/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_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:08:56,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:08:56,613 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:08:56,631 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:08:56,632 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:08:56,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:08:56,636 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:08:56,646 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:08:56,650 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:08:56,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:08:56,655 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:08:56,656 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:08:56,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:08:56,658 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:08:56,660 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:08:56,661 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:08:56,663 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:08:56,663 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:08:56,665 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:08:56,670 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:08:56,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:08:56,678 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:08:56,679 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:08:56,680 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:08:56,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 14:08:56,682 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 14:08:56,683 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 14:08:56,685 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 14:08:56,685 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 14:08:56,686 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 14:08:56,687 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 14:08:56,688 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 14:08:56,688 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 14:08:56,689 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 14:08:56,690 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 14:08:56,690 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 14:08:56,691 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 14:08:56,691 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 14:08:56,691 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:08:56,692 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:08:56,693 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:08:56,694 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 14:08:56,729 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:08:56,730 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:08:56,734 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:08:56,734 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:08:56,735 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:08:56,735 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:08:56,735 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:08:56,735 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:08:56,735 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:08:56,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:08:56,736 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:08:56,736 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:08:56,736 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:08:56,739 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:08:56,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:08:56,740 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:08:56,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:08:56,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:08:56,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:08:56,740 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:08:56,740 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:08:56,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:08:56,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:08:56,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:08:56,741 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:08:56,743 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:08:56,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:08:56,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:08:56,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:08:56,744 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_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:08:57,070 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:08:57,094 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:08:57,098 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:08:57,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:08:57,102 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:08:57,103 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label10.c [2020-07-20 14:08:57,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de6effd9/e25747b8de3c40b0b5e0fcdf41769f85/FLAG1051de55b [2020-07-20 14:08:57,733 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:08:57,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label10.c [2020-07-20 14:08:57,748 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de6effd9/e25747b8de3c40b0b5e0fcdf41769f85/FLAG1051de55b [2020-07-20 14:08:57,997 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7de6effd9/e25747b8de3c40b0b5e0fcdf41769f85 [2020-07-20 14:08:58,006 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:08:58,008 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:08:58,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:58,009 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:08:58,013 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:08:58,014 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:57" (1/1) ... [2020-07-20 14:08:58,016 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a9b5931 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58, skipping insertion in model container [2020-07-20 14:08:58,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:08:57" (1/1) ... [2020-07-20 14:08:58,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:08:58,087 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:08:58,505 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:58,510 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:08:58,773 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:08:58,805 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:08:58,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58 WrapperNode [2020-07-20 14:08:58,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:08:58,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:08:58,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:08:58,807 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:08:58,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,874 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,897 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... [2020-07-20 14:08:58,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:08:58,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:08:58,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:08:58,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:08:58,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:08:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:08:58,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:08:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:08:58,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:08:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:08:58,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:08:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:08:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:08:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:08:58,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:08:58,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:09:00,256 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:09:00,256 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:09:00,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:09:00 BoogieIcfgContainer [2020-07-20 14:09:00,262 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:09:00,263 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:09:00,264 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:09:00,267 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:09:00,267 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:08:57" (1/3) ... [2020-07-20 14:09:00,268 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca61e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:09:00, skipping insertion in model container [2020-07-20 14:09:00,268 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:08:58" (2/3) ... [2020-07-20 14:09:00,269 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ca61e6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:09:00, skipping insertion in model container [2020-07-20 14:09:00,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:09:00" (3/3) ... [2020-07-20 14:09:00,270 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label10.c [2020-07-20 14:09:00,281 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:09:00,288 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:09:00,302 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:09:00,327 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:09:00,328 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:09:00,328 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:09:00,328 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:09:00,328 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:09:00,328 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:09:00,329 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:09:00,329 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:09:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 14:09:00,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-20 14:09:00,362 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:00,364 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] [2020-07-20 14:09:00,364 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:00,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:00,370 INFO L82 PathProgramCache]: Analyzing trace with hash 951236199, now seen corresponding path program 1 times [2020-07-20 14:09:00,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:00,380 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031039724] [2020-07-20 14:09:00,380 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:00,502 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:00,503 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:00,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:00,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:00,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:00,580 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:00,581 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1031039724] [2020-07-20 14:09:00,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:00,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:00,583 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446346426] [2020-07-20 14:09:00,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:00,589 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:00,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:00,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:00,605 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 14:09:01,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:01,704 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-20 14:09:01,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:01,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-07-20 14:09:01,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:01,723 INFO L225 Difference]: With dead ends: 586 [2020-07-20 14:09:01,723 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 14:09:01,731 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:01,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 14:09:01,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 14:09:01,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 14:09:01,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-20 14:09:01,808 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 54 [2020-07-20 14:09:01,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:01,809 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-20 14:09:01,810 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:01,810 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-20 14:09:01,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-20 14:09:01,822 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:01,823 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:02,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:02,025 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:02,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:02,026 INFO L82 PathProgramCache]: Analyzing trace with hash 2035742562, now seen corresponding path program 1 times [2020-07-20 14:09:02,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:02,027 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1412687382] [2020-07-20 14:09:02,027 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:02,108 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:02,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:02,110 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:02,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:02,190 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:02,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:02,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1412687382] [2020-07-20 14:09:02,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:02,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:02,192 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838573001] [2020-07-20 14:09:02,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:02,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:02,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:02,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:02,195 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 5 states. [2020-07-20 14:09:03,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:03,351 INFO L93 Difference]: Finished difference Result 890 states and 1316 transitions. [2020-07-20 14:09:03,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:03,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 128 [2020-07-20 14:09:03,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:03,366 INFO L225 Difference]: With dead ends: 890 [2020-07-20 14:09:03,368 INFO L226 Difference]: Without dead ends: 602 [2020-07-20 14:09:03,370 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:09:03,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 602 states. [2020-07-20 14:09:03,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 602 to 590. [2020-07-20 14:09:03,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 590 states. [2020-07-20 14:09:03,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 590 states to 590 states and 775 transitions. [2020-07-20 14:09:03,446 INFO L78 Accepts]: Start accepts. Automaton has 590 states and 775 transitions. Word has length 128 [2020-07-20 14:09:03,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:03,450 INFO L479 AbstractCegarLoop]: Abstraction has 590 states and 775 transitions. [2020-07-20 14:09:03,450 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:03,451 INFO L276 IsEmpty]: Start isEmpty. Operand 590 states and 775 transitions. [2020-07-20 14:09:03,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-20 14:09:03,462 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:03,463 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:03,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:03,680 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:03,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:03,682 INFO L82 PathProgramCache]: Analyzing trace with hash 748722597, now seen corresponding path program 1 times [2020-07-20 14:09:03,683 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:03,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [213891655] [2020-07-20 14:09:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:03,775 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:03,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:03,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:03,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:03,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:03,816 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [213891655] [2020-07-20 14:09:03,816 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:03,817 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:03,817 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [808967458] [2020-07-20 14:09:03,818 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:03,818 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:03,818 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:03,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:03,819 INFO L87 Difference]: Start difference. First operand 590 states and 775 transitions. Second operand 3 states. [2020-07-20 14:09:04,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:04,526 INFO L93 Difference]: Finished difference Result 1462 states and 1992 transitions. [2020-07-20 14:09:04,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:04,529 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-20 14:09:04,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:04,537 INFO L225 Difference]: With dead ends: 1462 [2020-07-20 14:09:04,538 INFO L226 Difference]: Without dead ends: 878 [2020-07-20 14:09:04,540 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:04,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2020-07-20 14:09:04,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 878. [2020-07-20 14:09:04,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 878 states. [2020-07-20 14:09:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 878 states to 878 states and 1157 transitions. [2020-07-20 14:09:04,570 INFO L78 Accepts]: Start accepts. Automaton has 878 states and 1157 transitions. Word has length 133 [2020-07-20 14:09:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:04,571 INFO L479 AbstractCegarLoop]: Abstraction has 878 states and 1157 transitions. [2020-07-20 14:09:04,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 878 states and 1157 transitions. [2020-07-20 14:09:04,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-20 14:09:04,573 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:04,574 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:04,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:04,786 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:04,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:04,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1340631419, now seen corresponding path program 1 times [2020-07-20 14:09:04,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:04,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711295191] [2020-07-20 14:09:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:04,874 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:04,875 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:04,876 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:04,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:04,937 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:04,938 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:04,938 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711295191] [2020-07-20 14:09:04,938 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:04,939 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 14:09:04,939 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84323564] [2020-07-20 14:09:04,940 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 14:09:04,940 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:04,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 14:09:04,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 14:09:04,941 INFO L87 Difference]: Start difference. First operand 878 states and 1157 transitions. Second operand 5 states. [2020-07-20 14:09:05,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:05,916 INFO L93 Difference]: Finished difference Result 2370 states and 3201 transitions. [2020-07-20 14:09:05,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 14:09:05,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-07-20 14:09:05,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:05,927 INFO L225 Difference]: With dead ends: 2370 [2020-07-20 14:09:05,927 INFO L226 Difference]: Without dead ends: 1498 [2020-07-20 14:09:05,930 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-20 14:09:05,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2020-07-20 14:09:05,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1470. [2020-07-20 14:09:05,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1470 states. [2020-07-20 14:09:05,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1470 states to 1470 states and 1802 transitions. [2020-07-20 14:09:05,980 INFO L78 Accepts]: Start accepts. Automaton has 1470 states and 1802 transitions. Word has length 149 [2020-07-20 14:09:05,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:05,981 INFO L479 AbstractCegarLoop]: Abstraction has 1470 states and 1802 transitions. [2020-07-20 14:09:05,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 14:09:05,981 INFO L276 IsEmpty]: Start isEmpty. Operand 1470 states and 1802 transitions. [2020-07-20 14:09:05,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 14:09:05,984 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:05,984 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:06,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:06,198 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:06,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:06,199 INFO L82 PathProgramCache]: Analyzing trace with hash -2097424682, now seen corresponding path program 1 times [2020-07-20 14:09:06,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:06,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [521597396] [2020-07-20 14:09:06,200 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:06,289 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:06,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:06,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:06,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:06,323 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:06,324 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:06,324 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [521597396] [2020-07-20 14:09:06,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:06,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:06,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562694155] [2020-07-20 14:09:06,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:06,326 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:06,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:06,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:06,326 INFO L87 Difference]: Start difference. First operand 1470 states and 1802 transitions. Second operand 3 states. [2020-07-20 14:09:07,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:07,027 INFO L93 Difference]: Finished difference Result 3226 states and 4023 transitions. [2020-07-20 14:09:07,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:07,028 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-07-20 14:09:07,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:07,039 INFO L225 Difference]: With dead ends: 3226 [2020-07-20 14:09:07,039 INFO L226 Difference]: Without dead ends: 1762 [2020-07-20 14:09:07,043 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:07,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1762 states. [2020-07-20 14:09:07,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1762 to 1762. [2020-07-20 14:09:07,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-20 14:09:07,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2139 transitions. [2020-07-20 14:09:07,092 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2139 transitions. Word has length 150 [2020-07-20 14:09:07,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:07,093 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2139 transitions. [2020-07-20 14:09:07,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:07,093 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2139 transitions. [2020-07-20 14:09:07,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-20 14:09:07,098 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:07,098 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, 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] [2020-07-20 14:09:07,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:07,314 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:07,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:07,315 INFO L82 PathProgramCache]: Analyzing trace with hash -552508610, now seen corresponding path program 1 times [2020-07-20 14:09:07,315 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:07,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [629096978] [2020-07-20 14:09:07,316 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:07,422 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:07,423 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:07,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:07,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:07,498 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-20 14:09:07,498 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:07,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [629096978] [2020-07-20 14:09:07,499 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:07,499 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:07,499 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004851864] [2020-07-20 14:09:07,500 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:07,500 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:07,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:07,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:07,501 INFO L87 Difference]: Start difference. First operand 1762 states and 2139 transitions. Second operand 3 states. [2020-07-20 14:09:08,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:08,131 INFO L93 Difference]: Finished difference Result 2775 states and 3419 transitions. [2020-07-20 14:09:08,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:08,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-07-20 14:09:08,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:08,145 INFO L225 Difference]: With dead ends: 2775 [2020-07-20 14:09:08,146 INFO L226 Difference]: Without dead ends: 2773 [2020-07-20 14:09:08,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:08,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2773 states. [2020-07-20 14:09:08,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2773 to 2344. [2020-07-20 14:09:08,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2344 states. [2020-07-20 14:09:08,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2344 states to 2344 states and 2927 transitions. [2020-07-20 14:09:08,221 INFO L78 Accepts]: Start accepts. Automaton has 2344 states and 2927 transitions. Word has length 221 [2020-07-20 14:09:08,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:08,222 INFO L479 AbstractCegarLoop]: Abstraction has 2344 states and 2927 transitions. [2020-07-20 14:09:08,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:08,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2344 states and 2927 transitions. [2020-07-20 14:09:08,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-20 14:09:08,227 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:08,228 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, 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] [2020-07-20 14:09:08,442 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:08,443 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:08,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:08,443 INFO L82 PathProgramCache]: Analyzing trace with hash -1577028555, now seen corresponding path program 1 times [2020-07-20 14:09:08,444 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:08,444 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1625439500] [2020-07-20 14:09:08,444 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:08,549 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:08,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:08,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:08,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:08,685 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:08,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:08,823 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:08,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1625439500] [2020-07-20 14:09:08,824 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:08,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:09:08,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954752554] [2020-07-20 14:09:08,825 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:09:08,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:08,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:09:08,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:08,826 INFO L87 Difference]: Start difference. First operand 2344 states and 2927 transitions. Second operand 6 states. [2020-07-20 14:09:09,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:09,797 INFO L93 Difference]: Finished difference Result 5141 states and 6559 transitions. [2020-07-20 14:09:09,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:09,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2020-07-20 14:09:09,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:09,819 INFO L225 Difference]: With dead ends: 5141 [2020-07-20 14:09:09,820 INFO L226 Difference]: Without dead ends: 2803 [2020-07-20 14:09:09,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:09:09,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2803 states. [2020-07-20 14:09:09,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2803 to 2650. [2020-07-20 14:09:09,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-07-20 14:09:09,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3339 transitions. [2020-07-20 14:09:09,895 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3339 transitions. Word has length 222 [2020-07-20 14:09:09,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:09,895 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3339 transitions. [2020-07-20 14:09:09,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:09:09,896 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3339 transitions. [2020-07-20 14:09:09,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-20 14:09:09,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:09,902 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, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 14:09:10,116 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:10,117 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:10,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:10,117 INFO L82 PathProgramCache]: Analyzing trace with hash -648099628, now seen corresponding path program 1 times [2020-07-20 14:09:10,117 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:10,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087919113] [2020-07-20 14:09:10,118 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:10,222 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:10,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:10,224 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:10,227 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 14:09:10,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:10,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087919113] [2020-07-20 14:09:10,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:10,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:10,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868344225] [2020-07-20 14:09:10,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:10,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:10,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:10,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:10,279 INFO L87 Difference]: Start difference. First operand 2650 states and 3339 transitions. Second operand 3 states. [2020-07-20 14:09:10,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:10,963 INFO L93 Difference]: Finished difference Result 2938 states and 3660 transitions. [2020-07-20 14:09:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:10,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-20 14:09:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:10,978 INFO L225 Difference]: With dead ends: 2938 [2020-07-20 14:09:10,978 INFO L226 Difference]: Without dead ends: 2936 [2020-07-20 14:09:10,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:10,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2020-07-20 14:09:11,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2650. [2020-07-20 14:09:11,043 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2650 states. [2020-07-20 14:09:11,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2650 states to 2650 states and 3338 transitions. [2020-07-20 14:09:11,049 INFO L78 Accepts]: Start accepts. Automaton has 2650 states and 3338 transitions. Word has length 229 [2020-07-20 14:09:11,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:11,050 INFO L479 AbstractCegarLoop]: Abstraction has 2650 states and 3338 transitions. [2020-07-20 14:09:11,050 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:11,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2650 states and 3338 transitions. [2020-07-20 14:09:11,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-20 14:09:11,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:11,058 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:11,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:11,273 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:11,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:11,274 INFO L82 PathProgramCache]: Analyzing trace with hash 53533683, now seen corresponding path program 1 times [2020-07-20 14:09:11,274 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:11,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [493495211] [2020-07-20 14:09:11,274 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:11,466 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:11,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:11,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:11,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:11,542 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-20 14:09:11,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:11,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [493495211] [2020-07-20 14:09:11,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:11,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:11,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603309415] [2020-07-20 14:09:11,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:11,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:11,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:11,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:11,545 INFO L87 Difference]: Start difference. First operand 2650 states and 3338 transitions. Second operand 3 states. [2020-07-20 14:09:12,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:12,170 INFO L93 Difference]: Finished difference Result 5292 states and 6672 transitions. [2020-07-20 14:09:12,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:12,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-07-20 14:09:12,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:12,178 INFO L225 Difference]: With dead ends: 5292 [2020-07-20 14:09:12,178 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:09:12,188 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:12,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:09:12,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:09:12,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:09:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:09:12,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2020-07-20 14:09:12,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:12,190 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:09:12,190 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:12,190 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:09:12,190 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:09:12,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:12,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:09:13,302 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2020-07-20 14:09:13,424 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-07-20 14:09:13,545 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 31 [2020-07-20 14:09:13,549 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:13,549 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,550 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:09:13,551 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:09:13,552 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 14:09:13,552 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 14:09:13,552 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 14:09:13,552 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,552 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 14:09:13,553 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 14:09:13,554 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:09:13,554 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:09:13,554 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 14:09:13,555 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,556 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 14:09:13,557 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 14:09:13,558 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 14:09:13,558 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 14:09:13,558 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,558 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,558 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,560 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,560 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,560 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 14:09:13,560 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 14:09:13,560 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 14:09:13,560 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 14:09:13,561 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:09:13,562 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 14:09:13,563 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,564 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:09:13,565 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:09:13,566 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 14:09:13,566 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 14:09:13,566 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 14:09:13,570 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 14:09:13,570 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,570 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,570 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,570 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:09:13,571 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:09:13,572 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:09:13,572 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:09:13,572 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:09:13,572 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,573 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:09:13,574 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:09:13,575 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:09:13,575 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 14:09:13,575 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse3 (not (<= 4 |old(~a10~0)|))) (.cse6 (<= 4 ~a10~0)) (.cse5 (<= 7 ~a19~0)) (.cse0 (<= 9 ~a19~0)) (.cse9 (not (<= |old(~a10~0)| 1))) (.cse1 (not (<= 9 |old(~a19~0)|))) (.cse7 (not (<= |old(~a1~0)| 23))) (.cse8 (<= ~a1~0 23)) (.cse4 (not (<= 7 |old(~a19~0)|))) (.cse12 (not (<= |old(~a10~0)| 2))) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse10 (<= ~a10~0 |old(~a10~0)|)) (.cse11 (<= ~a19~0 |old(~a19~0)|))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse4 .cse2 (and .cse5 .cse6)) (or .cse7 .cse8 .cse4 .cse9) (or .cse3 .cse7 (and .cse8 .cse6) .cse2) (or (and .cse10 .cse8 .cse11) .cse7 (not (<= |old(~a10~0)| 0))) (or (and .cse10 .cse5 .cse11) .cse4 .cse2 .cse12) (or .cse1 (and .cse0 .cse10 .cse11) .cse9) (or .cse7 .cse8 .cse1 .cse2) (or .cse7 .cse8 .cse4 .cse2 .cse12) (or (not (<= 3 |old(~a10~0)|)) .cse2 (and .cse10 (<= 3 ~a10~0) .cse11)))) [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,576 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:09:13,577 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,578 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:09:13,579 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,580 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:09:13,581 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:13,582 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= ~a19~0 9) (<= 9 ~a19~0) (<= ~a1~0 23)) [2020-07-20 14:09:13,582 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:09:13,583 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:13,583 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (<= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a19~0)| 9))) [2020-07-20 14:09:13,584 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:09:13,584 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 9)) (.cse0 (<= 7 ~a19~0))) (or (and (<= ~a10~0 1) .cse0) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) (<= ~a1~0 23)) (and .cse1 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 .cse0) (not (<= |old(~a19~0)| 9)))) [2020-07-20 14:09:13,584 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 14:09:13,584 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 14:09:13,584 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse1 (<= ~a19~0 9)) (.cse0 (<= 7 ~a19~0))) (or (and (<= ~a10~0 1) .cse0) (not (<= |old(~a1~0)| 23)) (and (<= ~a10~0 0) (<= ~a1~0 23)) (and .cse1 (<= 3 ~a10~0)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse1 .cse0) (not (<= |old(~a19~0)| 9)))) [2020-07-20 14:09:13,584 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:09:13,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:09:13 BoogieIcfgContainer [2020-07-20 14:09:13,617 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:09:13,627 INFO L168 Benchmark]: Toolchain (without parser) took 15611.47 ms. Allocated memory was 148.4 MB in the beginning and 425.2 MB in the end (delta: 276.8 MB). Free memory was 105.0 MB in the beginning and 177.7 MB in the end (delta: -72.7 MB). Peak memory consumption was 204.2 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:13,628 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 148.4 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-20 14:09:13,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 796.97 ms. Allocated memory was 148.4 MB in the beginning and 206.6 MB in the end (delta: 58.2 MB). Free memory was 104.6 MB in the beginning and 173.3 MB in the end (delta: -68.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:13,630 INFO L168 Benchmark]: Boogie Preprocessor took 100.96 ms. Allocated memory is still 206.6 MB. Free memory was 173.3 MB in the beginning and 168.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:13,633 INFO L168 Benchmark]: RCFGBuilder took 1354.72 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 168.4 MB in the beginning and 172.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:13,636 INFO L168 Benchmark]: TraceAbstraction took 13353.36 ms. Allocated memory was 234.4 MB in the beginning and 425.2 MB in the end (delta: 190.8 MB). Free memory was 172.6 MB in the beginning and 177.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 185.7 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:13,645 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 148.4 MB. Free memory is still 124.2 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 796.97 ms. Allocated memory was 148.4 MB in the beginning and 206.6 MB in the end (delta: 58.2 MB). Free memory was 104.6 MB in the beginning and 173.3 MB in the end (delta: -68.7 MB). Peak memory consumption was 31.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 100.96 ms. Allocated memory is still 206.6 MB. Free memory was 173.3 MB in the beginning and 168.4 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1354.72 ms. Allocated memory was 206.6 MB in the beginning and 234.4 MB in the end (delta: 27.8 MB). Free memory was 168.4 MB in the beginning and 172.6 MB in the end (delta: -4.2 MB). Peak memory consumption was 77.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13353.36 ms. Allocated memory was 234.4 MB in the beginning and 425.2 MB in the end (delta: 190.8 MB). Free memory was 172.6 MB in the beginning and 177.7 MB in the end (delta: -5.1 MB). Peak memory consumption was 185.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: 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 Derived loop invariant: (((((((a10 <= 1 && 7 <= a19) || !(\old(a1) <= 23)) || (a10 <= 0 && a1 <= 23)) || (a19 <= 9 && 3 <= a10)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 <= 9 && 7 <= a19)) || !(\old(a19) <= 9) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.0s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 7.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 661 SDtfs, 1683 SDslu, 173 SDs, 0 SdLazy, 4060 SolverSat, 809 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1759 GetRequests, 1732 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2650occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 908 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 81 PreInvPairs, 117 NumberOfFragments, 326 HoareAnnotationTreeSize, 81 FomulaSimplifications, 2089 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1049 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 1536 NumberOfCodeBlocks, 1536 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 1748 ConstructedInterpolants, 0 QuantifiedInterpolants, 662034 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2871 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 10 InterpolantComputations, 8 PerfectInterpolantSequences, 1018/1022 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...