/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration false -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 14:55:46,726 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 14:55:46,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 14:55:46,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 14:55:46,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 14:55:46,788 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 14:55:46,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 14:55:46,795 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 14:55:46,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 14:55:46,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 14:55:46,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 14:55:46,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 14:55:46,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 14:55:46,807 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 14:55:46,810 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 14:55:46,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 14:55:46,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 14:55:46,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 14:55:46,817 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 14:55:46,828 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 14:55:46,830 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 14:55:46,832 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 14:55:46,833 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 14:55:46,834 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 14:55:46,848 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 14:55:46,848 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 14:55:46,850 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 14:55:46,851 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 14:55:46,851 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 14:55:46,858 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-24 14:55:46,870 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 14:55:46,872 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 14:55:46,873 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 14:55:46,875 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 [2020-09-24 14:55:46,926 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 14:55:46,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 14:55:46,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 14:55:46,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 14:55:46,930 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 14:55:46,930 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 14:55:46,930 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 14:55:46,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 14:55:46,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 14:55:46,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 14:55:46,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 14:55:46,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 14:55:46,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 14:55:46,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 14:55:46,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 14:55:46,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 14:55:46,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 14:55:46,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 14:55:46,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 14:55:46,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 14:55:46,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 14:55:46,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 14:55:46,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 14:55:46,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 14:55:46,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 14:55:46,936 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 14:55:46,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 14:55:46,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 14:55:46,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 14:55:46,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> false [2020-09-24 14:55:47,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 14:55:47,443 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 14:55:47,447 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 14:55:47,449 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 14:55:47,450 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 14:55:47,451 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c [2020-09-24 14:55:47,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9027096f/08be941aa8d84d6d8569708edd2ba4a4/FLAG00d3f32ca [2020-09-24 14:55:48,153 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 14:55:48,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/recursive-simple/fibo_2calls_20-2.c [2020-09-24 14:55:48,163 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9027096f/08be941aa8d84d6d8569708edd2ba4a4/FLAG00d3f32ca [2020-09-24 14:55:48,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e9027096f/08be941aa8d84d6d8569708edd2ba4a4 [2020-09-24 14:55:48,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 14:55:48,489 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 14:55:48,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 14:55:48,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 14:55:48,496 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 14:55:48,497 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,502 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@68e64c0b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48, skipping insertion in model container [2020-09-24 14:55:48,502 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,512 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 14:55:48,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 14:55:48,752 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:55:48,758 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 14:55:48,781 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 14:55:48,801 INFO L208 MainTranslator]: Completed translation [2020-09-24 14:55:48,801 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48 WrapperNode [2020-09-24 14:55:48,802 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 14:55:48,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 14:55:48,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 14:55:48,803 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 14:55:48,822 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,928 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,934 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (1/1) ... [2020-09-24 14:55:48,945 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 14:55:48,946 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 14:55:48,946 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 14:55:48,946 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 14:55:48,947 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (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 [2020-09-24 14:55:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 14:55:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 14:55:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo1 [2020-09-24 14:55:49,028 INFO L138 BoogieDeclarations]: Found implementation of procedure fibo2 [2020-09-24 14:55:49,029 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 14:55:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 14:55:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 14:55:49,029 INFO L130 BoogieDeclarations]: Found specification of procedure fibo1 [2020-09-24 14:55:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure fibo2 [2020-09-24 14:55:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 14:55:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 14:55:49,030 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 14:55:49,322 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 14:55:49,323 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 14:55:49,339 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:55:49 BoogieIcfgContainer [2020-09-24 14:55:49,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 14:55:49,343 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 14:55:49,343 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 14:55:49,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 14:55:49,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 02:55:48" (1/3) ... [2020-09-24 14:55:49,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:55:49, skipping insertion in model container [2020-09-24 14:55:49,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 02:55:48" (2/3) ... [2020-09-24 14:55:49,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@566da70a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 02:55:49, skipping insertion in model container [2020-09-24 14:55:49,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 02:55:49" (3/3) ... [2020-09-24 14:55:49,364 INFO L109 eAbstractionObserver]: Analyzing ICFG fibo_2calls_20-2.c [2020-09-24 14:55:49,393 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 14:55:49,411 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 14:55:49,445 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 14:55:49,479 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 14:55:49,480 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 14:55:49,480 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 14:55:49,480 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 14:55:49,480 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 14:55:49,481 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 14:55:49,481 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 14:55:49,481 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 14:55:49,506 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states. [2020-09-24 14:55:49,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-09-24 14:55:49,515 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:49,516 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:49,517 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:49,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:49,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1089710179, now seen corresponding path program 1 times [2020-09-24 14:55:49,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:49,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1160288658] [2020-09-24 14:55:49,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:49,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:49,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:49,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:49,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:49,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:49,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:55:49,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1160288658] [2020-09-24 14:55:49,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:55:49,811 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 14:55:49,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805728763] [2020-09-24 14:55:49,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 14:55:49,822 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:49,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 14:55:49,841 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 14:55:49,843 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 5 states. [2020-09-24 14:55:49,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:49,972 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2020-09-24 14:55:49,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 14:55:49,974 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-09-24 14:55:49,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:49,987 INFO L225 Difference]: With dead ends: 58 [2020-09-24 14:55:49,987 INFO L226 Difference]: Without dead ends: 42 [2020-09-24 14:55:49,992 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 [2020-09-24 14:55:50,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-09-24 14:55:50,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-09-24 14:55:50,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 14:55:50,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 14:55:50,051 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 16 [2020-09-24 14:55:50,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:50,052 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 14:55:50,052 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 14:55:50,052 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 14:55:50,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-09-24 14:55:50,055 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:50,056 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:50,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 14:55:50,056 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:50,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:50,057 INFO L82 PathProgramCache]: Analyzing trace with hash -653728005, now seen corresponding path program 1 times [2020-09-24 14:55:50,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:50,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140585564] [2020-09-24 14:55:50,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:50,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:50,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 14:55:50,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140585564] [2020-09-24 14:55:50,138 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 14:55:50,138 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-24 14:55:50,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [292670526] [2020-09-24 14:55:50,141 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-24 14:55:50,141 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:50,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-24 14:55:50,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-24 14:55:50,142 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 5 states. [2020-09-24 14:55:50,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:50,217 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2020-09-24 14:55:50,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 14:55:50,219 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2020-09-24 14:55:50,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:50,221 INFO L225 Difference]: With dead ends: 50 [2020-09-24 14:55:50,221 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 14:55:50,223 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 [2020-09-24 14:55:50,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 14:55:50,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 42. [2020-09-24 14:55:50,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-09-24 14:55:50,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2020-09-24 14:55:50,235 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 17 [2020-09-24 14:55:50,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:50,236 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2020-09-24 14:55:50,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-24 14:55:50,236 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2020-09-24 14:55:50,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-09-24 14:55:50,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:50,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:50,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 14:55:50,240 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:50,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:50,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1617834856, now seen corresponding path program 1 times [2020-09-24 14:55:50,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:50,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [338055898] [2020-09-24 14:55:50,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:50,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:50,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 14:55:50,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,416 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 14:55:50,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [338055898] [2020-09-24 14:55:50,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:50,417 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 14:55:50,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069997645] [2020-09-24 14:55:50,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 14:55:50,419 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:50,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 14:55:50,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 14:55:50,419 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 7 states. [2020-09-24 14:55:50,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:50,539 INFO L93 Difference]: Finished difference Result 82 states and 102 transitions. [2020-09-24 14:55:50,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 14:55:50,540 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2020-09-24 14:55:50,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:50,542 INFO L225 Difference]: With dead ends: 82 [2020-09-24 14:55:50,542 INFO L226 Difference]: Without dead ends: 46 [2020-09-24 14:55:50,544 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-09-24 14:55:50,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-09-24 14:55:50,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 44. [2020-09-24 14:55:50,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 14:55:50,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 51 transitions. [2020-09-24 14:55:50,556 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 51 transitions. Word has length 33 [2020-09-24 14:55:50,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:50,557 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 51 transitions. [2020-09-24 14:55:50,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 14:55:50,557 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 51 transitions. [2020-09-24 14:55:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2020-09-24 14:55:50,560 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:50,560 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:50,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 14:55:50,561 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:50,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:50,561 INFO L82 PathProgramCache]: Analyzing trace with hash 887160861, now seen corresponding path program 1 times [2020-09-24 14:55:50,562 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:50,562 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1080553158] [2020-09-24 14:55:50,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:50,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:50,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:50,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:50,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-24 14:55:50,725 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1080553158] [2020-09-24 14:55:50,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:50,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-24 14:55:50,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609793271] [2020-09-24 14:55:50,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 14:55:50,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:50,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 14:55:50,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-24 14:55:50,730 INFO L87 Difference]: Start difference. First operand 44 states and 51 transitions. Second operand 7 states. [2020-09-24 14:55:50,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:50,975 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-09-24 14:55:50,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 14:55:50,977 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2020-09-24 14:55:50,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:50,983 INFO L225 Difference]: With dead ends: 74 [2020-09-24 14:55:50,983 INFO L226 Difference]: Without dead ends: 68 [2020-09-24 14:55:50,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-09-24 14:55:50,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-09-24 14:55:51,003 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 66. [2020-09-24 14:55:51,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-24 14:55:51,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 83 transitions. [2020-09-24 14:55:51,007 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 83 transitions. Word has length 34 [2020-09-24 14:55:51,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:51,007 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 83 transitions. [2020-09-24 14:55:51,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 14:55:51,008 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 83 transitions. [2020-09-24 14:55:51,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-24 14:55:51,011 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:51,011 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:51,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 14:55:51,012 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:51,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:51,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1875452576, now seen corresponding path program 1 times [2020-09-24 14:55:51,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:51,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2037186979] [2020-09-24 14:55:51,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:51,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-24 14:55:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2020-09-24 14:55:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,136 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 6 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 14:55:51,136 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2037186979] [2020-09-24 14:55:51,136 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:51,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-24 14:55:51,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260705141] [2020-09-24 14:55:51,138 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 14:55:51,138 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:51,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 14:55:51,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-24 14:55:51,139 INFO L87 Difference]: Start difference. First operand 66 states and 83 transitions. Second operand 6 states. [2020-09-24 14:55:51,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:51,217 INFO L93 Difference]: Finished difference Result 130 states and 178 transitions. [2020-09-24 14:55:51,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 14:55:51,218 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 50 [2020-09-24 14:55:51,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:51,220 INFO L225 Difference]: With dead ends: 130 [2020-09-24 14:55:51,220 INFO L226 Difference]: Without dead ends: 70 [2020-09-24 14:55:51,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-24 14:55:51,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-24 14:55:51,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2020-09-24 14:55:51,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-09-24 14:55:51,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 89 transitions. [2020-09-24 14:55:51,234 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 89 transitions. Word has length 50 [2020-09-24 14:55:51,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:51,235 INFO L479 AbstractCegarLoop]: Abstraction has 70 states and 89 transitions. [2020-09-24 14:55:51,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 14:55:51,235 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 89 transitions. [2020-09-24 14:55:51,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2020-09-24 14:55:51,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:51,238 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:51,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 14:55:51,239 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:51,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:51,239 INFO L82 PathProgramCache]: Analyzing trace with hash 104828256, now seen corresponding path program 1 times [2020-09-24 14:55:51,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:51,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [289697982] [2020-09-24 14:55:51,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:51,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:51,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:51,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:51,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-24 14:55:51,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [289697982] [2020-09-24 14:55:51,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:51,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 14:55:51,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082184810] [2020-09-24 14:55:51,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 14:55:51,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:51,392 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 14:55:51,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 14:55:51,393 INFO L87 Difference]: Start difference. First operand 70 states and 89 transitions. Second operand 8 states. [2020-09-24 14:55:51,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:51,512 INFO L93 Difference]: Finished difference Result 142 states and 197 transitions. [2020-09-24 14:55:51,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-24 14:55:51,513 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2020-09-24 14:55:51,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:51,515 INFO L225 Difference]: With dead ends: 142 [2020-09-24 14:55:51,515 INFO L226 Difference]: Without dead ends: 78 [2020-09-24 14:55:51,517 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 14:55:51,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-09-24 14:55:51,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 72. [2020-09-24 14:55:51,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-09-24 14:55:51,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 92 transitions. [2020-09-24 14:55:51,530 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 92 transitions. Word has length 51 [2020-09-24 14:55:51,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:51,531 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 92 transitions. [2020-09-24 14:55:51,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 14:55:51,531 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 92 transitions. [2020-09-24 14:55:51,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-24 14:55:51,533 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:51,534 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:51,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-24 14:55:51,534 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:51,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:51,535 INFO L82 PathProgramCache]: Analyzing trace with hash 1703786405, now seen corresponding path program 1 times [2020-09-24 14:55:51,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:51,536 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [813191222] [2020-09-24 14:55:51,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:51,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:51,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:51,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:51,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,696 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-09-24 14:55:51,697 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [813191222] [2020-09-24 14:55:51,697 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:51,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 14:55:51,698 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390861456] [2020-09-24 14:55:51,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 14:55:51,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:51,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 14:55:51,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 14:55:51,700 INFO L87 Difference]: Start difference. First operand 72 states and 92 transitions. Second operand 8 states. [2020-09-24 14:55:51,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:51,910 INFO L93 Difference]: Finished difference Result 118 states and 158 transitions. [2020-09-24 14:55:51,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-24 14:55:51,910 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2020-09-24 14:55:51,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:51,913 INFO L225 Difference]: With dead ends: 118 [2020-09-24 14:55:51,913 INFO L226 Difference]: Without dead ends: 112 [2020-09-24 14:55:51,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-09-24 14:55:51,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-09-24 14:55:51,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 106. [2020-09-24 14:55:51,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 106 states. [2020-09-24 14:55:51,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 145 transitions. [2020-09-24 14:55:51,932 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 145 transitions. Word has length 52 [2020-09-24 14:55:51,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:51,932 INFO L479 AbstractCegarLoop]: Abstraction has 106 states and 145 transitions. [2020-09-24 14:55:51,933 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 14:55:51,933 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 145 transitions. [2020-09-24 14:55:51,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-24 14:55:51,936 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:51,937 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:51,937 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-24 14:55:51,937 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:51,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:51,938 INFO L82 PathProgramCache]: Analyzing trace with hash -521446491, now seen corresponding path program 1 times [2020-09-24 14:55:51,938 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:51,938 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [181492660] [2020-09-24 14:55:51,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:51,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:51,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:51,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:51,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:51,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:52,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:52,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-24 14:55:52,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,111 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-09-24 14:55:52,112 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [181492660] [2020-09-24 14:55:52,112 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:52,113 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-24 14:55:52,113 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048347596] [2020-09-24 14:55:52,113 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 14:55:52,114 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:52,114 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 14:55:52,114 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-24 14:55:52,115 INFO L87 Difference]: Start difference. First operand 106 states and 145 transitions. Second operand 8 states. [2020-09-24 14:55:52,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:52,249 INFO L93 Difference]: Finished difference Result 227 states and 348 transitions. [2020-09-24 14:55:52,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-24 14:55:52,250 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 69 [2020-09-24 14:55:52,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:52,252 INFO L225 Difference]: With dead ends: 227 [2020-09-24 14:55:52,252 INFO L226 Difference]: Without dead ends: 127 [2020-09-24 14:55:52,254 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-24 14:55:52,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-24 14:55:52,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 115. [2020-09-24 14:55:52,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2020-09-24 14:55:52,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 161 transitions. [2020-09-24 14:55:52,272 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 161 transitions. Word has length 69 [2020-09-24 14:55:52,272 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:52,272 INFO L479 AbstractCegarLoop]: Abstraction has 115 states and 161 transitions. [2020-09-24 14:55:52,273 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 14:55:52,273 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 161 transitions. [2020-09-24 14:55:52,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2020-09-24 14:55:52,275 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:52,275 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:52,275 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-24 14:55:52,275 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:52,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:52,276 INFO L82 PathProgramCache]: Analyzing trace with hash -439633211, now seen corresponding path program 1 times [2020-09-24 14:55:52,276 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:52,277 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [291339018] [2020-09-24 14:55:52,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:52,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:52,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:52,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,461 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 23 proven. 11 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-09-24 14:55:52,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [291339018] [2020-09-24 14:55:52,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:52,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 14:55:52,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102239273] [2020-09-24 14:55:52,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 14:55:52,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:52,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 14:55:52,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 14:55:52,464 INFO L87 Difference]: Start difference. First operand 115 states and 161 transitions. Second operand 10 states. [2020-09-24 14:55:52,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:52,725 INFO L93 Difference]: Finished difference Result 257 states and 400 transitions. [2020-09-24 14:55:52,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-24 14:55:52,726 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 70 [2020-09-24 14:55:52,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:52,729 INFO L225 Difference]: With dead ends: 257 [2020-09-24 14:55:52,729 INFO L226 Difference]: Without dead ends: 151 [2020-09-24 14:55:52,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-24 14:55:52,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-09-24 14:55:52,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 133. [2020-09-24 14:55:52,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 133 states. [2020-09-24 14:55:52,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 191 transitions. [2020-09-24 14:55:52,748 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 191 transitions. Word has length 70 [2020-09-24 14:55:52,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:52,749 INFO L479 AbstractCegarLoop]: Abstraction has 133 states and 191 transitions. [2020-09-24 14:55:52,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 14:55:52,749 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 191 transitions. [2020-09-24 14:55:52,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 14:55:52,752 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:52,752 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:52,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-24 14:55:52,752 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:52,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:52,753 INFO L82 PathProgramCache]: Analyzing trace with hash 307755032, now seen corresponding path program 2 times [2020-09-24 14:55:52,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:52,753 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [457884732] [2020-09-24 14:55:52,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:52,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:52,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:52,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:52,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:52,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:52,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:52,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,030 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:53,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,036 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:53,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,070 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 36 proven. 59 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-09-24 14:55:53,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [457884732] [2020-09-24 14:55:53,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:53,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 14:55:53,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181003978] [2020-09-24 14:55:53,072 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 14:55:53,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:53,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 14:55:53,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2020-09-24 14:55:53,074 INFO L87 Difference]: Start difference. First operand 133 states and 191 transitions. Second operand 12 states. [2020-09-24 14:55:53,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:53,556 INFO L93 Difference]: Finished difference Result 265 states and 420 transitions. [2020-09-24 14:55:53,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 14:55:53,560 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 105 [2020-09-24 14:55:53,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:53,566 INFO L225 Difference]: With dead ends: 265 [2020-09-24 14:55:53,566 INFO L226 Difference]: Without dead ends: 116 [2020-09-24 14:55:53,568 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=341, Unknown=0, NotChecked=0, Total=420 [2020-09-24 14:55:53,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2020-09-24 14:55:53,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 95. [2020-09-24 14:55:53,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-09-24 14:55:53,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 117 transitions. [2020-09-24 14:55:53,580 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 117 transitions. Word has length 105 [2020-09-24 14:55:53,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:53,581 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 117 transitions. [2020-09-24 14:55:53,581 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 14:55:53,581 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 117 transitions. [2020-09-24 14:55:53,583 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-24 14:55:53,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:53,583 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 5, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:53,583 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-24 14:55:53,584 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:53,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:53,584 INFO L82 PathProgramCache]: Analyzing trace with hash 1352793328, now seen corresponding path program 2 times [2020-09-24 14:55:53,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:53,585 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1956942092] [2020-09-24 14:55:53,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:53,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:53,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:53,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:53,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:53,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:53,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:53,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:53,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:53,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,771 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2020-09-24 14:55:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,797 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:53,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:53,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:53,814 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 46 proven. 45 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2020-09-24 14:55:53,815 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1956942092] [2020-09-24 14:55:53,815 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:53,816 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 14:55:53,816 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045712130] [2020-09-24 14:55:53,816 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 14:55:53,817 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:53,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 14:55:53,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2020-09-24 14:55:53,817 INFO L87 Difference]: Start difference. First operand 95 states and 117 transitions. Second operand 10 states. [2020-09-24 14:55:54,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:54,036 INFO L93 Difference]: Finished difference Result 193 states and 255 transitions. [2020-09-24 14:55:54,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 14:55:54,037 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 105 [2020-09-24 14:55:54,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:54,039 INFO L225 Difference]: With dead ends: 193 [2020-09-24 14:55:54,039 INFO L226 Difference]: Without dead ends: 105 [2020-09-24 14:55:54,040 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2020-09-24 14:55:54,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 105 states. [2020-09-24 14:55:54,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 105 to 105. [2020-09-24 14:55:54,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-24 14:55:54,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 127 transitions. [2020-09-24 14:55:54,049 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 127 transitions. Word has length 105 [2020-09-24 14:55:54,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:54,050 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 127 transitions. [2020-09-24 14:55:54,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 14:55:54,050 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 127 transitions. [2020-09-24 14:55:54,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-09-24 14:55:54,052 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:54,052 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 7, 7, 6, 6, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:54,053 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-24 14:55:54,053 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:54,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:54,053 INFO L82 PathProgramCache]: Analyzing trace with hash -1260071360, now seen corresponding path program 1 times [2020-09-24 14:55:54,054 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:54,054 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772354256] [2020-09-24 14:55:54,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:54,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:54,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:54,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,286 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:54,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,290 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:54,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:54,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:54,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:54,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:54,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 26 proven. 126 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2020-09-24 14:55:54,360 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772354256] [2020-09-24 14:55:54,361 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:54,361 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-09-24 14:55:54,361 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285676173] [2020-09-24 14:55:54,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-24 14:55:54,362 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:54,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-24 14:55:54,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-09-24 14:55:54,363 INFO L87 Difference]: Start difference. First operand 105 states and 127 transitions. Second operand 10 states. [2020-09-24 14:55:54,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:54,644 INFO L93 Difference]: Finished difference Result 214 states and 288 transitions. [2020-09-24 14:55:54,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-24 14:55:54,644 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 140 [2020-09-24 14:55:54,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:54,648 INFO L225 Difference]: With dead ends: 214 [2020-09-24 14:55:54,648 INFO L226 Difference]: Without dead ends: 208 [2020-09-24 14:55:54,649 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2020-09-24 14:55:54,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2020-09-24 14:55:54,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 189. [2020-09-24 14:55:54,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 189 states. [2020-09-24 14:55:54,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 256 transitions. [2020-09-24 14:55:54,666 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 256 transitions. Word has length 140 [2020-09-24 14:55:54,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:54,666 INFO L479 AbstractCegarLoop]: Abstraction has 189 states and 256 transitions. [2020-09-24 14:55:54,666 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-24 14:55:54,667 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 256 transitions. [2020-09-24 14:55:54,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-09-24 14:55:54,670 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:54,670 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 11, 10, 10, 8, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:54,671 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-24 14:55:54,671 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:54,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:54,671 INFO L82 PathProgramCache]: Analyzing trace with hash 239143290, now seen corresponding path program 2 times [2020-09-24 14:55:54,672 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:54,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1589609947] [2020-09-24 14:55:54,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:54,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:54,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:54,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:54,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:54,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:54,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:54,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:54,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:55,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,032 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-24 14:55:55,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:55,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:55,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-09-24 14:55:55,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:55,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:55,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:55,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,263 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 181 proven. 247 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2020-09-24 14:55:55,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1589609947] [2020-09-24 14:55:55,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:55,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-09-24 14:55:55,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074822015] [2020-09-24 14:55:55,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 14:55:55,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:55,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 14:55:55,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-09-24 14:55:55,266 INFO L87 Difference]: Start difference. First operand 189 states and 256 transitions. Second operand 15 states. [2020-09-24 14:55:55,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:55,906 INFO L93 Difference]: Finished difference Result 454 states and 698 transitions. [2020-09-24 14:55:55,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-09-24 14:55:55,907 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 211 [2020-09-24 14:55:55,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:55,912 INFO L225 Difference]: With dead ends: 454 [2020-09-24 14:55:55,912 INFO L226 Difference]: Without dead ends: 273 [2020-09-24 14:55:55,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2020-09-24 14:55:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-09-24 14:55:55,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 249. [2020-09-24 14:55:55,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 249 states. [2020-09-24 14:55:55,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 249 states to 249 states and 352 transitions. [2020-09-24 14:55:55,936 INFO L78 Accepts]: Start accepts. Automaton has 249 states and 352 transitions. Word has length 211 [2020-09-24 14:55:55,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:55,937 INFO L479 AbstractCegarLoop]: Abstraction has 249 states and 352 transitions. [2020-09-24 14:55:55,937 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 14:55:55,937 INFO L276 IsEmpty]: Start isEmpty. Operand 249 states and 352 transitions. [2020-09-24 14:55:55,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-24 14:55:55,941 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:55,941 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 8, 7, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:55,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-24 14:55:55,942 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:55,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:55,942 INFO L82 PathProgramCache]: Analyzing trace with hash 532943989, now seen corresponding path program 3 times [2020-09-24 14:55:55,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:55,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536510596] [2020-09-24 14:55:55,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:55,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:55,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:55,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:56,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,031 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:56,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:56,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:56,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:56,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:56,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-24 14:55:56,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,322 INFO L134 CoverageAnalysis]: Checked inductivity of 494 backedges. 137 proven. 101 refuted. 0 times theorem prover too weak. 256 trivial. 0 not checked. [2020-09-24 14:55:56,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536510596] [2020-09-24 14:55:56,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:56,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-09-24 14:55:56,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192196390] [2020-09-24 14:55:56,324 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-24 14:55:56,324 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:56,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-24 14:55:56,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-09-24 14:55:56,325 INFO L87 Difference]: Start difference. First operand 249 states and 352 transitions. Second operand 11 states. [2020-09-24 14:55:56,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:56,611 INFO L93 Difference]: Finished difference Result 522 states and 789 transitions. [2020-09-24 14:55:56,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-24 14:55:56,611 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 175 [2020-09-24 14:55:56,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:56,616 INFO L225 Difference]: With dead ends: 522 [2020-09-24 14:55:56,616 INFO L226 Difference]: Without dead ends: 286 [2020-09-24 14:55:56,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-09-24 14:55:56,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-09-24 14:55:56,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 283. [2020-09-24 14:55:56,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 283 states. [2020-09-24 14:55:56,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 408 transitions. [2020-09-24 14:55:56,640 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 408 transitions. Word has length 175 [2020-09-24 14:55:56,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:56,641 INFO L479 AbstractCegarLoop]: Abstraction has 283 states and 408 transitions. [2020-09-24 14:55:56,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-24 14:55:56,641 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 408 transitions. [2020-09-24 14:55:56,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-09-24 14:55:56,647 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:56,647 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 14, 14, 13, 12, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 4, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:56,648 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-09-24 14:55:56,648 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:56,648 INFO L82 PathProgramCache]: Analyzing trace with hash -2113087688, now seen corresponding path program 4 times [2020-09-24 14:55:56,649 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:56,649 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [138592793] [2020-09-24 14:55:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:56,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:56,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:56,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:57,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,089 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:57,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:57,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:57,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:57,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:57,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:55:57,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:57,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:57,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:57,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:57,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:57,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:57,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:57,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:57,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:57,566 INFO L134 CoverageAnalysis]: Checked inductivity of 1423 backedges. 261 proven. 446 refuted. 0 times theorem prover too weak. 716 trivial. 0 not checked. [2020-09-24 14:55:57,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [138592793] [2020-09-24 14:55:57,567 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:57,567 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 14:55:57,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116967021] [2020-09-24 14:55:57,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 14:55:57,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:57,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 14:55:57,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-09-24 14:55:57,569 INFO L87 Difference]: Start difference. First operand 283 states and 408 transitions. Second operand 16 states. [2020-09-24 14:55:58,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:55:58,458 INFO L93 Difference]: Finished difference Result 550 states and 860 transitions. [2020-09-24 14:55:58,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-09-24 14:55:58,458 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 281 [2020-09-24 14:55:58,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:55:58,463 INFO L225 Difference]: With dead ends: 550 [2020-09-24 14:55:58,464 INFO L226 Difference]: Without dead ends: 227 [2020-09-24 14:55:58,469 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=186, Invalid=1004, Unknown=0, NotChecked=0, Total=1190 [2020-09-24 14:55:58,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2020-09-24 14:55:58,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 181. [2020-09-24 14:55:58,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2020-09-24 14:55:58,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 240 transitions. [2020-09-24 14:55:58,488 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 240 transitions. Word has length 281 [2020-09-24 14:55:58,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:55:58,488 INFO L479 AbstractCegarLoop]: Abstraction has 181 states and 240 transitions. [2020-09-24 14:55:58,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 14:55:58,488 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 240 transitions. [2020-09-24 14:55:58,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-09-24 14:55:58,495 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:55:58,495 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 5, 5, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:55:58,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-09-24 14:55:58,495 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:55:58,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:55:58,496 INFO L82 PathProgramCache]: Analyzing trace with hash 1898384370, now seen corresponding path program 5 times [2020-09-24 14:55:58,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:55:58,497 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767163544] [2020-09-24 14:55:58,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:55:58,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:58,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:55:58,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:58,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:55:58,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:58,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:58,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:58,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:58,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:58,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:58,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:59,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:59,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-09-24 14:55:59,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,352 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,357 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:59,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,404 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:55:59,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:59,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:55:59,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:55:59,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:55:59,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:55:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:55:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:55:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2535 backedges. 332 proven. 608 refuted. 0 times theorem prover too weak. 1595 trivial. 0 not checked. [2020-09-24 14:55:59,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767163544] [2020-09-24 14:55:59,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:55:59,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-09-24 14:55:59,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064707599] [2020-09-24 14:55:59,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-24 14:55:59,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:55:59,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-24 14:55:59,736 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2020-09-24 14:55:59,736 INFO L87 Difference]: Start difference. First operand 181 states and 240 transitions. Second operand 14 states. [2020-09-24 14:56:00,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:00,232 INFO L93 Difference]: Finished difference Result 335 states and 458 transitions. [2020-09-24 14:56:00,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-09-24 14:56:00,232 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 369 [2020-09-24 14:56:00,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:00,235 INFO L225 Difference]: With dead ends: 335 [2020-09-24 14:56:00,236 INFO L226 Difference]: Without dead ends: 161 [2020-09-24 14:56:00,238 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2020-09-24 14:56:00,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2020-09-24 14:56:00,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 153. [2020-09-24 14:56:00,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-09-24 14:56:00,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 191 transitions. [2020-09-24 14:56:00,254 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 191 transitions. Word has length 369 [2020-09-24 14:56:00,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:00,255 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 191 transitions. [2020-09-24 14:56:00,255 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-24 14:56:00,255 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 191 transitions. [2020-09-24 14:56:00,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-09-24 14:56:00,267 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:00,267 INFO L422 BasicCegarLoop]: trace histogram [21, 21, 20, 20, 17, 16, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 7, 7, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:00,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-09-24 14:56:00,268 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:00,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:00,268 INFO L82 PathProgramCache]: Analyzing trace with hash 549243331, now seen corresponding path program 6 times [2020-09-24 14:56:00,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:00,269 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795112383] [2020-09-24 14:56:00,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:00,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:00,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:00,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:00,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:00,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:00,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:00,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:00,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:00,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:00,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:00,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:00,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:00,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:01,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:01,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:01,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:01,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:01,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,337 INFO L134 CoverageAnalysis]: Checked inductivity of 2534 backedges. 130 proven. 672 refuted. 0 times theorem prover too weak. 1732 trivial. 0 not checked. [2020-09-24 14:56:01,337 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795112383] [2020-09-24 14:56:01,337 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:01,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-24 14:56:01,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432980116] [2020-09-24 14:56:01,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-24 14:56:01,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:01,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-24 14:56:01,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-09-24 14:56:01,339 INFO L87 Difference]: Start difference. First operand 153 states and 191 transitions. Second operand 12 states. [2020-09-24 14:56:01,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:01,673 INFO L93 Difference]: Finished difference Result 376 states and 522 transitions. [2020-09-24 14:56:01,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-09-24 14:56:01,673 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 369 [2020-09-24 14:56:01,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:01,681 INFO L225 Difference]: With dead ends: 376 [2020-09-24 14:56:01,681 INFO L226 Difference]: Without dead ends: 370 [2020-09-24 14:56:01,683 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2020-09-24 14:56:01,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states. [2020-09-24 14:56:01,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 333. [2020-09-24 14:56:01,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 333 states. [2020-09-24 14:56:01,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 333 states to 333 states and 461 transitions. [2020-09-24 14:56:01,708 INFO L78 Accepts]: Start accepts. Automaton has 333 states and 461 transitions. Word has length 369 [2020-09-24 14:56:01,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:01,709 INFO L479 AbstractCegarLoop]: Abstraction has 333 states and 461 transitions. [2020-09-24 14:56:01,709 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-24 14:56:01,709 INFO L276 IsEmpty]: Start isEmpty. Operand 333 states and 461 transitions. [2020-09-24 14:56:01,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 546 [2020-09-24 14:56:01,724 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:01,725 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 30, 30, 25, 24, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 15, 10, 10, 9, 9, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:01,725 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-09-24 14:56:01,725 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:01,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:01,726 INFO L82 PathProgramCache]: Analyzing trace with hash -444779053, now seen corresponding path program 7 times [2020-09-24 14:56:01,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:01,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [555812385] [2020-09-24 14:56:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:01,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:01,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:01,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:02,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,191 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:02,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:02,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:02,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,630 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:02,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,650 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:02,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:02,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,702 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:02,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:02,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,877 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:02,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:02,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 310 [2020-09-24 14:56:02,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:03,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:03,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:03,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:03,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:03,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:03,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:03,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:03,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 5757 backedges. 560 proven. 1270 refuted. 0 times theorem prover too weak. 3927 trivial. 0 not checked. [2020-09-24 14:56:03,594 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [555812385] [2020-09-24 14:56:03,594 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:03,594 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16] total 16 [2020-09-24 14:56:03,595 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399486389] [2020-09-24 14:56:03,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-09-24 14:56:03,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:03,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-09-24 14:56:03,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=204, Unknown=0, NotChecked=0, Total=240 [2020-09-24 14:56:03,607 INFO L87 Difference]: Start difference. First operand 333 states and 461 transitions. Second operand 16 states. [2020-09-24 14:56:04,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:04,310 INFO L93 Difference]: Finished difference Result 751 states and 1127 transitions. [2020-09-24 14:56:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-24 14:56:04,311 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 545 [2020-09-24 14:56:04,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:04,317 INFO L225 Difference]: With dead ends: 751 [2020-09-24 14:56:04,318 INFO L226 Difference]: Without dead ends: 432 [2020-09-24 14:56:04,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 154 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=132, Invalid=738, Unknown=0, NotChecked=0, Total=870 [2020-09-24 14:56:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432 states. [2020-09-24 14:56:04,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432 to 401. [2020-09-24 14:56:04,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 401 states. [2020-09-24 14:56:04,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 552 transitions. [2020-09-24 14:56:04,347 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 552 transitions. Word has length 545 [2020-09-24 14:56:04,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:04,348 INFO L479 AbstractCegarLoop]: Abstraction has 401 states and 552 transitions. [2020-09-24 14:56:04,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-09-24 14:56:04,348 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 552 transitions. [2020-09-24 14:56:04,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2020-09-24 14:56:04,353 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:04,356 INFO L422 BasicCegarLoop]: trace histogram [35, 35, 32, 32, 27, 27, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 16, 16, 16, 16, 16, 16, 16, 16, 16, 16, 11, 11, 10, 10, 8, 8, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:04,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-09-24 14:56:04,356 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:04,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:04,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1058675901, now seen corresponding path program 8 times [2020-09-24 14:56:04,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:04,359 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [275421198] [2020-09-24 14:56:04,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:04,708 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:04,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:04,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:04,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:04,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:05,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:05,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:05,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:05,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:05,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:05,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:05,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:05,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:05,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:05,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:05,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,821 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:05,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:05,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:05,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:05,834 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:05,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 451 [2020-09-24 14:56:06,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,070 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:06,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:06,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:06,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:06,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:06,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:06,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:06,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:06,689 INFO L134 CoverageAnalysis]: Checked inductivity of 6996 backedges. 747 proven. 1629 refuted. 0 times theorem prover too weak. 4620 trivial. 0 not checked. [2020-09-24 14:56:06,690 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [275421198] [2020-09-24 14:56:06,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:06,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 14:56:06,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530615388] [2020-09-24 14:56:06,691 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 14:56:06,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:06,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 14:56:06,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-09-24 14:56:06,693 INFO L87 Difference]: Start difference. First operand 401 states and 552 transitions. Second operand 18 states. [2020-09-24 14:56:07,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:07,913 INFO L93 Difference]: Finished difference Result 941 states and 1446 transitions. [2020-09-24 14:56:07,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2020-09-24 14:56:07,914 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 598 [2020-09-24 14:56:07,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:07,923 INFO L225 Difference]: With dead ends: 941 [2020-09-24 14:56:07,923 INFO L226 Difference]: Without dead ends: 544 [2020-09-24 14:56:07,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=261, Invalid=1545, Unknown=0, NotChecked=0, Total=1806 [2020-09-24 14:56:07,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544 states. [2020-09-24 14:56:07,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544 to 457. [2020-09-24 14:56:07,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 457 states. [2020-09-24 14:56:07,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 457 states to 457 states and 619 transitions. [2020-09-24 14:56:07,958 INFO L78 Accepts]: Start accepts. Automaton has 457 states and 619 transitions. Word has length 598 [2020-09-24 14:56:07,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:07,959 INFO L479 AbstractCegarLoop]: Abstraction has 457 states and 619 transitions. [2020-09-24 14:56:07,959 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 14:56:07,960 INFO L276 IsEmpty]: Start isEmpty. Operand 457 states and 619 transitions. [2020-09-24 14:56:07,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 652 [2020-09-24 14:56:07,965 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:07,966 INFO L422 BasicCegarLoop]: trace histogram [38, 38, 35, 35, 30, 29, 19, 19, 19, 19, 19, 19, 19, 19, 19, 19, 17, 17, 17, 17, 17, 17, 17, 17, 17, 17, 13, 13, 10, 10, 8, 8, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:07,966 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-09-24 14:56:07,966 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:07,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:07,967 INFO L82 PathProgramCache]: Analyzing trace with hash -2032720771, now seen corresponding path program 9 times [2020-09-24 14:56:07,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:07,967 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2100669976] [2020-09-24 14:56:07,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:07,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:08,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:08,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,931 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:08,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:08,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:08,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:08,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:08,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:08,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:08,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:09,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:09,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:09,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:09,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:09,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:09,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:09,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:09,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:09,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:09,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:09,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:09,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:10,569 INFO L134 CoverageAnalysis]: Checked inductivity of 8348 backedges. 1712 proven. 1706 refuted. 0 times theorem prover too weak. 4930 trivial. 0 not checked. [2020-09-24 14:56:10,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2100669976] [2020-09-24 14:56:10,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:10,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2020-09-24 14:56:10,570 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561561671] [2020-09-24 14:56:10,571 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-09-24 14:56:10,571 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:10,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-09-24 14:56:10,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=474, Unknown=0, NotChecked=0, Total=552 [2020-09-24 14:56:10,572 INFO L87 Difference]: Start difference. First operand 457 states and 619 transitions. Second operand 24 states. [2020-09-24 14:56:12,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:12,318 INFO L93 Difference]: Finished difference Result 806 states and 1229 transitions. [2020-09-24 14:56:12,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2020-09-24 14:56:12,319 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 651 [2020-09-24 14:56:12,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:12,325 INFO L225 Difference]: With dead ends: 806 [2020-09-24 14:56:12,325 INFO L226 Difference]: Without dead ends: 366 [2020-09-24 14:56:12,334 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 209 GetRequests, 150 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1045 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=515, Invalid=3145, Unknown=0, NotChecked=0, Total=3660 [2020-09-24 14:56:12,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2020-09-24 14:56:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 305. [2020-09-24 14:56:12,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 305 states. [2020-09-24 14:56:12,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 416 transitions. [2020-09-24 14:56:12,358 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 416 transitions. Word has length 651 [2020-09-24 14:56:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:12,359 INFO L479 AbstractCegarLoop]: Abstraction has 305 states and 416 transitions. [2020-09-24 14:56:12,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-09-24 14:56:12,359 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 416 transitions. [2020-09-24 14:56:12,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-09-24 14:56:12,382 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:12,382 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 51, 50, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 20, 20, 19, 19, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:12,383 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-09-24 14:56:12,383 INFO L427 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:12,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:12,384 INFO L82 PathProgramCache]: Analyzing trace with hash 162788429, now seen corresponding path program 10 times [2020-09-24 14:56:12,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:12,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [178687587] [2020-09-24 14:56:12,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:12,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:13,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:13,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:13,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:13,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:13,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:13,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:14,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:14,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:14,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:14,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:14,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:14,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:14,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,590 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:14,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:14,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:14,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:14,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:14,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:14,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,946 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:14,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:14,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:15,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:15,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:15,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,190 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:15,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:15,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:15,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,252 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-09-24 14:56:15,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:15,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:15,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:15,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,913 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:15,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:15,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:15,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:15,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:15,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:16,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:16,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:16,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:16,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:16,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:16,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:16,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:16,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:16,025 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:16,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:17,490 INFO L134 CoverageAnalysis]: Checked inductivity of 24879 backedges. 1493 proven. 4152 refuted. 0 times theorem prover too weak. 19234 trivial. 0 not checked. [2020-09-24 14:56:17,491 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [178687587] [2020-09-24 14:56:17,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:17,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 14:56:17,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548260253] [2020-09-24 14:56:17,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 14:56:17,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:17,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 14:56:17,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-09-24 14:56:17,494 INFO L87 Difference]: Start difference. First operand 305 states and 416 transitions. Second operand 20 states. [2020-09-24 14:56:19,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:19,034 INFO L93 Difference]: Finished difference Result 598 states and 934 transitions. [2020-09-24 14:56:19,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-09-24 14:56:19,035 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 1109 [2020-09-24 14:56:19,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:19,040 INFO L225 Difference]: With dead ends: 598 [2020-09-24 14:56:19,040 INFO L226 Difference]: Without dead ends: 301 [2020-09-24 14:56:19,044 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 303 GetRequests, 254 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 637 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=343, Invalid=2207, Unknown=0, NotChecked=0, Total=2550 [2020-09-24 14:56:19,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 301 states. [2020-09-24 14:56:19,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 301 to 262. [2020-09-24 14:56:19,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 262 states. [2020-09-24 14:56:19,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 262 states to 262 states and 359 transitions. [2020-09-24 14:56:19,061 INFO L78 Accepts]: Start accepts. Automaton has 262 states and 359 transitions. Word has length 1109 [2020-09-24 14:56:19,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:19,062 INFO L479 AbstractCegarLoop]: Abstraction has 262 states and 359 transitions. [2020-09-24 14:56:19,063 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-24 14:56:19,063 INFO L276 IsEmpty]: Start isEmpty. Operand 262 states and 359 transitions. [2020-09-24 14:56:19,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1198 [2020-09-24 14:56:19,078 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:19,078 INFO L422 BasicCegarLoop]: trace histogram [69, 69, 66, 66, 55, 54, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 33, 33, 33, 33, 33, 33, 33, 33, 33, 33, 22, 22, 20, 20, 14, 14, 12, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:19,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-09-24 14:56:19,079 INFO L427 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:19,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:19,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1276412584, now seen corresponding path program 11 times [2020-09-24 14:56:19,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:19,080 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199589354] [2020-09-24 14:56:19,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:19,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:20,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:20,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:20,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:20,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:20,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:20,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,003 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,081 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,233 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:21,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:21,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:21,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:21,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:21,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,394 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:21,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:21,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,466 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:21,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:21,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:21,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:21,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:21,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:21,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:21,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:21,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:21,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2020-09-24 14:56:22,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,374 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,485 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,542 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:22,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:22,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:22,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:22,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,611 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:22,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,615 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:22,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,653 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:22,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:22,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:22,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,742 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:22,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:22,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:22,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:22,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:22,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:23,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:23,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:23,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,029 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:23,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:23,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,037 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:23,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:23,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:23,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:23,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:24,207 INFO L134 CoverageAnalysis]: Checked inductivity of 29081 backedges. 2319 proven. 4338 refuted. 0 times theorem prover too weak. 22424 trivial. 0 not checked. [2020-09-24 14:56:24,207 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199589354] [2020-09-24 14:56:24,208 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:24,208 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2020-09-24 14:56:24,208 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526595230] [2020-09-24 14:56:24,209 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-09-24 14:56:24,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:24,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-09-24 14:56:24,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=399, Unknown=0, NotChecked=0, Total=462 [2020-09-24 14:56:24,210 INFO L87 Difference]: Start difference. First operand 262 states and 359 transitions. Second operand 22 states. [2020-09-24 14:56:26,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:26,168 INFO L93 Difference]: Finished difference Result 559 states and 871 transitions. [2020-09-24 14:56:26,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-09-24 14:56:26,173 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 1197 [2020-09-24 14:56:26,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:26,186 INFO L225 Difference]: With dead ends: 559 [2020-09-24 14:56:26,186 INFO L226 Difference]: Without dead ends: 310 [2020-09-24 14:56:26,192 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 330 GetRequests, 273 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 907 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=436, Invalid=2986, Unknown=0, NotChecked=0, Total=3422 [2020-09-24 14:56:26,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 310 states. [2020-09-24 14:56:26,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 310 to 264. [2020-09-24 14:56:26,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-24 14:56:26,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 350 transitions. [2020-09-24 14:56:26,217 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 350 transitions. Word has length 1197 [2020-09-24 14:56:26,217 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:26,217 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 350 transitions. [2020-09-24 14:56:26,218 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-09-24 14:56:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 350 transitions. [2020-09-24 14:56:26,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1110 [2020-09-24 14:56:26,236 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:26,237 INFO L422 BasicCegarLoop]: trace histogram [63, 63, 62, 62, 51, 50, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 31, 20, 20, 19, 19, 13, 13, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:26,237 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-09-24 14:56:26,237 INFO L427 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:26,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:26,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1141062374, now seen corresponding path program 12 times [2020-09-24 14:56:26,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:26,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1542917470] [2020-09-24 14:56:26,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:26,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:26,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:26,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:26,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:26,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:27,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:27,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:27,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:27,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:27,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:27,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,005 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:28,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,102 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:28,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:28,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,119 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:28,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:28,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-09-24 14:56:28,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,757 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:28,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:28,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:28,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:28,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:28,804 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:28,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-09-24 14:56:29,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:29,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:29,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:29,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,165 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:29,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:29,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:29,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:29,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,269 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:29,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,289 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:29,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,304 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:29,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:29,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:29,308 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:30,338 INFO L134 CoverageAnalysis]: Checked inductivity of 24880 backedges. 1382 proven. 3782 refuted. 0 times theorem prover too weak. 19716 trivial. 0 not checked. [2020-09-24 14:56:30,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1542917470] [2020-09-24 14:56:30,339 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:30,339 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18] total 18 [2020-09-24 14:56:30,339 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143613800] [2020-09-24 14:56:30,340 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-24 14:56:30,340 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:30,341 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-24 14:56:30,341 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-09-24 14:56:30,341 INFO L87 Difference]: Start difference. First operand 264 states and 350 transitions. Second operand 18 states. [2020-09-24 14:56:31,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 14:56:31,306 INFO L93 Difference]: Finished difference Result 543 states and 761 transitions. [2020-09-24 14:56:31,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-09-24 14:56:31,307 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 1109 [2020-09-24 14:56:31,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 14:56:31,311 INFO L225 Difference]: With dead ends: 543 [2020-09-24 14:56:31,311 INFO L226 Difference]: Without dead ends: 297 [2020-09-24 14:56:31,314 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 291 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 267 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=196, Invalid=1210, Unknown=0, NotChecked=0, Total=1406 [2020-09-24 14:56:31,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2020-09-24 14:56:31,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 279. [2020-09-24 14:56:31,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 279 states. [2020-09-24 14:56:31,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 375 transitions. [2020-09-24 14:56:31,330 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 375 transitions. Word has length 1109 [2020-09-24 14:56:31,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 14:56:31,331 INFO L479 AbstractCegarLoop]: Abstraction has 279 states and 375 transitions. [2020-09-24 14:56:31,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-24 14:56:31,331 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 375 transitions. [2020-09-24 14:56:31,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2020-09-24 14:56:31,349 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 14:56:31,349 INFO L422 BasicCegarLoop]: trace histogram [81, 81, 80, 80, 65, 65, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 40, 25, 25, 25, 25, 16, 16, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 14:56:31,350 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-09-24 14:56:31,350 INFO L427 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 14:56:31,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 14:56:31,351 INFO L82 PathProgramCache]: Analyzing trace with hash -885503600, now seen corresponding path program 13 times [2020-09-24 14:56:31,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 14:56:31,351 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656747270] [2020-09-24 14:56:31,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 14:56:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:32,043 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 14:56:32,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:32,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-09-24 14:56:32,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:32,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:32,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:32,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:32,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:33,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,261 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:33,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:33,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,460 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:33,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 592 [2020-09-24 14:56:33,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,839 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,860 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,892 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:33,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,895 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:33,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:33,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:33,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 821 [2020-09-24 14:56:34,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:34,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,339 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:34,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,343 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,345 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,356 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:34,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:34,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-24 14:56:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,407 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,413 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,419 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,420 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:34,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:34,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,436 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-09-24 14:56:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,540 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-09-24 14:56:34,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,557 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 14:56:34,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-09-24 14:56:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,587 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-09-24 14:56:34,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-24 14:56:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:34,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2020-09-24 14:56:34,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 14:56:36,127 INFO L134 CoverageAnalysis]: Checked inductivity of 41505 backedges. 2148 proven. 5322 refuted. 0 times theorem prover too weak. 34035 trivial. 0 not checked. [2020-09-24 14:56:36,128 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656747270] [2020-09-24 14:56:36,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-24 14:56:36,128 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-24 14:56:36,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146173323] [2020-09-24 14:56:36,130 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-24 14:56:36,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 14:56:36,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-24 14:56:36,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=327, Unknown=0, NotChecked=0, Total=380 [2020-09-24 14:56:36,130 INFO L87 Difference]: Start difference. First operand 279 states and 375 transitions. Second operand 20 states.