/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 0.1.25-86f66a4 [2020-07-07 11:33:28,172 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 11:33:28,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 11:33:28,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 11:33:28,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 11:33:28,196 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 11:33:28,198 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 11:33:28,208 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 11:33:28,211 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 11:33:28,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 11:33:28,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 11:33:28,217 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 11:33:28,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 11:33:28,219 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 11:33:28,221 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 11:33:28,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 11:33:28,224 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 11:33:28,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 11:33:28,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 11:33:28,230 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 11:33:28,235 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 11:33:28,238 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 11:33:28,239 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 11:33:28,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 11:33:28,242 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 11:33:28,252 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 11:33:28,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 11:33:28,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 11:33:28,254 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 [2020-07-07 11:33:28,290 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 11:33:28,291 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 11:33:28,294 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-07 11:33:28,294 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-07 11:33:28,295 INFO L138 SettingsManager]: * Use SBE=true [2020-07-07 11:33:28,295 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 11:33:28,295 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 11:33:28,295 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 11:33:28,295 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 11:33:28,296 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 11:33:28,296 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 11:33:28,296 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 11:33:28,296 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 11:33:28,296 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 11:33:28,297 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 11:33:28,297 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 11:33:28,297 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 11:33:28,297 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 11:33:28,297 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-07 11:33:28,298 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 11:33:28,298 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 11:33:28,298 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:33:28,298 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 11:33:28,298 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-07 11:33:28,299 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-07 11:33:28,299 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-07 11:33:28,299 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-07 11:33:28,299 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 11:33:28,299 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-07 11:33:28,300 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-07 11:33:28,577 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 11:33:28,593 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 11:33:28,595 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 11:33:28,596 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 11:33:28,596 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 11:33:28,597 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-07 11:33:28,669 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33e9f957/dc36d86170c84d97b9f939860185a643/FLAGdda60df41 [2020-07-07 11:33:29,184 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 11:33:29,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/apache-escape-absolute.i.v+cfa-reducer.c [2020-07-07 11:33:29,198 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33e9f957/dc36d86170c84d97b9f939860185a643/FLAGdda60df41 [2020-07-07 11:33:29,489 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b33e9f957/dc36d86170c84d97b9f939860185a643 [2020-07-07 11:33:29,498 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 11:33:29,500 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 11:33:29,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:29,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 11:33:29,504 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 11:33:29,505 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,508 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2eb8949b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29, skipping insertion in model container [2020-07-07 11:33:29,508 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,516 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 11:33:29,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 11:33:29,763 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:29,768 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 11:33:29,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 11:33:29,825 INFO L208 MainTranslator]: Completed translation [2020-07-07 11:33:29,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29 WrapperNode [2020-07-07 11:33:29,826 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 11:33:29,827 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 11:33:29,827 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 11:33:29,827 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 11:33:29,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,939 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,940 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... [2020-07-07 11:33:29,957 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 11:33:29,958 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 11:33:29,958 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 11:33:29,958 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 11:33:29,959 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 11:33:30,020 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 11:33:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 11:33:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-07 11:33:30,021 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 11:33:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 11:33:30,021 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-07 11:33:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-07 11:33:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-07 11:33:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 11:33:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 11:33:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 11:33:30,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 11:33:30,444 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 11:33:30,444 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-07 11:33:30,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:30 BoogieIcfgContainer [2020-07-07 11:33:30,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 11:33:30,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 11:33:30,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 11:33:30,460 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 11:33:30,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 11:33:29" (1/3) ... [2020-07-07 11:33:30,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e6d3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:30, skipping insertion in model container [2020-07-07 11:33:30,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 11:33:29" (2/3) ... [2020-07-07 11:33:30,461 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e6d3c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 11:33:30, skipping insertion in model container [2020-07-07 11:33:30,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 11:33:30" (3/3) ... [2020-07-07 11:33:30,467 INFO L109 eAbstractionObserver]: Analyzing ICFG apache-escape-absolute.i.v+cfa-reducer.c [2020-07-07 11:33:30,478 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-07 11:33:30,484 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 18 error locations. [2020-07-07 11:33:30,498 INFO L251 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2020-07-07 11:33:30,524 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 11:33:30,524 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 11:33:30,524 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-07 11:33:30,524 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 11:33:30,524 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 11:33:30,525 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 11:33:30,525 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 11:33:30,525 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 11:33:30,550 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states. [2020-07-07 11:33:30,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-07-07 11:33:30,557 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:30,558 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:30,559 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]=== [2020-07-07 11:33:30,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:30,565 INFO L82 PathProgramCache]: Analyzing trace with hash -2019463306, now seen corresponding path program 1 times [2020-07-07 11:33:30,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:30,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897674231] [2020-07-07 11:33:30,574 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:30,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:30,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897674231] [2020-07-07 11:33:30,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:30,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:33:30,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777513255] [2020-07-07 11:33:30,855 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:33:30,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:30,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:33:30,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:33:30,873 INFO L87 Difference]: Start difference. First operand 87 states. Second operand 4 states. [2020-07-07 11:33:30,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:30,989 INFO L93 Difference]: Finished difference Result 93 states and 129 transitions. [2020-07-07 11:33:30,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:30,991 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-07-07 11:33:30,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,003 INFO L225 Difference]: With dead ends: 93 [2020-07-07 11:33:31,003 INFO L226 Difference]: Without dead ends: 80 [2020-07-07 11:33:31,007 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 [2020-07-07 11:33:31,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2020-07-07 11:33:31,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-07-07 11:33:31,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-07-07 11:33:31,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 83 transitions. [2020-07-07 11:33:31,059 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 83 transitions. Word has length 19 [2020-07-07 11:33:31,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,060 INFO L479 AbstractCegarLoop]: Abstraction has 80 states and 83 transitions. [2020-07-07 11:33:31,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:33:31,060 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 83 transitions. [2020-07-07 11:33:31,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2020-07-07 11:33:31,061 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,061 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] [2020-07-07 11:33:31,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 11:33:31,062 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]=== [2020-07-07 11:33:31,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1821150056, now seen corresponding path program 1 times [2020-07-07 11:33:31,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,064 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155405589] [2020-07-07 11:33:31,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155405589] [2020-07-07 11:33:31,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:33:31,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617441206] [2020-07-07 11:33:31,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:31,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:31,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:31,227 INFO L87 Difference]: Start difference. First operand 80 states and 83 transitions. Second operand 7 states. [2020-07-07 11:33:31,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:31,459 INFO L93 Difference]: Finished difference Result 80 states and 83 transitions. [2020-07-07 11:33:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:31,461 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2020-07-07 11:33:31,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,463 INFO L225 Difference]: With dead ends: 80 [2020-07-07 11:33:31,463 INFO L226 Difference]: Without dead ends: 78 [2020-07-07 11:33:31,465 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 [2020-07-07 11:33:31,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-07 11:33:31,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 78. [2020-07-07 11:33:31,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 78 states. [2020-07-07 11:33:31,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 78 states to 78 states and 81 transitions. [2020-07-07 11:33:31,493 INFO L78 Accepts]: Start accepts. Automaton has 78 states and 81 transitions. Word has length 20 [2020-07-07 11:33:31,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,493 INFO L479 AbstractCegarLoop]: Abstraction has 78 states and 81 transitions. [2020-07-07 11:33:31,494 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:31,494 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 81 transitions. [2020-07-07 11:33:31,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-07 11:33:31,495 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,495 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] [2020-07-07 11:33:31,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 11:33:31,496 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]=== [2020-07-07 11:33:31,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,496 INFO L82 PathProgramCache]: Analyzing trace with hash 2073610827, now seen corresponding path program 1 times [2020-07-07 11:33:31,497 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296250684] [2020-07-07 11:33:31,497 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,575 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296250684] [2020-07-07 11:33:31,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,576 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 11:33:31,576 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699964336] [2020-07-07 11:33:31,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 11:33:31,577 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 11:33:31,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-07 11:33:31,578 INFO L87 Difference]: Start difference. First operand 78 states and 81 transitions. Second operand 5 states. [2020-07-07 11:33:31,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:31,768 INFO L93 Difference]: Finished difference Result 101 states and 106 transitions. [2020-07-07 11:33:31,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:31,769 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 22 [2020-07-07 11:33:31,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,770 INFO L225 Difference]: With dead ends: 101 [2020-07-07 11:33:31,771 INFO L226 Difference]: Without dead ends: 99 [2020-07-07 11:33:31,771 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 [2020-07-07 11:33:31,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 99 states. [2020-07-07 11:33:31,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 99 to 76. [2020-07-07 11:33:31,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-07 11:33:31,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 79 transitions. [2020-07-07 11:33:31,782 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 79 transitions. Word has length 22 [2020-07-07 11:33:31,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,782 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 79 transitions. [2020-07-07 11:33:31,782 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 11:33:31,782 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 79 transitions. [2020-07-07 11:33:31,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-07 11:33:31,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,784 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] [2020-07-07 11:33:31,784 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 11:33:31,784 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]=== [2020-07-07 11:33:31,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,785 INFO L82 PathProgramCache]: Analyzing trace with hash -142570686, now seen corresponding path program 1 times [2020-07-07 11:33:31,785 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,785 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377940247] [2020-07-07 11:33:31,786 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:31,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:31,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:31,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377940247] [2020-07-07 11:33:31,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:31,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:31,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041639497] [2020-07-07 11:33:31,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:31,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:31,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:31,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:31,854 INFO L87 Difference]: Start difference. First operand 76 states and 79 transitions. Second operand 6 states. [2020-07-07 11:33:31,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:31,982 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-07 11:33:31,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:31,983 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2020-07-07 11:33:31,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:31,984 INFO L225 Difference]: With dead ends: 76 [2020-07-07 11:33:31,985 INFO L226 Difference]: Without dead ends: 74 [2020-07-07 11:33:31,985 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 [2020-07-07 11:33:31,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-07 11:33:31,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-07 11:33:31,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-07 11:33:31,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 77 transitions. [2020-07-07 11:33:31,993 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 77 transitions. Word has length 23 [2020-07-07 11:33:31,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:31,993 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 77 transitions. [2020-07-07 11:33:31,993 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:31,994 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 77 transitions. [2020-07-07 11:33:31,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 11:33:31,995 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:31,995 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:31,995 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 11:33:31,995 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]=== [2020-07-07 11:33:31,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:31,996 INFO L82 PathProgramCache]: Analyzing trace with hash 402497124, now seen corresponding path program 1 times [2020-07-07 11:33:31,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:31,996 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472599009] [2020-07-07 11:33:31,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:32,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:32,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:32,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472599009] [2020-07-07 11:33:32,093 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:32,094 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:32,094 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422744225] [2020-07-07 11:33:32,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:32,095 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:32,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:32,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:32,095 INFO L87 Difference]: Start difference. First operand 74 states and 77 transitions. Second operand 6 states. [2020-07-07 11:33:32,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:32,496 INFO L93 Difference]: Finished difference Result 141 states and 147 transitions. [2020-07-07 11:33:32,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:33:32,497 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-07 11:33:32,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:32,499 INFO L225 Difference]: With dead ends: 141 [2020-07-07 11:33:32,499 INFO L226 Difference]: Without dead ends: 139 [2020-07-07 11:33:32,500 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 [2020-07-07 11:33:32,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2020-07-07 11:33:32,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 77. [2020-07-07 11:33:32,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-07 11:33:32,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-07 11:33:32,510 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 26 [2020-07-07 11:33:32,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:32,510 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-07 11:33:32,511 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:32,511 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-07 11:33:32,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-07 11:33:32,512 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:32,512 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 11:33:32,512 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 11:33:32,513 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]=== [2020-07-07 11:33:32,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:32,513 INFO L82 PathProgramCache]: Analyzing trace with hash 406230933, now seen corresponding path program 1 times [2020-07-07 11:33:32,514 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:32,514 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344060794] [2020-07-07 11:33:32,514 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:32,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:32,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:32,605 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344060794] [2020-07-07 11:33:32,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:32,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:32,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586757139] [2020-07-07 11:33:32,606 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:32,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:32,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:32,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:32,607 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-07-07 11:33:32,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:32,889 INFO L93 Difference]: Finished difference Result 108 states and 114 transitions. [2020-07-07 11:33:32,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:33:32,890 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 26 [2020-07-07 11:33:32,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:32,891 INFO L225 Difference]: With dead ends: 108 [2020-07-07 11:33:32,891 INFO L226 Difference]: Without dead ends: 106 [2020-07-07 11:33:32,892 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 [2020-07-07 11:33:32,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2020-07-07 11:33:32,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 79. [2020-07-07 11:33:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 79 states. [2020-07-07 11:33:32,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 84 transitions. [2020-07-07 11:33:32,899 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 84 transitions. Word has length 26 [2020-07-07 11:33:32,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:32,900 INFO L479 AbstractCegarLoop]: Abstraction has 79 states and 84 transitions. [2020-07-07 11:33:32,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:32,900 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 84 transitions. [2020-07-07 11:33:32,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-07 11:33:32,901 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:32,901 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] [2020-07-07 11:33:32,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 11:33:32,902 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]=== [2020-07-07 11:33:32,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:32,902 INFO L82 PathProgramCache]: Analyzing trace with hash -407487796, now seen corresponding path program 1 times [2020-07-07 11:33:32,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:32,903 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46150241] [2020-07-07 11:33:32,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:32,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:32,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:32,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46150241] [2020-07-07 11:33:32,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:32,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:32,962 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124883368] [2020-07-07 11:33:32,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:32,963 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:32,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:32,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:32,964 INFO L87 Difference]: Start difference. First operand 79 states and 84 transitions. Second operand 6 states. [2020-07-07 11:33:33,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:33,173 INFO L93 Difference]: Finished difference Result 121 states and 127 transitions. [2020-07-07 11:33:33,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:33,174 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-07 11:33:33,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:33,175 INFO L225 Difference]: With dead ends: 121 [2020-07-07 11:33:33,175 INFO L226 Difference]: Without dead ends: 119 [2020-07-07 11:33:33,176 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 [2020-07-07 11:33:33,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-07-07 11:33:33,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 77. [2020-07-07 11:33:33,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 77 states. [2020-07-07 11:33:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 82 transitions. [2020-07-07 11:33:33,182 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 82 transitions. Word has length 27 [2020-07-07 11:33:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:33,183 INFO L479 AbstractCegarLoop]: Abstraction has 77 states and 82 transitions. [2020-07-07 11:33:33,183 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 82 transitions. [2020-07-07 11:33:33,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-07 11:33:33,184 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:33,184 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] [2020-07-07 11:33:33,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 11:33:33,185 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]=== [2020-07-07 11:33:33,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:33,185 INFO L82 PathProgramCache]: Analyzing trace with hash -291739827, now seen corresponding path program 1 times [2020-07-07 11:33:33,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:33,186 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248232072] [2020-07-07 11:33:33,186 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:33,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:33,246 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248232072] [2020-07-07 11:33:33,246 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:33,246 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:33,246 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [624117016] [2020-07-07 11:33:33,247 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:33,247 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:33,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:33,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:33,248 INFO L87 Difference]: Start difference. First operand 77 states and 82 transitions. Second operand 6 states. [2020-07-07 11:33:33,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:33,416 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-07-07 11:33:33,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:33,416 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 27 [2020-07-07 11:33:33,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:33,417 INFO L225 Difference]: With dead ends: 77 [2020-07-07 11:33:33,417 INFO L226 Difference]: Without dead ends: 75 [2020-07-07 11:33:33,418 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 [2020-07-07 11:33:33,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-07 11:33:33,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-07 11:33:33,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-07 11:33:33,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 80 transitions. [2020-07-07 11:33:33,426 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 80 transitions. Word has length 27 [2020-07-07 11:33:33,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:33,426 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 80 transitions. [2020-07-07 11:33:33,427 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:33,427 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 80 transitions. [2020-07-07 11:33:33,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2020-07-07 11:33:33,431 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:33,431 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] [2020-07-07 11:33:33,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 11:33:33,432 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]=== [2020-07-07 11:33:33,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:33,432 INFO L82 PathProgramCache]: Analyzing trace with hash -1188998893, now seen corresponding path program 1 times [2020-07-07 11:33:33,433 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:33,433 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927763574] [2020-07-07 11:33:33,436 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:33,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:33,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927763574] [2020-07-07 11:33:33,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:33,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 11:33:33,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730757807] [2020-07-07 11:33:33,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:33:33,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:33,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:33:33,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 11:33:33,501 INFO L87 Difference]: Start difference. First operand 75 states and 80 transitions. Second operand 4 states. [2020-07-07 11:33:33,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:33,603 INFO L93 Difference]: Finished difference Result 115 states and 121 transitions. [2020-07-07 11:33:33,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-07 11:33:33,604 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2020-07-07 11:33:33,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:33,605 INFO L225 Difference]: With dead ends: 115 [2020-07-07 11:33:33,605 INFO L226 Difference]: Without dead ends: 75 [2020-07-07 11:33:33,606 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 [2020-07-07 11:33:33,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-07 11:33:33,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 75. [2020-07-07 11:33:33,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-07 11:33:33,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 78 transitions. [2020-07-07 11:33:33,622 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 78 transitions. Word has length 29 [2020-07-07 11:33:33,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:33,623 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 78 transitions. [2020-07-07 11:33:33,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:33:33,623 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 78 transitions. [2020-07-07 11:33:33,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-07 11:33:33,626 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:33,626 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] [2020-07-07 11:33:33,626 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 11:33:33,627 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]=== [2020-07-07 11:33:33,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:33,627 INFO L82 PathProgramCache]: Analyzing trace with hash -1640998784, now seen corresponding path program 1 times [2020-07-07 11:33:33,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:33,628 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752098118] [2020-07-07 11:33:33,628 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:33,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752098118] [2020-07-07 11:33:33,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:33,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:33,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236279722] [2020-07-07 11:33:33,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:33,728 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:33,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:33,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:33,729 INFO L87 Difference]: Start difference. First operand 75 states and 78 transitions. Second operand 6 states. [2020-07-07 11:33:33,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:33,853 INFO L93 Difference]: Finished difference Result 76 states and 79 transitions. [2020-07-07 11:33:33,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:33,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2020-07-07 11:33:33,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:33,855 INFO L225 Difference]: With dead ends: 76 [2020-07-07 11:33:33,855 INFO L226 Difference]: Without dead ends: 74 [2020-07-07 11:33:33,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:33:33,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-07 11:33:33,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 73. [2020-07-07 11:33:33,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2020-07-07 11:33:33,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 76 transitions. [2020-07-07 11:33:33,860 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 76 transitions. Word has length 30 [2020-07-07 11:33:33,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:33,861 INFO L479 AbstractCegarLoop]: Abstraction has 73 states and 76 transitions. [2020-07-07 11:33:33,861 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:33,861 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 76 transitions. [2020-07-07 11:33:33,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-07 11:33:33,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:33,862 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] [2020-07-07 11:33:33,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 11:33:33,863 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]=== [2020-07-07 11:33:33,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:33,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1892106755, now seen corresponding path program 1 times [2020-07-07 11:33:33,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:33,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919926011] [2020-07-07 11:33:33,864 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:33,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,917 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:33:33,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919926011] [2020-07-07 11:33:33,918 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558501971] [2020-07-07 11:33:33,918 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 [2020-07-07 11:33:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:33,979 INFO L264 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:33:33,985 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:33:34,030 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:33:34,034 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:33:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:33:34,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:33:34,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2020-07-07 11:33:34,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444625343] [2020-07-07 11:33:34,046 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:34,046 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:34,046 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:34,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:34,047 INFO L87 Difference]: Start difference. First operand 73 states and 76 transitions. Second operand 7 states. [2020-07-07 11:33:34,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:34,227 INFO L93 Difference]: Finished difference Result 111 states and 115 transitions. [2020-07-07 11:33:34,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:34,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2020-07-07 11:33:34,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:34,229 INFO L225 Difference]: With dead ends: 111 [2020-07-07 11:33:34,229 INFO L226 Difference]: Without dead ends: 109 [2020-07-07 11:33:34,230 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:33:34,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2020-07-07 11:33:34,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 70. [2020-07-07 11:33:34,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-07-07 11:33:34,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 73 transitions. [2020-07-07 11:33:34,235 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 73 transitions. Word has length 30 [2020-07-07 11:33:34,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:34,235 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 73 transitions. [2020-07-07 11:33:34,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:34,236 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 73 transitions. [2020-07-07 11:33:34,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-07 11:33:34,236 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:34,237 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] [2020-07-07 11:33:34,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2020-07-07 11:33:34,449 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]=== [2020-07-07 11:33:34,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:34,450 INFO L82 PathProgramCache]: Analyzing trace with hash 668648404, now seen corresponding path program 1 times [2020-07-07 11:33:34,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:34,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1333272656] [2020-07-07 11:33:34,451 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:34,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:34,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:34,496 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:34,496 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1333272656] [2020-07-07 11:33:34,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:34,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:34,497 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1238649468] [2020-07-07 11:33:34,498 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:34,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:34,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:34,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:34,498 INFO L87 Difference]: Start difference. First operand 70 states and 73 transitions. Second operand 6 states. [2020-07-07 11:33:34,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:34,635 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-07 11:33:34,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:34,635 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 31 [2020-07-07 11:33:34,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:34,636 INFO L225 Difference]: With dead ends: 70 [2020-07-07 11:33:34,636 INFO L226 Difference]: Without dead ends: 68 [2020-07-07 11:33:34,637 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 [2020-07-07 11:33:34,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-07 11:33:34,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-07 11:33:34,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-07 11:33:34,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 71 transitions. [2020-07-07 11:33:34,642 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 71 transitions. Word has length 31 [2020-07-07 11:33:34,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:34,642 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 71 transitions. [2020-07-07 11:33:34,642 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:34,642 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 71 transitions. [2020-07-07 11:33:34,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2020-07-07 11:33:34,643 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:34,643 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] [2020-07-07 11:33:34,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 11:33:34,644 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]=== [2020-07-07 11:33:34,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:34,644 INFO L82 PathProgramCache]: Analyzing trace with hash 1470784207, now seen corresponding path program 1 times [2020-07-07 11:33:34,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:34,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510465960] [2020-07-07 11:33:34,645 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:34,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:34,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:34,695 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:33:34,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510465960] [2020-07-07 11:33:34,696 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [379786474] [2020-07-07 11:33:34,696 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 [2020-07-07 11:33:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:34,742 INFO L264 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-07 11:33:34,744 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:33:34,761 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:33:34,763 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:33:34,773 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-07 11:33:34,773 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:33:34,774 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 7 [2020-07-07 11:33:34,774 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334400074] [2020-07-07 11:33:34,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:34,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:34,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:34,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:34,775 INFO L87 Difference]: Start difference. First operand 68 states and 71 transitions. Second operand 7 states. [2020-07-07 11:33:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:34,901 INFO L93 Difference]: Finished difference Result 69 states and 72 transitions. [2020-07-07 11:33:34,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:34,902 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2020-07-07 11:33:34,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:34,903 INFO L225 Difference]: With dead ends: 69 [2020-07-07 11:33:34,903 INFO L226 Difference]: Without dead ends: 67 [2020-07-07 11:33:34,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 32 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2020-07-07 11:33:34,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67 states. [2020-07-07 11:33:34,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67 to 62. [2020-07-07 11:33:34,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62 states. [2020-07-07 11:33:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 64 transitions. [2020-07-07 11:33:34,908 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 64 transitions. Word has length 31 [2020-07-07 11:33:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:34,908 INFO L479 AbstractCegarLoop]: Abstraction has 62 states and 64 transitions. [2020-07-07 11:33:34,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 64 transitions. [2020-07-07 11:33:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-07-07 11:33:34,909 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:34,909 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] [2020-07-07 11:33:35,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-07 11:33:35,121 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]=== [2020-07-07 11:33:35,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:35,122 INFO L82 PathProgramCache]: Analyzing trace with hash -350608983, now seen corresponding path program 1 times [2020-07-07 11:33:35,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:35,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712425172] [2020-07-07 11:33:35,123 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:35,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:35,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712425172] [2020-07-07 11:33:35,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:35,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:35,198 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332255456] [2020-07-07 11:33:35,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:35,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:35,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:35,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:35,199 INFO L87 Difference]: Start difference. First operand 62 states and 64 transitions. Second operand 6 states. [2020-07-07 11:33:35,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:35,311 INFO L93 Difference]: Finished difference Result 63 states and 65 transitions. [2020-07-07 11:33:35,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:35,311 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2020-07-07 11:33:35,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:35,312 INFO L225 Difference]: With dead ends: 63 [2020-07-07 11:33:35,312 INFO L226 Difference]: Without dead ends: 61 [2020-07-07 11:33:35,313 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-07-07 11:33:35,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-07 11:33:35,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 60. [2020-07-07 11:33:35,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60 states. [2020-07-07 11:33:35,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60 states to 60 states and 62 transitions. [2020-07-07 11:33:35,317 INFO L78 Accepts]: Start accepts. Automaton has 60 states and 62 transitions. Word has length 34 [2020-07-07 11:33:35,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:35,317 INFO L479 AbstractCegarLoop]: Abstraction has 60 states and 62 transitions. [2020-07-07 11:33:35,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:35,317 INFO L276 IsEmpty]: Start isEmpty. Operand 60 states and 62 transitions. [2020-07-07 11:33:35,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-07 11:33:35,318 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:35,318 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] [2020-07-07 11:33:35,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-07-07 11:33:35,318 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]=== [2020-07-07 11:33:35,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:35,319 INFO L82 PathProgramCache]: Analyzing trace with hash 2016026591, now seen corresponding path program 1 times [2020-07-07 11:33:35,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:35,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288982924] [2020-07-07 11:33:35,319 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:35,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:35,365 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288982924] [2020-07-07 11:33:35,365 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:35,365 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 11:33:35,365 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [15967560] [2020-07-07 11:33:35,366 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 11:33:35,366 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:35,366 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 11:33:35,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:35,366 INFO L87 Difference]: Start difference. First operand 60 states and 62 transitions. Second operand 7 states. [2020-07-07 11:33:35,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:35,512 INFO L93 Difference]: Finished difference Result 71 states and 74 transitions. [2020-07-07 11:33:35,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 11:33:35,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 35 [2020-07-07 11:33:35,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:35,514 INFO L225 Difference]: With dead ends: 71 [2020-07-07 11:33:35,514 INFO L226 Difference]: Without dead ends: 69 [2020-07-07 11:33:35,514 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 [2020-07-07 11:33:35,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2020-07-07 11:33:35,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 58. [2020-07-07 11:33:35,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2020-07-07 11:33:35,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 60 transitions. [2020-07-07 11:33:35,518 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 60 transitions. Word has length 35 [2020-07-07 11:33:35,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:35,519 INFO L479 AbstractCegarLoop]: Abstraction has 58 states and 60 transitions. [2020-07-07 11:33:35,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 11:33:35,519 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 60 transitions. [2020-07-07 11:33:35,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-07-07 11:33:35,519 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:35,519 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] [2020-07-07 11:33:35,520 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-07-07 11:33:35,520 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]=== [2020-07-07 11:33:35,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:35,520 INFO L82 PathProgramCache]: Analyzing trace with hash -1371399406, now seen corresponding path program 1 times [2020-07-07 11:33:35,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:35,521 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [567808759] [2020-07-07 11:33:35,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:35,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:35,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [567808759] [2020-07-07 11:33:35,579 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:35,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:35,580 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287060592] [2020-07-07 11:33:35,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:35,581 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:35,581 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:35,581 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:35,581 INFO L87 Difference]: Start difference. First operand 58 states and 60 transitions. Second operand 6 states. [2020-07-07 11:33:35,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:35,877 INFO L93 Difference]: Finished difference Result 91 states and 95 transitions. [2020-07-07 11:33:35,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:33:35,878 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 38 [2020-07-07 11:33:35,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:35,879 INFO L225 Difference]: With dead ends: 91 [2020-07-07 11:33:35,879 INFO L226 Difference]: Without dead ends: 89 [2020-07-07 11:33:35,879 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 [2020-07-07 11:33:35,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2020-07-07 11:33:35,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 61. [2020-07-07 11:33:35,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2020-07-07 11:33:35,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 63 transitions. [2020-07-07 11:33:35,884 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 63 transitions. Word has length 38 [2020-07-07 11:33:35,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:35,885 INFO L479 AbstractCegarLoop]: Abstraction has 61 states and 63 transitions. [2020-07-07 11:33:35,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:35,885 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 63 transitions. [2020-07-07 11:33:35,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-07 11:33:35,885 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:35,886 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] [2020-07-07 11:33:35,886 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-07-07 11:33:35,886 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]=== [2020-07-07 11:33:35,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:35,886 INFO L82 PathProgramCache]: Analyzing trace with hash 436294569, now seen corresponding path program 1 times [2020-07-07 11:33:35,887 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:35,887 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370661397] [2020-07-07 11:33:35,887 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:35,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:35,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:35,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370661397] [2020-07-07 11:33:35,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:35,938 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:35,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840915270] [2020-07-07 11:33:35,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:35,939 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:35,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:35,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:35,940 INFO L87 Difference]: Start difference. First operand 61 states and 63 transitions. Second operand 6 states. [2020-07-07 11:33:36,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:36,098 INFO L93 Difference]: Finished difference Result 61 states and 63 transitions. [2020-07-07 11:33:36,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:36,099 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 39 [2020-07-07 11:33:36,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:36,100 INFO L225 Difference]: With dead ends: 61 [2020-07-07 11:33:36,100 INFO L226 Difference]: Without dead ends: 59 [2020-07-07 11:33:36,101 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 [2020-07-07 11:33:36,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59 states. [2020-07-07 11:33:36,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59 to 59. [2020-07-07 11:33:36,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 59 states. [2020-07-07 11:33:36,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59 states to 59 states and 61 transitions. [2020-07-07 11:33:36,105 INFO L78 Accepts]: Start accepts. Automaton has 59 states and 61 transitions. Word has length 39 [2020-07-07 11:33:36,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:36,105 INFO L479 AbstractCegarLoop]: Abstraction has 59 states and 61 transitions. [2020-07-07 11:33:36,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:36,106 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states and 61 transitions. [2020-07-07 11:33:36,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2020-07-07 11:33:36,106 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:36,106 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] [2020-07-07 11:33:36,106 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-07-07 11:33:36,107 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]=== [2020-07-07 11:33:36,107 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:36,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1627614740, now seen corresponding path program 1 times [2020-07-07 11:33:36,107 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:36,108 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851078030] [2020-07-07 11:33:36,108 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:36,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,155 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:36,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851078030] [2020-07-07 11:33:36,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:36,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:36,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729386104] [2020-07-07 11:33:36,157 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:36,157 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:36,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:36,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:36,158 INFO L87 Difference]: Start difference. First operand 59 states and 61 transitions. Second operand 6 states. [2020-07-07 11:33:36,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:36,290 INFO L93 Difference]: Finished difference Result 70 states and 73 transitions. [2020-07-07 11:33:36,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:36,291 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 41 [2020-07-07 11:33:36,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:36,292 INFO L225 Difference]: With dead ends: 70 [2020-07-07 11:33:36,292 INFO L226 Difference]: Without dead ends: 68 [2020-07-07 11:33:36,292 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 [2020-07-07 11:33:36,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-07 11:33:36,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-07-07 11:33:36,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-07-07 11:33:36,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 70 transitions. [2020-07-07 11:33:36,298 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 70 transitions. Word has length 41 [2020-07-07 11:33:36,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:36,298 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 70 transitions. [2020-07-07 11:33:36,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:36,298 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 70 transitions. [2020-07-07 11:33:36,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-07 11:33:36,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:36,299 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] [2020-07-07 11:33:36,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-07-07 11:33:36,300 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]=== [2020-07-07 11:33:36,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:36,300 INFO L82 PathProgramCache]: Analyzing trace with hash 1083553822, now seen corresponding path program 1 times [2020-07-07 11:33:36,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:36,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1079909000] [2020-07-07 11:33:36,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:36,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:36,345 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1079909000] [2020-07-07 11:33:36,345 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:36,345 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:36,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116429733] [2020-07-07 11:33:36,346 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:36,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:36,346 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:36,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:36,347 INFO L87 Difference]: Start difference. First operand 66 states and 70 transitions. Second operand 6 states. [2020-07-07 11:33:36,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:36,509 INFO L93 Difference]: Finished difference Result 68 states and 71 transitions. [2020-07-07 11:33:36,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:36,510 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-07-07 11:33:36,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:36,511 INFO L225 Difference]: With dead ends: 68 [2020-07-07 11:33:36,511 INFO L226 Difference]: Without dead ends: 66 [2020-07-07 11:33:36,512 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 [2020-07-07 11:33:36,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-07 11:33:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 64. [2020-07-07 11:33:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-07 11:33:36,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 68 transitions. [2020-07-07 11:33:36,517 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 68 transitions. Word has length 42 [2020-07-07 11:33:36,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:36,518 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 68 transitions. [2020-07-07 11:33:36,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:36,518 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 68 transitions. [2020-07-07 11:33:36,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-07 11:33:36,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:36,519 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] [2020-07-07 11:33:36,519 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-07-07 11:33:36,519 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]=== [2020-07-07 11:33:36,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:36,519 INFO L82 PathProgramCache]: Analyzing trace with hash -769566670, now seen corresponding path program 1 times [2020-07-07 11:33:36,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:36,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460605449] [2020-07-07 11:33:36,520 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:36,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:36,570 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460605449] [2020-07-07 11:33:36,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:36,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:36,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525378519] [2020-07-07 11:33:36,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:36,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:36,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:36,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:36,572 INFO L87 Difference]: Start difference. First operand 64 states and 68 transitions. Second operand 6 states. [2020-07-07 11:33:36,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:36,842 INFO L93 Difference]: Finished difference Result 90 states and 95 transitions. [2020-07-07 11:33:36,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-07 11:33:36,843 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 43 [2020-07-07 11:33:36,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:36,844 INFO L225 Difference]: With dead ends: 90 [2020-07-07 11:33:36,844 INFO L226 Difference]: Without dead ends: 88 [2020-07-07 11:33:36,844 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 [2020-07-07 11:33:36,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2020-07-07 11:33:36,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2020-07-07 11:33:36,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-07-07 11:33:36,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 74 transitions. [2020-07-07 11:33:36,850 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 74 transitions. Word has length 43 [2020-07-07 11:33:36,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:36,851 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 74 transitions. [2020-07-07 11:33:36,851 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:36,851 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 74 transitions. [2020-07-07 11:33:36,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-07 11:33:36,851 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:36,851 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] [2020-07-07 11:33:36,852 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-07-07 11:33:36,852 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]=== [2020-07-07 11:33:36,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:36,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1913240228, now seen corresponding path program 1 times [2020-07-07 11:33:36,852 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:36,853 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419779390] [2020-07-07 11:33:36,853 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:36,931 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:36,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419779390] [2020-07-07 11:33:36,931 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:36,931 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:36,932 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240599229] [2020-07-07 11:33:36,932 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:36,932 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:36,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:36,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:36,933 INFO L87 Difference]: Start difference. First operand 69 states and 74 transitions. Second operand 6 states. [2020-07-07 11:33:37,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:37,109 INFO L93 Difference]: Finished difference Result 75 states and 79 transitions. [2020-07-07 11:33:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 11:33:37,109 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 44 [2020-07-07 11:33:37,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:37,110 INFO L225 Difference]: With dead ends: 75 [2020-07-07 11:33:37,110 INFO L226 Difference]: Without dead ends: 73 [2020-07-07 11:33:37,111 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 [2020-07-07 11:33:37,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-07-07 11:33:37,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 67. [2020-07-07 11:33:37,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-07-07 11:33:37,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 72 transitions. [2020-07-07 11:33:37,116 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 72 transitions. Word has length 44 [2020-07-07 11:33:37,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:37,117 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 72 transitions. [2020-07-07 11:33:37,117 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:37,117 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 72 transitions. [2020-07-07 11:33:37,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-07 11:33:37,118 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:37,118 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] [2020-07-07 11:33:37,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-07-07 11:33:37,119 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]=== [2020-07-07 11:33:37,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:37,119 INFO L82 PathProgramCache]: Analyzing trace with hash -1562566919, now seen corresponding path program 1 times [2020-07-07 11:33:37,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:37,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085818441] [2020-07-07 11:33:37,120 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:37,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:37,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:37,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:37,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085818441] [2020-07-07 11:33:37,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227593706] [2020-07-07 11:33:37,229 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 [2020-07-07 11:33:37,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:37,286 INFO L264 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-07 11:33:37,289 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:33:37,317 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:33:37,333 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:37,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-07 11:33:37,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 9 [2020-07-07 11:33:37,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918472829] [2020-07-07 11:33:37,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 11:33:37,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:37,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 11:33:37,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-07 11:33:37,335 INFO L87 Difference]: Start difference. First operand 67 states and 72 transitions. Second operand 9 states. [2020-07-07 11:33:37,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:37,525 INFO L93 Difference]: Finished difference Result 68 states and 73 transitions. [2020-07-07 11:33:37,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:33:37,526 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 44 [2020-07-07 11:33:37,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:37,526 INFO L225 Difference]: With dead ends: 68 [2020-07-07 11:33:37,527 INFO L226 Difference]: Without dead ends: 66 [2020-07-07 11:33:37,527 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 42 SyntacticMatches, 8 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-07-07 11:33:37,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-07-07 11:33:37,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 65. [2020-07-07 11:33:37,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 65 states. [2020-07-07 11:33:37,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 69 transitions. [2020-07-07 11:33:37,533 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 69 transitions. Word has length 44 [2020-07-07 11:33:37,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:37,534 INFO L479 AbstractCegarLoop]: Abstraction has 65 states and 69 transitions. [2020-07-07 11:33:37,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 11:33:37,534 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 69 transitions. [2020-07-07 11:33:37,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-07-07 11:33:37,534 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:37,535 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] [2020-07-07 11:33:37,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2020-07-07 11:33:37,746 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]=== [2020-07-07 11:33:37,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:37,747 INFO L82 PathProgramCache]: Analyzing trace with hash 790604971, now seen corresponding path program 1 times [2020-07-07 11:33:37,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:37,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714842120] [2020-07-07 11:33:37,748 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:37,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 11:33:37,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714842120] [2020-07-07 11:33:37,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 11:33:37,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 11:33:37,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191588071] [2020-07-07 11:33:37,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 11:33:37,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:37,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 11:33:37,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-07 11:33:37,803 INFO L87 Difference]: Start difference. First operand 65 states and 69 transitions. Second operand 6 states. [2020-07-07 11:33:38,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:38,046 INFO L93 Difference]: Finished difference Result 77 states and 82 transitions. [2020-07-07 11:33:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 11:33:38,046 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 49 [2020-07-07 11:33:38,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:38,047 INFO L225 Difference]: With dead ends: 77 [2020-07-07 11:33:38,047 INFO L226 Difference]: Without dead ends: 75 [2020-07-07 11:33:38,048 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 [2020-07-07 11:33:38,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-07 11:33:38,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 55. [2020-07-07 11:33:38,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-07 11:33:38,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2020-07-07 11:33:38,054 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 49 [2020-07-07 11:33:38,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:38,055 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2020-07-07 11:33:38,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 11:33:38,055 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2020-07-07 11:33:38,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-07-07 11:33:38,056 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 11:33:38,056 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] [2020-07-07 11:33:38,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-07-07 11:33:38,056 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]=== [2020-07-07 11:33:38,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 11:33:38,057 INFO L82 PathProgramCache]: Analyzing trace with hash 705971477, now seen corresponding path program 1 times [2020-07-07 11:33:38,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-07 11:33:38,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1406105000] [2020-07-07 11:33:38,057 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 11:33:38,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:38,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:38,117 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 11:33:38,117 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1406105000] [2020-07-07 11:33:38,118 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [663620546] [2020-07-07 11:33:38,118 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:33:38,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 11:33:38,172 INFO L264 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 5 conjunts are in the unsatisfiable core [2020-07-07 11:33:38,175 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-07 11:33:38,189 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-07 11:33:38,203 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-07-07 11:33:38,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-07 11:33:38,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 7 [2020-07-07 11:33:38,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262927367] [2020-07-07 11:33:38,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 11:33:38,205 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-07 11:33:38,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 11:33:38,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-07-07 11:33:38,205 INFO L87 Difference]: Start difference. First operand 55 states and 58 transitions. Second operand 4 states. [2020-07-07 11:33:38,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 11:33:38,245 INFO L93 Difference]: Finished difference Result 60 states and 63 transitions. [2020-07-07 11:33:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 11:33:38,246 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 51 [2020-07-07 11:33:38,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 11:33:38,246 INFO L225 Difference]: With dead ends: 60 [2020-07-07 11:33:38,247 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 11:33:38,247 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-07 11:33:38,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 11:33:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 11:33:38,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 11:33:38,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 11:33:38,249 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 51 [2020-07-07 11:33:38,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 11:33:38,249 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 11:33:38,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 11:33:38,249 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 11:33:38,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 11:33:38,455 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-07 11:33:38,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 11:33:38,648 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 110 [2020-07-07 11:33:38,886 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 32 [2020-07-07 11:33:39,352 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2020-07-07 11:33:39,504 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 32 [2020-07-07 11:33:39,795 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2020-07-07 11:33:39,798 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:33:39,799 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)|)) [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-07 11:33:39,799 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-07 11:33:39,799 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 4 6) no Hoare annotation was computed. [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point L5-2(lines 4 6) no Hoare annotation was computed. [2020-07-07 11:33:39,799 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 4 6) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point L192(lines 192 352) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point mainErr3ASSERT_VIOLATIONERROR_FUNCTION(line 123) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point L382(lines 382 391) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point L93(lines 93 410) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point L27(lines 27 435) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 11 437) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-07-07 11:33:39,800 INFO L264 CegarLoopResult]: At program point L399(lines 129 400) the Hoare annotation is: (and (< main_~main__cp~0 main_~main__urilen~0) (= 1 main_~__VERIFIER_assert__cond~3) (= |old(~__return_375~0)| ~__return_375~0) (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)))) [2020-07-07 11:33:39,800 INFO L268 CegarLoopResult]: For program point mainErr11ASSERT_VIOLATIONERROR_FUNCTION(line 253) no Hoare annotation was computed. [2020-07-07 11:33:39,801 INFO L268 CegarLoopResult]: For program point L102(lines 102 409) no Hoare annotation was computed. [2020-07-07 11:33:39,801 INFO L268 CegarLoopResult]: For program point L69(lines 69 414) no Hoare annotation was computed. [2020-07-07 11:33:39,801 INFO L264 CegarLoopResult]: At program point L325(lines 260 326) the Hoare annotation is: (let ((.cse0 (= 1 main_~__VERIFIER_assert__cond~9)) (.cse1 (not (= 0 main_~__VERIFIER_assert__cond~2))) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~8))) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~5))) (.cse4 (not (= (+ main_~main__cp~0 1) main_~main__urilen~0))) (.cse5 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse6 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse7 (= |old(~__return_375~0)| ~__return_375~0)) (.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 (= 0 main_~__VERIFIER_assert__cond~0))) (.cse13 (< main_~main__cp~0 main_~main__urilen~0)) (.cse14 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse15 (<= 1 main_~main__cp~0)) (.cse16 (< 0 main_~main__scheme~0))) (or (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse3 .cse4 (not (= main_~__VERIFIER_assert__cond~15 0)) .cse5 .cse6 .cse7 .cse8 (<= 1 main_~__VERIFIER_assert__cond~12) .cse9 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (<= 1 main_~main__c~0)) (and .cse0 .cse1 .cse2 (= 0 main_~main__c~0) .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse14 .cse15 .cse16))) [2020-07-07 11:33:39,801 INFO L268 CegarLoopResult]: For program point L292(lines 292 316) no Hoare annotation was computed. [2020-07-07 11:33:39,801 INFO L268 CegarLoopResult]: For program point L160(lines 160 357) no Hoare annotation was computed. [2020-07-07 11:33:39,801 INFO L268 CegarLoopResult]: For program point L61(lines 61 420) no Hoare annotation was computed. [2020-07-07 11:33:39,801 INFO L268 CegarLoopResult]: For program point L251(lines 251 327) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point L185(lines 185 353) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point mainErr6ASSERT_VIOLATIONERROR_FUNCTION(line 175) no Hoare annotation was computed. [2020-07-07 11:33:39,802 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)) [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point L210(lines 210 344) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point L111(line 111) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point L45(lines 45 432) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point L268(lines 268 320) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point mainErr14ASSERT_VIOLATIONERROR_FUNCTION(line 294) no Hoare annotation was computed. [2020-07-07 11:33:39,802 INFO L268 CegarLoopResult]: For program point L202(lines 202 351) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L260(lines 260 326) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L384(line 384) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L153(lines 153 358) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point mainErr5ASSERT_VIOLATIONERROR_FUNCTION(line 155) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L21(lines 21 436) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 11 437) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point mainErr13ASSERT_VIOLATIONERROR_FUNCTION(line 282) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L294(line 294) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 83) no Hoare annotation was computed. [2020-07-07 11:33:39,803 INFO L268 CegarLoopResult]: For program point L63(lines 63 415) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 11 437) the Hoare annotation is: (= |old(~__return_375~0)| ~__return_375~0) [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L253(line 253) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L121(lines 121 401) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L270(line 270) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point mainErr8ASSERT_VIOLATIONERROR_FUNCTION(line 212) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L39(lines 39 433) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point mainErr16ASSERT_VIOLATIONERROR_FUNCTION(line 372) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-07-07 11:33:39,804 INFO L268 CegarLoopResult]: For program point mainErr7ASSERT_VIOLATIONERROR_FUNCTION(line 187) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point L370(lines 370 393) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point L81(lines 81 412) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point L304(lines 304 314) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point mainErr15ASSERT_VIOLATIONERROR_FUNCTION(line 306) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point mainErr2ASSERT_VIOLATIONERROR_FUNCTION(line 111) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point L222(lines 222 342) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point L123(line 123) no Hoare annotation was computed. [2020-07-07 11:33:39,805 INFO L268 CegarLoopResult]: For program point L57(lines 57 430) no Hoare annotation was computed. [2020-07-07 11:33:39,806 INFO L264 CegarLoopResult]: At program point L313(lines 228 342) the Hoare annotation is: (let ((.cse0 (= 1 main_~__VERIFIER_assert__cond~9)) (.cse1 (not (= 0 main_~__VERIFIER_assert__cond~2))) (.cse2 (not (= 0 main_~__VERIFIER_assert__cond~8))) (.cse17 (= 0 main_~main__c~0)) (.cse3 (not (= 0 main_~__VERIFIER_assert__cond~5))) (.cse4 (<= 1 main_~__VERIFIER_assert__cond~4)) (.cse5 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse6 (= |old(~__return_375~0)| ~__return_375~0)) (.cse7 (not (= 0 main_~__VERIFIER_assert__cond~6))) (.cse8 (<= 0 main_~main__cp~0)) (.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 (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse14 (<= 1 main_~main__cp~0)) (.cse15 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse16 (< 0 main_~main__scheme~0))) (or (and .cse0 .cse1 .cse2 (not (= main_~__VERIFIER_assert__cond~14 0)) .cse3 (not (= main_~__VERIFIER_assert__cond~15 0)) .cse4 .cse5 .cse6 .cse7 (<= 1 main_~__VERIFIER_assert__cond~12) .cse8 (not (= main_~__VERIFIER_assert__cond~13 0)) .cse9 .cse10 .cse11 .cse12 .cse13 .cse14 .cse15 .cse16 (<= 1 main_~main__c~0)) (and .cse0 .cse1 .cse2 .cse17 .cse3 .cse4 .cse5 .cse6 (= 1 main_~__VERIFIER_assert__cond~8) .cse7 .cse8 .cse9 (<= (+ main_~main__cp~0 2) main_~main__urilen~0) .cse12 .cse13 .cse14 .cse15 .cse16) (and .cse0 .cse1 .cse2 .cse17 .cse3 .cse4 .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11 .cse12 .cse13 (<= (+ main_~main__c~0 2) main_~main__tokenlen~0) .cse14 .cse15 .cse16))) [2020-07-07 11:33:39,806 INFO L268 CegarLoopResult]: For program point L280(lines 280 318) no Hoare annotation was computed. [2020-07-07 11:33:39,806 INFO L268 CegarLoopResult]: For program point L239(lines 239 329) no Hoare annotation was computed. [2020-07-07 11:33:39,806 INFO L268 CegarLoopResult]: For program point L173(lines 173 355) no Hoare annotation was computed. [2020-07-07 11:33:39,806 INFO L268 CegarLoopResult]: For program point mainErr10ASSERT_VIOLATIONERROR_FUNCTION(line 241) no Hoare annotation was computed. [2020-07-07 11:33:39,806 INFO L268 CegarLoopResult]: For program point L33(lines 33 434) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point mainErr1ASSERT_VIOLATIONERROR_FUNCTION(line 95) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point L372(line 372) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point L306(line 306) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point L141(lines 141 360) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point mainErr9ASSERT_VIOLATIONERROR_FUNCTION(line 224) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point L232(lines 232 336) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point mainErr17ASSERT_VIOLATIONERROR_FUNCTION(line 384) no Hoare annotation was computed. [2020-07-07 11:33:39,807 INFO L268 CegarLoopResult]: For program point L133(lines 133 395) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point L224(line 224) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point mainErr4ASSERT_VIOLATIONERROR_FUNCTION(line 143) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point L59(lines 59 425) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point L282(line 282) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point L51(lines 51 431) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point L241(line 241) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point mainErr12ASSERT_VIOLATIONERROR_FUNCTION(line 270) no Hoare annotation was computed. [2020-07-07 11:33:39,808 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-07 11:33:39,809 INFO L268 CegarLoopResult]: For program point L109(lines 109 403) no Hoare annotation was computed. [2020-07-07 11:33:39,809 INFO L264 CegarLoopResult]: At program point L390(lines 127 401) the Hoare annotation is: (let ((.cse0 (<= (+ main_~main__cp~0 1) main_~main__urilen~0)) (.cse1 (not (= 0 main_~__VERIFIER_assert__cond~0))) (.cse2 (= |old(~__return_375~0)| ~__return_375~0)) (.cse3 (= 1 main_~__VERIFIER_assert__cond~3)) (.cse4 (<= 1 main_~main__cp~0)) (.cse5 (not (= 0 main_~__VERIFIER_assert__cond~1))) (.cse6 (< 0 main_~main__scheme~0))) (or (and (<= 1 main_~__VERIFIER_assert__cond~16) (not (= 0 main_~__VERIFIER_assert__cond~2)) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (not (= main_~__VERIFIER_assert__cond~17 0))) (and (= 1 main_~__VERIFIER_assert__cond~2) .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6))) [2020-07-07 11:33:39,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 11:33:39 BoogieIcfgContainer [2020-07-07 11:33:39,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 11:33:39,838 INFO L168 Benchmark]: Toolchain (without parser) took 10338.76 ms. Allocated memory was 136.3 MB in the beginning and 335.0 MB in the end (delta: 198.7 MB). Free memory was 99.8 MB in the beginning and 223.3 MB in the end (delta: -123.4 MB). Peak memory consumption was 188.6 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:39,838 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-07-07 11:33:39,839 INFO L168 Benchmark]: CACSL2BoogieTranslator took 325.95 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 86.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:39,839 INFO L168 Benchmark]: Boogie Preprocessor took 130.70 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 86.6 MB in the beginning and 178.1 MB in the end (delta: -91.5 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:39,840 INFO L168 Benchmark]: RCFGBuilder took 497.30 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 150.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:39,841 INFO L168 Benchmark]: TraceAbstraction took 9379.98 ms. Allocated memory was 200.8 MB in the beginning and 335.0 MB in the end (delta: 134.2 MB). Free memory was 149.4 MB in the beginning and 223.3 MB in the end (delta: -73.8 MB). Peak memory consumption was 173.7 MB. Max. memory is 7.1 GB. [2020-07-07 11:33:39,843 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 136.3 MB. Free memory was 118.2 MB in the beginning and 117.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 325.95 ms. Allocated memory is still 136.3 MB. Free memory was 99.6 MB in the beginning and 86.6 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 130.70 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 86.6 MB in the beginning and 178.1 MB in the end (delta: -91.5 MB). Peak memory consumption was 13.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 497.30 ms. Allocated memory is still 200.8 MB. Free memory was 178.1 MB in the beginning and 150.1 MB in the end (delta: 28.0 MB). Peak memory consumption was 28.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 9379.98 ms. Allocated memory was 200.8 MB in the beginning and 335.0 MB in the end (delta: 134.2 MB). Free memory was 149.4 MB in the beginning and 223.3 MB in the end (delta: -73.8 MB). Peak memory consumption was 173.7 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 && !(0 == __VERIFIER_assert__cond)) && main__cp + 1 <= main__urilen) && !(0 == __VERIFIER_assert__cond)) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) && !(__VERIFIER_assert__cond == 0)) || (((((((1 == __VERIFIER_assert__cond && main__cp + 1 <= main__urilen) && !(0 == __VERIFIER_assert__cond)) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) - 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)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && 0 <= main__cp) && !(__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) && 1 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && 0 < main__scheme) && 1 <= main__c) || (((((((((((((((((1 == __VERIFIER_assert__cond && !(0 == __VERIFIER_assert__cond)) && !(0 == __VERIFIER_assert__cond)) && 0 == main__c) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && 1 == __VERIFIER_assert__cond) && !(0 == __VERIFIER_assert__cond)) && 0 <= main__cp) && !(0 == __VERIFIER_assert__cond)) && main__cp + 2 <= main__urilen) && !(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)) && 0 == main__c) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && !(0 == __VERIFIER_assert__cond)) && 0 <= main__cp) && !(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) - InvariantResult [Line: 129]: Loop Invariant Derived loop invariant: ((main__cp < main__urilen && 1 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && ((((((!(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)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(main__cp + 1 == main__urilen)) && !(__VERIFIER_assert__cond == 0)) && 1 <= __VERIFIER_assert__cond) && 1 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && !(0 == __VERIFIER_assert__cond)) && 1 <= __VERIFIER_assert__cond) && __VERIFIER_assert__cond == 1) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && main__cp < main__urilen) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && 0 < main__scheme) && 1 <= main__c) || ((((((((((((((((((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) && 1 == __VERIFIER_assert__cond) && \old(__return_375) == __return_375) && !(0 == __VERIFIER_assert__cond)) && __VERIFIER_assert__cond == 1) && !(0 == __VERIFIER_assert__cond)) && !(__VERIFIER_assert__cond == 0)) && !(0 == __VERIFIER_assert__cond)) && main__cp < main__urilen) && main__c + 2 <= main__tokenlen) && !(0 == __VERIFIER_assert__cond)) && 1 <= main__cp) && 0 < main__scheme) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 91 locations, 18 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 7.9s, OverallIterations: 24, TraceHistogramMax: 2, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1391 SDtfs, 3882 SDslu, 433 SDs, 0 SdLazy, 2581 SolverSat, 209 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 426 GetRequests, 225 SyntacticMatches, 16 SemanticMatches, 185 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 2.0s 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: 0.1s AutomataMinimizationTime, 24 MinimizatonAttempts, 289 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 9 PreInvPairs, 17 NumberOfFragments, 509 HoareAnnotationTreeSize, 9 FomulaSimplifications, 58018 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 9 FomulaSimplificationsInter, 11810 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 929 ConstructedInterpolants, 0 QuantifiedInterpolants, 81019 SizeOfPredicates, 19 NumberOfNonLiveVariables, 547 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 28 InterpolantComputations, 21 PerfectInterpolantSequences, 16/33 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...