 INFO L168 Benchmark]: TraceAbstraction took 3075.55 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 157.5 MB in the beginning and 187.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. [2020-07-07 13:21:37,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 138.4 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 392.87 ms. Allocated memory was 138.4 MB in the beginning and 203.4 MB in the end (delta: 65.0 MB). Free memory was 102.0 MB in the beginning and 182.7 MB in the end (delta: -80.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 62.31 ms. Allocated memory is still 203.4 MB. Free memory was 182.7 MB in the beginning and 180.3 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 479.32 ms. Allocated memory is still 203.4 MB. Free memory was 180.3 MB in the beginning and 158.1 MB in the end (delta: 22.2 MB). Peak memory consumption was 22.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3075.55 ms. Allocated memory was 203.4 MB in the beginning and 246.4 MB in the end (delta: 43.0 MB). Free memory was 157.5 MB in the beginning and 187.3 MB in the end (delta: -29.9 MB). Peak memory consumption was 105.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 215]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 64]: Loop Invariant Derived loop invariant: (blastFlag <= 2 && 8640 <= s__state) || ((!(0 == s__hit) && blastFlag <= 3) && 8640 <= s__state) - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 44]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 113]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 56]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 68]: Loop Invariant Derived loop invariant: 8656 <= s__state && blastFlag <= 3 - InvariantResult [Line: 105]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: ((8656 <= s__state && blastFlag <= 3) || ((!(0 == s__hit) && blastFlag <= 3) && 8640 <= s__state)) || blastFlag <= 2 - InvariantResult [Line: 48]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 60]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 40]: Loop Invariant Derived loop invariant: blastFlag <= 2 - InvariantResult [Line: 72]: Loop Invariant Derived loop invariant: 8656 <= s__state && blastFlag <= 3 - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 52]: Loop Invariant Derived loop invariant: blastFlag <= 2 - ProcedureContractResult [Line: 8]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 85 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 7, TraceHistogramMax: 6, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 696 SDtfs, 313 SDslu, 519 SDs, 0 SdLazy, 210 SolverSat, 60 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 13 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 85 LocationsWithAnnotation, 85 PreInvPairs, 407 NumberOfFragments, 525 HoareAnnotationTreeSize, 85 FomulaSimplifications, 3335 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 85 FomulaSimplificationsInter, 261 FormulaSimplificationTreeSizeReductionInter, 0.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...