/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:16:29,049 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:16:29,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:16:29,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:16:29,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:16:29,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:16:29,081 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:16:29,095 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:16:29,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:16:29,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:16:29,101 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:16:29,105 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:16:29,105 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:16:29,110 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:16:29,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:16:29,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:16:29,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:16:29,122 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:16:29,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:16:29,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:16:29,135 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:16:29,138 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:16:29,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:16:29,140 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:16:29,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 12:16:29,156 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:16:29,157 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:16:29,159 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:16:29,160 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 12:16:29,179 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:16:29,180 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:16:29,181 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:16:29,182 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:16:29,182 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:16:29,182 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:16:29,182 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:16:29,183 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:16:29,183 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:16:29,183 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:16:29,183 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:16:29,183 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:16:29,184 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:16:29,184 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:16:29,184 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:16:29,184 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:16:29,184 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:16:29,185 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:16:29,185 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:16:29,185 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:16:29,185 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:16:29,186 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:16:29,186 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:16:29,186 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:16:29,186 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:16:29,186 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:16:29,187 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:16:29,187 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:16:29,187 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:16:29,187 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:16:29,541 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:16:29,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:16:29,563 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:16:29,565 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:16:29,566 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:16:29,567 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-17 12:16:29,648 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e652a5b0e/97a4b114127740de85babe1ebbc002e4/FLAGab373c7f4 [2020-07-17 12:16:30,272 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:16:30,273 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-17 12:16:30,285 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e652a5b0e/97a4b114127740de85babe1ebbc002e4/FLAGab373c7f4 [2020-07-17 12:16:30,617 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e652a5b0e/97a4b114127740de85babe1ebbc002e4 [2020-07-17 12:16:30,627 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:16:30,630 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:16:30,632 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:16:30,633 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:16:30,638 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:16:30,639 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:16:30" (1/1) ... [2020-07-17 12:16:30,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51df8e2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:30, skipping insertion in model container [2020-07-17 12:16:30,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:16:30" (1/1) ... [2020-07-17 12:16:30,656 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:16:30,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:16:31,103 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:16:31,119 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:16:31,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:16:31,262 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:16:31,264 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31 WrapperNode [2020-07-17 12:16:31,265 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:16:31,267 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:16:31,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:16:31,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:16:31,419 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,432 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,447 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,449 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (1/1) ... [2020-07-17 12:16:31,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:16:31,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:16:31,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:16:31,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:16:31,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (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 [2020-07-17 12:16:31,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:16:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:16:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-17 12:16:31,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:16:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:16:31,542 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-17 12:16:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-17 12:16:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 12:16:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:16:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:16:31,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:16:31,544 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:16:32,114 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:16:32,115 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-17 12:16:32,122 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:16:32 BoogieIcfgContainer [2020-07-17 12:16:32,123 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:16:32,125 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:16:32,125 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:16:32,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:16:32,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:16:30" (1/3) ... [2020-07-17 12:16:32,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a093d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:16:32, skipping insertion in model container [2020-07-17 12:16:32,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:16:31" (2/3) ... [2020-07-17 12:16:32,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a093d3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:16:32, skipping insertion in model container [2020-07-17 12:16:32,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:16:32" (3/3) ... [2020-07-17 12:16:32,134 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-07-17 12:16:32,150 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:16:32,158 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-07-17 12:16:32,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-07-17 12:16:32,209 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:16:32,210 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:16:32,210 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:16:32,210 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:16:32,210 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:16:32,210 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:16:32,211 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:16:32,211 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:16:32,238 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-07-17 12:16:32,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-17 12:16:32,247 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:32,248 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:32,249 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:32,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:32,257 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-07-17 12:16:32,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:32,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232844167] [2020-07-17 12:16:32,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:32,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:32,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:32,539 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232844167] [2020-07-17 12:16:32,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:32,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 12:16:32,542 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616478533] [2020-07-17 12:16:32,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 12:16:32,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:32,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 12:16:32,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 12:16:32,583 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-07-17 12:16:32,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:32,757 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-07-17 12:16:32,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-17 12:16:32,760 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-17 12:16:32,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:32,776 INFO L225 Difference]: With dead ends: 93 [2020-07-17 12:16:32,777 INFO L226 Difference]: Without dead ends: 80 [2020-07-17 12:16:32,782 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:16:32,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-17 12:16:32,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-17 12:16:32,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-17 12:16:32,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-07-17 12:16:32,852 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-07-17 12:16:32,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:32,853 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-07-17 12:16:32,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 12:16:32,854 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-07-17 12:16:32,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-17 12:16:32,855 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:32,855 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] [2020-07-17 12:16:32,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:16:32,856 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:32,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:32,857 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-07-17 12:16:32,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:32,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939749486] [2020-07-17 12:16:32,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:32,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:32,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:32,991 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939749486] [2020-07-17 12:16:32,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:32,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 12:16:32,992 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899888467] [2020-07-17 12:16:32,994 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 12:16:32,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:32,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 12:16:32,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:16:32,996 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-07-17 12:16:33,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:33,242 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-07-17 12:16:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:33,243 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-07-17 12:16:33,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:33,246 INFO L225 Difference]: With dead ends: 80 [2020-07-17 12:16:33,246 INFO L226 Difference]: Without dead ends: 78 [2020-07-17 12:16:33,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:33,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-17 12:16:33,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-17 12:16:33,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-17 12:16:33,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-07-17 12:16:33,264 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-07-17 12:16:33,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:33,264 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-07-17 12:16:33,264 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 12:16:33,265 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-07-17 12:16:33,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-17 12:16:33,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:33,266 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] [2020-07-17 12:16:33,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 12:16:33,267 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:33,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:33,268 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-07-17 12:16:33,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:33,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273569817] [2020-07-17 12:16:33,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:33,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:33,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:33,445 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273569817] [2020-07-17 12:16:33,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:33,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 12:16:33,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217580272] [2020-07-17 12:16:33,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:16:33,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:33,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:16:33,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:16:33,448 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-07-17 12:16:33,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:33,697 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-07-17 12:16:33,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:33,698 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-17 12:16:33,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:33,700 INFO L225 Difference]: With dead ends: 101 [2020-07-17 12:16:33,700 INFO L226 Difference]: Without dead ends: 99 [2020-07-17 12:16:33,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:16:33,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-07-17 12:16:33,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-07-17 12:16:33,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-17 12:16:33,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-07-17 12:16:33,713 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-07-17 12:16:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:33,713 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-07-17 12:16:33,713 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:16:33,713 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-17 12:16:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-17 12:16:33,714 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:33,714 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] [2020-07-17 12:16:33,715 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 12:16:33,715 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:33,716 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-07-17 12:16:33,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:33,716 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966023992] [2020-07-17 12:16:33,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:33,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:33,794 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:33,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966023992] [2020-07-17 12:16:33,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:33,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:33,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520521210] [2020-07-17 12:16:33,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:33,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:33,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:33,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:33,797 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-07-17 12:16:33,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:33,950 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-17 12:16:33,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:33,951 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-07-17 12:16:33,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:33,952 INFO L225 Difference]: With dead ends: 76 [2020-07-17 12:16:33,953 INFO L226 Difference]: Without dead ends: 74 [2020-07-17 12:16:33,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:33,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-17 12:16:33,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-17 12:16:33,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-17 12:16:33,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-07-17 12:16:33,964 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-07-17 12:16:33,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:33,965 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-07-17 12:16:33,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-17 12:16:33,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 12:16:33,966 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:33,966 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] [2020-07-17 12:16:33,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 12:16:33,967 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:33,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:33,968 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-07-17 12:16:33,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:33,969 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272898667] [2020-07-17 12:16:33,969 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:33,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:34,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:34,104 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:34,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272898667] [2020-07-17 12:16:34,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:34,106 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:34,106 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986867116] [2020-07-17 12:16:34,106 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:34,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:34,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:34,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:34,108 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-07-17 12:16:34,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:34,732 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-07-17 12:16:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:16:34,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-17 12:16:34,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:34,735 INFO L225 Difference]: With dead ends: 141 [2020-07-17 12:16:34,737 INFO L226 Difference]: Without dead ends: 139 [2020-07-17 12:16:34,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:34,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-17 12:16:34,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-07-17 12:16:34,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-17 12:16:34,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-17 12:16:34,774 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-07-17 12:16:34,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:34,778 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-17 12:16:34,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:34,778 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-17 12:16:34,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-17 12:16:34,780 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:34,780 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] [2020-07-17 12:16:34,780 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 12:16:34,781 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:34,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:34,782 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-07-17 12:16:34,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:34,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012234758] [2020-07-17 12:16:34,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:34,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:34,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:34,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:34,950 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012234758] [2020-07-17 12:16:34,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:34,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:34,951 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765735783] [2020-07-17 12:16:34,952 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:34,952 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:34,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:34,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:34,953 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-07-17 12:16:35,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:35,355 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2020-07-17 12:16:35,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:16:35,356 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-17 12:16:35,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:35,357 INFO L225 Difference]: With dead ends: 108 [2020-07-17 12:16:35,357 INFO L226 Difference]: Without dead ends: 106 [2020-07-17 12:16:35,358 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:35,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-07-17 12:16:35,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2020-07-17 12:16:35,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-17 12:16:35,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-07-17 12:16:35,368 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-07-17 12:16:35,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:35,368 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-07-17 12:16:35,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:35,369 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-07-17 12:16:35,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 12:16:35,369 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:35,370 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, 1] [2020-07-17 12:16:35,370 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 12:16:35,370 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:35,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:35,371 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-07-17 12:16:35,371 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:35,371 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1505391221] [2020-07-17 12:16:35,371 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:35,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:35,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:35,441 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:35,441 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1505391221] [2020-07-17 12:16:35,441 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:35,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:35,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695481877] [2020-07-17 12:16:35,442 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:35,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:35,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:35,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:35,443 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-07-17 12:16:35,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:35,708 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-07-17 12:16:35,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:35,709 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-17 12:16:35,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:35,710 INFO L225 Difference]: With dead ends: 121 [2020-07-17 12:16:35,711 INFO L226 Difference]: Without dead ends: 119 [2020-07-17 12:16:35,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:35,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-17 12:16:35,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-07-17 12:16:35,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-17 12:16:35,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-17 12:16:35,744 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-07-17 12:16:35,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:35,745 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-17 12:16:35,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:35,745 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-17 12:16:35,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-17 12:16:35,746 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:35,746 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, 1] [2020-07-17 12:16:35,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 12:16:35,747 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:35,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:35,748 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-07-17 12:16:35,748 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:35,749 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189672750] [2020-07-17 12:16:35,749 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:35,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:35,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:35,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:35,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189672750] [2020-07-17 12:16:35,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:35,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:35,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076539155] [2020-07-17 12:16:35,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:35,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:35,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:35,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:35,855 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-07-17 12:16:36,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:36,079 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-07-17 12:16:36,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:36,079 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-17 12:16:36,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:36,080 INFO L225 Difference]: With dead ends: 77 [2020-07-17 12:16:36,081 INFO L226 Difference]: Without dead ends: 75 [2020-07-17 12:16:36,081 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:36,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-17 12:16:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-17 12:16:36,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-17 12:16:36,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-07-17 12:16:36,092 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-07-17 12:16:36,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:36,093 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-07-17 12:16:36,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:36,093 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-07-17 12:16:36,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-17 12:16:36,095 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:36,095 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, 1, 1, 1] [2020-07-17 12:16:36,095 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 12:16:36,096 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:36,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:36,096 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-07-17 12:16:36,097 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:36,097 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644387146] [2020-07-17 12:16:36,098 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:36,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,162 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:36,163 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644387146] [2020-07-17 12:16:36,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:36,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 12:16:36,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598096387] [2020-07-17 12:16:36,164 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-17 12:16:36,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:36,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-17 12:16:36,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-17 12:16:36,165 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-07-17 12:16:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:36,326 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-07-17 12:16:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-17 12:16:36,327 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-07-17 12:16:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:36,328 INFO L225 Difference]: With dead ends: 115 [2020-07-17 12:16:36,329 INFO L226 Difference]: Without dead ends: 75 [2020-07-17 12:16:36,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:16:36,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-17 12:16:36,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-17 12:16:36,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-17 12:16:36,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-07-17 12:16:36,339 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-07-17 12:16:36,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:36,340 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-07-17 12:16:36,340 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-17 12:16:36,340 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-07-17 12:16:36,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 12:16:36,341 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:36,342 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, 1, 1, 1, 1] [2020-07-17 12:16:36,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 12:16:36,343 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:36,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:36,343 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-07-17 12:16:36,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:36,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1999368127] [2020-07-17 12:16:36,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:36,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:36,452 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1999368127] [2020-07-17 12:16:36,452 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:36,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:36,453 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312195480] [2020-07-17 12:16:36,453 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:36,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:36,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:36,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:36,455 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-07-17 12:16:36,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:36,630 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-17 12:16:36,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:36,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-17 12:16:36,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:36,632 INFO L225 Difference]: With dead ends: 76 [2020-07-17 12:16:36,632 INFO L226 Difference]: Without dead ends: 74 [2020-07-17 12:16:36,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:16:36,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-17 12:16:36,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-07-17 12:16:36,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-17 12:16:36,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-07-17 12:16:36,641 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-07-17 12:16:36,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:36,641 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-07-17 12:16:36,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:36,642 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-07-17 12:16:36,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 12:16:36,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:36,643 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:36,644 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 12:16:36,644 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:36,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:36,645 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-07-17 12:16:36,645 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:36,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115698591] [2020-07-17 12:16:36,646 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:36,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,746 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:16:36,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115698591] [2020-07-17 12:16:36,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687087772] [2020-07-17 12:16:36,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:16:36,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:36,827 INFO L264 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:16:36,837 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:16:36,903 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:16:36,909 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:16:36,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:16:36,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:16:36,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2020-07-17 12:16:36,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324007877] [2020-07-17 12:16:36,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 12:16:36,927 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:36,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 12:16:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:16:36,929 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 7 states. [2020-07-17 12:16:37,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:37,194 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-07-17 12:16:37,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:37,195 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-07-17 12:16:37,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:37,196 INFO L225 Difference]: With dead ends: 111 [2020-07-17 12:16:37,197 INFO L226 Difference]: Without dead ends: 109 [2020-07-17 12:16:37,197 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:37,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-17 12:16:37,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-07-17 12:16:37,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-17 12:16:37,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-07-17 12:16:37,204 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-07-17 12:16:37,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:37,205 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-07-17 12:16:37,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 12:16:37,205 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-07-17 12:16:37,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-17 12:16:37,206 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:37,206 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, 1, 1, 1, 1, 1] [2020-07-17 12:16:37,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-07-17 12:16:37,408 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:37,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:37,408 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-07-17 12:16:37,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:37,409 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029932377] [2020-07-17 12:16:37,409 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:37,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:37,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:37,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:37,480 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029932377] [2020-07-17 12:16:37,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:37,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:37,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292849802] [2020-07-17 12:16:37,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:37,482 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:37,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:37,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:37,483 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-07-17 12:16:37,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:37,639 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-17 12:16:37,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:37,639 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-17 12:16:37,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:37,641 INFO L225 Difference]: With dead ends: 70 [2020-07-17 12:16:37,641 INFO L226 Difference]: Without dead ends: 68 [2020-07-17 12:16:37,642 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-17 12:16:37,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-17 12:16:37,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-17 12:16:37,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-07-17 12:16:37,658 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-07-17 12:16:37,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:37,659 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-07-17 12:16:37,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:37,659 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-07-17 12:16:37,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-17 12:16:37,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:37,663 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] [2020-07-17 12:16:37,663 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-17 12:16:37,664 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:37,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:37,665 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-07-17 12:16:37,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:37,665 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364001538] [2020-07-17 12:16:37,666 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:37,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:37,778 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:16:37,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364001538] [2020-07-17 12:16:37,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [950689422] [2020-07-17 12:16:37,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:16:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:37,823 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:16:37,826 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:16:37,842 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:16:37,845 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:16:37,857 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:16:37,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:16:37,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2020-07-17 12:16:37,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258094027] [2020-07-17 12:16:37,859 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 12:16:37,859 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:37,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 12:16:37,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:16:37,860 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 7 states. [2020-07-17 12:16:38,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:38,032 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-07-17 12:16:38,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:38,034 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-07-17 12:16:38,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:38,035 INFO L225 Difference]: With dead ends: 69 [2020-07-17 12:16:38,035 INFO L226 Difference]: Without dead ends: 67 [2020-07-17 12:16:38,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:38,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-17 12:16:38,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-07-17 12:16:38,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-17 12:16:38,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-07-17 12:16:38,045 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-07-17 12:16:38,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:38,045 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-07-17 12:16:38,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 12:16:38,046 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-07-17 12:16:38,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-17 12:16:38,047 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:38,047 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, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:38,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-17 12:16:38,261 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:38,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:38,262 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-07-17 12:16:38,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:38,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682955453] [2020-07-17 12:16:38,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:38,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:38,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:38,357 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682955453] [2020-07-17 12:16:38,357 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:38,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:38,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798066054] [2020-07-17 12:16:38,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:38,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:38,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:38,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:38,362 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 6 states. [2020-07-17 12:16:38,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:38,508 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-07-17 12:16:38,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:38,509 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-07-17 12:16:38,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:38,510 INFO L225 Difference]: With dead ends: 63 [2020-07-17 12:16:38,510 INFO L226 Difference]: Without dead ends: 61 [2020-07-17 12:16:38,511 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:16:38,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-17 12:16:38,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-07-17 12:16:38,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-17 12:16:38,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-07-17 12:16:38,517 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-07-17 12:16:38,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:38,518 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-07-17 12:16:38,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:38,518 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-07-17 12:16:38,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-17 12:16:38,521 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:38,521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:38,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-17 12:16:38,524 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:38,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:38,524 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-07-17 12:16:38,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:38,525 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933800798] [2020-07-17 12:16:38,525 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:38,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:38,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:38,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933800798] [2020-07-17 12:16:38,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:38,632 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 12:16:38,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251430800] [2020-07-17 12:16:38,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 12:16:38,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:38,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 12:16:38,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:16:38,634 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-07-17 12:16:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:38,822 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-07-17 12:16:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:38,823 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-07-17 12:16:38,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:38,824 INFO L225 Difference]: With dead ends: 71 [2020-07-17 12:16:38,824 INFO L226 Difference]: Without dead ends: 69 [2020-07-17 12:16:38,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:38,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-17 12:16:38,833 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-07-17 12:16:38,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-17 12:16:38,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-07-17 12:16:38,836 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-07-17 12:16:38,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:38,837 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-07-17 12:16:38,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 12:16:38,837 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-07-17 12:16:38,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-17 12:16:38,841 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:38,841 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:38,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-17 12:16:38,842 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:38,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:38,843 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-07-17 12:16:38,843 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:38,843 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305247961] [2020-07-17 12:16:38,843 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:38,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:38,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:38,953 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305247961] [2020-07-17 12:16:38,953 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:38,953 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:38,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382197129] [2020-07-17 12:16:38,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:38,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:38,955 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:38,955 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:38,955 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-07-17 12:16:39,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:39,323 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2020-07-17 12:16:39,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:16:39,323 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-17 12:16:39,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:39,325 INFO L225 Difference]: With dead ends: 91 [2020-07-17 12:16:39,325 INFO L226 Difference]: Without dead ends: 89 [2020-07-17 12:16:39,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-17 12:16:39,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2020-07-17 12:16:39,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-17 12:16:39,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-07-17 12:16:39,336 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-07-17 12:16:39,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:39,337 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-07-17 12:16:39,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:39,337 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-07-17 12:16:39,338 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-17 12:16:39,338 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:39,339 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:39,339 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-17 12:16:39,340 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:39,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:39,341 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-07-17 12:16:39,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:39,344 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208813552] [2020-07-17 12:16:39,344 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:39,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:39,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:39,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:39,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208813552] [2020-07-17 12:16:39,444 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:39,444 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:39,444 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51449503] [2020-07-17 12:16:39,446 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:39,446 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:39,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:39,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:39,447 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-07-17 12:16:39,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:39,643 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-07-17 12:16:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:39,644 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-07-17 12:16:39,644 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:39,645 INFO L225 Difference]: With dead ends: 61 [2020-07-17 12:16:39,645 INFO L226 Difference]: Without dead ends: 59 [2020-07-17 12:16:39,645 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:39,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-17 12:16:39,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-07-17 12:16:39,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-17 12:16:39,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-07-17 12:16:39,654 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-07-17 12:16:39,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:39,655 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-07-17 12:16:39,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:39,655 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-07-17 12:16:39,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-17 12:16:39,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:39,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:39,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-17 12:16:39,657 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:39,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:39,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-07-17 12:16:39,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:39,658 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522154113] [2020-07-17 12:16:39,658 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:39,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:39,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:39,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:39,768 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522154113] [2020-07-17 12:16:39,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:39,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:39,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354517249] [2020-07-17 12:16:39,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:39,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:39,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:39,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:39,771 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 6 states. [2020-07-17 12:16:39,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:39,953 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-17 12:16:39,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:39,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-07-17 12:16:39,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:39,955 INFO L225 Difference]: With dead ends: 70 [2020-07-17 12:16:39,955 INFO L226 Difference]: Without dead ends: 68 [2020-07-17 12:16:39,955 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:39,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-17 12:16:39,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-07-17 12:16:39,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-17 12:16:39,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-07-17 12:16:39,962 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 41 [2020-07-17 12:16:39,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:39,963 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-07-17 12:16:39,963 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:39,963 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-07-17 12:16:39,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-17 12:16:39,965 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:39,965 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:39,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-17 12:16:39,966 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:39,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:39,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-07-17 12:16:39,968 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:39,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993836168] [2020-07-17 12:16:39,968 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:39,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:40,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:40,039 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993836168] [2020-07-17 12:16:40,039 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:40,039 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:40,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613611121] [2020-07-17 12:16:40,040 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:40,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:40,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:40,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:40,041 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-07-17 12:16:40,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:40,249 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2020-07-17 12:16:40,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:40,250 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-07-17 12:16:40,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:40,251 INFO L225 Difference]: With dead ends: 68 [2020-07-17 12:16:40,251 INFO L226 Difference]: Without dead ends: 66 [2020-07-17 12:16:40,252 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-17 12:16:40,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-07-17 12:16:40,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-17 12:16:40,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-07-17 12:16:40,259 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 42 [2020-07-17 12:16:40,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:40,259 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-07-17 12:16:40,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:40,260 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-07-17 12:16:40,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-17 12:16:40,261 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:40,261 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:40,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-17 12:16:40,262 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:40,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:40,262 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-07-17 12:16:40,263 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:40,263 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1484356994] [2020-07-17 12:16:40,263 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:40,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:40,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:40,380 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:40,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1484356994] [2020-07-17 12:16:40,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:40,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:40,382 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363711345] [2020-07-17 12:16:40,384 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:40,385 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:40,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:40,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:40,388 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2020-07-17 12:16:40,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:40,719 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-07-17 12:16:40,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 12:16:40,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-17 12:16:40,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:40,742 INFO L225 Difference]: With dead ends: 90 [2020-07-17 12:16:40,742 INFO L226 Difference]: Without dead ends: 88 [2020-07-17 12:16:40,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:16:40,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-07-17 12:16:40,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2020-07-17 12:16:40,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-17 12:16:40,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-07-17 12:16:40,749 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 43 [2020-07-17 12:16:40,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:40,749 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-07-17 12:16:40,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:40,750 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-07-17 12:16:40,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-17 12:16:40,750 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:40,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:40,750 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-17 12:16:40,752 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:40,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:40,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-07-17 12:16:40,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:40,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819034749] [2020-07-17 12:16:40,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:40,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:40,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:40,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819034749] [2020-07-17 12:16:40,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:40,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:40,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481350287] [2020-07-17 12:16:40,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:40,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:40,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:40,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:40,837 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-07-17 12:16:41,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:41,067 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-07-17 12:16:41,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:41,068 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-07-17 12:16:41,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:41,069 INFO L225 Difference]: With dead ends: 75 [2020-07-17 12:16:41,069 INFO L226 Difference]: Without dead ends: 73 [2020-07-17 12:16:41,070 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 12:16:41,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-17 12:16:41,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2020-07-17 12:16:41,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-07-17 12:16:41,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-07-17 12:16:41,077 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 44 [2020-07-17 12:16:41,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:41,078 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-07-17 12:16:41,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:41,078 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-07-17 12:16:41,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-17 12:16:41,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:41,079 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:41,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-17 12:16:41,079 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:41,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:41,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-07-17 12:16:41,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:41,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419943134] [2020-07-17 12:16:41,081 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:41,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:41,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:41,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419943134] [2020-07-17 12:16:41,189 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763385342] [2020-07-17 12:16:41,189 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:16:41,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:41,251 INFO L264 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-17 12:16:41,256 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:16:41,322 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:16:41,346 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:16:41,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:16:41,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-17 12:16:41,350 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956075298] [2020-07-17 12:16:41,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:16:41,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:41,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:16:41,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:16:41,353 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 8 states. [2020-07-17 12:16:41,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:41,542 INFO L93 Difference]: Finished difference Result 67 states and 72 transitions. [2020-07-17 12:16:41,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:16:41,546 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 44 [2020-07-17 12:16:41,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:41,547 INFO L225 Difference]: With dead ends: 67 [2020-07-17 12:16:41,547 INFO L226 Difference]: Without dead ends: 65 [2020-07-17 12:16:41,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 43 SyntacticMatches, 5 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-17 12:16:41,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2020-07-17 12:16:41,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 65. [2020-07-17 12:16:41,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-07-17 12:16:41,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-07-17 12:16:41,556 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 44 [2020-07-17 12:16:41,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:41,559 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-07-17 12:16:41,559 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:16:41,559 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-07-17 12:16:41,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-17 12:16:41,560 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:41,560 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:41,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-07-17 12:16:41,777 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:41,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:41,778 INFO L82 PathProgramCache]: Analyzing trace with hash 790604971, now seen corresponding path program 1 times [2020-07-17 12:16:41,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:41,779 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001468243] [2020-07-17 12:16:41,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:41,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:41,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:41,867 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 12:16:41,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001468243] [2020-07-17 12:16:41,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:41,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 12:16:41,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183548249] [2020-07-17 12:16:41,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 12:16:41,869 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:41,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 12:16:41,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:16:41,870 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-07-17 12:16:42,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:42,179 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-07-17 12:16:42,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 12:16:42,180 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-07-17 12:16:42,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:42,181 INFO L225 Difference]: With dead ends: 77 [2020-07-17 12:16:42,181 INFO L226 Difference]: Without dead ends: 75 [2020-07-17 12:16:42,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-07-17 12:16:42,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-17 12:16:42,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-07-17 12:16:42,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-17 12:16:42,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-07-17 12:16:42,193 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2020-07-17 12:16:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:42,194 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-07-17 12:16:42,194 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 12:16:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-07-17 12:16:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-17 12:16:42,195 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:16:42,195 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:16:42,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-17 12:16:42,195 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr15ASSERT_VIOLATIONERROR_FUNCTION, mainErr16ASSERT_VIOLATIONERROR_FUNCTION, mainErr7ASSERT_VIOLATIONERROR_FUNCTION, mainErr8ASSERT_VIOLATIONERROR_FUNCTION, mainErr13ASSERT_VIOLATIONERROR_FUNCTION, mainErr9ASSERT_VIOLATIONERROR_FUNCTION, mainErr10ASSERT_VIOLATIONERROR_FUNCTION, mainErr14ASSERT_VIOLATIONERROR_FUNCTION, mainErr12ASSERT_VIOLATIONERROR_FUNCTION, mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr11ASSERT_VIOLATIONERROR_FUNCTION, mainErr17ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:16:42,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:16:42,196 INFO L82 PathProgramCache]: Analyzing trace with hash 705971477, now seen corresponding path program 1 times [2020-07-17 12:16:42,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:16:42,196 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726286712] [2020-07-17 12:16:42,197 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:16:42,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:42,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:16:42,295 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-17 12:16:42,296 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726286712] [2020-07-17 12:16:42,296 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:16:42,297 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 12:16:42,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654279609] [2020-07-17 12:16:42,298 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:16:42,298 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:16:42,299 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:16:42,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:16:42,299 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 5 states. [2020-07-17 12:16:42,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:16:42,491 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-07-17 12:16:42,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-17 12:16:42,492 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2020-07-17 12:16:42,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:16:42,493 INFO L225 Difference]: With dead ends: 60 [2020-07-17 12:16:42,493 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:16:42,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:16:42,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:16:42,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:16:42,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:16:42,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:16:42,496 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-07-17 12:16:42,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:16:42,497 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:16:42,497 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:16:42,497 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:16:42,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:16:42,498 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-07-17 12:16:42,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:16:43,025 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-07-17 12:16:43,537 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2020-07-17 12:16:43,770 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 31 [2020-07-17 12:16:44,132 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75 [2020-07-17 12:16:44,136 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:16:44,137 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~__return_main~0 |old(~__return_main~0)|) (= ~__return_375~0 |old(~__return_375~0)|)) [2020-07-17 12:16:44,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:16:44,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:16:44,137 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 12:16:44,137 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:16:44,137 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-07-17 12:16:44,138 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-07-17 12:16:44,139 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-07-17 12:16:44,139 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-07-17 12:16:44,140 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-07-17 12:16:44,141 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< main_~main__cp~0 main_~main__urilen~0) (= |old(~__return_375~0)| ~__return_375~0) (= 1 main_~__VERIFIER_assert__cond~3) (let ((.cse0 (not (= 0 main_~__VERIFIER_assert__cond~0))) (.cse1 (<= 1 main_~main__cp~0)) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse3 (< 0 main_~main__scheme~0))) (or (and (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse0 (not (= main_~__VERIFIER_assert__cond~16 0)) .cse1 .cse2 .cse3) (and (= 1 main_~__VERIFIER_assert__cond~2) .cse0 .cse1 .cse2 .cse3)))) [2020-07-17 12:16:44,142 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-07-17 12:16:44,142 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-07-17 12:16:44,142 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-07-17 12:16:44,142 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (let ((.cse19 (+ main_~main__cp~0 1))) (let ((.cse0 (= 1 main_~__VERIFIER_assert__cond~9)) (.cse1 (not (= 0 main_~__VERIFIER_assert__cond~8))) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~2))) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~5))) (.cse4 (not (= .cse19 main_~main__urilen~0))) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse8 (not (= 0 main_~__VERIFIER_assert__cond~6))) (.cse9 (= main_~__VERIFIER_assert__cond~10 1)) (.cse10 (not (= 0 main_~__VERIFIER_assert__cond~7))) (.cse11 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse12 (not (= main_~__VERIFIER_assert__cond~10 0))) (.cse13 (not (= 0 main_~__VERIFIER_assert__cond~9))) (.cse14 (not (= 0 main_~__VERIFIER_assert__cond~0))) (.cse15 (<= .cse19 main_~main__urilen~0)) (.cse16 (<= 1 main_~main__cp~0)) (.cse17 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse18 (< 0 main_~main__scheme~0))) (or (and .cse0 .cse1 .cse2 (= 0 main_~main__c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse16 .cse17 .cse18) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse3 .cse4 (not (= main_~__VERIFIER_assert__cond~15 0)) .cse5 .cse6 .cse7 .cse8 .cse9 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 .cse17 .cse18 (not (= main_~__VERIFIER_assert__cond~12 0)) (<= 1 main_~main__c~0))))) [2020-07-17 12:16:44,142 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-07-17 12:16:44,143 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-07-17 12:16:44,143 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-07-17 12:16:44,143 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-07-17 12:16:44,143 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-07-17 12:16:44,143 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-17 12:16:44,144 INFO L264 CegarLoopResult]: At program point L408(lines 102 409) the Hoare annotation is: (and (not (= 0 main_~__VERIFIER_assert__cond~0)) (= |old(~__return_375~0)| ~__return_375~0)) [2020-07-17 12:16:44,144 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-07-17 12:16:44,144 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-07-17 12:16:44,146 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-07-17 12:16:44,146 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-07-17 12:16:44,146 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-07-17 12:16:44,146 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-07-17 12:16:44,147 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-07-17 12:16:44,147 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-07-17 12:16:44,147 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-07-17 12:16:44,147 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-07-17 12:16:44,147 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-07-17 12:16:44,147 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-07-17 12:16:44,148 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-07-17 12:16:44,148 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-07-17 12:16:44,148 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-07-17 12:16:44,148 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-07-17 12:16:44,148 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-07-17 12:16:44,149 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-07-17 12:16:44,149 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-07-17 12:16:44,149 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-17 12:16:44,149 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-07-17 12:16:44,149 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-17 12:16:44,150 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-07-17 12:16:44,150 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-07-17 12:16:44,150 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-07-17 12:16:44,150 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-07-17 12:16:44,150 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-07-17 12:16:44,150 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-07-17 12:16:44,151 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-07-17 12:16:44,152 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-07-17 12:16:44,152 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse17 (+ main_~main__cp~0 1))) (let ((.cse3 (= 0 main_~main__c~0)) (.cse0 (= 1 main_~__VERIFIER_assert__cond~9)) (.cse1 (not (= 0 main_~__VERIFIER_assert__cond~8))) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~2))) (.cse4 (not (= 0 main_~__VERIFIER_assert__cond~5))) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse8 (not (= 0 main_~__VERIFIER_assert__cond~6))) (.cse9 (not (= 0 main_~__VERIFIER_assert__cond~7))) (.cse10 (<= 1 main_~__VERIFIER_assert__cond~10)) (.cse11 (not (= main_~__VERIFIER_assert__cond~11 0))) (.cse12 (not (= 0 main_~__VERIFIER_assert__cond~0))) (.cse13 (<= .cse17 main_~main__urilen~0)) (.cse15 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse14 (<= 1 main_~main__cp~0)) (.cse16 (< 0 main_~main__scheme~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse14 .cse15 .cse16) (and (< .cse17 main_~main__urilen~0) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse7 (= 1 main_~__VERIFIER_assert__cond~8) .cse8 .cse9 .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse4 (not (= main_~__VERIFIER_assert__cond~15 0)) .cse5 .cse6 .cse7 .cse8 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse9 .cse10 .cse11 .cse12 .cse13 .cse15 .cse14 .cse16 (not (= main_~__VERIFIER_assert__cond~12 0)) (<= 1 main_~main__c~0))))) [2020-07-17 12:16:44,153 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-07-17 12:16:44,153 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-07-17 12:16:44,153 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-07-17 12:16:44,153 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-07-17 12:16:44,153 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-07-17 12:16:44,154 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-07-17 12:16:44,154 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-07-17 12:16:44,154 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-17 12:16:44,154 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-07-17 12:16:44,154 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-07-17 12:16:44,155 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-07-17 12:16:44,155 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-07-17 12:16:44,155 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-07-17 12:16:44,155 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-07-17 12:16:44,155 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-07-17 12:16:44,155 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-07-17 12:16:44,156 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-07-17 12:16:44,157 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-07-17 12:16:44,157 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-07-17 12:16:44,157 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-07-17 12:16:44,158 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-07-17 12:16:44,158 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-17 12:16:44,158 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-07-17 12:16:44,159 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (and (let ((.cse0 (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse1 (not (= 0 main_~__VERIFIER_assert__cond~0))) (.cse2 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse3 (<= 1 main_~main__cp~0)) (.cse4 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse5 (< 0 main_~main__scheme~0))) (or (and (= 1 main_~__VERIFIER_assert__cond~2) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (and (<= 1 main_~__VERIFIER_assert__cond~16) (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 (not (= main_~__VERIFIER_assert__cond~17 0))))) (= |old(~__return_375~0)| ~__return_375~0)) [2020-07-17 12:16:44,245 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:16:44 BoogieIcfgContainer [2020-07-17 12:16:44,246 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:16:44,249 INFO L168 Benchmark]: Toolchain (without parser) took 13619.86 ms. Allocated memory was 135.3 MB in the beginning and 343.9 MB in the end (delta: 208.7 MB). Free memory was 100.4 MB in the beginning and 295.2 MB in the end (delta: -194.8 MB). Peak memory consumption was 196.4 MB. Max. memory is 7.1 GB. [2020-07-17 12:16:44,249 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-17 12:16:44,250 INFO L168 Benchmark]: CACSL2BoogieTranslator took 633.83 ms. Allocated memory is still 135.3 MB. Free memory was 100.0 MB in the beginning and 87.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:16:44,251 INFO L168 Benchmark]: Boogie Preprocessor took 187.69 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 87.0 MB in the beginning and 178.6 MB in the end (delta: -91.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. [2020-07-17 12:16:44,254 INFO L168 Benchmark]: RCFGBuilder took 667.75 ms. Allocated memory is still 201.9 MB. Free memory was 178.6 MB in the beginning and 151.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-17 12:16:44,255 INFO L168 Benchmark]: TraceAbstraction took 12121.08 ms. Allocated memory was 201.9 MB in the beginning and 343.9 MB in the end (delta: 142.1 MB). Free memory was 150.8 MB in the beginning and 295.2 MB in the end (delta: -144.4 MB). Peak memory consumption was 180.2 MB. Max. memory is 7.1 GB. [2020-07-17 12:16:44,265 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 135.3 MB. Free memory was 118.3 MB in the beginning and 118.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 633.83 ms. Allocated memory is still 135.3 MB. Free memory was 100.0 MB in the beginning and 87.0 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 187.69 ms. Allocated memory was 135.3 MB in the beginning and 201.9 MB in the end (delta: 66.6 MB). Free memory was 87.0 MB in the beginning and 178.6 MB in the end (delta: -91.6 MB). Peak memory consumption was 14.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 667.75 ms. Allocated memory is still 201.9 MB. Free memory was 178.6 MB in the beginning and 151.5 MB in the end (delta: 27.1 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12121.08 ms. Allocated memory was 201.9 MB in the beginning and 343.9 MB in the end (delta: 142.1 MB). Free memory was 150.8 MB in the beginning and 295.2 MB in the end (delta: -144.4 MB). Peak memory consumption was 180.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 83]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 306]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 372]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 187]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 212]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 282]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 224]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 241]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 294]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 270]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 143]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 253]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 384]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 111]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 175]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 155]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 123]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 95]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 18 specifications checked. All of them hold - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: (((((((1 == __VERIFIER_assert__cond && main__cp + 1 <= main__urilen) && !(0 == __VERIFIER_assert__cond)) && 1 == __VERIFIER_assert__cond) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) || ((((((((1 <= __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && !(0 == __VERIFIER_assert__cond)) && 1 == __VERIFIER_assert__cond) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0))) && \old(__return_375) == __return_375 - InvariantResult [Line: 102]: Loop Invariant Derived loop invariant: !(0 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375 - InvariantResult [Line: 228]: Loop Invariant Derived loop invariant: ((((((((((((((((((1 == __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 0 == main__c) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && main__c + 2 <= main__tokenlen) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) || ((((((((((((((((main__cp + 1 < main__urilen && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 0 == main__c) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme)) || ((((((((((((((((((((1 == __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__c) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((main__cp < main__urilen && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && ((((((!(0 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) || ((((1 == __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme)) - InvariantResult [Line: 260]: Loop Invariant Derived loop invariant: ((((((((((((((((((((1 == __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 0 == main__c) && !(0 == __VERIFIER_assert__cond)) && !(main__cp + 1 == main__urilen)) && 1 <= __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && main__c + 2 <= main__tokenlen) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) || (((((((((((((((((((((((1 == __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(main__cp + 1 == main__urilen)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) && 1 <= main__c) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 10.2s, OverallIterations: 24, TraceHistogramMax: 2, AutomataDifference: 5.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1392 SDtfs, 3910 SDslu, 363 SDs, 0 SdLazy, 2628 SolverSat, 200 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 368 GetRequests, 179 SyntacticMatches, 7 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=87occurred in iteration=0, 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, 24 MinimizatonAttempts, 288 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 520 HoareAnnotationTreeSize, 9 FomulaSimplifications, 66188 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 12655 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 906 NumberOfCodeBlocks, 906 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 879 ConstructedInterpolants, 0 QuantifiedInterpolants, 69166 SizeOfPredicates, 15 NumberOfNonLiveVariables, 359 ConjunctsInSsa, 23 ConjunctsInUnsatCore, 27 InterpolantComputations, 21 PerfectInterpolantSequences, 15/27 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...