/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 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 16:35:46,352 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 16:35:46,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 16:35:46,373 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 16:35:46,373 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 16:35:46,376 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 16:35:46,378 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 16:35:46,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 16:35:46,393 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 16:35:46,396 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 16:35:46,397 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 16:35:46,398 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 16:35:46,399 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 16:35:46,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 16:35:46,403 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 16:35:46,404 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 16:35:46,406 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 16:35:46,407 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 16:35:46,409 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 16:35:46,414 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 16:35:46,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 16:35:46,421 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 16:35:46,422 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 16:35:46,425 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 16:35:46,427 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 16:35:46,427 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 16:35:46,428 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 16:35:46,430 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 16:35:46,431 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 16:35:46,432 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 16:35:46,432 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 16:35:46,433 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 16:35:46,434 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 16:35:46,435 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 16:35:46,436 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 16:35:46,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 16:35:46,437 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 16:35:46,437 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 16:35:46,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 16:35:46,438 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 16:35:46,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 16:35:46,440 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 [2020-07-21 16:35:46,476 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 16:35:46,476 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 16:35:46,481 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 16:35:46,481 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 16:35:46,481 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 16:35:46,482 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 16:35:46,482 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 16:35:46,482 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 16:35:46,482 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 16:35:46,482 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 16:35:46,483 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 16:35:46,483 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 16:35:46,483 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 16:35:46,486 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 16:35:46,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 16:35:46,487 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 16:35:46,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 16:35:46,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 16:35:46,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 16:35:46,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 16:35:46,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 16:35:46,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 16:35:46,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 16:35:46,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 16:35:46,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 16:35:46,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 16:35:46,490 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:46,490 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 16:35:46,490 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 16:35:46,490 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 -> 2 [2020-07-21 16:35:46,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 16:35:46,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 16:35:46,806 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 16:35:46,815 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 16:35:46,817 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 16:35:46,819 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 16:35:46,900 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417f189f8/0fcf1c346bc04eec9c0f246ba21b2312/FLAG4e9c1d918 [2020-07-21 16:35:47,545 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 16:35:47,546 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label13.c [2020-07-21 16:35:47,559 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417f189f8/0fcf1c346bc04eec9c0f246ba21b2312/FLAG4e9c1d918 [2020-07-21 16:35:47,791 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/417f189f8/0fcf1c346bc04eec9c0f246ba21b2312 [2020-07-21 16:35:47,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 16:35:47,808 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 16:35:47,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 16:35:47,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 16:35:47,816 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 16:35:47,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:35:47" (1/1) ... [2020-07-21 16:35:47,820 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a7de326 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:47, skipping insertion in model container [2020-07-21 16:35:47,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 04:35:47" (1/1) ... [2020-07-21 16:35:47,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 16:35:47,887 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 16:35:48,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:35:48,485 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 16:35:48,621 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 16:35:48,644 INFO L208 MainTranslator]: Completed translation [2020-07-21 16:35:48,644 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48 WrapperNode [2020-07-21 16:35:48,645 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 16:35:48,646 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 16:35:48,646 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 16:35:48,646 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 16:35:48,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,704 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,749 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,774 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (1/1) ... [2020-07-21 16:35:48,782 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 16:35:48,782 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 16:35:48,783 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 16:35:48,783 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 16:35:48,784 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (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 [2020-07-21 16:35:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 16:35:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 16:35:48,878 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 16:35:48,879 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 16:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 16:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 16:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 16:35:48,879 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 16:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 16:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 16:35:48,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 16:35:50,250 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 16:35:50,251 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 16:35:50,257 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:35:50 BoogieIcfgContainer [2020-07-21 16:35:50,257 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 16:35:50,259 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 16:35:50,259 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 16:35:50,262 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 16:35:50,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 04:35:47" (1/3) ... [2020-07-21 16:35:50,263 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acbe31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:35:50, skipping insertion in model container [2020-07-21 16:35:50,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 04:35:48" (2/3) ... [2020-07-21 16:35:50,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6acbe31b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 04:35:50, skipping insertion in model container [2020-07-21 16:35:50,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 04:35:50" (3/3) ... [2020-07-21 16:35:50,266 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label13.c [2020-07-21 16:35:50,278 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 16:35:50,287 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 16:35:50,303 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 16:35:50,330 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 16:35:50,330 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 16:35:50,331 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 16:35:50,331 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 16:35:50,331 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 16:35:50,332 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 16:35:50,332 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 16:35:50,332 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 16:35:50,357 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 16:35:50,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 16:35:50,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:50,368 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] [2020-07-21 16:35:50,368 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:50,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:50,375 INFO L82 PathProgramCache]: Analyzing trace with hash 1614181646, now seen corresponding path program 1 times [2020-07-21 16:35:50,384 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:50,384 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1564548783] [2020-07-21 16:35:50,385 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:50,526 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:50,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:50,530 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 16:35:50,538 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:50,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:50,616 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:50,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1564548783] [2020-07-21 16:35:50,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:50,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:50,619 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065947750] [2020-07-21 16:35:50,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:50,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:50,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:50,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:50,646 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 16:35:51,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:51,717 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 16:35:51,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:51,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 61 [2020-07-21 16:35:51,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:51,746 INFO L225 Difference]: With dead ends: 586 [2020-07-21 16:35:51,747 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 16:35:51,758 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:51,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 16:35:51,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 16:35:51,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 16:35:51,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-21 16:35:51,830 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 61 [2020-07-21 16:35:51,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:51,831 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-21 16:35:51,831 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:51,831 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-21 16:35:51,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-07-21 16:35:51,838 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:51,839 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:35:52,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:52,044 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:52,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:52,045 INFO L82 PathProgramCache]: Analyzing trace with hash 1316913554, now seen corresponding path program 1 times [2020-07-21 16:35:52,045 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:52,046 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1910745014] [2020-07-21 16:35:52,046 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:52,163 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:52,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:52,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 272 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:52,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:52,218 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:52,218 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:52,219 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1910745014] [2020-07-21 16:35:52,219 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:52,219 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:52,219 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249259794] [2020-07-21 16:35:52,221 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:52,222 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:52,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:52,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:52,223 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states. [2020-07-21 16:35:53,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:53,000 INFO L93 Difference]: Finished difference Result 868 states and 1277 transitions. [2020-07-21 16:35:53,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:53,001 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 135 [2020-07-21 16:35:53,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:53,007 INFO L225 Difference]: With dead ends: 868 [2020-07-21 16:35:53,007 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 16:35:53,009 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:53,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 16:35:53,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 16:35:53,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 16:35:53,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 762 transitions. [2020-07-21 16:35:53,047 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 762 transitions. Word has length 135 [2020-07-21 16:35:53,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:53,048 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 762 transitions. [2020-07-21 16:35:53,048 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:53,048 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 762 transitions. [2020-07-21 16:35:53,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-07-21 16:35:53,052 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:53,052 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:35:53,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:53,266 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:53,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:53,267 INFO L82 PathProgramCache]: Analyzing trace with hash 2120193425, now seen corresponding path program 1 times [2020-07-21 16:35:53,268 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:53,268 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1704099] [2020-07-21 16:35:53,269 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:53,353 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:53,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:53,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 279 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:53,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:53,411 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:53,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:53,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1704099] [2020-07-21 16:35:53,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:53,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:53,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582694393] [2020-07-21 16:35:53,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:53,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:53,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:53,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:53,415 INFO L87 Difference]: Start difference. First operand 580 states and 762 transitions. Second operand 3 states. [2020-07-21 16:35:54,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:54,168 INFO L93 Difference]: Finished difference Result 1440 states and 1957 transitions. [2020-07-21 16:35:54,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:54,173 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 140 [2020-07-21 16:35:54,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:54,179 INFO L225 Difference]: With dead ends: 1440 [2020-07-21 16:35:54,179 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 16:35:54,181 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:54,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 16:35:54,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2020-07-21 16:35:54,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-21 16:35:54,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1139 transitions. [2020-07-21 16:35:54,226 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1139 transitions. Word has length 140 [2020-07-21 16:35:54,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:54,227 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1139 transitions. [2020-07-21 16:35:54,227 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:54,228 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1139 transitions. [2020-07-21 16:35:54,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-21 16:35:54,232 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:54,233 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 16:35:54,448 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:54,449 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:54,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:54,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1756677455, now seen corresponding path program 1 times [2020-07-21 16:35:54,451 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:54,451 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880048128] [2020-07-21 16:35:54,452 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:54,546 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:54,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:54,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 295 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:54,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:54,631 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:54,632 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:54,632 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880048128] [2020-07-21 16:35:54,632 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:54,633 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:54,633 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429338607] [2020-07-21 16:35:54,634 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:54,634 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:54,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:54,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:54,635 INFO L87 Difference]: Start difference. First operand 866 states and 1139 transitions. Second operand 3 states. [2020-07-21 16:35:55,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:55,300 INFO L93 Difference]: Finished difference Result 2012 states and 2717 transitions. [2020-07-21 16:35:55,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:55,305 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 156 [2020-07-21 16:35:55,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:55,314 INFO L225 Difference]: With dead ends: 2012 [2020-07-21 16:35:55,314 INFO L226 Difference]: Without dead ends: 1152 [2020-07-21 16:35:55,317 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:55,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-21 16:35:55,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2020-07-21 16:35:55,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-21 16:35:55,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1466 transitions. [2020-07-21 16:35:55,357 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1466 transitions. Word has length 156 [2020-07-21 16:35:55,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:55,358 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1466 transitions. [2020-07-21 16:35:55,358 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:55,358 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1466 transitions. [2020-07-21 16:35:55,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-21 16:35:55,366 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:55,367 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 16:35:55,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:55,580 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:55,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:55,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1335928450, now seen corresponding path program 1 times [2020-07-21 16:35:55,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:55,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [407150222] [2020-07-21 16:35:55,582 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:55,720 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:55,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:55,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:55,726 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:55,784 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:55,785 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:35:55,916 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 179 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 16:35:55,916 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [407150222] [2020-07-21 16:35:55,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:35:55,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 16:35:55,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232575343] [2020-07-21 16:35:55,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 16:35:55,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:55,918 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 16:35:55,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:35:55,919 INFO L87 Difference]: Start difference. First operand 1152 states and 1466 transitions. Second operand 7 states. [2020-07-21 16:35:57,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:57,597 INFO L93 Difference]: Finished difference Result 3951 states and 5238 transitions. [2020-07-21 16:35:57,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 16:35:57,598 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 213 [2020-07-21 16:35:57,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:57,612 INFO L225 Difference]: With dead ends: 3951 [2020-07-21 16:35:57,612 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 16:35:57,619 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 16:35:57,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 16:35:57,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1885. [2020-07-21 16:35:57,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-21 16:35:57,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2211 transitions. [2020-07-21 16:35:57,690 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2211 transitions. Word has length 213 [2020-07-21 16:35:57,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:57,691 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2211 transitions. [2020-07-21 16:35:57,691 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 16:35:57,691 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2211 transitions. [2020-07-21 16:35:57,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-07-21 16:35:57,697 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:57,697 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:57,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:57,913 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:57,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:57,914 INFO L82 PathProgramCache]: Analyzing trace with hash -45528551, now seen corresponding path program 1 times [2020-07-21 16:35:57,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:57,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1141190430] [2020-07-21 16:35:57,915 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:58,059 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:58,059 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:58,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:58,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:58,118 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 16:35:58,119 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:58,119 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1141190430] [2020-07-21 16:35:58,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:58,120 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:58,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257788789] [2020-07-21 16:35:58,121 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:58,121 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:58,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:58,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:58,122 INFO L87 Difference]: Start difference. First operand 1885 states and 2211 transitions. Second operand 3 states. [2020-07-21 16:35:58,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:58,737 INFO L93 Difference]: Finished difference Result 4050 states and 4819 transitions. [2020-07-21 16:35:58,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:58,738 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 228 [2020-07-21 16:35:58,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:58,750 INFO L225 Difference]: With dead ends: 4050 [2020-07-21 16:35:58,750 INFO L226 Difference]: Without dead ends: 2169 [2020-07-21 16:35:58,755 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 227 GetRequests, 226 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:58,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2169 states. [2020-07-21 16:35:58,808 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2169 to 2024. [2020-07-21 16:35:58,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-07-21 16:35:58,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2390 transitions. [2020-07-21 16:35:58,816 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2390 transitions. Word has length 228 [2020-07-21 16:35:58,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:58,816 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 2390 transitions. [2020-07-21 16:35:58,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:58,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2390 transitions. [2020-07-21 16:35:58,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 16:35:58,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:58,823 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:35:59,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:35:59,037 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:35:59,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:35:59,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1221820657, now seen corresponding path program 1 times [2020-07-21 16:35:59,038 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:35:59,039 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629265483] [2020-07-21 16:35:59,039 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:35:59,183 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:35:59,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:35:59,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:35:59,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:35:59,267 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 16:35:59,267 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:35:59,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629265483] [2020-07-21 16:35:59,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:35:59,268 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:35:59,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532098647] [2020-07-21 16:35:59,269 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:35:59,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:35:59,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:35:59,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:59,270 INFO L87 Difference]: Start difference. First operand 2024 states and 2390 transitions. Second operand 3 states. [2020-07-21 16:35:59,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:35:59,786 INFO L93 Difference]: Finished difference Result 2026 states and 2391 transitions. [2020-07-21 16:35:59,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:35:59,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 244 [2020-07-21 16:35:59,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:35:59,797 INFO L225 Difference]: With dead ends: 2026 [2020-07-21 16:35:59,797 INFO L226 Difference]: Without dead ends: 2024 [2020-07-21 16:35:59,799 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 242 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:35:59,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2024 states. [2020-07-21 16:35:59,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2024 to 2024. [2020-07-21 16:35:59,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2024 states. [2020-07-21 16:35:59,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2024 states to 2024 states and 2389 transitions. [2020-07-21 16:35:59,852 INFO L78 Accepts]: Start accepts. Automaton has 2024 states and 2389 transitions. Word has length 244 [2020-07-21 16:35:59,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:35:59,853 INFO L479 AbstractCegarLoop]: Abstraction has 2024 states and 2389 transitions. [2020-07-21 16:35:59,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:35:59,853 INFO L276 IsEmpty]: Start isEmpty. Operand 2024 states and 2389 transitions. [2020-07-21 16:35:59,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 258 [2020-07-21 16:35:59,862 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:35:59,862 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:00,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:00,077 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:00,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:00,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1248765022, now seen corresponding path program 1 times [2020-07-21 16:36:00,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:00,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [645093438] [2020-07-21 16:36:00,079 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:36:00,257 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:00,257 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:00,259 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 16:36:00,263 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:00,333 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 130 proven. 0 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 16:36:00,333 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:36:00,334 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [645093438] [2020-07-21 16:36:00,334 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:36:00,334 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 16:36:00,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273379966] [2020-07-21 16:36:00,335 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 16:36:00,335 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:00,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 16:36:00,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 16:36:00,336 INFO L87 Difference]: Start difference. First operand 2024 states and 2389 transitions. Second operand 5 states. [2020-07-21 16:36:01,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:01,154 INFO L93 Difference]: Finished difference Result 3943 states and 4678 transitions. [2020-07-21 16:36:01,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 16:36:01,156 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 257 [2020-07-21 16:36:01,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:01,165 INFO L225 Difference]: With dead ends: 3943 [2020-07-21 16:36:01,165 INFO L226 Difference]: Without dead ends: 2068 [2020-07-21 16:36:01,170 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 253 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 16:36:01,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2068 states. [2020-07-21 16:36:01,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2068 to 2062. [2020-07-21 16:36:01,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2062 states. [2020-07-21 16:36:01,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2062 states to 2062 states and 2433 transitions. [2020-07-21 16:36:01,231 INFO L78 Accepts]: Start accepts. Automaton has 2062 states and 2433 transitions. Word has length 257 [2020-07-21 16:36:01,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:01,232 INFO L479 AbstractCegarLoop]: Abstraction has 2062 states and 2433 transitions. [2020-07-21 16:36:01,232 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 16:36:01,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2062 states and 2433 transitions. [2020-07-21 16:36:01,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-07-21 16:36:01,243 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:01,243 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:01,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:01,447 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:01,448 INFO L82 PathProgramCache]: Analyzing trace with hash -649626018, now seen corresponding path program 1 times [2020-07-21 16:36:01,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:01,449 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [970542560] [2020-07-21 16:36:01,449 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:36:01,674 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:01,675 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:01,676 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:36:01,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:01,718 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 16:36:01,720 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:01,802 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 322 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 16:36:01,803 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:01,921 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:01,922 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:01,928 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 16:36:01,928 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:02,227 INFO L134 CoverageAnalysis]: Checked inductivity of 379 backedges. 234 proven. 77 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-07-21 16:36:02,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [970542560] [2020-07-21 16:36:02,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 16:36:02,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 16:36:02,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910940617] [2020-07-21 16:36:02,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 16:36:02,234 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:02,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 16:36:02,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 16:36:02,235 INFO L87 Difference]: Start difference. First operand 2062 states and 2433 transitions. Second operand 6 states. [2020-07-21 16:36:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:36:03,247 INFO L93 Difference]: Finished difference Result 4011 states and 4817 transitions. [2020-07-21 16:36:03,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 16:36:03,249 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 327 [2020-07-21 16:36:03,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:36:03,261 INFO L225 Difference]: With dead ends: 4011 [2020-07-21 16:36:03,261 INFO L226 Difference]: Without dead ends: 2098 [2020-07-21 16:36:03,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 659 GetRequests, 650 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 16:36:03,273 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2098 states. [2020-07-21 16:36:03,341 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2098 to 1927. [2020-07-21 16:36:03,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1927 states. [2020-07-21 16:36:03,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1927 states to 1927 states and 2194 transitions. [2020-07-21 16:36:03,346 INFO L78 Accepts]: Start accepts. Automaton has 1927 states and 2194 transitions. Word has length 327 [2020-07-21 16:36:03,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:36:03,347 INFO L479 AbstractCegarLoop]: Abstraction has 1927 states and 2194 transitions. [2020-07-21 16:36:03,347 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 16:36:03,348 INFO L276 IsEmpty]: Start isEmpty. Operand 1927 states and 2194 transitions. [2020-07-21 16:36:03,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-07-21 16:36:03,365 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:36:03,366 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:36:03,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:36:03,572 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:36:03,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:36:03,573 INFO L82 PathProgramCache]: Analyzing trace with hash -467387859, now seen corresponding path program 1 times [2020-07-21 16:36:03,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:36:03,578 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [397361695] [2020-07-21 16:36:03,579 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:36:03,764 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:36:03,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:36:03,767 INFO L263 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-21 16:36:03,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:36:03,802 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:03,804 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:03,806 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:03,808 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 16:36:03,812 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,814 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,820 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,825 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:03,827 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 16:36:03,828 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 16:36:03,835 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,840 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,842 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,845 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:03,847 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,856 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,857 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,859 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:03,862 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:36:03,864 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:03,865 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,869 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:36:03,870 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,871 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,874 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 16:36:03,876 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 16:36:23,814 WARN L193 SmtUtils]: Spent 19.80 s on a formula simplification. DAG size of input: 64 DAG size of output: 34 [2020-07-21 16:36:23,858 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 16:36:23,999 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-21 16:36:24,000 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:24,001 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:24,028 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:36:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 431 backedges. 374 proven. 2 refuted. 0 times theorem prover too weak. 55 trivial. 0 not checked. [2020-07-21 16:36:24,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 16:36:24,320 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:24,323 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,324 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,325 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:24,355 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,356 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:24,510 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,512 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,513 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,514 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 16:36:24,516 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:24,517 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:24,519 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:24,520 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 16:36:24,521 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:24,523 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 16:36:24,523 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 16:36:24,634 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [397361695] [2020-07-21 16:36:24,635 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 16:36:24,635 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-07-21 16:36:24,635 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161604381] [2020-07-21 16:36:24,636 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 16:36:24,636 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:36:24,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 16:36:24,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-07-21 16:36:24,637 INFO L87 Difference]: Start difference. First operand 1927 states and 2194 transitions. Second operand 8 states. [2020-07-21 16:36:27,591 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2020-07-21 16:40:30,788 WARN L193 SmtUtils]: Spent 25.08 s on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2020-07-21 16:41:02,167 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 50 DAG size of output: 36 [2020-07-21 16:41:14,939 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 34 [2020-07-21 16:42:39,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:42:39,329 INFO L93 Difference]: Finished difference Result 4895 states and 5728 transitions. [2020-07-21 16:42:39,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-07-21 16:42:39,340 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-07-21 16:42:39,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:42:39,354 INFO L225 Difference]: With dead ends: 4895 [2020-07-21 16:42:39,354 INFO L226 Difference]: Without dead ends: 3117 [2020-07-21 16:42:39,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 635 GetRequests, 613 SyntacticMatches, 2 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 54.9s TimeCoverageRelationStatistics Valid=149, Invalid=311, Unknown=2, NotChecked=0, Total=462 [2020-07-21 16:42:39,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3117 states. [2020-07-21 16:42:39,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3117 to 2962. [2020-07-21 16:42:39,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2962 states. [2020-07-21 16:42:39,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2962 states to 2962 states and 3385 transitions. [2020-07-21 16:42:39,442 INFO L78 Accepts]: Start accepts. Automaton has 2962 states and 3385 transitions. Word has length 372 [2020-07-21 16:42:39,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:42:39,443 INFO L479 AbstractCegarLoop]: Abstraction has 2962 states and 3385 transitions. [2020-07-21 16:42:39,443 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 16:42:39,443 INFO L276 IsEmpty]: Start isEmpty. Operand 2962 states and 3385 transitions. [2020-07-21 16:42:39,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2020-07-21 16:42:39,456 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 16:42:39,456 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 16:42:39,657 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:42:39,658 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 16:42:39,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 16:42:39,659 INFO L82 PathProgramCache]: Analyzing trace with hash -145294626, now seen corresponding path program 1 times [2020-07-21 16:42:39,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 16:42:39,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [998332795] [2020-07-21 16:42:39,660 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 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 [2020-07-21 16:42:39,873 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 16:42:39,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 16:42:39,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 598 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 16:42:39,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 16:42:39,893 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:42:39,894 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:42:39,895 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:42:39,896 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 16:42:39,896 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:42:39,898 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 16:42:39,898 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 16:42:40,172 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 21 [2020-07-21 16:42:40,411 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2020-07-21 16:42:40,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 16:42:40,412 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [998332795] [2020-07-21 16:42:40,412 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 16:42:40,413 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 16:42:40,413 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172259137] [2020-07-21 16:42:40,414 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 16:42:40,414 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 16:42:40,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 16:42:40,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:42:40,414 INFO L87 Difference]: Start difference. First operand 2962 states and 3385 transitions. Second operand 3 states. [2020-07-21 16:42:45,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 16:42:45,831 INFO L93 Difference]: Finished difference Result 6063 states and 6952 transitions. [2020-07-21 16:42:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 16:42:45,837 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 391 [2020-07-21 16:42:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 16:42:45,838 INFO L225 Difference]: With dead ends: 6063 [2020-07-21 16:42:45,838 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 16:42:45,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 390 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 16:42:45,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 16:42:45,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 16:42:45,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 16:42:45,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 16:42:45,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 391 [2020-07-21 16:42:45,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 16:42:45,853 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 16:42:45,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 16:42:45,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 16:42:45,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 16:42:46,066 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 16:42:46,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 16:42:46,918 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 12 [2020-07-21 16:42:47,241 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 25 [2020-07-21 16:42:50,821 WARN L193 SmtUtils]: Spent 3.57 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2020-07-21 16:42:52,146 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 126 DAG size of output: 51 [2020-07-21 16:42:53,321 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 126 DAG size of output: 51 [2020-07-21 16:42:53,327 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:42:53,327 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,328 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 16:42:53,329 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 16:42:53,330 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 16:42:53,330 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 16:42:53,330 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 16:42:53,330 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 16:42:53,330 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,330 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 16:42:53,331 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 169) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,332 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 16:42:53,333 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,334 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 16:42:53,335 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,336 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 16:42:53,337 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,338 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 16:42:53,339 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,340 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 16:42:53,341 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 16:42:53,342 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 16:42:53,343 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse5 (not (< |old(~a19~0)| 10))) (.cse6 (not (<= 9 |old(~a19~0)|))) (.cse7 (<= 9 ~a19~0)) (.cse2 (<= |old(~a10~0)| ~a10~0)) (.cse3 (= ~a1~0 |old(~a1~0)|)) (.cse0 (not (<= |old(~a19~0)| 8))) (.cse1 (<= ~a19~0 |old(~a19~0)|)) (.cse8 (not (<= |old(~a10~0)| 2))) (.cse9 (not (<= |old(~a10~0)| 1)))) (and (or (not (<= 4 |old(~a10~0)|)) .cse0 (and .cse1 (<= 4 ~a10~0))) (or (and .cse2 .cse1 .cse3) (forall ((v_~a1~0_401 Int)) (let ((.cse4 (mod v_~a1~0_401 25))) (or (not (< v_~a1~0_401 0)) (= 0 .cse4) (not (<= 65 (* 5 .cse4))) (not (<= |old(~a1~0)| (+ (mod (+ (* .cse4 5) 10) 25) 13)))))) .cse0 (not (<= 2 |old(~a10~0)|))) (or .cse5 .cse6 (and .cse7 .cse2 .cse3 (< ~a19~0 10))) (or (not (<= |old(~a1~0)| 23)) (<= ~a1~0 23) .cse0) (or .cse5 (<= ~a10~0 2) .cse8) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse6 (and .cse7 .cse2 .cse1 .cse3) .cse9) (or .cse0 .cse1 .cse8) (or (<= ~a10~0 1) .cse9))) [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 16:42:53,344 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 16:42:53,345 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,346 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 16:42:53,347 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 16:42:53,348 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (= 23 ~a1~0) (< ~a19~0 10)) [2020-07-21 16:42:53,349 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 16:42:53,349 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (= ~a1~0 |old(~a1~0)|) (< ~a19~0 10)) (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|))) [2020-07-21 16:42:53,349 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:42:53,350 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (< ~a19~0 10)) (.cse2 (<= ~a19~0 8))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (and (exists ((v_~a1~0_401 Int)) (let ((.cse0 (mod v_~a1~0_401 25))) (and (< v_~a1~0_401 0) (not (= 0 .cse0)) (<= 65 (* 5 .cse0)) (<= ~a1~0 (+ (mod (+ (* .cse0 5) 10) 25) 13))))) .cse1) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and .cse2 (<= ~a10~0 2)) (and (<= 9 ~a19~0) .cse1) (and .cse2 (<= 4 ~a10~0)))) [2020-07-21 16:42:53,350 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 16:42:53,350 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 16:42:53,350 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (< ~a19~0 10)) (.cse2 (<= ~a19~0 8))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (and (exists ((v_~a1~0_401 Int)) (let ((.cse0 (mod v_~a1~0_401 25))) (and (< v_~a1~0_401 0) (not (= 0 .cse0)) (<= 65 (* 5 .cse0)) (<= ~a1~0 (+ (mod (+ (* .cse0 5) 10) 25) 13))))) .cse1) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (and .cse2 (<= ~a10~0 2)) (and (<= 9 ~a19~0) .cse1) (and .cse2 (<= 4 ~a10~0)))) [2020-07-21 16:42:53,350 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 16:42:53,364 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,365 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,366 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,375 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,376 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,380 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 04:42:53 BoogieIcfgContainer [2020-07-21 16:42:53,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 16:42:53,382 INFO L168 Benchmark]: Toolchain (without parser) took 425575.88 ms. Allocated memory was 145.8 MB in the beginning and 526.9 MB in the end (delta: 381.2 MB). Free memory was 102.8 MB in the beginning and 142.0 MB in the end (delta: -39.2 MB). Peak memory consumption was 342.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:42:53,383 INFO L168 Benchmark]: CDTParser took 0.41 ms. Allocated memory is still 145.8 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-21 16:42:53,384 INFO L168 Benchmark]: CACSL2BoogieTranslator took 833.46 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 102.8 MB in the beginning and 172.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:42:53,384 INFO L168 Benchmark]: Boogie Preprocessor took 136.28 ms. Allocated memory is still 206.6 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 16:42:53,385 INFO L168 Benchmark]: RCFGBuilder took 1475.07 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 167.2 MB in the beginning and 180.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:42:53,386 INFO L168 Benchmark]: TraceAbstraction took 423121.55 ms. Allocated memory was 237.5 MB in the beginning and 526.9 MB in the end (delta: 289.4 MB). Free memory was 179.2 MB in the beginning and 142.0 MB in the end (delta: 37.2 MB). Peak memory consumption was 326.6 MB. Max. memory is 7.1 GB. [2020-07-21 16:42:53,389 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41 ms. Allocated memory is still 145.8 MB. Free memory is still 122.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 833.46 ms. Allocated memory was 145.8 MB in the beginning and 206.6 MB in the end (delta: 60.8 MB). Free memory was 102.8 MB in the beginning and 172.2 MB in the end (delta: -69.4 MB). Peak memory consumption was 32.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.28 ms. Allocated memory is still 206.6 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1475.07 ms. Allocated memory was 206.6 MB in the beginning and 237.5 MB in the end (delta: 30.9 MB). Free memory was 167.2 MB in the beginning and 180.9 MB in the end (delta: -13.7 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 423121.55 ms. Allocated memory was 237.5 MB in the beginning and 526.9 MB in the end (delta: 289.4 MB). Free memory was 179.2 MB in the beginning and 142.0 MB in the end (delta: 37.2 MB). Peak memory consumption was 326.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 169]: 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: 582]: Loop Invariant [2020-07-21 16:42:53,398 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,399 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,400 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] [2020-07-21 16:42:53,401 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_~a1~0_401,QUANTIFIED] Derived loop invariant: (((((((a10 <= 1 || !(\old(a19) < 10)) || !(\old(a10) <= 0)) || ((\exists v_~a1~0_401 : int :: ((v_~a1~0_401 < 0 && !(0 == v_~a1~0_401 % 25)) && 65 <= 5 * (v_~a1~0_401 % 25)) && a1 <= (v_~a1~0_401 % 25 * 5 + 10) % 25 + 13) && a19 < 10)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || (a19 <= 8 && a10 <= 2)) || (9 <= a19 && a19 < 10)) || (a19 <= 8 && 4 <= a10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 415.7s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 388.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 621 SDtfs, 2497 SDslu, 266 SDs, 0 SdLazy, 6653 SolverSat, 992 SolverUnsat, 152 SolverUnknown, 0 SolverNotchecked, 344.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3332 GetRequests, 3278 SyntacticMatches, 5 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 55.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2962occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 11 MinimizatonAttempts, 513 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 129 PreInvPairs, 195 NumberOfFragments, 374 HoareAnnotationTreeSize, 129 FomulaSimplifications, 2357 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4072 FormulaSimplificationTreeSizeReductionInter, 6.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 22.6s InterpolantComputationTime, 2524 NumberOfCodeBlocks, 2524 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3051 ConstructedInterpolants, 63 QuantifiedInterpolants, 2456351 SizeOfPredicates, 18 NumberOfNonLiveVariables, 4354 ConjunctsInSsa, 61 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 2611/2696 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...