/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:27:52,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:27:52,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:27:52,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 17:27:52,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 17:27:52,985 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 17:27:52,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 17:27:52,988 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 17:27:52,989 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 17:27:52,990 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 17:27:52,991 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 17:27:52,992 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 17:27:52,992 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:27:52,993 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:27:52,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:27:52,995 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:27:52,996 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:27:52,997 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:27:52,999 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:27:53,000 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:27:53,002 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:27:53,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:27:53,004 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:27:53,005 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:27:53,012 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 17:27:53,013 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 17:27:53,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 17:27:53,014 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 17:27:53,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 17:27:53,016 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 17:27:53,016 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 17:27:53,017 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 17:27:53,017 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 17:27:53,018 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 17:27:53,019 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 17:27:53,019 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 17:27:53,020 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 17:27:53,020 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 17:27:53,020 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:27:53,021 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:27:53,022 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:27:53,022 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 [2020-07-20 17:27:53,036 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:27:53,036 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:27:53,038 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:27:53,038 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:27:53,038 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:27:53,038 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:27:53,038 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:27:53,039 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:27:53,039 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:27:53,039 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:27:53,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:27:53,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:27:53,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:27:53,040 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:27:53,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:27:53,040 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:27:53,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:27:53,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:27:53,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:27:53,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:27:53,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:27:53,041 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:27:53,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:27:53,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:27:53,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:27:53,042 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:27:53,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:53,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:27:53,043 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:27:53,043 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:27:53,316 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:27:53,328 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:27:53,332 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:27:53,333 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:27:53,333 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:27:53,334 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-20 17:27:53,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c445ee7d/aa43b6ec13394040b1218d2aa5431765/FLAGde460de4e [2020-07-20 17:27:53,910 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:27:53,911 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label40.c [2020-07-20 17:27:53,930 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c445ee7d/aa43b6ec13394040b1218d2aa5431765/FLAGde460de4e [2020-07-20 17:27:54,178 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2c445ee7d/aa43b6ec13394040b1218d2aa5431765 [2020-07-20 17:27:54,189 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:27:54,193 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:27:54,197 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:54,197 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:27:54,201 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:27:54,202 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:54,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39eaf402 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54, skipping insertion in model container [2020-07-20 17:27:54,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:54,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:27:54,279 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:27:54,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:54,743 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:27:54,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:27:54,964 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:27:54,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54 WrapperNode [2020-07-20 17:27:54,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:27:54,965 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:27:54,965 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:27:54,965 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:27:54,982 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:54,983 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:55,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:55,011 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:55,057 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:55,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:55,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (1/1) ... [2020-07-20 17:27:55,105 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:27:55,106 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:27:55,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:27:55,107 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:27:55,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (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 [2020-07-20 17:27:55,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:27:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:27:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:27:55,188 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:27:55,188 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:27:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:27:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:27:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:27:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:27:55,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:27:55,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:27:56,370 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:27:56,371 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:27:56,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:56 BoogieIcfgContainer [2020-07-20 17:27:56,380 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:27:56,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:27:56,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:27:56,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:27:56,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:27:54" (1/3) ... [2020-07-20 17:27:56,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15aa932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:56, skipping insertion in model container [2020-07-20 17:27:56,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:27:54" (2/3) ... [2020-07-20 17:27:56,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15aa932 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:27:56, skipping insertion in model container [2020-07-20 17:27:56,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:27:56" (3/3) ... [2020-07-20 17:27:56,390 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label40.c [2020-07-20 17:27:56,402 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:27:56,413 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:27:56,426 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:27:56,456 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:27:56,457 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:27:56,457 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:27:56,457 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:27:56,458 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:27:56,458 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:27:56,458 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:27:56,458 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:27:56,486 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:27:56,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2020-07-20 17:27:56,502 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:56,503 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:56,503 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:56,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:56,511 INFO L82 PathProgramCache]: Analyzing trace with hash -1033095319, now seen corresponding path program 1 times [2020-07-20 17:27:56,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:56,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1333941709] [2020-07-20 17:27:56,519 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:56,735 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:56,736 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:56,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:27:56,757 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:56,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:56,867 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:56,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1333941709] [2020-07-20 17:27:56,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:56,870 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:56,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912420814] [2020-07-20 17:27:56,878 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:56,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:56,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:56,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:56,896 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:27:57,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:57,763 INFO L93 Difference]: Finished difference Result 649 states and 1093 transitions. [2020-07-20 17:27:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:57,765 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 95 [2020-07-20 17:27:57,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:57,781 INFO L225 Difference]: With dead ends: 649 [2020-07-20 17:27:57,782 INFO L226 Difference]: Without dead ends: 330 [2020-07-20 17:27:57,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:57,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states. [2020-07-20 17:27:57,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 330. [2020-07-20 17:27:57,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 330 states. [2020-07-20 17:27:57,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 330 states to 330 states and 481 transitions. [2020-07-20 17:27:57,862 INFO L78 Accepts]: Start accepts. Automaton has 330 states and 481 transitions. Word has length 95 [2020-07-20 17:27:57,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:57,863 INFO L479 AbstractCegarLoop]: Abstraction has 330 states and 481 transitions. [2020-07-20 17:27:57,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:57,864 INFO L276 IsEmpty]: Start isEmpty. Operand 330 states and 481 transitions. [2020-07-20 17:27:57,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-07-20 17:27:57,869 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:57,869 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:27:58,073 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:58,074 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:58,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:58,075 INFO L82 PathProgramCache]: Analyzing trace with hash -377311506, now seen corresponding path program 1 times [2020-07-20 17:27:58,076 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:58,076 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1719606644] [2020-07-20 17:27:58,076 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:58,174 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:58,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:58,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:27:58,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:58,217 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:58,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1719606644] [2020-07-20 17:27:58,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:58,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:58,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978384747] [2020-07-20 17:27:58,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:58,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:58,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:58,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:58,222 INFO L87 Difference]: Start difference. First operand 330 states and 481 transitions. Second operand 3 states. [2020-07-20 17:27:58,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:58,825 INFO L93 Difference]: Finished difference Result 948 states and 1400 transitions. [2020-07-20 17:27:58,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:58,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-07-20 17:27:58,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:58,832 INFO L225 Difference]: With dead ends: 948 [2020-07-20 17:27:58,832 INFO L226 Difference]: Without dead ends: 624 [2020-07-20 17:27:58,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:58,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states. [2020-07-20 17:27:58,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 622. [2020-07-20 17:27:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 622 states. [2020-07-20 17:27:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 622 states to 622 states and 877 transitions. [2020-07-20 17:27:58,873 INFO L78 Accepts]: Start accepts. Automaton has 622 states and 877 transitions. Word has length 103 [2020-07-20 17:27:58,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:58,874 INFO L479 AbstractCegarLoop]: Abstraction has 622 states and 877 transitions. [2020-07-20 17:27:58,874 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:58,874 INFO L276 IsEmpty]: Start isEmpty. Operand 622 states and 877 transitions. [2020-07-20 17:27:58,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2020-07-20 17:27:58,879 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:58,879 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-20 17:27:59,094 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:59,095 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:27:59,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:27:59,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1456059206, now seen corresponding path program 1 times [2020-07-20 17:27:59,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:27:59,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1584901649] [2020-07-20 17:27:59,096 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:27:59,179 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:27:59,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:27:59,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:27:59,184 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:27:59,222 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:27:59,222 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:27:59,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1584901649] [2020-07-20 17:27:59,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:27:59,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:27:59,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020714091] [2020-07-20 17:27:59,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:27:59,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:27:59,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:27:59,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:59,225 INFO L87 Difference]: Start difference. First operand 622 states and 877 transitions. Second operand 3 states. [2020-07-20 17:27:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:27:59,830 INFO L93 Difference]: Finished difference Result 1815 states and 2610 transitions. [2020-07-20 17:27:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:27:59,831 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 109 [2020-07-20 17:27:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:27:59,838 INFO L225 Difference]: With dead ends: 1815 [2020-07-20 17:27:59,839 INFO L226 Difference]: Without dead ends: 1199 [2020-07-20 17:27:59,841 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 107 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:27:59,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1199 states. [2020-07-20 17:27:59,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1199 to 1199. [2020-07-20 17:27:59,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1199 states. [2020-07-20 17:27:59,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1199 states to 1199 states and 1577 transitions. [2020-07-20 17:27:59,897 INFO L78 Accepts]: Start accepts. Automaton has 1199 states and 1577 transitions. Word has length 109 [2020-07-20 17:27:59,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:27:59,898 INFO L479 AbstractCegarLoop]: Abstraction has 1199 states and 1577 transitions. [2020-07-20 17:27:59,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:27:59,898 INFO L276 IsEmpty]: Start isEmpty. Operand 1199 states and 1577 transitions. [2020-07-20 17:27:59,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-20 17:27:59,905 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:27:59,905 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2020-07-20 17:28:00,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:00,121 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:00,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:00,122 INFO L82 PathProgramCache]: Analyzing trace with hash 549151607, now seen corresponding path program 1 times [2020-07-20 17:28:00,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:00,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [903385474] [2020-07-20 17:28:00,124 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:00,213 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:00,213 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:00,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:00,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:00,296 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:00,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:00,389 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:00,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [903385474] [2020-07-20 17:28:00,390 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:00,390 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:00,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049960884] [2020-07-20 17:28:00,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:00,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:00,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:00,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:00,396 INFO L87 Difference]: Start difference. First operand 1199 states and 1577 transitions. Second operand 7 states. [2020-07-20 17:28:00,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:00,979 INFO L93 Difference]: Finished difference Result 2399 states and 3194 transitions. [2020-07-20 17:28:00,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 17:28:00,980 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-07-20 17:28:00,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:00,990 INFO L225 Difference]: With dead ends: 2399 [2020-07-20 17:28:00,990 INFO L226 Difference]: Without dead ends: 1206 [2020-07-20 17:28:00,993 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 220 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:28:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-07-20 17:28:01,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1188. [2020-07-20 17:28:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1188 states. [2020-07-20 17:28:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1188 states to 1188 states and 1536 transitions. [2020-07-20 17:28:01,049 INFO L78 Accepts]: Start accepts. Automaton has 1188 states and 1536 transitions. Word has length 113 [2020-07-20 17:28:01,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:01,050 INFO L479 AbstractCegarLoop]: Abstraction has 1188 states and 1536 transitions. [2020-07-20 17:28:01,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:01,050 INFO L276 IsEmpty]: Start isEmpty. Operand 1188 states and 1536 transitions. [2020-07-20 17:28:01,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-20 17:28:01,055 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:01,056 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:01,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:01,269 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:01,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:01,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1133854759, now seen corresponding path program 1 times [2020-07-20 17:28:01,269 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:01,270 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [416351949] [2020-07-20 17:28:01,270 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:01,356 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:01,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:01,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:01,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:01,393 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:01,393 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [416351949] [2020-07-20 17:28:01,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:01,394 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:01,394 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48421327] [2020-07-20 17:28:01,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:01,395 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:01,395 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:01,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:01,396 INFO L87 Difference]: Start difference. First operand 1188 states and 1536 transitions. Second operand 3 states. [2020-07-20 17:28:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:02,000 INFO L93 Difference]: Finished difference Result 2946 states and 3832 transitions. [2020-07-20 17:28:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:02,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-07-20 17:28:02,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:02,007 INFO L225 Difference]: With dead ends: 2946 [2020-07-20 17:28:02,008 INFO L226 Difference]: Without dead ends: 1183 [2020-07-20 17:28:02,012 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:02,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2020-07-20 17:28:02,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2020-07-20 17:28:02,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1183 states. [2020-07-20 17:28:02,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1477 transitions. [2020-07-20 17:28:02,046 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1477 transitions. Word has length 121 [2020-07-20 17:28:02,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:02,046 INFO L479 AbstractCegarLoop]: Abstraction has 1183 states and 1477 transitions. [2020-07-20 17:28:02,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:02,047 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1477 transitions. [2020-07-20 17:28:02,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 17:28:02,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:02,050 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:02,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:02,266 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:02,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:02,267 INFO L82 PathProgramCache]: Analyzing trace with hash 1118081225, now seen corresponding path program 1 times [2020-07-20 17:28:02,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:02,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1482576094] [2020-07-20 17:28:02,268 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:02,359 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:02,359 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:02,360 INFO L263 TraceCheckSpWp]: Trace formula consists of 373 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:02,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:02,399 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:02,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:02,453 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:02,454 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1482576094] [2020-07-20 17:28:02,454 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:02,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:02,455 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350126760] [2020-07-20 17:28:02,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:02,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:02,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:02,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:02,456 INFO L87 Difference]: Start difference. First operand 1183 states and 1477 transitions. Second operand 6 states. [2020-07-20 17:28:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:03,199 INFO L93 Difference]: Finished difference Result 3014 states and 3913 transitions. [2020-07-20 17:28:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:28:03,200 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 123 [2020-07-20 17:28:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:03,210 INFO L225 Difference]: With dead ends: 3014 [2020-07-20 17:28:03,210 INFO L226 Difference]: Without dead ends: 1837 [2020-07-20 17:28:03,213 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 240 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:03,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1837 states. [2020-07-20 17:28:03,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1837 to 1801. [2020-07-20 17:28:03,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1801 states. [2020-07-20 17:28:03,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1801 states to 1801 states and 2139 transitions. [2020-07-20 17:28:03,261 INFO L78 Accepts]: Start accepts. Automaton has 1801 states and 2139 transitions. Word has length 123 [2020-07-20 17:28:03,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:03,261 INFO L479 AbstractCegarLoop]: Abstraction has 1801 states and 2139 transitions. [2020-07-20 17:28:03,261 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:03,261 INFO L276 IsEmpty]: Start isEmpty. Operand 1801 states and 2139 transitions. [2020-07-20 17:28:03,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 17:28:03,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:03,266 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:03,480 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:03,481 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:03,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:03,482 INFO L82 PathProgramCache]: Analyzing trace with hash 1954430686, now seen corresponding path program 1 times [2020-07-20 17:28:03,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:03,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1027292927] [2020-07-20 17:28:03,484 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:03,579 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:03,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:03,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 433 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:03,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:03,622 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:03,687 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:03,687 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1027292927] [2020-07-20 17:28:03,687 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:03,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:03,688 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524053723] [2020-07-20 17:28:03,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:03,689 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:03,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:03,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:03,689 INFO L87 Difference]: Start difference. First operand 1801 states and 2139 transitions. Second operand 7 states. [2020-07-20 17:28:04,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:04,475 INFO L93 Difference]: Finished difference Result 5001 states and 6097 transitions. [2020-07-20 17:28:04,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:04,476 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 139 [2020-07-20 17:28:04,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:04,491 INFO L225 Difference]: With dead ends: 5001 [2020-07-20 17:28:04,491 INFO L226 Difference]: Without dead ends: 3206 [2020-07-20 17:28:04,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 273 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:04,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2020-07-20 17:28:04,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 3154. [2020-07-20 17:28:04,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3154 states. [2020-07-20 17:28:04,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3154 states to 3154 states and 3769 transitions. [2020-07-20 17:28:04,578 INFO L78 Accepts]: Start accepts. Automaton has 3154 states and 3769 transitions. Word has length 139 [2020-07-20 17:28:04,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:04,579 INFO L479 AbstractCegarLoop]: Abstraction has 3154 states and 3769 transitions. [2020-07-20 17:28:04,579 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:04,579 INFO L276 IsEmpty]: Start isEmpty. Operand 3154 states and 3769 transitions. [2020-07-20 17:28:04,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-07-20 17:28:04,586 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:04,586 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:04,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:04,801 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:04,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:04,801 INFO L82 PathProgramCache]: Analyzing trace with hash 2021068016, now seen corresponding path program 1 times [2020-07-20 17:28:04,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:04,802 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [541875118] [2020-07-20 17:28:04,802 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:04,893 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:04,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:04,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:04,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:04,933 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 39 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-07-20 17:28:04,934 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:04,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [541875118] [2020-07-20 17:28:04,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:04,935 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:04,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898067699] [2020-07-20 17:28:04,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:04,935 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:04,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:04,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:04,936 INFO L87 Difference]: Start difference. First operand 3154 states and 3769 transitions. Second operand 3 states. [2020-07-20 17:28:05,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:05,467 INFO L93 Difference]: Finished difference Result 6888 states and 8252 transitions. [2020-07-20 17:28:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:05,472 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 139 [2020-07-20 17:28:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:05,489 INFO L225 Difference]: With dead ends: 6888 [2020-07-20 17:28:05,489 INFO L226 Difference]: Without dead ends: 3884 [2020-07-20 17:28:05,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:05,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3884 states. [2020-07-20 17:28:05,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3884 to 3882. [2020-07-20 17:28:05,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3882 states. [2020-07-20 17:28:05,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3882 states to 3882 states and 4651 transitions. [2020-07-20 17:28:05,590 INFO L78 Accepts]: Start accepts. Automaton has 3882 states and 4651 transitions. Word has length 139 [2020-07-20 17:28:05,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:05,591 INFO L479 AbstractCegarLoop]: Abstraction has 3882 states and 4651 transitions. [2020-07-20 17:28:05,591 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:05,591 INFO L276 IsEmpty]: Start isEmpty. Operand 3882 states and 4651 transitions. [2020-07-20 17:28:05,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-07-20 17:28:05,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:05,600 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:05,814 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:05,815 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:05,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:05,815 INFO L82 PathProgramCache]: Analyzing trace with hash 979862262, now seen corresponding path program 1 times [2020-07-20 17:28:05,815 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:05,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [905510354] [2020-07-20 17:28:05,817 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:05,948 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:05,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:05,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:28:05,953 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 17:28:05,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:05,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [905510354] [2020-07-20 17:28:05,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:05,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:28:05,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261343825] [2020-07-20 17:28:05,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:28:05,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:05,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:28:05,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:05,986 INFO L87 Difference]: Start difference. First operand 3882 states and 4651 transitions. Second operand 5 states. [2020-07-20 17:28:06,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:06,653 INFO L93 Difference]: Finished difference Result 7692 states and 9405 transitions. [2020-07-20 17:28:06,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 17:28:06,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 141 [2020-07-20 17:28:06,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:06,671 INFO L225 Difference]: With dead ends: 7692 [2020-07-20 17:28:06,672 INFO L226 Difference]: Without dead ends: 3960 [2020-07-20 17:28:06,681 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:06,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3960 states. [2020-07-20 17:28:06,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3960 to 3468. [2020-07-20 17:28:06,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3468 states. [2020-07-20 17:28:06,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3468 states to 3468 states and 3910 transitions. [2020-07-20 17:28:06,774 INFO L78 Accepts]: Start accepts. Automaton has 3468 states and 3910 transitions. Word has length 141 [2020-07-20 17:28:06,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:06,774 INFO L479 AbstractCegarLoop]: Abstraction has 3468 states and 3910 transitions. [2020-07-20 17:28:06,774 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:28:06,775 INFO L276 IsEmpty]: Start isEmpty. Operand 3468 states and 3910 transitions. [2020-07-20 17:28:06,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 17:28:06,783 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:06,783 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 17:28:06,996 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:06,997 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:06,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:06,997 INFO L82 PathProgramCache]: Analyzing trace with hash -27567672, now seen corresponding path program 1 times [2020-07-20 17:28:06,997 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:06,998 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1186330575] [2020-07-20 17:28:06,998 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:07,100 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:07,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:07,102 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:07,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:07,192 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 74 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 17:28:07,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:07,265 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 71 proven. 28 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 17:28:07,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1186330575] [2020-07-20 17:28:07,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:07,266 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:07,266 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945847576] [2020-07-20 17:28:07,266 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:07,267 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:07,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:07,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:07,267 INFO L87 Difference]: Start difference. First operand 3468 states and 3910 transitions. Second operand 6 states. [2020-07-20 17:28:07,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:07,952 INFO L93 Difference]: Finished difference Result 7145 states and 8214 transitions. [2020-07-20 17:28:07,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:07,953 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 164 [2020-07-20 17:28:07,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:07,967 INFO L225 Difference]: With dead ends: 7145 [2020-07-20 17:28:07,967 INFO L226 Difference]: Without dead ends: 3829 [2020-07-20 17:28:07,975 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:07,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3829 states. [2020-07-20 17:28:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3829 to 3765. [2020-07-20 17:28:08,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3765 states. [2020-07-20 17:28:08,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 4238 transitions. [2020-07-20 17:28:08,067 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 4238 transitions. Word has length 164 [2020-07-20 17:28:08,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:08,068 INFO L479 AbstractCegarLoop]: Abstraction has 3765 states and 4238 transitions. [2020-07-20 17:28:08,068 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:08,068 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 4238 transitions. [2020-07-20 17:28:08,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-07-20 17:28:08,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:08,080 INFO L422 BasicCegarLoop]: trace histogram [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, 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] [2020-07-20 17:28:08,293 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:08,294 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:08,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:08,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1100298320, now seen corresponding path program 1 times [2020-07-20 17:28:08,295 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:08,295 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [199887440] [2020-07-20 17:28:08,295 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:08,403 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:08,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:08,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 466 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:28:08,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:08,444 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-07-20 17:28:08,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:08,551 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 79 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-07-20 17:28:08,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [199887440] [2020-07-20 17:28:08,552 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:08,552 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:08,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [9076167] [2020-07-20 17:28:08,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:08,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:08,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:08,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:08,554 INFO L87 Difference]: Start difference. First operand 3765 states and 4238 transitions. Second operand 7 states. [2020-07-20 17:28:09,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:09,808 INFO L93 Difference]: Finished difference Result 7453 states and 8585 transitions. [2020-07-20 17:28:09,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:28:09,809 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 168 [2020-07-20 17:28:09,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:09,810 INFO L225 Difference]: With dead ends: 7453 [2020-07-20 17:28:09,811 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:28:09,829 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 332 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:09,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:28:09,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:28:09,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:28:09,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:28:09,830 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 168 [2020-07-20 17:28:09,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:09,831 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:28:09,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:09,831 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:28:09,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:28:10,045 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:10,048 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:28:10,692 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 156 [2020-07-20 17:28:10,893 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 156 [2020-07-20 17:28:11,954 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2020-07-20 17:28:12,560 WARN L193 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-07-20 17:28:13,205 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 49 [2020-07-20 17:28:13,209 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:13,210 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) [2020-07-20 17:28:13,210 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:13,210 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,210 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,210 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,211 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,211 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,211 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:28:13,213 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:28:13,213 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:28:13,213 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:28:13,214 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:28:13,214 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:28:13,214 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:28:13,214 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:28:13,214 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,215 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:28:13,216 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:28:13,217 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,218 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 439) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:28:13,219 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,220 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:28:13,221 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,222 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:28:13,223 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,224 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:28:13,225 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:28:13,226 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:28:13,227 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:28:13,228 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:28:13,229 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:28:13,230 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:28:13,231 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:28:13,231 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,231 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,231 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,231 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse10 (= 1 |old(~a19~0)|)) (.cse9 (<= 9 ~a28~0)) (.cse17 (= 1 ~a25~0)) (.cse14 (<= ~a28~0 |old(~a28~0)|)) (.cse15 (<= ~a17~0 8)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse18 (= ~a25~0 |old(~a25~0)|))) (let ((.cse6 (and .cse14 .cse15 .cse16 .cse18)) (.cse1 (not (<= |old(~a28~0)| 9))) (.cse2 (not (<= |old(~a25~0)| 0))) (.cse13 (and .cse14 .cse15 .cse16 .cse9 .cse17)) (.cse11 (not (<= |old(~a28~0)| 10))) (.cse4 (not .cse10)) (.cse12 (<= ~a11~0 0)) (.cse5 (not (= 1 |old(~a25~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse7 (not (<= |old(~a11~0)| 0))) (.cse0 (not (<= 9 |old(~a28~0)|))) (.cse8 (not (<= |old(~a17~0)| 7)))) (and (or .cse0 .cse1 .cse2 (<= ~a28~0 9) .cse3) (or .cse4 (not (<= 8 |old(~a28~0)|)) (<= 8 ~a28~0) .cse5 .cse3) (or .cse1 .cse2 .cse6 .cse3 .cse7) (or .cse0 .cse8 .cse9) (or .cse10 .cse1 .cse2 .cse6 .cse3) (or .cse11 .cse12 .cse0 .cse5 .cse3 .cse7) (or .cse0 .cse1 .cse2 .cse3 .cse9) (or .cse4 .cse13 .cse0 .cse5 .cse3) (or .cse4 .cse5 (and .cse14 .cse15 .cse16 .cse17) .cse3) (or .cse4 .cse11 .cse12 .cse2 .cse3 .cse7) (or (<= ~a17~0 |old(~a17~0)|) .cse8) (or .cse10 .cse12 .cse0 .cse8 .cse7) (or .cse12 .cse1 .cse2 .cse3 .cse7) (or .cse4 (and .cse15 (<= ~a28~0 10) .cse16 .cse9 .cse18) .cse11 .cse0 .cse2 .cse3) (or .cse13 .cse11 .cse0 .cse5 .cse3) (or .cse4 .cse12 .cse5 .cse3 .cse7) (or .cse10 .cse0 .cse8 (not (= 1 ~a19~0)))))) [2020-07-20 17:28:13,231 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:28:13,232 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,233 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:28:13,234 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:28:13,235 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:28:13,236 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:28:13,237 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:28:13,238 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:28:13,239 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:28:13,239 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a28~0 9) (<= ~a25~0 0)) [2020-07-20 17:28:13,239 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:28:13,239 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:28:13,239 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 9)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-20 17:28:13,239 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0)) (.cse2 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 10)) (.cse1 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1 (not .cse2)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse0 .cse3) (and .cse0 .cse4 .cse5 .cse3) (not (<= |old(~a28~0)| 9)) (and .cse2 .cse0 .cse4 .cse1 .cse5) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)))) [2020-07-20 17:28:13,240 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:13,240 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:28:13,240 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse3 (= 1 ~a25~0)) (.cse2 (= 1 ~a19~0)) (.cse0 (<= ~a17~0 8)) (.cse4 (<= ~a28~0 10)) (.cse1 (<= ~a25~0 0)) (.cse5 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 (<= ~a28~0 9) .cse1 (not .cse2)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse2 .cse0 .cse3) (and .cse0 .cse4 .cse5 .cse3) (not (<= |old(~a28~0)| 9)) (and .cse2 .cse0 .cse4 .cse1 .cse5) (not (<= |old(~a25~0)| 0)) (<= ~a17~0 7) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0)))) [2020-07-20 17:28:13,240 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:28:13,240 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:28:13,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:28:13 BoogieIcfgContainer [2020-07-20 17:28:13,269 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:28:13,270 INFO L168 Benchmark]: Toolchain (without parser) took 19079.51 ms. Allocated memory was 136.8 MB in the beginning and 512.2 MB in the end (delta: 375.4 MB). Free memory was 100.8 MB in the beginning and 356.8 MB in the end (delta: -256.0 MB). Peak memory consumption was 410.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:13,271 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:28:13,272 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.69 ms. Allocated memory was 136.8 MB in the beginning and 202.9 MB in the end (delta: 66.1 MB). Free memory was 100.3 MB in the beginning and 170.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:13,273 INFO L168 Benchmark]: Boogie Preprocessor took 140.77 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 164.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:13,274 INFO L168 Benchmark]: RCFGBuilder took 1274.28 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.9 MB in the beginning and 179.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:13,274 INFO L168 Benchmark]: TraceAbstraction took 16886.69 ms. Allocated memory was 232.8 MB in the beginning and 512.2 MB in the end (delta: 279.4 MB). Free memory was 179.8 MB in the beginning and 356.8 MB in the end (delta: -177.0 MB). Peak memory consumption was 393.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:28:13,278 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.69 ms. Allocated memory was 136.8 MB in the beginning and 202.9 MB in the end (delta: 66.1 MB). Free memory was 100.3 MB in the beginning and 170.1 MB in the end (delta: -69.7 MB). Peak memory consumption was 36.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 140.77 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 164.9 MB in the end (delta: 5.1 MB). Peak memory consumption was 5.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1274.28 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.9 MB in the beginning and 179.8 MB in the end (delta: -14.9 MB). Peak memory consumption was 86.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16886.69 ms. Allocated memory was 232.8 MB in the beginning and 512.2 MB in the end (delta: 279.4 MB). Free memory was 179.8 MB in the beginning and 356.8 MB in the end (delta: -177.0 MB). Peak memory consumption was 393.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 439]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || (((a17 <= 8 && a28 <= 9) && a25 <= 0) && !(1 == a19))) || (((a17 <= \old(a17) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || ((1 == a19 && a17 <= 8) && 1 == a25)) || (((a17 <= 8 && a28 <= 10) && 9 <= a28) && 1 == a25)) || !(\old(a28) <= 9)) || ((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 9 <= a28)) || !(\old(a25) <= 0)) || a17 <= 7) || !(\old(a17) <= 8)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 13.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1353 SDtfs, 3829 SDslu, 569 SDs, 0 SdLazy, 6291 SolverSat, 818 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2132 GetRequests, 2083 SyntacticMatches, 6 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3882occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 666 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 189 PreInvPairs, 287 NumberOfFragments, 639 HoareAnnotationTreeSize, 189 FomulaSimplifications, 10121 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8473 FormulaSimplificationTreeSizeReductionInter, 2.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1415 NumberOfCodeBlocks, 1415 NumberOfCodeBlocksAsserted, 44 NumberOfCheckSat, 2106 ConstructedInterpolants, 0 QuantifiedInterpolants, 524494 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4080 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 16 InterpolantComputations, 6 PerfectInterpolantSequences, 749/821 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...