/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/recursive-simple/fibo_2calls_8-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:19:59,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:19:59,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:19:59,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:19:59,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:19:59,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:19:59,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:19:59,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:19:59,871 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:19:59,872 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:19:59,873 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:19:59,874 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:19:59,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:19:59,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:19:59,877 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:19:59,878 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:19:59,879 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:19:59,880 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:19:59,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:19:59,884 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:19:59,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:19:59,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:19:59,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:19:59,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:19:59,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 13:19:59,893 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 13:19:59,893 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 13:19:59,894 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 13:19:59,895 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 13:19:59,896 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 13:19:59,896 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 13:19:59,897 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 13:19:59,898 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 13:19:59,899 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 13:19:59,901 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 13:19:59,901 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 13:19:59,902 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 13:19:59,902 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 13:19:59,902 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:19:59,903 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:19:59,904 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:19:59,905 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:19:59,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:19:59,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:19:59,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:19:59,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:19:59,935 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:19:59,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:19:59,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:19:59,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:19:59,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:19:59,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:19:59,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:19:59,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:19:59,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:19:59,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:19:59,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:19:59,937 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:19:59,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:19:59,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:19:59,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:19:59,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:19:59,938 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:19:59,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:19:59,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:19:59,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:19:59,939 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:19:59,939 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:19:59,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:19:59,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:19:59,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:19:59,940 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:20:00,380 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:20:00,400 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:20:00,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:20:00,408 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:20:00,408 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:20:00,410 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-04 13:20:00,521 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a03ff8f0/a7ef3a73534347c283b703b580e2a3a1/FLAG9b9f7757a [2020-09-04 13:20:01,120 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:20:01,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_8-1.c [2020-09-04 13:20:01,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a03ff8f0/a7ef3a73534347c283b703b580e2a3a1/FLAG9b9f7757a [2020-09-04 13:20:01,468 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2a03ff8f0/a7ef3a73534347c283b703b580e2a3a1 [2020-09-04 13:20:01,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:20:01,488 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:20:01,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:20:01,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:20:01,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:20:01,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,501 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72eb96f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01, skipping insertion in model container [2020-09-04 13:20:01,501 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:20:01,539 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:20:01,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:20:01,781 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:20:01,801 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:20:01,818 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:20:01,818 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01 WrapperNode [2020-09-04 13:20:01,819 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:20:01,820 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:20:01,820 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:20:01,820 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:20:01,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,958 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,962 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... [2020-09-04 13:20:01,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:20:01,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:20:01,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:20:01,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:20:01,970 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:20:02,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:20:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:20:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-04 13:20:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-04 13:20:02,060 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:20:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:20:02,060 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:20:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-04 13:20:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-04 13:20:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:20:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:20:02,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:20:02,295 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:20:02,296 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-04 13:20:02,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:20:02 BoogieIcfgContainer [2020-09-04 13:20:02,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:20:02,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:20:02,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:20:02,309 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:20:02,310 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:20:01" (1/3) ... [2020-09-04 13:20:02,311 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:20:02, skipping insertion in model container [2020-09-04 13:20:02,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:20:01" (2/3) ... [2020-09-04 13:20:02,312 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7124409b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:20:02, skipping insertion in model container [2020-09-04 13:20:02,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:20:02" (3/3) ... [2020-09-04 13:20:02,314 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_8-1.c [2020-09-04 13:20:02,329 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:20:02,342 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:20:02,371 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:20:02,442 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:20:02,443 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:20:02,443 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:20:02,443 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:20:02,443 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:20:02,444 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:20:02,444 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:20:02,444 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:20:02,475 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-09-04 13:20:02,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-09-04 13:20:02,488 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:02,490 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:02,491 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:02,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:02,499 INFO L82 PathProgramCache]: Analyzing trace with hash 1464461757, now seen corresponding path program 1 times [2020-09-04 13:20:02,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:02,510 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988101297] [2020-09-04 13:20:02,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:02,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:02,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:02,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:02,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:02,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:20:02,825 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988101297] [2020-09-04 13:20:02,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:20:02,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 13:20:02,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399747648] [2020-09-04 13:20:02,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:20:02,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:02,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:20:02,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:20:02,871 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 5 states. [2020-09-04 13:20:03,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:03,032 INFO L93 Difference]: Finished difference Result 44 states and 53 transitions. [2020-09-04 13:20:03,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:20:03,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-09-04 13:20:03,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:03,048 INFO L225 Difference]: With dead ends: 44 [2020-09-04 13:20:03,049 INFO L226 Difference]: Without dead ends: 30 [2020-09-04 13:20:03,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:20:03,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2020-09-04 13:20:03,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2020-09-04 13:20:03,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-04 13:20:03,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-09-04 13:20:03,116 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 13 [2020-09-04 13:20:03,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:03,116 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-09-04 13:20:03,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:20:03,117 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-09-04 13:20:03,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-09-04 13:20:03,119 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:03,119 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:03,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:20:03,120 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:03,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:03,121 INFO L82 PathProgramCache]: Analyzing trace with hash -1134800479, now seen corresponding path program 1 times [2020-09-04 13:20:03,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:03,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047873958] [2020-09-04 13:20:03,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:03,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:03,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:20:03,227 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047873958] [2020-09-04 13:20:03,227 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:20:03,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 13:20:03,228 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773311718] [2020-09-04 13:20:03,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:20:03,232 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:03,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:20:03,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:20:03,233 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 5 states. [2020-09-04 13:20:03,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:03,332 INFO L93 Difference]: Finished difference Result 36 states and 44 transitions. [2020-09-04 13:20:03,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 13:20:03,333 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 14 [2020-09-04 13:20:03,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:03,335 INFO L225 Difference]: With dead ends: 36 [2020-09-04 13:20:03,336 INFO L226 Difference]: Without dead ends: 32 [2020-09-04 13:20:03,338 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:20:03,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2020-09-04 13:20:03,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 30. [2020-09-04 13:20:03,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2020-09-04 13:20:03,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2020-09-04 13:20:03,349 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 14 [2020-09-04 13:20:03,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:03,350 INFO L479 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2020-09-04 13:20:03,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:20:03,350 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2020-09-04 13:20:03,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-09-04 13:20:03,352 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:03,352 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:03,353 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 13:20:03,353 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:03,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:03,354 INFO L82 PathProgramCache]: Analyzing trace with hash -1592795560, now seen corresponding path program 1 times [2020-09-04 13:20:03,354 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:03,355 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178616521] [2020-09-04 13:20:03,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:03,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:03,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:03,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:20:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,502 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:20:03,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178616521] [2020-09-04 13:20:03,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114312334] [2020-09-04 13:20:03,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:20:03,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:03,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:20:03,577 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:03,759 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:20:03,760 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:03,760 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2020-09-04 13:20:03,760 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181480856] [2020-09-04 13:20:03,761 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:20:03,762 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:03,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:20:03,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:20:03,763 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 10 states. [2020-09-04 13:20:04,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:04,065 INFO L93 Difference]: Finished difference Result 58 states and 78 transitions. [2020-09-04 13:20:04,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 13:20:04,066 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-09-04 13:20:04,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:04,068 INFO L225 Difference]: With dead ends: 58 [2020-09-04 13:20:04,068 INFO L226 Difference]: Without dead ends: 34 [2020-09-04 13:20:04,069 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:20:04,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-09-04 13:20:04,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 32. [2020-09-04 13:20:04,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2020-09-04 13:20:04,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2020-09-04 13:20:04,079 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 26 [2020-09-04 13:20:04,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:04,080 INFO L479 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2020-09-04 13:20:04,080 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:20:04,080 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2020-09-04 13:20:04,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 13:20:04,082 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:04,082 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] [2020-09-04 13:20:04,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-09-04 13:20:04,300 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:04,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:04,301 INFO L82 PathProgramCache]: Analyzing trace with hash 746633022, now seen corresponding path program 1 times [2020-09-04 13:20:04,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:04,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2093092392] [2020-09-04 13:20:04,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:04,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:04,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:04,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:04,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:04,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:04,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:04,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:04,453 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:20:04,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2093092392] [2020-09-04 13:20:04,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156721201] [2020-09-04 13:20:04,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2020-09-04 13:20:04,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:04,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:20:04,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:20:04,556 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:04,557 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2020-09-04 13:20:04,557 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870789595] [2020-09-04 13:20:04,558 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 13:20:04,558 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:04,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 13:20:04,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:20:04,559 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand 9 states. [2020-09-04 13:20:04,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:04,766 INFO L93 Difference]: Finished difference Result 54 states and 74 transitions. [2020-09-04 13:20:04,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:20:04,767 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 27 [2020-09-04 13:20:04,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:04,771 INFO L225 Difference]: With dead ends: 54 [2020-09-04 13:20:04,772 INFO L226 Difference]: Without dead ends: 50 [2020-09-04 13:20:04,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:20:04,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-09-04 13:20:04,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 48. [2020-09-04 13:20:04,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-04 13:20:04,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 65 transitions. [2020-09-04 13:20:04,790 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 65 transitions. Word has length 27 [2020-09-04 13:20:04,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:04,790 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 65 transitions. [2020-09-04 13:20:04,790 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 13:20:04,790 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 65 transitions. [2020-09-04 13:20:04,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-09-04 13:20:04,793 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:04,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:05,008 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:05,009 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:05,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:05,010 INFO L82 PathProgramCache]: Analyzing trace with hash 986908919, now seen corresponding path program 1 times [2020-09-04 13:20:05,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:05,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519325494] [2020-09-04 13:20:05,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:05,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:05,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:05,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:05,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-04 13:20:05,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-04 13:20:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,198 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-04 13:20:05,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519325494] [2020-09-04 13:20:05,199 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046102945] [2020-09-04 13:20:05,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:20:05,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:05,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-04 13:20:05,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:05,358 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:20:05,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:05,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8] total 11 [2020-09-04 13:20:05,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963790819] [2020-09-04 13:20:05,360 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:20:05,361 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:05,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:20:05,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:20:05,362 INFO L87 Difference]: Start difference. First operand 48 states and 65 transitions. Second operand 11 states. [2020-09-04 13:20:05,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:05,719 INFO L93 Difference]: Finished difference Result 108 states and 170 transitions. [2020-09-04 13:20:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-09-04 13:20:05,720 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 39 [2020-09-04 13:20:05,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:05,724 INFO L225 Difference]: With dead ends: 108 [2020-09-04 13:20:05,724 INFO L226 Difference]: Without dead ends: 66 [2020-09-04 13:20:05,726 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2020-09-04 13:20:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2020-09-04 13:20:05,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2020-09-04 13:20:05,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-04 13:20:05,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 95 transitions. [2020-09-04 13:20:05,745 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 95 transitions. Word has length 39 [2020-09-04 13:20:05,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:05,745 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 95 transitions. [2020-09-04 13:20:05,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:20:05,746 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 95 transitions. [2020-09-04 13:20:05,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2020-09-04 13:20:05,748 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:05,749 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:05,963 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:05,964 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:05,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:05,965 INFO L82 PathProgramCache]: Analyzing trace with hash -2100495745, now seen corresponding path program 1 times [2020-09-04 13:20:05,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:05,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894315320] [2020-09-04 13:20:05,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:05,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:06,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:06,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:06,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:06,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,149 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-04 13:20:06,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894315320] [2020-09-04 13:20:06,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255522313] [2020-09-04 13:20:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:20:06,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:06,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 8 conjunts are in the unsatisfiable core [2020-09-04 13:20:06,186 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:06,326 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-04 13:20:06,326 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:06,327 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2020-09-04 13:20:06,327 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874577681] [2020-09-04 13:20:06,328 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-09-04 13:20:06,328 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:06,328 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-09-04 13:20:06,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:20:06,331 INFO L87 Difference]: Start difference. First operand 66 states and 95 transitions. Second operand 13 states. [2020-09-04 13:20:06,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:06,893 INFO L93 Difference]: Finished difference Result 180 states and 324 transitions. [2020-09-04 13:20:06,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-04 13:20:06,895 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 40 [2020-09-04 13:20:06,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:06,899 INFO L225 Difference]: With dead ends: 180 [2020-09-04 13:20:06,900 INFO L226 Difference]: Without dead ends: 120 [2020-09-04 13:20:06,903 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=86, Invalid=376, Unknown=0, NotChecked=0, Total=462 [2020-09-04 13:20:06,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-09-04 13:20:06,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 106. [2020-09-04 13:20:06,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-04 13:20:06,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 169 transitions. [2020-09-04 13:20:06,933 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 169 transitions. Word has length 40 [2020-09-04 13:20:06,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:06,933 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 169 transitions. [2020-09-04 13:20:06,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-09-04 13:20:06,934 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 169 transitions. [2020-09-04 13:20:06,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-09-04 13:20:06,938 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:06,939 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:07,153 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:07,154 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:07,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:07,155 INFO L82 PathProgramCache]: Analyzing trace with hash -405677468, now seen corresponding path program 1 times [2020-09-04 13:20:07,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:07,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106158605] [2020-09-04 13:20:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:07,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:07,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:07,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:07,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:07,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:07,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:07,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2020-09-04 13:20:07,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 15 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2020-09-04 13:20:07,368 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106158605] [2020-09-04 13:20:07,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [476791064] [2020-09-04 13:20:07,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:07,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:07,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 10 conjunts are in the unsatisfiable core [2020-09-04 13:20:07,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:07,566 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 4 proven. 23 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-09-04 13:20:07,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:07,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 14 [2020-09-04 13:20:07,569 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596437322] [2020-09-04 13:20:07,569 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 13:20:07,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:07,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 13:20:07,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2020-09-04 13:20:07,573 INFO L87 Difference]: Start difference. First operand 106 states and 169 transitions. Second operand 14 states. [2020-09-04 13:20:08,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:08,247 INFO L93 Difference]: Finished difference Result 258 states and 498 transitions. [2020-09-04 13:20:08,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 13:20:08,253 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 54 [2020-09-04 13:20:08,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:08,256 INFO L225 Difference]: With dead ends: 258 [2020-09-04 13:20:08,256 INFO L226 Difference]: Without dead ends: 158 [2020-09-04 13:20:08,258 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=102, Invalid=450, Unknown=0, NotChecked=0, Total=552 [2020-09-04 13:20:08,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-04 13:20:08,282 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 112. [2020-09-04 13:20:08,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-09-04 13:20:08,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 180 transitions. [2020-09-04 13:20:08,285 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 180 transitions. Word has length 54 [2020-09-04 13:20:08,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:08,285 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 180 transitions. [2020-09-04 13:20:08,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 13:20:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 180 transitions. [2020-09-04 13:20:08,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-09-04 13:20:08,291 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:08,291 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:08,506 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-09-04 13:20:08,507 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:08,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:08,507 INFO L82 PathProgramCache]: Analyzing trace with hash -1504181040, now seen corresponding path program 1 times [2020-09-04 13:20:08,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:08,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240500035] [2020-09-04 13:20:08,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:08,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:08,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:08,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,576 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:08,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:08,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:08,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:08,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:08,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-04 13:20:08,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:08,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:08,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,758 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 39 proven. 38 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2020-09-04 13:20:08,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240500035] [2020-09-04 13:20:08,759 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048333343] [2020-09-04 13:20:08,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:08,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:08,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 12 conjunts are in the unsatisfiable core [2020-09-04 13:20:08,821 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:08,960 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 12 proven. 68 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2020-09-04 13:20:08,960 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:08,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-09-04 13:20:08,961 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943636139] [2020-09-04 13:20:08,962 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-04 13:20:08,962 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:08,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-04 13:20:08,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:20:08,963 INFO L87 Difference]: Start difference. First operand 112 states and 180 transitions. Second operand 16 states. [2020-09-04 13:20:09,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:09,701 INFO L93 Difference]: Finished difference Result 243 states and 465 transitions. [2020-09-04 13:20:09,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-04 13:20:09,701 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 82 [2020-09-04 13:20:09,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:09,704 INFO L225 Difference]: With dead ends: 243 [2020-09-04 13:20:09,704 INFO L226 Difference]: Without dead ends: 110 [2020-09-04 13:20:09,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=153, Invalid=717, Unknown=0, NotChecked=0, Total=870 [2020-09-04 13:20:09,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-09-04 13:20:09,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 87. [2020-09-04 13:20:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87 states. [2020-09-04 13:20:09,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 119 transitions. [2020-09-04 13:20:09,729 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 119 transitions. Word has length 82 [2020-09-04 13:20:09,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:09,730 INFO L479 AbstractCegarLoop]: Abstraction has 87 states and 119 transitions. [2020-09-04 13:20:09,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-04 13:20:09,731 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 119 transitions. [2020-09-04 13:20:09,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-09-04 13:20:09,737 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:09,738 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 7, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:09,939 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:09,940 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:09,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:09,941 INFO L82 PathProgramCache]: Analyzing trace with hash 2095197631, now seen corresponding path program 1 times [2020-09-04 13:20:09,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:09,942 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8855576] [2020-09-04 13:20:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:09,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:10,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:10,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:10,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-04 13:20:10,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:10,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-04 13:20:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:10,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:10,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,405 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 61 proven. 94 refuted. 0 times theorem prover too weak. 203 trivial. 0 not checked. [2020-09-04 13:20:10,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8855576] [2020-09-04 13:20:10,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [906350263] [2020-09-04 13:20:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:10,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:10,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 14 conjunts are in the unsatisfiable core [2020-09-04 13:20:10,471 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:10,661 INFO L134 CoverageAnalysis]: Checked inductivity of 358 backedges. 24 proven. 155 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2020-09-04 13:20:10,663 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:10,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 17 [2020-09-04 13:20:10,666 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782760688] [2020-09-04 13:20:10,668 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 13:20:10,668 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:10,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 13:20:10,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:20:10,669 INFO L87 Difference]: Start difference. First operand 87 states and 119 transitions. Second operand 17 states. [2020-09-04 13:20:11,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:11,503 INFO L93 Difference]: Finished difference Result 217 states and 375 transitions. [2020-09-04 13:20:11,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 13:20:11,504 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 123 [2020-09-04 13:20:11,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:11,506 INFO L225 Difference]: With dead ends: 217 [2020-09-04 13:20:11,506 INFO L226 Difference]: Without dead ends: 137 [2020-09-04 13:20:11,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 155 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=184, Invalid=872, Unknown=0, NotChecked=0, Total=1056 [2020-09-04 13:20:11,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2020-09-04 13:20:11,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 117. [2020-09-04 13:20:11,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 117 states. [2020-09-04 13:20:11,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 172 transitions. [2020-09-04 13:20:11,526 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 172 transitions. Word has length 123 [2020-09-04 13:20:11,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:11,527 INFO L479 AbstractCegarLoop]: Abstraction has 117 states and 172 transitions. [2020-09-04 13:20:11,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 13:20:11,527 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 172 transitions. [2020-09-04 13:20:11,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-09-04 13:20:11,531 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:11,531 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 16, 16, 13, 13, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 5, 5, 4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:11,744 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:11,745 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:11,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:11,747 INFO L82 PathProgramCache]: Analyzing trace with hash 466415905, now seen corresponding path program 1 times [2020-09-04 13:20:11,747 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:11,748 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862065415] [2020-09-04 13:20:11,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:11,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:11,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:11,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:11,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:11,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:11,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:11,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:12,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:12,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-04 13:20:12,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:12,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:12,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-04 13:20:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:12,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:12,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:12,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:12,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,477 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 165 proven. 262 refuted. 0 times theorem prover too weak. 977 trivial. 0 not checked. [2020-09-04 13:20:12,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862065415] [2020-09-04 13:20:12,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089280021] [2020-09-04 13:20:12,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:12,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:12,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 514 conjuncts, 16 conjunts are in the unsatisfiable core [2020-09-04 13:20:12,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:12,839 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 77 proven. 418 refuted. 0 times theorem prover too weak. 909 trivial. 0 not checked. [2020-09-04 13:20:12,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:12,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 18 [2020-09-04 13:20:12,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504433924] [2020-09-04 13:20:12,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-04 13:20:12,841 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:12,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-04 13:20:12,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-09-04 13:20:12,841 INFO L87 Difference]: Start difference. First operand 117 states and 172 transitions. Second operand 18 states. [2020-09-04 13:20:13,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:13,838 INFO L93 Difference]: Finished difference Result 263 states and 450 transitions. [2020-09-04 13:20:13,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-09-04 13:20:13,839 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 231 [2020-09-04 13:20:13,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:13,847 INFO L225 Difference]: With dead ends: 263 [2020-09-04 13:20:13,847 INFO L226 Difference]: Without dead ends: 158 [2020-09-04 13:20:13,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=1111, Unknown=0, NotChecked=0, Total=1332 [2020-09-04 13:20:13,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-09-04 13:20:13,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 148. [2020-09-04 13:20:13,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-04 13:20:13,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 227 transitions. [2020-09-04 13:20:13,895 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 227 transitions. Word has length 231 [2020-09-04 13:20:13,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:13,897 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 227 transitions. [2020-09-04 13:20:13,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-04 13:20:13,899 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 227 transitions. [2020-09-04 13:20:13,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2020-09-04 13:20:13,912 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:13,913 INFO L422 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 22, 22, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 9, 8, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:14,127 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-09-04 13:20:14,128 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:14,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:14,129 INFO L82 PathProgramCache]: Analyzing trace with hash -2077138508, now seen corresponding path program 2 times [2020-09-04 13:20:14,130 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:14,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099052558] [2020-09-04 13:20:14,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:14,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:14,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:14,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,841 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:14,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:14,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:14,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-09-04 13:20:14,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:14,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:14,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:14,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:14,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:14,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-09-04 13:20:15,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,035 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:15,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:15,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:15,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 13:20:15,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:15,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:15,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:15,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:15,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:15,630 INFO L134 CoverageAnalysis]: Checked inductivity of 4054 backedges. 247 proven. 601 refuted. 0 times theorem prover too weak. 3206 trivial. 0 not checked. [2020-09-04 13:20:15,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099052558] [2020-09-04 13:20:15,631 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340579414] [2020-09-04 13:20:15,632 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:15,783 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:20:15,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:20:15,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 14 conjunts are in the unsatisfiable core [2020-09-04 13:20:15,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:16,129 INFO L134 CoverageAnalysis]: Checked inductivity of 4054 backedges. 197 proven. 602 refuted. 0 times theorem prover too weak. 3255 trivial. 0 not checked. [2020-09-04 13:20:16,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:16,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2020-09-04 13:20:16,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417404622] [2020-09-04 13:20:16,134 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-09-04 13:20:16,134 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:16,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-09-04 13:20:16,135 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=231, Unknown=0, NotChecked=0, Total=272 [2020-09-04 13:20:16,135 INFO L87 Difference]: Start difference. First operand 148 states and 227 transitions. Second operand 17 states. [2020-09-04 13:20:16,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:16,881 INFO L93 Difference]: Finished difference Result 326 states and 537 transitions. [2020-09-04 13:20:16,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-09-04 13:20:16,882 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 381 [2020-09-04 13:20:16,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:16,888 INFO L225 Difference]: With dead ends: 326 [2020-09-04 13:20:16,888 INFO L226 Difference]: Without dead ends: 191 [2020-09-04 13:20:16,891 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 520 GetRequests, 490 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=162, Invalid=830, Unknown=0, NotChecked=0, Total=992 [2020-09-04 13:20:16,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2020-09-04 13:20:16,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 148. [2020-09-04 13:20:16,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 148 states. [2020-09-04 13:20:16,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 218 transitions. [2020-09-04 13:20:16,911 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 218 transitions. Word has length 381 [2020-09-04 13:20:16,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:16,913 INFO L479 AbstractCegarLoop]: Abstraction has 148 states and 218 transitions. [2020-09-04 13:20:16,913 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-09-04 13:20:16,913 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 218 transitions. [2020-09-04 13:20:16,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 573 [2020-09-04 13:20:16,928 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:16,928 INFO L422 BasicCegarLoop]: trace histogram [45, 45, 38, 38, 35, 32, 22, 22, 22, 22, 22, 22, 22, 19, 19, 19, 19, 19, 19, 19, 16, 10, 10, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:17,143 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:17,145 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:17,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:17,146 INFO L82 PathProgramCache]: Analyzing trace with hash -733740130, now seen corresponding path program 3 times [2020-09-04 13:20:17,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:17,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807727238] [2020-09-04 13:20:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:17,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:17,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:17,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:17,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:17,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:17,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:17,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:17,816 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:17,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:17,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:17,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:17,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:17,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:18,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:18,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:18,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-04 13:20:18,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:18,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-09-04 13:20:18,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:18,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:18,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:18,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,716 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:18,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:18,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2020-09-04 13:20:18,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:18,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:18,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:18,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:18,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:18,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:19,184 INFO L134 CoverageAnalysis]: Checked inductivity of 9471 backedges. 548 proven. 1546 refuted. 0 times theorem prover too weak. 7377 trivial. 0 not checked. [2020-09-04 13:20:19,184 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807727238] [2020-09-04 13:20:19,185 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451528746] [2020-09-04 13:20:19,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:19,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2020-09-04 13:20:19,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:20:19,326 INFO L263 TraceCheckSpWp]: Trace formula consists of 667 conjuncts, 14 conjunts are in the unsatisfiable core [2020-09-04 13:20:19,336 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:19,724 INFO L134 CoverageAnalysis]: Checked inductivity of 9471 backedges. 3006 proven. 157 refuted. 0 times theorem prover too weak. 6308 trivial. 0 not checked. [2020-09-04 13:20:19,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:19,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 13] total 25 [2020-09-04 13:20:19,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277342762] [2020-09-04 13:20:19,727 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-09-04 13:20:19,727 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:19,727 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-09-04 13:20:19,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=531, Unknown=0, NotChecked=0, Total=600 [2020-09-04 13:20:19,728 INFO L87 Difference]: Start difference. First operand 148 states and 218 transitions. Second operand 25 states. [2020-09-04 13:20:21,758 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:21,759 INFO L93 Difference]: Finished difference Result 356 states and 583 transitions. [2020-09-04 13:20:21,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2020-09-04 13:20:21,760 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 572 [2020-09-04 13:20:21,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:21,763 INFO L225 Difference]: With dead ends: 356 [2020-09-04 13:20:21,763 INFO L226 Difference]: Without dead ends: 213 [2020-09-04 13:20:21,766 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 732 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 840 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=483, Invalid=3177, Unknown=0, NotChecked=0, Total=3660 [2020-09-04 13:20:21,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2020-09-04 13:20:21,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 162. [2020-09-04 13:20:21,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 162 states. [2020-09-04 13:20:21,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 223 transitions. [2020-09-04 13:20:21,780 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 223 transitions. Word has length 572 [2020-09-04 13:20:21,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:21,781 INFO L479 AbstractCegarLoop]: Abstraction has 162 states and 223 transitions. [2020-09-04 13:20:21,781 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-09-04 13:20:21,781 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 223 transitions. [2020-09-04 13:20:21,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-09-04 13:20:21,794 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:21,794 INFO L422 BasicCegarLoop]: trace histogram [39, 39, 38, 38, 31, 31, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 12, 12, 8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:22,007 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:22,008 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:22,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:22,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1759823621, now seen corresponding path program 4 times [2020-09-04 13:20:22,009 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:22,010 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710285061] [2020-09-04 13:20:22,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:22,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:22,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:22,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:22,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:22,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:22,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:22,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:22,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:22,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:22,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:22,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:22,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:23,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:23,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:23,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:23,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:23,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:23,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:23,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:23,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:23,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:23,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:23,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:23,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:23,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:23,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-09-04 13:20:24,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:24,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:24,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:24,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:24,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:24,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:24,904 INFO L134 CoverageAnalysis]: Checked inductivity of 8074 backedges. 704 proven. 1703 refuted. 0 times theorem prover too weak. 5667 trivial. 0 not checked. [2020-09-04 13:20:24,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710285061] [2020-09-04 13:20:24,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1447823760] [2020-09-04 13:20:24,905 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:25,060 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2020-09-04 13:20:25,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:20:25,064 INFO L263 TraceCheckSpWp]: Trace formula consists of 947 conjuncts, 18 conjunts are in the unsatisfiable core [2020-09-04 13:20:25,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 8074 backedges. 760 proven. 830 refuted. 0 times theorem prover too weak. 6484 trivial. 0 not checked. [2020-09-04 13:20:25,393 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:25,393 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 13] total 22 [2020-09-04 13:20:25,393 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797759850] [2020-09-04 13:20:25,394 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-04 13:20:25,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:25,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-04 13:20:25,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=401, Unknown=0, NotChecked=0, Total=462 [2020-09-04 13:20:25,396 INFO L87 Difference]: Start difference. First operand 162 states and 223 transitions. Second operand 22 states. [2020-09-04 13:20:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:27,258 INFO L93 Difference]: Finished difference Result 416 states and 692 transitions. [2020-09-04 13:20:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-09-04 13:20:27,259 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 531 [2020-09-04 13:20:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:27,267 INFO L225 Difference]: With dead ends: 416 [2020-09-04 13:20:27,267 INFO L226 Difference]: Without dead ends: 233 [2020-09-04 13:20:27,271 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 734 GetRequests, 684 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 644 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=354, Invalid=2298, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 13:20:27,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2020-09-04 13:20:27,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 194. [2020-09-04 13:20:27,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-09-04 13:20:27,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 270 transitions. [2020-09-04 13:20:27,297 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 270 transitions. Word has length 531 [2020-09-04 13:20:27,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:27,298 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 270 transitions. [2020-09-04 13:20:27,298 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-04 13:20:27,298 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 270 transitions. [2020-09-04 13:20:27,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2020-09-04 13:20:27,308 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:27,308 INFO L422 BasicCegarLoop]: trace histogram [56, 56, 53, 53, 44, 44, 28, 28, 28, 28, 28, 28, 28, 26, 26, 26, 26, 26, 26, 26, 18, 16, 12, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:27,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-09-04 13:20:27,522 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:27,523 INFO L82 PathProgramCache]: Analyzing trace with hash -368989825, now seen corresponding path program 5 times [2020-09-04 13:20:27,523 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:27,524 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607512733] [2020-09-04 13:20:27,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:27,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:28,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:28,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:28,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:28,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:28,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:28,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:28,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:28,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:28,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:28,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:28,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:28,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:28,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:28,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:29,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:29,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-09-04 13:20:29,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:29,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:29,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:29,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:29,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:29,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:29,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:29,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:29,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:29,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:30,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:30,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:30,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:30,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:30,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,333 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:30,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:30,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-09-04 13:20:30,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:30,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:30,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:30,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,570 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:30,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:30,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:30,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:31,370 INFO L134 CoverageAnalysis]: Checked inductivity of 16376 backedges. 1997 proven. 3118 refuted. 0 times theorem prover too weak. 11261 trivial. 0 not checked. [2020-09-04 13:20:31,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607512733] [2020-09-04 13:20:31,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717321492] [2020-09-04 13:20:31,371 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:31,648 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 36 check-sat command(s) [2020-09-04 13:20:31,648 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:20:31,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 1107 conjuncts, 24 conjunts are in the unsatisfiable core [2020-09-04 13:20:31,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:32,125 INFO L134 CoverageAnalysis]: Checked inductivity of 16376 backedges. 5995 proven. 795 refuted. 0 times theorem prover too weak. 9586 trivial. 0 not checked. [2020-09-04 13:20:32,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:32,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 18] total 32 [2020-09-04 13:20:32,126 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699125435] [2020-09-04 13:20:32,127 INFO L459 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-09-04 13:20:32,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:32,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-09-04 13:20:32,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=878, Unknown=0, NotChecked=0, Total=992 [2020-09-04 13:20:32,129 INFO L87 Difference]: Start difference. First operand 194 states and 270 transitions. Second operand 32 states. [2020-09-04 13:20:34,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:34,409 INFO L93 Difference]: Finished difference Result 409 states and 600 transitions. [2020-09-04 13:20:34,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-09-04 13:20:34,410 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 749 [2020-09-04 13:20:34,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:34,413 INFO L225 Difference]: With dead ends: 409 [2020-09-04 13:20:34,413 INFO L226 Difference]: Without dead ends: 228 [2020-09-04 13:20:34,418 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1041 GetRequests, 965 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1726 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=751, Invalid=5255, Unknown=0, NotChecked=0, Total=6006 [2020-09-04 13:20:34,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-04 13:20:34,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 203. [2020-09-04 13:20:34,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-09-04 13:20:34,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 259 transitions. [2020-09-04 13:20:34,433 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 259 transitions. Word has length 749 [2020-09-04 13:20:34,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:34,434 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 259 transitions. [2020-09-04 13:20:34,434 INFO L480 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-09-04 13:20:34,434 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 259 transitions. [2020-09-04 13:20:34,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 396 [2020-09-04 13:20:34,438 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:34,438 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 28, 28, 23, 23, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 9, 9, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:34,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-09-04 13:20:34,652 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:34,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:34,653 INFO L82 PathProgramCache]: Analyzing trace with hash 634662915, now seen corresponding path program 6 times [2020-09-04 13:20:34,653 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:34,653 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [119439310] [2020-09-04 13:20:34,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:34,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:34,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:34,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:34,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:34,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:35,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:35,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:35,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,490 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:35,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:35,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:35,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,618 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-09-04 13:20:35,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,792 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:35,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:35,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:35,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:35,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:35,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:35,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:36,096 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 694 proven. 802 refuted. 0 times theorem prover too weak. 2874 trivial. 0 not checked. [2020-09-04 13:20:36,097 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [119439310] [2020-09-04 13:20:36,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536834604] [2020-09-04 13:20:36,098 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:36,212 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 13 check-sat command(s) [2020-09-04 13:20:36,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:20:36,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 488 conjuncts, 12 conjunts are in the unsatisfiable core [2020-09-04 13:20:36,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:36,436 INFO L134 CoverageAnalysis]: Checked inductivity of 4370 backedges. 586 proven. 92 refuted. 0 times theorem prover too weak. 3692 trivial. 0 not checked. [2020-09-04 13:20:36,436 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:36,437 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 10] total 24 [2020-09-04 13:20:36,437 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745543419] [2020-09-04 13:20:36,438 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-04 13:20:36,438 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:36,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-04 13:20:36,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2020-09-04 13:20:36,439 INFO L87 Difference]: Start difference. First operand 203 states and 259 transitions. Second operand 24 states. [2020-09-04 13:20:37,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:37,947 INFO L93 Difference]: Finished difference Result 449 states and 609 transitions. [2020-09-04 13:20:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2020-09-04 13:20:37,948 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 395 [2020-09-04 13:20:37,948 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:37,951 INFO L225 Difference]: With dead ends: 449 [2020-09-04 13:20:37,952 INFO L226 Difference]: Without dead ends: 259 [2020-09-04 13:20:37,954 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 505 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 669 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=367, Invalid=2495, Unknown=0, NotChecked=0, Total=2862 [2020-09-04 13:20:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-09-04 13:20:37,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 184. [2020-09-04 13:20:37,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184 states. [2020-09-04 13:20:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 234 transitions. [2020-09-04 13:20:37,969 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 234 transitions. Word has length 395 [2020-09-04 13:20:37,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:37,970 INFO L479 AbstractCegarLoop]: Abstraction has 184 states and 234 transitions. [2020-09-04 13:20:37,970 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-04 13:20:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 234 transitions. [2020-09-04 13:20:37,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-09-04 13:20:37,974 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:37,974 INFO L422 BasicCegarLoop]: trace histogram [34, 34, 33, 33, 27, 27, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 11, 10, 7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:38,191 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-09-04 13:20:38,192 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:38,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:38,192 INFO L82 PathProgramCache]: Analyzing trace with hash 1326629730, now seen corresponding path program 7 times [2020-09-04 13:20:38,193 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:38,193 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118053339] [2020-09-04 13:20:38,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:38,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:38,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:38,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:38,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:38,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,561 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:39,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:39,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:39,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:39,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:39,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,038 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:40,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:40,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:40,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:40,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:40,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:40,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:40,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:40,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:40,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:40,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:40,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:40,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2020-09-04 13:20:40,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:41,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:41,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:41,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:41,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:41,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:41,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:41,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:41,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:41,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:41,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:41,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:41,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,739 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-09-04 13:20:41,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118053339] [2020-09-04 13:20:41,740 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [964536343] [2020-09-04 13:20:41,740 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:41,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:41,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 1029 conjuncts, 271 conjunts are in the unsatisfiable core [2020-09-04 13:20:41,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:44,402 INFO L134 CoverageAnalysis]: Checked inductivity of 6082 backedges. 0 proven. 2033 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-09-04 13:20:44,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:44,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40] total 52 [2020-09-04 13:20:44,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694035924] [2020-09-04 13:20:44,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 52 states [2020-09-04 13:20:44,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:44,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2020-09-04 13:20:44,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 13:20:44,406 INFO L87 Difference]: Start difference. First operand 184 states and 234 transitions. Second operand 52 states. [2020-09-04 13:20:45,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:45,563 INFO L93 Difference]: Finished difference Result 201 states and 259 transitions. [2020-09-04 13:20:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2020-09-04 13:20:45,564 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 463 [2020-09-04 13:20:45,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:45,567 INFO L225 Difference]: With dead ends: 201 [2020-09-04 13:20:45,567 INFO L226 Difference]: Without dead ends: 197 [2020-09-04 13:20:45,569 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 735 GetRequests, 651 SyntacticMatches, 34 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 273 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=125, Invalid=2527, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 13:20:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-09-04 13:20:45,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 194. [2020-09-04 13:20:45,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2020-09-04 13:20:45,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 246 transitions. [2020-09-04 13:20:45,584 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 246 transitions. Word has length 463 [2020-09-04 13:20:45,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:45,584 INFO L479 AbstractCegarLoop]: Abstraction has 194 states and 246 transitions. [2020-09-04 13:20:45,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 52 states. [2020-09-04 13:20:45,585 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 246 transitions. [2020-09-04 13:20:45,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2020-09-04 13:20:45,590 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:20:45,590 INFO L422 BasicCegarLoop]: trace histogram [40, 40, 37, 37, 31, 31, 20, 20, 20, 20, 20, 20, 20, 18, 18, 18, 18, 18, 18, 18, 13, 11, 9, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:20:45,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:45,805 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:20:45,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:20:45,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1112347357, now seen corresponding path program 8 times [2020-09-04 13:20:45,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:20:45,807 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085925235] [2020-09-04 13:20:45,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:20:45,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:20:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-04 13:20:46,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:46,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:46,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:46,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:46,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:46,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:46,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:46,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:46,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:46,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2020-09-04 13:20:46,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:46,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:46,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:47,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:47,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2020-09-04 13:20:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:47,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:47,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:47,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-09-04 13:20:47,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,341 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:47,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:47,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-04 13:20:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:47,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2020-09-04 13:20:47,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-09-04 13:20:47,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-04 13:20:47,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 13:20:47,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-04 13:20:47,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:20:47,788 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 547 proven. 1475 refuted. 0 times theorem prover too weak. 6064 trivial. 0 not checked. [2020-09-04 13:20:47,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085925235] [2020-09-04 13:20:47,789 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [280632725] [2020-09-04 13:20:47,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:20:48,002 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2020-09-04 13:20:48,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-09-04 13:20:48,006 INFO L263 TraceCheckSpWp]: Trace formula consists of 1180 conjuncts, 20 conjunts are in the unsatisfiable core [2020-09-04 13:20:48,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:20:48,255 INFO L134 CoverageAnalysis]: Checked inductivity of 8086 backedges. 317 proven. 1385 refuted. 0 times theorem prover too weak. 6384 trivial. 0 not checked. [2020-09-04 13:20:48,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:20:48,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 22 [2020-09-04 13:20:48,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888988243] [2020-09-04 13:20:48,257 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-04 13:20:48,257 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:20:48,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-04 13:20:48,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-09-04 13:20:48,258 INFO L87 Difference]: Start difference. First operand 194 states and 246 transitions. Second operand 22 states. [2020-09-04 13:20:49,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:20:49,500 INFO L93 Difference]: Finished difference Result 391 states and 507 transitions. [2020-09-04 13:20:49,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-04 13:20:49,501 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 531 [2020-09-04 13:20:49,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:20:49,502 INFO L225 Difference]: With dead ends: 391 [2020-09-04 13:20:49,503 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:20:49,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 723 GetRequests, 683 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=240, Invalid=1482, Unknown=0, NotChecked=0, Total=1722 [2020-09-04 13:20:49,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:20:49,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:20:49,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:20:49,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:20:49,507 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 531 [2020-09-04 13:20:49,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:20:49,507 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:20:49,507 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-04 13:20:49,507 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:20:49,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:20:49,718 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-09-04 13:20:49,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:20:55,429 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 7 [2020-09-04 13:20:55,611 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 1 [2020-09-04 13:20:55,905 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 1 [2020-09-04 13:20:57,453 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 178 DAG size of output: 49 [2020-09-04 13:20:57,785 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 7 [2020-09-04 13:20:59,048 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 167 DAG size of output: 48 [2020-09-04 13:20:59,055 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 13:20:59,056 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:20:59,056 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:20:59,056 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 13:20:59,056 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:20:59,056 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:20:59,056 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 39) no Hoare annotation was computed. [2020-09-04 13:20:59,056 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 35 42) the Hoare annotation is: true [2020-09-04 13:20:59,057 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 35 42) no Hoare annotation was computed. [2020-09-04 13:20:59,057 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 35 42) no Hoare annotation was computed. [2020-09-04 13:20:59,057 INFO L268 CegarLoopResult]: For program point L39(line 39) no Hoare annotation was computed. [2020-09-04 13:20:59,057 INFO L268 CegarLoopResult]: For program point L38(lines 38 40) no Hoare annotation was computed. [2020-09-04 13:20:59,057 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 8 main_~x~0) (<= main_~x~0 8)) [2020-09-04 13:20:59,057 INFO L268 CegarLoopResult]: For program point L37-1(line 37) no Hoare annotation was computed. [2020-09-04 13:20:59,057 INFO L268 CegarLoopResult]: For program point L38-2(lines 38 40) no Hoare annotation was computed. [2020-09-04 13:20:59,058 INFO L271 CegarLoopResult]: At program point fibo2ENTRY(lines 17 25) the Hoare annotation is: true [2020-09-04 13:20:59,058 INFO L264 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= fibo2_~n |fibo2_#in~n|) (not (<= |fibo2_#in~n| 1))) [2020-09-04 13:20:59,058 INFO L268 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-09-04 13:20:59,058 INFO L264 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: (let ((.cse6 (<= |fibo2_#in~n| 6)) (.cse9 (<= 6 |fibo2_#in~n|)) (.cse2 (<= |fibo2_#in~n| 2)) (.cse1 (<= |fibo2_#in~n| 3)) (.cse10 (<= |fibo2_#t~ret2| 1)) (.cse4 (= fibo2_~n |fibo2_#in~n|)) (.cse11 (<= 1 |fibo2_#t~ret2|))) (let ((.cse0 (and .cse1 (<= 3 fibo2_~n) .cse10 .cse4 .cse11)) (.cse3 (and .cse10 .cse11 .cse2)) (.cse8 (and (<= 2 |fibo2_#t~ret2|) (<= |fibo2_#in~n| 4) (<= |fibo2_#t~ret2| 2))) (.cse5 (and .cse6 (<= 5 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 5) .cse9)) (.cse7 (<= |fibo2_#in~n| 5))) (and (or .cse0 (not .cse1) .cse2) (or .cse3 (not .cse2)) .cse4 (or .cse5 (not .cse6) .cse7) (or (not (<= 4 |fibo2_#in~n|)) .cse8 (<= 5 fibo2_~n)) (or .cse0 .cse3 .cse8 (and (<= 8 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 8) .cse9) .cse5 (<= 8 |fibo2_#in~n|) (and (<= 3 |fibo2_#t~ret2|) (<= |fibo2_#t~ret2| 3) .cse7)) (not (<= |fibo2_#in~n| 1))))) [2020-09-04 13:20:59,058 INFO L268 CegarLoopResult]: For program point L20(lines 20 24) no Hoare annotation was computed. [2020-09-04 13:20:59,059 INFO L268 CegarLoopResult]: For program point L23-3(line 23) no Hoare annotation was computed. [2020-09-04 13:20:59,059 INFO L268 CegarLoopResult]: For program point L18(lines 18 24) no Hoare annotation was computed. [2020-09-04 13:20:59,059 INFO L268 CegarLoopResult]: For program point fibo2FINAL(lines 17 25) no Hoare annotation was computed. [2020-09-04 13:20:59,059 INFO L268 CegarLoopResult]: For program point fibo2EXIT(lines 17 25) no Hoare annotation was computed. [2020-09-04 13:20:59,059 INFO L271 CegarLoopResult]: At program point fibo1ENTRY(lines 7 15) the Hoare annotation is: true [2020-09-04 13:20:59,059 INFO L264 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (not (<= |fibo1_#in~n| 1)) (= fibo1_~n |fibo1_#in~n|)) [2020-09-04 13:20:59,060 INFO L268 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-09-04 13:20:59,060 INFO L264 CegarLoopResult]: At program point L13-2(line 13) the Hoare annotation is: (let ((.cse5 (<= |fibo1_#in~n| 3)) (.cse2 (<= |fibo1_#t~ret0| 1)) (.cse4 (<= 1 |fibo1_#t~ret0|)) (.cse6 (= fibo1_~n |fibo1_#in~n|)) (.cse0 (<= 3 |fibo1_#in~n|))) (let ((.cse3 (<= |fibo1_#in~n| 2)) (.cse1 (and .cse5 .cse2 .cse4 .cse6 .cse0))) (and (or (and (<= 2 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 2) (<= |fibo1_#in~n| 4) .cse0) (<= 7 |fibo1_#in~n|) (and (<= 5 |fibo1_#t~ret0|) (<= |fibo1_#t~ret0| 5) (<= 6 |fibo1_#in~n|)) .cse1 (and (<= |fibo1_#in~n| 5) (<= 3 |fibo1_#t~ret0|) (<= 5 |fibo1_#in~n|) (<= |fibo1_#t~ret0| 3)) (and .cse2 .cse3 .cse4)) (or (and .cse3 (<= 2 |fibo1_#in~n|)) (not .cse5) .cse1) (or (and .cse6 (<= |fibo1_#in~n| 7)) (and (<= 13 |fibo1_#t~ret0|) .cse6 (<= |fibo1_#t~ret0| 13)) (and .cse6 (<= 9 |fibo1_#in~n|)))))) [2020-09-04 13:20:59,060 INFO L268 CegarLoopResult]: For program point fibo1FINAL(lines 7 15) no Hoare annotation was computed. [2020-09-04 13:20:59,060 INFO L268 CegarLoopResult]: For program point L10(lines 10 14) no Hoare annotation was computed. [2020-09-04 13:20:59,060 INFO L268 CegarLoopResult]: For program point L13-3(line 13) no Hoare annotation was computed. [2020-09-04 13:20:59,060 INFO L268 CegarLoopResult]: For program point L8(lines 8 14) no Hoare annotation was computed. [2020-09-04 13:20:59,061 INFO L268 CegarLoopResult]: For program point fibo1EXIT(lines 7 15) no Hoare annotation was computed. [2020-09-04 13:20:59,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:20:59 BoogieIcfgContainer [2020-09-04 13:20:59,069 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:20:59,071 INFO L168 Benchmark]: Toolchain (without parser) took 57584.53 ms. Allocated memory was 144.7 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 101.4 MB in the beginning and 1.1 GB in the end (delta: -950.8 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-09-04 13:20:59,072 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 144.7 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 13:20:59,072 INFO L168 Benchmark]: CACSL2BoogieTranslator took 330.25 ms. Allocated memory is still 144.7 MB. Free memory was 101.0 MB in the beginning and 91.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:20:59,073 INFO L168 Benchmark]: Boogie Preprocessor took 147.39 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 91.6 MB in the beginning and 181.3 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:20:59,074 INFO L168 Benchmark]: RCFGBuilder took 335.40 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 167.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-09-04 13:20:59,074 INFO L168 Benchmark]: TraceAbstraction took 56764.50 ms. Allocated memory was 202.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 167.0 MB in the beginning and 1.1 GB in the end (delta: -885.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. [2020-09-04 13:20:59,077 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 144.7 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 330.25 ms. Allocated memory is still 144.7 MB. Free memory was 101.0 MB in the beginning and 91.6 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 147.39 ms. Allocated memory was 144.7 MB in the beginning and 202.4 MB in the end (delta: 57.7 MB). Free memory was 91.6 MB in the beginning and 181.3 MB in the end (delta: -89.7 MB). Peak memory consumption was 10.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 335.40 ms. Allocated memory is still 202.4 MB. Free memory was 181.3 MB in the beginning and 167.0 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 56764.50 ms. Allocated memory was 202.4 MB in the beginning and 1.4 GB in the end (delta: 1.2 GB). Free memory was 167.0 MB in the beginning and 1.1 GB in the end (delta: -885.2 MB). Peak memory consumption was 1.3 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 39]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 33 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 47.2s, OverallIterations: 17, TraceHistogramMax: 56, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 655 SDtfs, 1213 SDslu, 7612 SDs, 0 SdLazy, 10029 SolverSat, 1296 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6096 GetRequests, 5523 SyntacticMatches, 34 SemanticMatches, 539 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5226 ImplicationChecksByTransitivity, 11.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=203occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 17 MinimizatonAttempts, 355 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 11 LocationsWithAnnotation, 1040 PreInvPairs, 1843 NumberOfFragments, 308 HoareAnnotationTreeSize, 1040 FomulaSimplifications, 58596 FormulaSimplificationTreeSizeReduction, 5.2s HoareSimplificationTime, 11 FomulaSimplificationsInter, 75324 FormulaSimplificationTreeSizeReductionInter, 4.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 23.6s InterpolantComputationTime, 8515 NumberOfCodeBlocks, 7739 NumberOfCodeBlocksAsserted, 98 NumberOfCheckSat, 8483 ConstructedInterpolants, 0 QuantifiedInterpolants, 6575819 SizeOfPredicates, 92 NumberOfNonLiveVariables, 7655 ConjunctsInSsa, 453 ConjunctsInUnsatCore, 32 InterpolantComputations, 2 PerfectInterpolantSequences, 98729/117000 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...