/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 12:11:12,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 12:11:12,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 12:11:12,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 12:11:12,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 12:11:12,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 12:11:12,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 12:11:12,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 12:11:12,155 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 12:11:12,156 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 12:11:12,157 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 12:11:12,158 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 12:11:12,159 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 12:11:12,160 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 12:11:12,161 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 12:11:12,162 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 12:11:12,162 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 12:11:12,163 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 12:11:12,165 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 12:11:12,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 12:11:12,169 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 12:11:12,170 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 12:11:12,171 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 12:11:12,172 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 12:11:12,176 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-17 12:11:12,178 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-17 12:11:12,178 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-17 12:11:12,179 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-17 12:11:12,179 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-17 12:11:12,180 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-17 12:11:12,180 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-17 12:11:12,181 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-17 12:11:12,183 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-17 12:11:12,184 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-17 12:11:12,185 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-17 12:11:12,185 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-17 12:11:12,186 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-17 12:11:12,186 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-17 12:11:12,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 12:11:12,190 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 12:11:12,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 12:11:12,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 12:11:12,214 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 12:11:12,214 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 12:11:12,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 12:11:12,216 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 12:11:12,216 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 12:11:12,216 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 12:11:12,216 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 12:11:12,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 12:11:12,217 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 12:11:12,217 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 12:11:12,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 12:11:12,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 12:11:12,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 12:11:12,219 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 12:11:12,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 12:11:12,219 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 12:11:12,219 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 12:11:12,220 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 12:11:12,220 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 12:11:12,220 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 12:11:12,220 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 12:11:12,220 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:11:12,221 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 12:11:12,221 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 12:11:12,221 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 12:11:12,221 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 12:11:12,221 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 12:11:12,222 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 12:11:12,222 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 12:11:12,222 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 12:11:12,520 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 12:11:12,537 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 12:11:12,541 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 12:11:12,543 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 12:11:12,543 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 12:11:12,544 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-17 12:11:12,618 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d02cd908/1028ac559d66464d9f831e39ab89c234/FLAG40211eb27 [2020-07-17 12:11:13,194 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 12:11:13,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-07-17 12:11:13,209 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d02cd908/1028ac559d66464d9f831e39ab89c234/FLAG40211eb27 [2020-07-17 12:11:13,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d02cd908/1028ac559d66464d9f831e39ab89c234 [2020-07-17 12:11:13,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 12:11:13,438 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 12:11:13,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 12:11:13,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 12:11:13,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 12:11:13,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:11:13" (1/1) ... [2020-07-17 12:11:13,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51541991 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:13, skipping insertion in model container [2020-07-17 12:11:13,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 12:11:13" (1/1) ... [2020-07-17 12:11:13,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 12:11:13,522 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 12:11:13,993 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:11:14,001 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 12:11:14,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 12:11:14,309 INFO L208 MainTranslator]: Completed translation [2020-07-17 12:11:14,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14 WrapperNode [2020-07-17 12:11:14,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 12:11:14,311 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 12:11:14,311 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 12:11:14,311 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 12:11:14,325 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,325 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,345 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,346 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,444 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... [2020-07-17 12:11:14,455 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 12:11:14,456 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 12:11:14,456 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 12:11:14,456 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 12:11:14,457 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 12:11:14,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 12:11:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 12:11:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-17 12:11:14,523 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 12:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-17 12:11:14,523 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 12:11:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 12:11:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-17 12:11:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 12:11:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 12:11:14,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 12:11:15,742 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 12:11:15,743 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 12:11:15,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:11:15 BoogieIcfgContainer [2020-07-17 12:11:15,749 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 12:11:15,750 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 12:11:15,751 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 12:11:15,754 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 12:11:15,754 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 12:11:13" (1/3) ... [2020-07-17 12:11:15,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdc163d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:11:15, skipping insertion in model container [2020-07-17 12:11:15,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 12:11:14" (2/3) ... [2020-07-17 12:11:15,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bdc163d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 12:11:15, skipping insertion in model container [2020-07-17 12:11:15,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 12:11:15" (3/3) ... [2020-07-17 12:11:15,757 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-07-17 12:11:15,767 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 12:11:15,775 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 12:11:15,788 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 12:11:15,812 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 12:11:15,813 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 12:11:15,813 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 12:11:15,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 12:11:15,813 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 12:11:15,813 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 12:11:15,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 12:11:15,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 12:11:15,835 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-07-17 12:11:15,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2020-07-17 12:11:15,844 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:15,845 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:15,846 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:15,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:15,851 INFO L82 PathProgramCache]: Analyzing trace with hash -281448013, now seen corresponding path program 1 times [2020-07-17 12:11:15,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:15,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696567238] [2020-07-17 12:11:15,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:15,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:16,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:16,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:16,210 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696567238] [2020-07-17 12:11:16,211 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:11:16,211 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-17 12:11:16,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286714893] [2020-07-17 12:11:16,218 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:11:16,218 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:16,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:11:16,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 12:11:16,235 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 5 states. [2020-07-17 12:11:19,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:19,058 INFO L93 Difference]: Finished difference Result 902 states and 1625 transitions. [2020-07-17 12:11:19,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:11:19,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 56 [2020-07-17 12:11:19,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:19,078 INFO L225 Difference]: With dead ends: 902 [2020-07-17 12:11:19,078 INFO L226 Difference]: Without dead ends: 564 [2020-07-17 12:11:19,087 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:11:19,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-07-17 12:11:19,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 376. [2020-07-17 12:11:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 376 states. [2020-07-17 12:11:19,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 528 transitions. [2020-07-17 12:11:19,165 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 528 transitions. Word has length 56 [2020-07-17 12:11:19,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:19,165 INFO L479 AbstractCegarLoop]: Abstraction has 376 states and 528 transitions. [2020-07-17 12:11:19,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:11:19,166 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 528 transitions. [2020-07-17 12:11:19,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-17 12:11:19,174 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:19,174 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:19,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 12:11:19,175 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:19,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:19,175 INFO L82 PathProgramCache]: Analyzing trace with hash 123351809, now seen corresponding path program 1 times [2020-07-17 12:11:19,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:19,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725777768] [2020-07-17 12:11:19,176 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:19,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:19,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:19,582 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:19,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725777768] [2020-07-17 12:11:19,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 12:11:19,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 12:11:19,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022648091] [2020-07-17 12:11:19,585 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 12:11:19,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:19,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 12:11:19,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-17 12:11:19,586 INFO L87 Difference]: Start difference. First operand 376 states and 528 transitions. Second operand 8 states. [2020-07-17 12:11:21,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:21,717 INFO L93 Difference]: Finished difference Result 1134 states and 1534 transitions. [2020-07-17 12:11:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-17 12:11:21,717 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-07-17 12:11:21,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:21,726 INFO L225 Difference]: With dead ends: 1134 [2020-07-17 12:11:21,726 INFO L226 Difference]: Without dead ends: 764 [2020-07-17 12:11:21,728 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-17 12:11:21,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 764 states. [2020-07-17 12:11:21,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 764 to 564. [2020-07-17 12:11:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 564 states. [2020-07-17 12:11:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 564 states to 564 states and 750 transitions. [2020-07-17 12:11:21,762 INFO L78 Accepts]: Start accepts. Automaton has 564 states and 750 transitions. Word has length 139 [2020-07-17 12:11:21,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:21,762 INFO L479 AbstractCegarLoop]: Abstraction has 564 states and 750 transitions. [2020-07-17 12:11:21,763 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 12:11:21,763 INFO L276 IsEmpty]: Start isEmpty. Operand 564 states and 750 transitions. [2020-07-17 12:11:21,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-17 12:11:21,767 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:21,767 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:21,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 12:11:21,768 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:21,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:21,768 INFO L82 PathProgramCache]: Analyzing trace with hash -1050217491, now seen corresponding path program 1 times [2020-07-17 12:11:21,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:21,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [231204032] [2020-07-17 12:11:21,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:21,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:21,979 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:21,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [231204032] [2020-07-17 12:11:21,980 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716292177] [2020-07-17 12:11:21,980 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:22,070 INFO L264 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:11:22,087 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:22,163 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:22,163 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:22,164 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-17 12:11:22,164 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618870223] [2020-07-17 12:11:22,165 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:11:22,165 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:22,165 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:11:22,166 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:22,166 INFO L87 Difference]: Start difference. First operand 564 states and 750 transitions. Second operand 3 states. [2020-07-17 12:11:23,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:23,091 INFO L93 Difference]: Finished difference Result 1674 states and 2258 transitions. [2020-07-17 12:11:23,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:11:23,097 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 165 [2020-07-17 12:11:23,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:23,103 INFO L225 Difference]: With dead ends: 1674 [2020-07-17 12:11:23,104 INFO L226 Difference]: Without dead ends: 1116 [2020-07-17 12:11:23,106 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:23,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1116 states. [2020-07-17 12:11:23,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1116 to 1116. [2020-07-17 12:11:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1116 states. [2020-07-17 12:11:23,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1116 states to 1116 states and 1450 transitions. [2020-07-17 12:11:23,146 INFO L78 Accepts]: Start accepts. Automaton has 1116 states and 1450 transitions. Word has length 165 [2020-07-17 12:11:23,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:23,146 INFO L479 AbstractCegarLoop]: Abstraction has 1116 states and 1450 transitions. [2020-07-17 12:11:23,146 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:11:23,147 INFO L276 IsEmpty]: Start isEmpty. Operand 1116 states and 1450 transitions. [2020-07-17 12:11:23,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-07-17 12:11:23,152 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:23,152 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:23,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-17 12:11:23,367 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:23,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:23,368 INFO L82 PathProgramCache]: Analyzing trace with hash 502777661, now seen corresponding path program 1 times [2020-07-17 12:11:23,369 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:23,370 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248115648] [2020-07-17 12:11:23,370 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:23,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,597 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 48 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:23,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248115648] [2020-07-17 12:11:23,598 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590947486] [2020-07-17 12:11:23,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:23,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:23,684 INFO L264 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:11:23,701 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:23,769 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:23,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:23,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-07-17 12:11:23,771 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824402431] [2020-07-17 12:11:23,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:11:23,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:23,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:11:23,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:23,772 INFO L87 Difference]: Start difference. First operand 1116 states and 1450 transitions. Second operand 3 states. [2020-07-17 12:11:24,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:24,587 INFO L93 Difference]: Finished difference Result 1856 states and 2488 transitions. [2020-07-17 12:11:24,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:11:24,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 189 [2020-07-17 12:11:24,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:24,599 INFO L225 Difference]: With dead ends: 1856 [2020-07-17 12:11:24,600 INFO L226 Difference]: Without dead ends: 1854 [2020-07-17 12:11:24,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 197 GetRequests, 193 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-17 12:11:24,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1854 states. [2020-07-17 12:11:24,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1854 to 1304. [2020-07-17 12:11:24,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1304 states. [2020-07-17 12:11:24,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1304 states to 1304 states and 1769 transitions. [2020-07-17 12:11:24,648 INFO L78 Accepts]: Start accepts. Automaton has 1304 states and 1769 transitions. Word has length 189 [2020-07-17 12:11:24,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:24,649 INFO L479 AbstractCegarLoop]: Abstraction has 1304 states and 1769 transitions. [2020-07-17 12:11:24,649 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:11:24,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1304 states and 1769 transitions. [2020-07-17 12:11:24,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-07-17 12:11:24,653 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:24,653 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-17 12:11:24,866 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:24,867 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:24,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:24,868 INFO L82 PathProgramCache]: Analyzing trace with hash 837695806, now seen corresponding path program 1 times [2020-07-17 12:11:24,869 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:24,869 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459779541] [2020-07-17 12:11:24,870 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:24,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:24,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:24,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,090 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 98 proven. 65 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 12:11:25,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459779541] [2020-07-17 12:11:25,091 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [89203896] [2020-07-17 12:11:25,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:25,167 INFO L264 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-17 12:11:25,171 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:25,270 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 118 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-17 12:11:25,270 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:25,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-17 12:11:25,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930128123] [2020-07-17 12:11:25,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:11:25,273 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:25,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:11:25,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:11:25,274 INFO L87 Difference]: Start difference. First operand 1304 states and 1769 transitions. Second operand 5 states. [2020-07-17 12:11:26,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:26,895 INFO L93 Difference]: Finished difference Result 3194 states and 4515 transitions. [2020-07-17 12:11:26,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 12:11:26,898 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 209 [2020-07-17 12:11:26,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:26,911 INFO L225 Difference]: With dead ends: 3194 [2020-07-17 12:11:26,911 INFO L226 Difference]: Without dead ends: 1896 [2020-07-17 12:11:26,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-07-17 12:11:26,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1896 states. [2020-07-17 12:11:26,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1896 to 1870. [2020-07-17 12:11:26,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-07-17 12:11:26,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2428 transitions. [2020-07-17 12:11:26,982 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2428 transitions. Word has length 209 [2020-07-17 12:11:26,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:26,983 INFO L479 AbstractCegarLoop]: Abstraction has 1870 states and 2428 transitions. [2020-07-17 12:11:26,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:11:26,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2428 transitions. [2020-07-17 12:11:26,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-17 12:11:26,988 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:26,988 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2020-07-17 12:11:27,203 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:27,203 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:27,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:27,204 INFO L82 PathProgramCache]: Analyzing trace with hash -456723841, now seen corresponding path program 1 times [2020-07-17 12:11:27,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:27,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432561847] [2020-07-17 12:11:27,207 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:27,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:27,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 98 proven. 68 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-17 12:11:27,500 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432561847] [2020-07-17 12:11:27,501 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10897363] [2020-07-17 12:11:27,501 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:27,601 INFO L264 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 12:11:27,605 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:27,653 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-17 12:11:27,654 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:27,655 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:27,682 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:27,866 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-17 12:11:27,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:11:27,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-07-17 12:11:27,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587058115] [2020-07-17 12:11:27,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 12:11:27,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:27,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 12:11:27,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-07-17 12:11:27,868 INFO L87 Difference]: Start difference. First operand 1870 states and 2428 transitions. Second operand 5 states. [2020-07-17 12:11:29,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:29,396 INFO L93 Difference]: Finished difference Result 4136 states and 5379 transitions. [2020-07-17 12:11:29,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 12:11:29,396 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 212 [2020-07-17 12:11:29,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:29,409 INFO L225 Difference]: With dead ends: 4136 [2020-07-17 12:11:29,409 INFO L226 Difference]: Without dead ends: 2272 [2020-07-17 12:11:29,414 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=47, Invalid=135, Unknown=0, NotChecked=0, Total=182 [2020-07-17 12:11:29,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2272 states. [2020-07-17 12:11:29,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2272 to 2248. [2020-07-17 12:11:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2248 states. [2020-07-17 12:11:29,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2248 states to 2248 states and 2855 transitions. [2020-07-17 12:11:29,492 INFO L78 Accepts]: Start accepts. Automaton has 2248 states and 2855 transitions. Word has length 212 [2020-07-17 12:11:29,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:29,492 INFO L479 AbstractCegarLoop]: Abstraction has 2248 states and 2855 transitions. [2020-07-17 12:11:29,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 12:11:29,492 INFO L276 IsEmpty]: Start isEmpty. Operand 2248 states and 2855 transitions. [2020-07-17 12:11:29,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-17 12:11:29,496 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:29,496 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 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] [2020-07-17 12:11:29,710 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:29,711 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:29,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:29,712 INFO L82 PathProgramCache]: Analyzing trace with hash -657639750, now seen corresponding path program 1 times [2020-07-17 12:11:29,712 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:29,712 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878024853] [2020-07-17 12:11:29,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:29,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:30,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 128 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-17 12:11:30,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878024853] [2020-07-17 12:11:30,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535826035] [2020-07-17 12:11:30,443 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:30,522 INFO L264 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-17 12:11:30,526 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:30,633 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-17 12:11:30,634 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:30,636 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:30,637 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:11:30,768 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 12:11:30,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:30,769 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2020-07-17 12:11:30,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036393170] [2020-07-17 12:11:30,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-17 12:11:30,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:30,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-17 12:11:30,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2020-07-17 12:11:30,771 INFO L87 Difference]: Start difference. First operand 2248 states and 2855 transitions. Second operand 15 states. [2020-07-17 12:11:35,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:35,308 INFO L93 Difference]: Finished difference Result 4614 states and 5874 transitions. [2020-07-17 12:11:35,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-17 12:11:35,308 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 223 [2020-07-17 12:11:35,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:35,319 INFO L225 Difference]: With dead ends: 4614 [2020-07-17 12:11:35,319 INFO L226 Difference]: Without dead ends: 2327 [2020-07-17 12:11:35,325 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=318, Invalid=1164, Unknown=0, NotChecked=0, Total=1482 [2020-07-17 12:11:35,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2327 states. [2020-07-17 12:11:35,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2327 to 2246. [2020-07-17 12:11:35,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2246 states. [2020-07-17 12:11:35,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2246 states to 2246 states and 2658 transitions. [2020-07-17 12:11:35,389 INFO L78 Accepts]: Start accepts. Automaton has 2246 states and 2658 transitions. Word has length 223 [2020-07-17 12:11:35,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:35,390 INFO L479 AbstractCegarLoop]: Abstraction has 2246 states and 2658 transitions. [2020-07-17 12:11:35,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-17 12:11:35,390 INFO L276 IsEmpty]: Start isEmpty. Operand 2246 states and 2658 transitions. [2020-07-17 12:11:35,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-17 12:11:35,396 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:35,396 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:35,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2020-07-17 12:11:35,611 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:35,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:35,611 INFO L82 PathProgramCache]: Analyzing trace with hash 1026423962, now seen corresponding path program 1 times [2020-07-17 12:11:35,612 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:35,612 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581478880] [2020-07-17 12:11:35,612 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:35,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:35,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:35,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:35,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:36,349 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 245 proven. 94 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2020-07-17 12:11:36,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581478880] [2020-07-17 12:11:36,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [117244277] [2020-07-17 12:11:36,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:36,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:36,462 INFO L264 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:36,466 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:36,582 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 314 proven. 2 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2020-07-17 12:11:36,583 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:36,583 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 13 [2020-07-17 12:11:36,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910907455] [2020-07-17 12:11:36,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-07-17 12:11:36,584 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:36,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-07-17 12:11:36,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156 [2020-07-17 12:11:36,585 INFO L87 Difference]: Start difference. First operand 2246 states and 2658 transitions. Second operand 13 states. [2020-07-17 12:11:42,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:42,419 INFO L93 Difference]: Finished difference Result 5814 states and 6975 transitions. [2020-07-17 12:11:42,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-07-17 12:11:42,420 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 358 [2020-07-17 12:11:42,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:42,436 INFO L225 Difference]: With dead ends: 5814 [2020-07-17 12:11:42,436 INFO L226 Difference]: Without dead ends: 3574 [2020-07-17 12:11:42,443 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 750 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=469, Invalid=2287, Unknown=0, NotChecked=0, Total=2756 [2020-07-17 12:11:42,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3574 states. [2020-07-17 12:11:42,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3574 to 2998. [2020-07-17 12:11:42,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2998 states. [2020-07-17 12:11:42,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2998 states to 2998 states and 3526 transitions. [2020-07-17 12:11:42,517 INFO L78 Accepts]: Start accepts. Automaton has 2998 states and 3526 transitions. Word has length 358 [2020-07-17 12:11:42,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:42,518 INFO L479 AbstractCegarLoop]: Abstraction has 2998 states and 3526 transitions. [2020-07-17 12:11:42,518 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-07-17 12:11:42,518 INFO L276 IsEmpty]: Start isEmpty. Operand 2998 states and 3526 transitions. [2020-07-17 12:11:42,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 443 [2020-07-17 12:11:42,527 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:42,527 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1] [2020-07-17 12:11:42,740 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:42,741 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:42,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1567093203, now seen corresponding path program 1 times [2020-07-17 12:11:42,742 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:42,742 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544363849] [2020-07-17 12:11:42,742 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:42,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:42,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:42,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:42,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:42,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:43,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:43,437 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 448 proven. 6 refuted. 0 times theorem prover too weak. 268 trivial. 0 not checked. [2020-07-17 12:11:43,437 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544363849] [2020-07-17 12:11:43,438 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160979362] [2020-07-17 12:11:43,438 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:43,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:43,635 INFO L264 TraceCheckSpWp]: Trace formula consists of 698 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-17 12:11:43,640 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:43,728 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 4, 4, 1] term [2020-07-17 12:11:43,729 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:43,734 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:43,735 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:11:44,136 INFO L134 CoverageAnalysis]: Checked inductivity of 722 backedges. 449 proven. 2 refuted. 0 times theorem prover too weak. 271 trivial. 0 not checked. [2020-07-17 12:11:44,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:44,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2020-07-17 12:11:44,138 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811768541] [2020-07-17 12:11:44,139 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:11:44,139 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:44,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:11:44,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:11:44,140 INFO L87 Difference]: Start difference. First operand 2998 states and 3526 transitions. Second operand 11 states. [2020-07-17 12:11:47,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:47,315 INFO L93 Difference]: Finished difference Result 5922 states and 6981 transitions. [2020-07-17 12:11:47,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-17 12:11:47,315 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 442 [2020-07-17 12:11:47,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:47,327 INFO L225 Difference]: With dead ends: 5922 [2020-07-17 12:11:47,327 INFO L226 Difference]: Without dead ends: 2891 [2020-07-17 12:11:47,333 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 465 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=199, Invalid=613, Unknown=0, NotChecked=0, Total=812 [2020-07-17 12:11:47,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2891 states. [2020-07-17 12:11:47,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2891 to 2814. [2020-07-17 12:11:47,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2814 states. [2020-07-17 12:11:47,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2814 states to 2814 states and 3136 transitions. [2020-07-17 12:11:47,388 INFO L78 Accepts]: Start accepts. Automaton has 2814 states and 3136 transitions. Word has length 442 [2020-07-17 12:11:47,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:47,389 INFO L479 AbstractCegarLoop]: Abstraction has 2814 states and 3136 transitions. [2020-07-17 12:11:47,389 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:11:47,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2814 states and 3136 transitions. [2020-07-17 12:11:47,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 549 [2020-07-17 12:11:47,401 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:47,401 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:47,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:47,615 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:47,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:47,615 INFO L82 PathProgramCache]: Analyzing trace with hash 808508418, now seen corresponding path program 1 times [2020-07-17 12:11:47,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:47,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000658175] [2020-07-17 12:11:47,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:47,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:47,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:47,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:47,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:47,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:48,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:48,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 828 proven. 104 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-17 12:11:48,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000658175] [2020-07-17 12:11:48,524 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72963702] [2020-07-17 12:11:48,524 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:48,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:48,677 INFO L264 TraceCheckSpWp]: Trace formula consists of 839 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:48,685 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:48,915 INFO L134 CoverageAnalysis]: Checked inductivity of 1114 backedges. 740 proven. 2 refuted. 0 times theorem prover too weak. 372 trivial. 0 not checked. [2020-07-17 12:11:48,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:48,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-07-17 12:11:48,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532960318] [2020-07-17 12:11:48,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 12:11:48,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:48,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 12:11:48,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2020-07-17 12:11:48,917 INFO L87 Difference]: Start difference. First operand 2814 states and 3136 transitions. Second operand 14 states. [2020-07-17 12:11:54,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:54,242 INFO L93 Difference]: Finished difference Result 7915 states and 9051 transitions. [2020-07-17 12:11:54,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-07-17 12:11:54,243 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 548 [2020-07-17 12:11:54,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:54,262 INFO L225 Difference]: With dead ends: 7915 [2020-07-17 12:11:54,262 INFO L226 Difference]: Without dead ends: 5074 [2020-07-17 12:11:54,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 621 GetRequests, 581 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 431 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=342, Invalid=1380, Unknown=0, NotChecked=0, Total=1722 [2020-07-17 12:11:54,274 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5074 states. [2020-07-17 12:11:54,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5074 to 4296. [2020-07-17 12:11:54,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4296 states. [2020-07-17 12:11:54,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4296 states to 4296 states and 4766 transitions. [2020-07-17 12:11:54,354 INFO L78 Accepts]: Start accepts. Automaton has 4296 states and 4766 transitions. Word has length 548 [2020-07-17 12:11:54,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:54,355 INFO L479 AbstractCegarLoop]: Abstraction has 4296 states and 4766 transitions. [2020-07-17 12:11:54,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 12:11:54,355 INFO L276 IsEmpty]: Start isEmpty. Operand 4296 states and 4766 transitions. [2020-07-17 12:11:54,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 675 [2020-07-17 12:11:54,385 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:54,385 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:11:54,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2020-07-17 12:11:54,601 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:11:54,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:11:54,601 INFO L82 PathProgramCache]: Analyzing trace with hash -197580945, now seen corresponding path program 1 times [2020-07-17 12:11:54,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:11:54,602 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967681231] [2020-07-17 12:11:54,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:11:54,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:54,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:54,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:54,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:55,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:55,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:55,636 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 650 proven. 164 refuted. 0 times theorem prover too weak. 834 trivial. 0 not checked. [2020-07-17 12:11:55,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967681231] [2020-07-17 12:11:55,637 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1186844103] [2020-07-17 12:11:55,637 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:11:55,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:11:55,814 INFO L264 TraceCheckSpWp]: Trace formula consists of 1002 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-17 12:11:55,822 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:11:55,868 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-17 12:11:55,868 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:55,869 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:55,896 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:11:56,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1648 backedges. 1151 proven. 2 refuted. 0 times theorem prover too weak. 495 trivial. 0 not checked. [2020-07-17 12:11:56,247 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:11:56,247 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 12 [2020-07-17 12:11:56,247 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1531084701] [2020-07-17 12:11:56,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-17 12:11:56,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:11:56,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-17 12:11:56,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-07-17 12:11:56,249 INFO L87 Difference]: Start difference. First operand 4296 states and 4766 transitions. Second operand 12 states. [2020-07-17 12:11:59,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:11:59,861 INFO L93 Difference]: Finished difference Result 9516 states and 10503 transitions. [2020-07-17 12:11:59,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-17 12:11:59,861 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 674 [2020-07-17 12:11:59,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:11:59,880 INFO L225 Difference]: With dead ends: 9516 [2020-07-17 12:11:59,880 INFO L226 Difference]: Without dead ends: 5226 [2020-07-17 12:11:59,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 726 GetRequests, 697 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 180 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=191, Invalid=679, Unknown=0, NotChecked=0, Total=870 [2020-07-17 12:11:59,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5226 states. [2020-07-17 12:11:59,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5226 to 3754. [2020-07-17 12:11:59,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3754 states. [2020-07-17 12:11:59,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3754 states to 3754 states and 4202 transitions. [2020-07-17 12:11:59,968 INFO L78 Accepts]: Start accepts. Automaton has 3754 states and 4202 transitions. Word has length 674 [2020-07-17 12:11:59,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:11:59,968 INFO L479 AbstractCegarLoop]: Abstraction has 3754 states and 4202 transitions. [2020-07-17 12:11:59,969 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-17 12:11:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 3754 states and 4202 transitions. [2020-07-17 12:11:59,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 708 [2020-07-17 12:11:59,976 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:11:59,977 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:12:00,192 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:00,193 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:00,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:00,193 INFO L82 PathProgramCache]: Analyzing trace with hash 123214354, now seen corresponding path program 1 times [2020-07-17 12:12:00,194 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:00,194 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109678535] [2020-07-17 12:12:00,195 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:00,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:00,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:01,268 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 708 proven. 10 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2020-07-17 12:12:01,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109678535] [2020-07-17 12:12:01,269 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39966207] [2020-07-17 12:12:01,269 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:01,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:01,451 INFO L264 TraceCheckSpWp]: Trace formula consists of 1038 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-17 12:12:01,459 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:01,531 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:12:01,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1655 backedges. 948 proven. 2 refuted. 0 times theorem prover too weak. 705 trivial. 0 not checked. [2020-07-17 12:12:01,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:01,756 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5] total 14 [2020-07-17 12:12:01,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094291785] [2020-07-17 12:12:01,757 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-17 12:12:01,757 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:01,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-17 12:12:01,757 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=148, Unknown=0, NotChecked=0, Total=182 [2020-07-17 12:12:01,758 INFO L87 Difference]: Start difference. First operand 3754 states and 4202 transitions. Second operand 14 states. [2020-07-17 12:12:07,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:07,296 INFO L93 Difference]: Finished difference Result 8173 states and 9123 transitions. [2020-07-17 12:12:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-17 12:12:07,297 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 707 [2020-07-17 12:12:07,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:07,324 INFO L225 Difference]: With dead ends: 8173 [2020-07-17 12:12:07,325 INFO L226 Difference]: Without dead ends: 4367 [2020-07-17 12:12:07,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 781 GetRequests, 739 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 473 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=391, Invalid=1501, Unknown=0, NotChecked=0, Total=1892 [2020-07-17 12:12:07,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4367 states. [2020-07-17 12:12:07,403 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4367 to 4116. [2020-07-17 12:12:07,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4116 states. [2020-07-17 12:12:07,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4116 states to 4116 states and 4497 transitions. [2020-07-17 12:12:07,410 INFO L78 Accepts]: Start accepts. Automaton has 4116 states and 4497 transitions. Word has length 707 [2020-07-17 12:12:07,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:07,410 INFO L479 AbstractCegarLoop]: Abstraction has 4116 states and 4497 transitions. [2020-07-17 12:12:07,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-17 12:12:07,411 INFO L276 IsEmpty]: Start isEmpty. Operand 4116 states and 4497 transitions. [2020-07-17 12:12:07,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 869 [2020-07-17 12:12:07,423 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:07,424 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:12:07,637 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:07,638 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:07,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:07,638 INFO L82 PathProgramCache]: Analyzing trace with hash -337447346, now seen corresponding path program 1 times [2020-07-17 12:12:07,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:07,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905210200] [2020-07-17 12:12:07,639 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:07,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:07,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:07,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:07,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:07,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:08,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:08,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:08,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:08,891 INFO L134 CoverageAnalysis]: Checked inductivity of 2377 backedges. 922 proven. 98 refuted. 0 times theorem prover too weak. 1357 trivial. 0 not checked. [2020-07-17 12:12:08,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905210200] [2020-07-17 12:12:08,891 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [592479647] [2020-07-17 12:12:08,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:09,118 INFO L264 TraceCheckSpWp]: Trace formula consists of 1237 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-17 12:12:09,136 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:09,215 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-17 12:12:10,102 INFO L134 CoverageAnalysis]: Checked inductivity of 2377 backedges. 1349 proven. 2 refuted. 0 times theorem prover too weak. 1026 trivial. 0 not checked. [2020-07-17 12:12:10,103 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:10,103 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 11 [2020-07-17 12:12:10,103 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640608760] [2020-07-17 12:12:10,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:12:10,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:10,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:12:10,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:12:10,105 INFO L87 Difference]: Start difference. First operand 4116 states and 4497 transitions. Second operand 11 states. [2020-07-17 12:12:13,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:13,932 INFO L93 Difference]: Finished difference Result 9344 states and 10315 transitions. [2020-07-17 12:12:13,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-17 12:12:13,933 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 868 [2020-07-17 12:12:13,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:13,946 INFO L225 Difference]: With dead ends: 9344 [2020-07-17 12:12:13,946 INFO L226 Difference]: Without dead ends: 5234 [2020-07-17 12:12:13,953 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 931 GetRequests, 900 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=229, Invalid=701, Unknown=0, NotChecked=0, Total=930 [2020-07-17 12:12:13,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5234 states. [2020-07-17 12:12:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5234 to 5044. [2020-07-17 12:12:14,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5044 states. [2020-07-17 12:12:14,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5044 states to 5044 states and 5510 transitions. [2020-07-17 12:12:14,029 INFO L78 Accepts]: Start accepts. Automaton has 5044 states and 5510 transitions. Word has length 868 [2020-07-17 12:12:14,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:14,030 INFO L479 AbstractCegarLoop]: Abstraction has 5044 states and 5510 transitions. [2020-07-17 12:12:14,030 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:12:14,030 INFO L276 IsEmpty]: Start isEmpty. Operand 5044 states and 5510 transitions. [2020-07-17 12:12:14,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 890 [2020-07-17 12:12:14,043 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:14,044 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 12:12:14,257 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2020-07-17 12:12:14,258 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:14,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:14,258 INFO L82 PathProgramCache]: Analyzing trace with hash -1791623875, now seen corresponding path program 1 times [2020-07-17 12:12:14,259 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:14,259 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285143995] [2020-07-17 12:12:14,259 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:14,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:14,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:15,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 679 proven. 160 refuted. 0 times theorem prover too weak. 1534 trivial. 0 not checked. [2020-07-17 12:12:15,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285143995] [2020-07-17 12:12:15,183 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [112471670] [2020-07-17 12:12:15,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:15,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:15,417 INFO L264 TraceCheckSpWp]: Trace formula consists of 1263 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:12:15,424 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:15,788 INFO L134 CoverageAnalysis]: Checked inductivity of 2373 backedges. 1533 proven. 2 refuted. 0 times theorem prover too weak. 838 trivial. 0 not checked. [2020-07-17 12:12:15,788 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:15,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-17 12:12:15,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807279891] [2020-07-17 12:12:15,790 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-17 12:12:15,790 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:15,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-17 12:12:15,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-17 12:12:15,791 INFO L87 Difference]: Start difference. First operand 5044 states and 5510 transitions. Second operand 11 states. [2020-07-17 12:12:18,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:18,822 INFO L93 Difference]: Finished difference Result 10650 states and 11589 transitions. [2020-07-17 12:12:18,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-17 12:12:18,823 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 889 [2020-07-17 12:12:18,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:18,835 INFO L225 Difference]: With dead ends: 10650 [2020-07-17 12:12:18,835 INFO L226 Difference]: Without dead ends: 5612 [2020-07-17 12:12:18,844 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 944 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 151 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-07-17 12:12:18,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5612 states. [2020-07-17 12:12:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5612 to 4870. [2020-07-17 12:12:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4870 states. [2020-07-17 12:12:18,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4870 states to 4870 states and 5256 transitions. [2020-07-17 12:12:18,921 INFO L78 Accepts]: Start accepts. Automaton has 4870 states and 5256 transitions. Word has length 889 [2020-07-17 12:12:18,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:18,922 INFO L479 AbstractCegarLoop]: Abstraction has 4870 states and 5256 transitions. [2020-07-17 12:12:18,922 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-17 12:12:18,922 INFO L276 IsEmpty]: Start isEmpty. Operand 4870 states and 5256 transitions. [2020-07-17 12:12:18,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 989 [2020-07-17 12:12:18,937 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:18,937 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2020-07-17 12:12:19,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2020-07-17 12:12:19,152 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:19,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:19,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1498565139, now seen corresponding path program 1 times [2020-07-17 12:12:19,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:19,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513080889] [2020-07-17 12:12:19,153 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:19,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:19,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:20,257 INFO L134 CoverageAnalysis]: Checked inductivity of 3002 backedges. 914 proven. 79 refuted. 0 times theorem prover too weak. 2009 trivial. 0 not checked. [2020-07-17 12:12:20,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513080889] [2020-07-17 12:12:20,258 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785046481] [2020-07-17 12:12:20,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:20,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:20,500 INFO L264 TraceCheckSpWp]: Trace formula consists of 1397 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-17 12:12:20,512 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:20,529 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-17 12:12:20,530 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-17 12:12:20,861 INFO L501 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-07-17 12:12:21,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3002 backedges. 1635 proven. 14 refuted. 0 times theorem prover too weak. 1353 trivial. 0 not checked. [2020-07-17 12:12:21,650 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-17 12:12:21,650 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9] total 17 [2020-07-17 12:12:21,651 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763239082] [2020-07-17 12:12:21,652 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-17 12:12:21,652 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:21,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-17 12:12:21,653 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=219, Unknown=0, NotChecked=0, Total=272 [2020-07-17 12:12:21,653 INFO L87 Difference]: Start difference. First operand 4870 states and 5256 transitions. Second operand 17 states. [2020-07-17 12:12:27,283 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2020-07-17 12:12:35,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:35,983 INFO L93 Difference]: Finished difference Result 12694 states and 13769 transitions. [2020-07-17 12:12:35,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-07-17 12:12:35,985 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 988 [2020-07-17 12:12:35,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:36,003 INFO L225 Difference]: With dead ends: 12694 [2020-07-17 12:12:36,003 INFO L226 Difference]: Without dead ends: 7644 [2020-07-17 12:12:36,014 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1099 GetRequests, 1034 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1324 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=717, Invalid=3443, Unknown=0, NotChecked=0, Total=4160 [2020-07-17 12:12:36,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7644 states. [2020-07-17 12:12:36,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7644 to 6712. [2020-07-17 12:12:36,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6712 states. [2020-07-17 12:12:36,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6712 states to 6712 states and 7141 transitions. [2020-07-17 12:12:36,135 INFO L78 Accepts]: Start accepts. Automaton has 6712 states and 7141 transitions. Word has length 988 [2020-07-17 12:12:36,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:36,136 INFO L479 AbstractCegarLoop]: Abstraction has 6712 states and 7141 transitions. [2020-07-17 12:12:36,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-17 12:12:36,137 INFO L276 IsEmpty]: Start isEmpty. Operand 6712 states and 7141 transitions. [2020-07-17 12:12:36,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2020-07-17 12:12:36,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:36,172 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 7, 7, 7, 7, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 12:12:36,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2020-07-17 12:12:36,387 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:36,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:36,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1424361781, now seen corresponding path program 1 times [2020-07-17 12:12:36,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:36,388 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642019221] [2020-07-17 12:12:36,389 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:36,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:36,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:36,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:36,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:36,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:37,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:38,282 INFO L134 CoverageAnalysis]: Checked inductivity of 8705 backedges. 657 proven. 52 refuted. 0 times theorem prover too weak. 7996 trivial. 0 not checked. [2020-07-17 12:12:38,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642019221] [2020-07-17 12:12:38,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671339326] [2020-07-17 12:12:38,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:38,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:38,693 INFO L264 TraceCheckSpWp]: Trace formula consists of 2272 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:12:38,710 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 8705 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 8032 trivial. 0 not checked. [2020-07-17 12:12:40,001 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:12:40,001 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-17 12:12:40,001 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256797601] [2020-07-17 12:12:40,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:12:40,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:40,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:12:40,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:12:40,008 INFO L87 Difference]: Start difference. First operand 6712 states and 7141 transitions. Second operand 3 states. [2020-07-17 12:12:40,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:40,889 INFO L93 Difference]: Finished difference Result 7994 states and 8480 transitions. [2020-07-17 12:12:40,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:12:40,895 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1671 [2020-07-17 12:12:40,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:40,922 INFO L225 Difference]: With dead ends: 7994 [2020-07-17 12:12:40,923 INFO L226 Difference]: Without dead ends: 7992 [2020-07-17 12:12:40,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1705 GetRequests, 1700 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:12:40,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7992 states. [2020-07-17 12:12:41,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7992 to 6530. [2020-07-17 12:12:41,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6530 states. [2020-07-17 12:12:41,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6530 states to 6530 states and 6950 transitions. [2020-07-17 12:12:41,044 INFO L78 Accepts]: Start accepts. Automaton has 6530 states and 6950 transitions. Word has length 1671 [2020-07-17 12:12:41,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:41,046 INFO L479 AbstractCegarLoop]: Abstraction has 6530 states and 6950 transitions. [2020-07-17 12:12:41,046 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:12:41,046 INFO L276 IsEmpty]: Start isEmpty. Operand 6530 states and 6950 transitions. [2020-07-17 12:12:41,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1755 [2020-07-17 12:12:41,084 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 12:12:41,087 INFO L422 BasicCegarLoop]: trace histogram [14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 9, 9, 9, 8, 8, 8, 8, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-17 12:12:41,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:41,301 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 12:12:41,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 12:12:41,301 INFO L82 PathProgramCache]: Analyzing trace with hash -447363904, now seen corresponding path program 1 times [2020-07-17 12:12:41,302 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 12:12:41,302 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430922594] [2020-07-17 12:12:41,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 12:12:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:41,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:42,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:43,182 INFO L134 CoverageAnalysis]: Checked inductivity of 9186 backedges. 657 proven. 85 refuted. 0 times theorem prover too weak. 8444 trivial. 0 not checked. [2020-07-17 12:12:43,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430922594] [2020-07-17 12:12:43,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [892764432] [2020-07-17 12:12:43,182 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-17 12:12:43,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 12:12:43,587 INFO L264 TraceCheckSpWp]: Trace formula consists of 2354 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-17 12:12:43,601 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-17 12:12:44,769 INFO L134 CoverageAnalysis]: Checked inductivity of 9186 backedges. 673 proven. 0 refuted. 0 times theorem prover too weak. 8513 trivial. 0 not checked. [2020-07-17 12:12:44,769 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-17 12:12:44,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 7 [2020-07-17 12:12:44,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716113733] [2020-07-17 12:12:44,771 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 12:12:44,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 12:12:44,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 12:12:44,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:12:44,772 INFO L87 Difference]: Start difference. First operand 6530 states and 6950 transitions. Second operand 3 states. [2020-07-17 12:12:45,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 12:12:45,515 INFO L93 Difference]: Finished difference Result 13416 states and 14269 transitions. [2020-07-17 12:12:45,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 12:12:45,516 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 1754 [2020-07-17 12:12:45,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 12:12:45,517 INFO L225 Difference]: With dead ends: 13416 [2020-07-17 12:12:45,517 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 12:12:45,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1789 GetRequests, 1783 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-17 12:12:45,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 12:12:45,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 12:12:45,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 12:12:45,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 12:12:45,532 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1754 [2020-07-17 12:12:45,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 12:12:45,532 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 12:12:45,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 12:12:45,533 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 12:12:45,533 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 12:12:45,747 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2020-07-17 12:12:45,752 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 12:12:45,961 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 91 [2020-07-17 12:12:46,341 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 89 [2020-07-17 12:12:47,093 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 313 [2020-07-17 12:12:47,690 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 355 DAG size of output: 313 [2020-07-17 12:12:51,395 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 421 DAG size of output: 92 [2020-07-17 12:12:53,554 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 311 DAG size of output: 77 [2020-07-17 12:12:55,674 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 311 DAG size of output: 77 [2020-07-17 12:12:55,678 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:12:55,679 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a24~0 |old(~a24~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-07-17 12:12:55,679 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:12:55,679 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-07-17 12:12:55,679 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-07-17 12:12:55,680 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-07-17 12:12:55,681 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-07-17 12:12:55,682 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-17 12:12:55,683 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-07-17 12:12:55,684 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,685 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-07-17 12:12:55,686 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-07-17 12:12:55,687 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-07-17 12:12:55,688 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-17 12:12:55,689 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-17 12:12:55,689 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-17 12:12:55,689 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-07-17 12:12:55,689 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse13 (= ~a21~0 |old(~a21~0)|)) (.cse14 (= 1 |old(~a24~0)|)) (.cse9 (= ~a12~0 |old(~a12~0)|)) (.cse10 (= 1 ~a24~0)) (.cse11 (= ~a15~0 |old(~a15~0)|))) (let ((.cse1 (and .cse9 .cse10 .cse11 (= 8 ~a21~0))) (.cse2 (not (= 8 |old(~a21~0)|))) (.cse7 (not (<= 7 |old(~a15~0)|))) (.cse0 (not .cse14)) (.cse4 (not (= 10 |old(~a21~0)|))) (.cse6 (and .cse9 .cse10 .cse13 .cse11)) (.cse3 (not (<= |old(~a12~0)| 80))) (.cse12 (= 7 |old(~a21~0)|)) (.cse5 (not (<= |old(~a15~0)| 5))) (.cse8 (not (<= |old(~a21~0)| 7)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse0 .cse4 (forall ((v_~a12~0_449 Int)) (or (not (<= v_~a12~0_449 80)) (not (<= |old(~a12~0)| (div (+ v_~a12~0_449 366333) 5))) (not (< 11 v_~a12~0_449)) (not (= 0 (mod (+ v_~a12~0_449 3) 5))))) .cse5 .cse6) (or .cse0 .cse4 .cse7 .cse6) (or .cse0 (= 5 |old(~a15~0)|) .cse8 .cse6) (or .cse0 (and .cse9 .cse10 (= 9 ~a21~0) .cse11) (not (= 9 |old(~a21~0)|))) (or .cse0 .cse1 .cse2 .cse7) (or .cse0 (not (= 6 |old(~a21~0)|)) .cse6) (or (not .cse12) .cse0 (not (<= |old(~a12~0)| 76)) (not (< 22 |old(~a12~0)|)) .cse6) (or .cse0 .cse4 .cse6 .cse3) (or (and .cse9 (= ~a24~0 |old(~a24~0)|) .cse13 .cse11) (not (<= (+ |old(~a12~0)| 49) 0)) (and .cse12 .cse14) .cse5 .cse8)))) [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-07-17 12:12:55,690 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-07-17 12:12:55,691 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-07-17 12:12:55,692 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-07-17 12:12:55,693 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-07-17 12:12:55,694 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 154) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-07-17 12:12:55,695 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-07-17 12:12:55,696 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-07-17 12:12:55,697 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-07-17 12:12:55,698 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-07-17 12:12:55,699 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-17 12:12:55,700 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-07-17 12:12:55,701 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-07-17 12:12:55,702 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-07-17 12:12:55,703 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-07-17 12:12:55,704 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-17 12:12:55,704 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-17 12:12:55,704 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-17 12:12:55,704 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-07-17 12:12:55,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 12:12:55,704 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= (+ ~a12~0 49) 0) (= 7 ~a21~0) (<= ~a15~0 8) (= 1 ~a24~0) (<= 8 ~a15~0)) [2020-07-17 12:12:55,704 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 12:12:55,704 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 12:12:55,705 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (not (= 7 |old(~a21~0)|)) (not (= 1 |old(~a24~0)|)) (and (= ~a12~0 |old(~a12~0)|) (= 7 ~a21~0) (= 1 ~a24~0) (= ~a15~0 |old(~a15~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (not (<= |old(~a15~0)| 8)) (not (<= 8 |old(~a15~0)|))) [2020-07-17 12:12:55,705 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-07-17 12:12:55,705 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse1 (<= ~a12~0 80)) (.cse3 (<= ~a21~0 7)) (.cse7 (= 7 ~a21~0)) (.cse5 (<= 7 ~a15~0)) (.cse2 (= 8 ~a21~0)) (.cse6 (<= ~a15~0 5)) (.cse4 (= 10 ~a21~0)) (.cse0 (= 1 ~a24~0))) (or (and .cse0 .cse1 .cse2) (not (= 1 |old(~a24~0)|)) (and (not (= 5 ~a15~0)) .cse0 .cse3) (and .cse4 .cse0 .cse1) (and .cse5 .cse4 .cse0) (and .cse0 (= 9 ~a21~0)) (not (<= |old(~a15~0)| 8)) (and (<= (+ ~a12~0 49) 0) .cse6 (or (not .cse7) (not .cse0)) .cse3) (and (= 6 ~a21~0) .cse0) (not (= 7 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 76) (< 22 ~a12~0) .cse7 .cse0) (and .cse5 .cse0 .cse2) (not (<= 8 |old(~a15~0)|)) (and .cse6 .cse4 .cse0 (exists ((v_~a12~0_449 Int)) (and (< 11 v_~a12~0_449) (<= v_~a12~0_449 80) (= 0 (mod (+ v_~a12~0_449 3) 5)) (<= ~a12~0 (div (+ v_~a12~0_449 366333) 5))))))) [2020-07-17 12:12:55,705 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-07-17 12:12:55,705 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-07-17 12:12:55,706 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse1 (<= ~a12~0 80)) (.cse3 (<= ~a21~0 7)) (.cse7 (= 7 ~a21~0)) (.cse5 (<= 7 ~a15~0)) (.cse2 (= 8 ~a21~0)) (.cse6 (<= ~a15~0 5)) (.cse4 (= 10 ~a21~0)) (.cse0 (= 1 ~a24~0))) (or (and .cse0 .cse1 .cse2) (not (= 1 |old(~a24~0)|)) (and (not (= 5 ~a15~0)) .cse0 .cse3) (and .cse4 .cse0 .cse1) (and .cse5 .cse4 .cse0) (and .cse0 (= 9 ~a21~0)) (not (<= |old(~a15~0)| 8)) (and (<= (+ ~a12~0 49) 0) .cse6 (or (not .cse7) (not .cse0)) .cse3) (and (= 6 ~a21~0) .cse0) (not (= 7 |old(~a21~0)|)) (not (<= (+ |old(~a12~0)| 49) 0)) (and (<= ~a12~0 76) (< 22 ~a12~0) .cse7 .cse0) (and .cse5 .cse0 .cse2) (not (<= 8 |old(~a15~0)|)) (and .cse6 .cse4 .cse0 (exists ((v_~a12~0_449 Int)) (and (< 11 v_~a12~0_449) (<= v_~a12~0_449 80) (= 0 (mod (+ v_~a12~0_449 3) 5)) (<= ~a12~0 (div (+ v_~a12~0_449 366333) 5))))))) [2020-07-17 12:12:55,706 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-07-17 12:12:55,718 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,719 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,727 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,728 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,731 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 12:12:55 BoogieIcfgContainer [2020-07-17 12:12:55,731 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 12:12:55,732 INFO L168 Benchmark]: Toolchain (without parser) took 102296.38 ms. Allocated memory was 143.7 MB in the beginning and 2.2 GB in the end (delta: 2.1 GB). Free memory was 98.4 MB in the beginning and 502.1 MB in the end (delta: -403.8 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-17 12:12:55,733 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 143.7 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-17 12:12:55,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 872.18 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 97.9 MB in the beginning and 168.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-17 12:12:55,734 INFO L168 Benchmark]: Boogie Preprocessor took 144.02 ms. Allocated memory is still 205.5 MB. Free memory was 168.9 MB in the beginning and 163.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-07-17 12:12:55,735 INFO L168 Benchmark]: RCFGBuilder took 1293.74 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 163.0 MB in the beginning and 157.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. [2020-07-17 12:12:55,735 INFO L168 Benchmark]: TraceAbstraction took 99980.46 ms. Allocated memory was 234.9 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 157.1 MB in the beginning and 502.1 MB in the end (delta: -345.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. [2020-07-17 12:12:55,737 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 143.7 MB. Free memory was 118.6 MB in the beginning and 118.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 872.18 ms. Allocated memory was 143.7 MB in the beginning and 205.5 MB in the end (delta: 61.9 MB). Free memory was 97.9 MB in the beginning and 168.9 MB in the end (delta: -71.0 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 144.02 ms. Allocated memory is still 205.5 MB. Free memory was 168.9 MB in the beginning and 163.0 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1293.74 ms. Allocated memory was 205.5 MB in the beginning and 234.9 MB in the end (delta: 29.4 MB). Free memory was 163.0 MB in the beginning and 157.1 MB in the end (delta: 5.9 MB). Peak memory consumption was 83.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 99980.46 ms. Allocated memory was 234.9 MB in the beginning and 2.2 GB in the end (delta: 2.0 GB). Free memory was 157.1 MB in the beginning and 502.1 MB in the end (delta: -345.1 MB). Peak memory consumption was 1.9 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 154]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 880]: Loop Invariant [2020-07-17 12:12:55,743 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,744 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,745 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] [2020-07-17 12:12:55,746 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a12~0_449,QUANTIFIED] Derived loop invariant: (((((((((((((((1 == a24 && a12 <= 80) && 8 == a21) || !(1 == \old(a24))) || ((!(5 == a15) && 1 == a24) && a21 <= 7)) || ((10 == a21 && 1 == a24) && a12 <= 80)) || ((7 <= a15 && 10 == a21) && 1 == a24)) || (1 == a24 && 9 == a21)) || !(\old(a15) <= 8)) || (((a12 + 49 <= 0 && a15 <= 5) && (!(7 == a21) || !(1 == a24))) && a21 <= 7)) || (6 == a21 && 1 == a24)) || !(7 == \old(a21))) || !(\old(a12) + 49 <= 0)) || (((a12 <= 76 && 22 < a12) && 7 == a21) && 1 == a24)) || ((7 <= a15 && 1 == a24) && 8 == a21)) || !(8 <= \old(a15))) || (((a15 <= 5 && 10 == a21) && 1 == a24) && (\exists v_~a12~0_449 : int :: ((11 < v_~a12~0_449 && v_~a12~0_449 <= 80) && 0 == (v_~a12~0_449 + 3) % 5) && a12 <= (v_~a12~0_449 + 366333) / 5)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 89.9s, OverallIterations: 17, TraceHistogramMax: 14, AutomataDifference: 61.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 9.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 819 SDtfs, 25725 SDslu, 1129 SDs, 0 SdLazy, 31898 SolverSat, 4549 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 37.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10626 GetRequests, 10219 SyntacticMatches, 6 SemanticMatches, 401 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4095 ImplicationChecksByTransitivity, 12.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6712occurred in iteration=15, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 17 MinimizatonAttempts, 7549 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 280 PreInvPairs, 366 NumberOfFragments, 685 HoareAnnotationTreeSize, 280 FomulaSimplifications, 26567698 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1142808 FormulaSimplificationTreeSizeReductionInter, 7.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 13.5s InterpolantComputationTime, 19989 NumberOfCodeBlocks, 19989 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 19957 ConstructedInterpolants, 10 QuantifiedInterpolants, 35276159 SizeOfPredicates, 20 NumberOfNonLiveVariables, 14498 ConjunctsInSsa, 136 ConjunctsInUnsatCore, 32 InterpolantComputations, 8 PerfectInterpolantSequences, 62624/63693 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...