/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 BIGGEST_EQUIVALENCE_CLASS --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/Problem01_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:18:40,652 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:18:40,654 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:18:40,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:18:40,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:18:40,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:18:40,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:18:40,671 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:18:40,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:18:40,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:18:40,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:18:40,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:18:40,676 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:18:40,677 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:18:40,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:18:40,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:18:40,680 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:18:40,681 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:18:40,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:18:40,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:18:40,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:18:40,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:18:40,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:18:40,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:18:40,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:18:40,701 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:18:40,702 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:18:40,702 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:18:40,703 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:18:40,719 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:18:40,719 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:18:40,720 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:18:40,720 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:18:40,721 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:18:40,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:18:40,721 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:18:40,721 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:18:40,721 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:18:40,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:18:40,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:18:40,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:18:40,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:18:40,722 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:18:40,723 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:18:40,723 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:18:40,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:18:40,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:18:40,723 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:18:40,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:18:40,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:18:40,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:18:40,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:18:40,725 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:18:40,725 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:18:40,725 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:18:40,725 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:18:40,725 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:18:40,726 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:18:40,726 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 -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-21 01:18:41,026 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:18:41,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:18:41,042 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:18:41,044 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:18:41,044 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:18:41,045 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-07-21 01:18:41,127 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82b6cbaa7/a7036336587c4f1d9a3aa9351ca6f902/FLAG97d4680c1 [2020-07-21 01:18:41,735 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:18:41,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-07-21 01:18:41,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82b6cbaa7/a7036336587c4f1d9a3aa9351ca6f902/FLAG97d4680c1 [2020-07-21 01:18:41,956 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/82b6cbaa7/a7036336587c4f1d9a3aa9351ca6f902 [2020-07-21 01:18:41,967 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:18:41,970 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:18:41,971 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:18:41,972 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:18:41,976 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:18:41,977 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:41" (1/1) ... [2020-07-21 01:18:41,980 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4487fdd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:41, skipping insertion in model container [2020-07-21 01:18:41,980 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:18:41" (1/1) ... [2020-07-21 01:18:41,989 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:18:42,049 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:18:42,425 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:18:42,432 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:18:42,708 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:18:42,727 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:18:42,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42 WrapperNode [2020-07-21 01:18:42,728 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:18:42,728 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:18:42,728 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:18:42,729 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:18:42,742 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,742 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,760 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,760 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,802 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,819 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,825 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... [2020-07-21 01:18:42,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:18:42,835 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:18:42,836 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:18:42,836 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:18:42,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:18:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:18:42,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:18:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:18:42,920 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:18:42,920 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:18:42,921 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:18:44,069 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:18:44,069 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:18:44,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:44 BoogieIcfgContainer [2020-07-21 01:18:44,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:18:44,077 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:18:44,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:18:44,081 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:18:44,081 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:18:41" (1/3) ... [2020-07-21 01:18:44,082 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cd61fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:44, skipping insertion in model container [2020-07-21 01:18:44,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:18:42" (2/3) ... [2020-07-21 01:18:44,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42cd61fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:18:44, skipping insertion in model container [2020-07-21 01:18:44,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:18:44" (3/3) ... [2020-07-21 01:18:44,085 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label11.c [2020-07-21 01:18:44,095 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:18:44,103 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:18:44,117 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:18:44,144 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:18:44,145 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:18:44,145 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:18:44,145 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:18:44,145 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:18:44,146 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:18:44,146 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:18:44,146 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:18:44,170 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:18:44,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-21 01:18:44,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:18:44,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:18:44,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:18:44,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:18:44,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1377016033, now seen corresponding path program 1 times [2020-07-21 01:18:44,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:18:44,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1903045116] [2020-07-21 01:18:44,202 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 [2020-07-21 01:18:44,379 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:18:44,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:18:44,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:18:44,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:18:44,750 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:18:44,880 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:18:45,173 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 26 [2020-07-21 01:18:45,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:45,412 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:18:45,414 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1903045116] [2020-07-21 01:18:45,415 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:18:45,415 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:18:45,416 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472534602] [2020-07-21 01:18:45,425 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:18:45,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:18:45,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:18:45,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:18:45,445 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:18:47,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:18:47,157 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:18:47,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:18:47,159 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 115 [2020-07-21 01:18:47,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:18:47,172 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:18:47,172 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:18:47,179 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:18:47,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:18:47,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:18:47,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:18:47,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:18:47,239 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 115 [2020-07-21 01:18:47,239 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:18:47,240 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:18:47,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:18:47,240 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:18:47,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 01:18:47,244 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:18:47,244 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:18:47,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:18:47,459 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:18:47,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:18:47,460 INFO L82 PathProgramCache]: Analyzing trace with hash -698962844, now seen corresponding path program 1 times [2020-07-21 01:18:47,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:18:47,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2093545196] [2020-07-21 01:18:47,461 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 [2020-07-21 01:18:47,573 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:18:47,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:18:47,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:18:47,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:18:48,248 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:18:48,253 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:18:48,253 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:18:48,345 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:48,346 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:18:49,068 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:18:49,353 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:18:49,497 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:18:49,503 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:18:49,505 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:18:49,506 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:18:49,508 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:18:49,509 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,510 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:18:49,514 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:18:49,515 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:18:49,516 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,524 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,526 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,528 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:18:49,529 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:18:49,531 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:18:49,531 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:18:49,535 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,536 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:18:49,538 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,539 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:18:49,540 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:18:49,541 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:18:49,547 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:18:49,548 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:18:49,551 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:18:49,551 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:18:50,138 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:18:50,143 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:18:50,143 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:18:50,252 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:18:50,253 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:18:50,310 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:18:50,338 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:18:50,534 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:50,535 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2093545196] [2020-07-21 01:18:50,535 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:18:50,535 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:18:50,536 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415147833] [2020-07-21 01:18:50,539 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:18:50,539 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:18:50,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:18:50,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:18:50,550 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:18:51,565 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:18:52,084 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:18:52,383 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:18:52,842 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:18:53,091 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:18:53,550 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:18:55,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:18:55,691 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 01:18:55,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:18:55,692 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 123 [2020-07-21 01:18:55,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:18:55,704 INFO L225 Difference]: With dead ends: 588 [2020-07-21 01:18:55,704 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 01:18:55,707 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 218 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:18:55,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 01:18:55,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 01:18:55,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:18:55,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 01:18:55,767 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 123 [2020-07-21 01:18:55,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:18:55,768 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 01:18:55,768 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:18:55,768 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 01:18:55,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-07-21 01:18:55,772 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:18:55,773 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:18:55,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:18:55,987 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:18:55,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:18:55,988 INFO L82 PathProgramCache]: Analyzing trace with hash 860697510, now seen corresponding path program 1 times [2020-07-21 01:18:55,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:18:55,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142757133] [2020-07-21 01:18:55,990 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 [2020-07-21 01:18:56,099 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:18:56,100 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:18:56,101 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:18:56,105 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:18:56,144 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:56,144 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:18:56,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142757133] [2020-07-21 01:18:56,145 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:18:56,145 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:18:56,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [560746566] [2020-07-21 01:18:56,146 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:18:56,146 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:18:56,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:18:56,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:18:56,147 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 01:18:56,707 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:18:56,708 INFO L93 Difference]: Finished difference Result 1044 states and 1434 transitions. [2020-07-21 01:18:56,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:18:56,709 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-07-21 01:18:56,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:18:56,716 INFO L225 Difference]: With dead ends: 1044 [2020-07-21 01:18:56,716 INFO L226 Difference]: Without dead ends: 693 [2020-07-21 01:18:56,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:18:56,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states. [2020-07-21 01:18:56,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 693. [2020-07-21 01:18:56,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 693 states. [2020-07-21 01:18:56,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 693 states to 693 states and 869 transitions. [2020-07-21 01:18:56,756 INFO L78 Accepts]: Start accepts. Automaton has 693 states and 869 transitions. Word has length 126 [2020-07-21 01:18:56,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:18:56,757 INFO L479 AbstractCegarLoop]: Abstraction has 693 states and 869 transitions. [2020-07-21 01:18:56,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:18:56,757 INFO L276 IsEmpty]: Start isEmpty. Operand 693 states and 869 transitions. [2020-07-21 01:18:56,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-21 01:18:56,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:18:56,765 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:18:56,978 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:18:56,978 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:18:56,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:18:56,979 INFO L82 PathProgramCache]: Analyzing trace with hash 475291139, now seen corresponding path program 1 times [2020-07-21 01:18:56,980 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:18:56,981 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [671372385] [2020-07-21 01:18:56,981 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 [2020-07-21 01:18:57,092 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:18:57,093 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:18:57,094 INFO L263 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:18:57,097 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:18:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:57,136 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:18:57,201 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:57,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [671372385] [2020-07-21 01:18:57,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:18:57,202 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:18:57,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88014121] [2020-07-21 01:18:57,203 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:18:57,203 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:18:57,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:18:57,204 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:18:57,204 INFO L87 Difference]: Start difference. First operand 693 states and 869 transitions. Second operand 7 states. [2020-07-21 01:18:58,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:18:58,583 INFO L93 Difference]: Finished difference Result 2372 states and 3098 transitions. [2020-07-21 01:18:58,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:18:58,583 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 146 [2020-07-21 01:18:58,584 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:18:58,599 INFO L225 Difference]: With dead ends: 2372 [2020-07-21 01:18:58,599 INFO L226 Difference]: Without dead ends: 1745 [2020-07-21 01:18:58,602 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 295 GetRequests, 287 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:18:58,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1745 states. [2020-07-21 01:18:58,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1745 to 1545. [2020-07-21 01:18:58,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1545 states. [2020-07-21 01:18:58,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1983 transitions. [2020-07-21 01:18:58,678 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1983 transitions. Word has length 146 [2020-07-21 01:18:58,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:18:58,679 INFO L479 AbstractCegarLoop]: Abstraction has 1545 states and 1983 transitions. [2020-07-21 01:18:58,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:18:58,679 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1983 transitions. [2020-07-21 01:18:58,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-07-21 01:18:58,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:18:58,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:18:58,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:18:58,920 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:18:58,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:18:58,921 INFO L82 PathProgramCache]: Analyzing trace with hash 224154203, now seen corresponding path program 1 times [2020-07-21 01:18:58,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:18:58,922 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1302285234] [2020-07-21 01:18:58,922 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 [2020-07-21 01:18:59,025 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:18:59,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:18:59,026 INFO L263 TraceCheckSpWp]: Trace formula consists of 355 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 01:18:59,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:18:59,061 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:59,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:18:59,122 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:18:59,123 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1302285234] [2020-07-21 01:18:59,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:18:59,123 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:18:59,123 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315715094] [2020-07-21 01:18:59,124 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:18:59,124 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:18:59,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:18:59,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:18:59,125 INFO L87 Difference]: Start difference. First operand 1545 states and 1983 transitions. Second operand 6 states. [2020-07-21 01:18:59,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:18:59,841 INFO L93 Difference]: Finished difference Result 3223 states and 4220 transitions. [2020-07-21 01:18:59,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:18:59,841 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 151 [2020-07-21 01:18:59,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:18:59,853 INFO L225 Difference]: With dead ends: 3223 [2020-07-21 01:18:59,853 INFO L226 Difference]: Without dead ends: 1744 [2020-07-21 01:18:59,858 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 305 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:18:59,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1744 states. [2020-07-21 01:18:59,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1744 to 1565. [2020-07-21 01:18:59,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1565 states. [2020-07-21 01:18:59,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 1928 transitions. [2020-07-21 01:18:59,923 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 1928 transitions. Word has length 151 [2020-07-21 01:18:59,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:18:59,923 INFO L479 AbstractCegarLoop]: Abstraction has 1565 states and 1928 transitions. [2020-07-21 01:18:59,923 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:18:59,924 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 1928 transitions. [2020-07-21 01:18:59,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-21 01:18:59,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:18:59,929 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:00,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:00,143 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:00,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:00,145 INFO L82 PathProgramCache]: Analyzing trace with hash -1104528988, now seen corresponding path program 1 times [2020-07-21 01:19:00,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:00,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349023185] [2020-07-21 01:19:00,146 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 [2020-07-21 01:19:00,265 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:19:00,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:00,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:19:00,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:00,329 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 01:19:00,329 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:00,599 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:19:00,646 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:00,651 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:00,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:00,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:00,657 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:00,657 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:00,658 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 01:19:00,658 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:00,765 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 15 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-07-21 01:19:00,766 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349023185] [2020-07-21 01:19:00,768 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:00,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:00,769 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231864698] [2020-07-21 01:19:00,770 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:00,770 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:00,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:00,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:00,771 INFO L87 Difference]: Start difference. First operand 1565 states and 1928 transitions. Second operand 7 states. [2020-07-21 01:19:02,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:02,067 INFO L93 Difference]: Finished difference Result 3804 states and 4698 transitions. [2020-07-21 01:19:02,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:19:02,067 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 161 [2020-07-21 01:19:02,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:02,080 INFO L225 Difference]: With dead ends: 3804 [2020-07-21 01:19:02,081 INFO L226 Difference]: Without dead ends: 2027 [2020-07-21 01:19:02,085 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 318 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:19:02,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2027 states. [2020-07-21 01:19:02,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2027 to 1690. [2020-07-21 01:19:02,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1690 states. [2020-07-21 01:19:02,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1690 states to 1690 states and 1959 transitions. [2020-07-21 01:19:02,140 INFO L78 Accepts]: Start accepts. Automaton has 1690 states and 1959 transitions. Word has length 161 [2020-07-21 01:19:02,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:02,141 INFO L479 AbstractCegarLoop]: Abstraction has 1690 states and 1959 transitions. [2020-07-21 01:19:02,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:02,141 INFO L276 IsEmpty]: Start isEmpty. Operand 1690 states and 1959 transitions. [2020-07-21 01:19:02,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2020-07-21 01:19:02,147 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:02,148 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:02,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:02,361 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:02,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:02,362 INFO L82 PathProgramCache]: Analyzing trace with hash 203426984, now seen corresponding path program 1 times [2020-07-21 01:19:02,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:02,363 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557957591] [2020-07-21 01:19:02,363 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 [2020-07-21 01:19:02,501 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:02,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:02,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:19:02,507 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:02,569 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 01:19:02,569 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:02,769 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:19:02,815 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:02,816 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:02,817 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:02,817 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:02,818 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:02,819 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:02,819 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:02,820 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:02,820 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:02,821 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-21 01:19:02,821 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:02,923 INFO L134 CoverageAnalysis]: Checked inductivity of 117 backedges. 84 proven. 15 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2020-07-21 01:19:02,924 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557957591] [2020-07-21 01:19:02,924 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:02,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:02,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779697753] [2020-07-21 01:19:02,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:02,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:02,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:02,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:02,926 INFO L87 Difference]: Start difference. First operand 1690 states and 1959 transitions. Second operand 7 states. [2020-07-21 01:19:04,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:04,160 INFO L93 Difference]: Finished difference Result 4581 states and 5398 transitions. [2020-07-21 01:19:04,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:19:04,161 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 191 [2020-07-21 01:19:04,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:04,173 INFO L225 Difference]: With dead ends: 4581 [2020-07-21 01:19:04,173 INFO L226 Difference]: Without dead ends: 2812 [2020-07-21 01:19:04,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 391 GetRequests, 380 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:19:04,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2812 states. [2020-07-21 01:19:04,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2812 to 1839. [2020-07-21 01:19:04,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1839 states. [2020-07-21 01:19:04,237 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1839 states to 1839 states and 2043 transitions. [2020-07-21 01:19:04,238 INFO L78 Accepts]: Start accepts. Automaton has 1839 states and 2043 transitions. Word has length 191 [2020-07-21 01:19:04,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:04,238 INFO L479 AbstractCegarLoop]: Abstraction has 1839 states and 2043 transitions. [2020-07-21 01:19:04,238 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:04,239 INFO L276 IsEmpty]: Start isEmpty. Operand 1839 states and 2043 transitions. [2020-07-21 01:19:04,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-07-21 01:19:04,246 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:04,246 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:04,460 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:04,461 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:04,462 INFO L82 PathProgramCache]: Analyzing trace with hash 1335584305, now seen corresponding path program 1 times [2020-07-21 01:19:04,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:04,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972694304] [2020-07-21 01:19:04,463 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 [2020-07-21 01:19:04,580 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:04,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:04,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 01:19:04,586 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:04,615 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:19:04,615 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:19:04,685 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 123 proven. 6 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-07-21 01:19:04,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:04,898 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 01:19:04,948 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:04,949 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:04,950 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:04,951 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:04,952 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:04,953 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:04,953 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 2, 1] term [2020-07-21 01:19:04,954 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:04,979 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:05,037 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:05,038 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:05,200 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 108 proven. 47 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 01:19:05,201 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972694304] [2020-07-21 01:19:05,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:05,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 01:19:05,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086693729] [2020-07-21 01:19:05,202 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:19:05,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:05,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:19:05,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:19:05,203 INFO L87 Difference]: Start difference. First operand 1839 states and 2043 transitions. Second operand 8 states. [2020-07-21 01:19:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:06,145 INFO L93 Difference]: Finished difference Result 3759 states and 4234 transitions. [2020-07-21 01:19:06,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:19:06,146 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 213 [2020-07-21 01:19:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:06,154 INFO L225 Difference]: With dead ends: 3759 [2020-07-21 01:19:06,154 INFO L226 Difference]: Without dead ends: 1845 [2020-07-21 01:19:06,160 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 431 GetRequests, 421 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:19:06,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1845 states. [2020-07-21 01:19:06,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1845 to 1686. [2020-07-21 01:19:06,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1686 states. [2020-07-21 01:19:06,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1686 states to 1686 states and 1876 transitions. [2020-07-21 01:19:06,205 INFO L78 Accepts]: Start accepts. Automaton has 1686 states and 1876 transitions. Word has length 213 [2020-07-21 01:19:06,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:06,205 INFO L479 AbstractCegarLoop]: Abstraction has 1686 states and 1876 transitions. [2020-07-21 01:19:06,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:19:06,206 INFO L276 IsEmpty]: Start isEmpty. Operand 1686 states and 1876 transitions. [2020-07-21 01:19:06,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-07-21 01:19:06,213 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:06,213 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:06,428 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:06,429 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:06,430 INFO L82 PathProgramCache]: Analyzing trace with hash 1832682519, now seen corresponding path program 1 times [2020-07-21 01:19:06,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:06,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [938939832] [2020-07-21 01:19:06,430 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 [2020-07-21 01:19:06,572 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:06,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:06,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:19:06,578 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 193 proven. 2 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-21 01:19:06,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:06,758 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 162 proven. 33 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-07-21 01:19:06,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [938939832] [2020-07-21 01:19:06,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:06,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:06,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1494876901] [2020-07-21 01:19:06,760 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:06,761 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:06,761 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:06,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:06,762 INFO L87 Difference]: Start difference. First operand 1686 states and 1876 transitions. Second operand 7 states. [2020-07-21 01:19:07,900 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:07,901 INFO L93 Difference]: Finished difference Result 3445 states and 3852 transitions. [2020-07-21 01:19:07,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:19:07,901 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-07-21 01:19:07,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:07,909 INFO L225 Difference]: With dead ends: 3445 [2020-07-21 01:19:07,909 INFO L226 Difference]: Without dead ends: 1964 [2020-07-21 01:19:07,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 492 GetRequests, 481 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:19:07,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1964 states. [2020-07-21 01:19:07,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1964 to 1682. [2020-07-21 01:19:07,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1682 states. [2020-07-21 01:19:07,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1682 states to 1682 states and 1836 transitions. [2020-07-21 01:19:07,951 INFO L78 Accepts]: Start accepts. Automaton has 1682 states and 1836 transitions. Word has length 242 [2020-07-21 01:19:07,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:07,951 INFO L479 AbstractCegarLoop]: Abstraction has 1682 states and 1836 transitions. [2020-07-21 01:19:07,951 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:07,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1682 states and 1836 transitions. [2020-07-21 01:19:07,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-07-21 01:19:07,958 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:07,959 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:08,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:08,175 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:08,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:08,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1896129317, now seen corresponding path program 1 times [2020-07-21 01:19:08,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:08,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1965221026] [2020-07-21 01:19:08,176 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:08,307 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:19:08,308 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:08,309 INFO L263 TraceCheckSpWp]: Trace formula consists of 436 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:19:08,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:08,406 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 215 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-07-21 01:19:08,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:08,669 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 40 [2020-07-21 01:19:08,729 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:19:08,730 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,731 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:19:08,731 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:08,732 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,733 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,734 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:08,915 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 181 proven. 15 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2020-07-21 01:19:08,915 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1965221026] [2020-07-21 01:19:08,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:08,916 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:08,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923434411] [2020-07-21 01:19:08,917 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:08,917 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:08,917 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:08,918 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:08,918 INFO L87 Difference]: Start difference. First operand 1682 states and 1836 transitions. Second operand 7 states. [2020-07-21 01:19:10,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:10,142 INFO L93 Difference]: Finished difference Result 4134 states and 4569 transitions. [2020-07-21 01:19:10,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:19:10,150 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 269 [2020-07-21 01:19:10,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:10,160 INFO L225 Difference]: With dead ends: 4134 [2020-07-21 01:19:10,160 INFO L226 Difference]: Without dead ends: 2518 [2020-07-21 01:19:10,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 536 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:19:10,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2518 states. [2020-07-21 01:19:10,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2518 to 2512. [2020-07-21 01:19:10,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2512 states. [2020-07-21 01:19:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2512 states to 2512 states and 2764 transitions. [2020-07-21 01:19:10,221 INFO L78 Accepts]: Start accepts. Automaton has 2512 states and 2764 transitions. Word has length 269 [2020-07-21 01:19:10,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:10,221 INFO L479 AbstractCegarLoop]: Abstraction has 2512 states and 2764 transitions. [2020-07-21 01:19:10,222 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:10,222 INFO L276 IsEmpty]: Start isEmpty. Operand 2512 states and 2764 transitions. [2020-07-21 01:19:10,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 283 [2020-07-21 01:19:10,230 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:10,231 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:10,444 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:10,445 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:10,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:10,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1691239914, now seen corresponding path program 1 times [2020-07-21 01:19:10,446 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:10,446 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [140360923] [2020-07-21 01:19:10,447 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:10,600 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:19:10,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:10,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 645 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:19:10,607 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:10,633 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 2, 1] term [2020-07-21 01:19:10,634 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:19:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:19:10,694 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:10,797 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:10,798 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:19:10,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:11,002 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 237 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:19:11,003 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [140360923] [2020-07-21 01:19:11,003 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:11,003 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:11,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876224972] [2020-07-21 01:19:11,004 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:11,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:11,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:11,005 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:11,005 INFO L87 Difference]: Start difference. First operand 2512 states and 2764 transitions. Second operand 7 states. [2020-07-21 01:19:11,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:11,950 INFO L93 Difference]: Finished difference Result 4567 states and 5045 transitions. [2020-07-21 01:19:11,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:19:11,951 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 282 [2020-07-21 01:19:11,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:11,961 INFO L225 Difference]: With dead ends: 4567 [2020-07-21 01:19:11,961 INFO L226 Difference]: Without dead ends: 2540 [2020-07-21 01:19:11,966 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 569 GetRequests, 560 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:19:11,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2540 states. [2020-07-21 01:19:12,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2540 to 2518. [2020-07-21 01:19:12,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2518 states. [2020-07-21 01:19:12,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2518 states to 2518 states and 2747 transitions. [2020-07-21 01:19:12,017 INFO L78 Accepts]: Start accepts. Automaton has 2518 states and 2747 transitions. Word has length 282 [2020-07-21 01:19:12,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:12,018 INFO L479 AbstractCegarLoop]: Abstraction has 2518 states and 2747 transitions. [2020-07-21 01:19:12,018 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:12,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states and 2747 transitions. [2020-07-21 01:19:12,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 303 [2020-07-21 01:19:12,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:12,027 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:12,242 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:12,243 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:12,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:12,243 INFO L82 PathProgramCache]: Analyzing trace with hash -160157762, now seen corresponding path program 1 times [2020-07-21 01:19:12,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:12,244 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623430727] [2020-07-21 01:19:12,244 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:12,427 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:19:12,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:12,429 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:19:12,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:12,453 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 1] term [2020-07-21 01:19:12,454 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:19:12,555 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:19:12,555 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:19:12,694 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:12,695 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:12,695 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:12,696 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:12,697 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:12,698 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:12,699 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:12,700 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:19:12,724 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:19:12,885 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 297 proven. 2 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:19:12,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623430727] [2020-07-21 01:19:12,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:19:12,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:19:12,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742249483] [2020-07-21 01:19:12,887 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:19:12,887 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:12,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:19:12,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:19:12,888 INFO L87 Difference]: Start difference. First operand 2518 states and 2747 transitions. Second operand 7 states. [2020-07-21 01:19:13,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:13,878 INFO L93 Difference]: Finished difference Result 4990 states and 5492 transitions. [2020-07-21 01:19:13,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:19:13,879 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 302 [2020-07-21 01:19:13,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:13,890 INFO L225 Difference]: With dead ends: 4990 [2020-07-21 01:19:13,891 INFO L226 Difference]: Without dead ends: 2538 [2020-07-21 01:19:13,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 600 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:19:13,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2538 states. [2020-07-21 01:19:13,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2538 to 2516. [2020-07-21 01:19:13,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2516 states. [2020-07-21 01:19:13,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2516 states to 2516 states and 2710 transitions. [2020-07-21 01:19:13,950 INFO L78 Accepts]: Start accepts. Automaton has 2516 states and 2710 transitions. Word has length 302 [2020-07-21 01:19:13,950 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:13,950 INFO L479 AbstractCegarLoop]: Abstraction has 2516 states and 2710 transitions. [2020-07-21 01:19:13,950 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:19:13,951 INFO L276 IsEmpty]: Start isEmpty. Operand 2516 states and 2710 transitions. [2020-07-21 01:19:13,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 312 [2020-07-21 01:19:13,961 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:13,961 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:19:14,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:14,175 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:14,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:14,175 INFO L82 PathProgramCache]: Analyzing trace with hash 890362723, now seen corresponding path program 1 times [2020-07-21 01:19:14,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:14,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114321780] [2020-07-21 01:19:14,176 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:14,413 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:19:14,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:14,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:19:14,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 487 backedges. 193 proven. 0 refuted. 0 times theorem prover too weak. 294 trivial. 0 not checked. [2020-07-21 01:19:14,466 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:19:14,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114321780] [2020-07-21 01:19:14,467 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:19:14,467 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:19:14,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676127649] [2020-07-21 01:19:14,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:19:14,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:19:14,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:19:14,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:19:14,468 INFO L87 Difference]: Start difference. First operand 2516 states and 2710 transitions. Second operand 3 states. [2020-07-21 01:19:14,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:19:14,970 INFO L93 Difference]: Finished difference Result 4964 states and 5348 transitions. [2020-07-21 01:19:14,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:19:14,970 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 311 [2020-07-21 01:19:14,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:19:14,971 INFO L225 Difference]: With dead ends: 4964 [2020-07-21 01:19:14,971 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:19:14,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 310 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:19:14,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:19:14,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:19:14,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:19:14,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:19:14,981 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 311 [2020-07-21 01:19:14,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:19:14,981 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:19:14,981 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:19:14,981 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:19:14,981 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:19:15,195 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:15,198 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:19:15,831 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 238 DAG size of output: 213 [2020-07-21 01:19:16,060 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 202 [2020-07-21 01:19:17,996 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 225 DAG size of output: 121 [2020-07-21 01:19:18,961 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 68 [2020-07-21 01:19:19,897 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 68 [2020-07-21 01:19:19,902 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:19:19,902 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:19:19,902 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:19:19,902 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:19:19,903 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:19:19,903 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,903 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,903 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,903 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,904 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,904 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,904 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:19:19,904 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:19:19,904 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:19:19,904 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,905 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:19:19,906 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:19:19,907 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:19:19,908 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,909 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:19:19,910 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:19:19,911 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:19:19,912 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,913 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:19:19,914 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:19:19,915 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:19:19,916 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,917 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:19:19,918 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:19:19,919 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:19:19,919 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse29 (= 8 ~a12~0)) (.cse17 (not (<= |old(~a8~0)| 13)))) (let ((.cse8 (= 1 |old(~a21~0)|)) (.cse19 (= ~a7~0 |old(~a7~0)|)) (.cse14 (= ~a20~0 |old(~a20~0)|)) (.cse12 (<= ~a16~0 |old(~a16~0)|)) (.cse20 (<= ~a8~0 13)) (.cse28 (<= ~a16~0 4)) (.cse7 (= ~a21~0 |old(~a21~0)|)) (.cse27 (or .cse17 (not (<= |old(~a16~0)| 4)))) (.cse23 (not (<= |old(~a7~0)| 0))) (.cse26 (not .cse29))) (let ((.cse13 (= 1 ~a7~0)) (.cse0 (and .cse27 (or .cse23 .cse17 .cse26))) (.cse2 (and .cse19 .cse14 (or (and .cse12 .cse20 (<= ~a7~0 0) .cse29) (and .cse12 .cse20 .cse28)) .cse7)) (.cse4 (or (and .cse12 .cse19 .cse20 .cse14 .cse28) (and .cse12 .cse19 .cse20 (<= 6 ~a16~0) .cse14))) (.cse21 (= 1 ~a17~0)) (.cse9 (and (or .cse17 (not (<= 6 |old(~a16~0)|))) .cse27)) (.cse11 (not (= 1 |old(~a7~0)|))) (.cse10 (not (<= |old(~a17~0)| 0))) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse6 (<= |old(~a16~0)| ~a16~0)) (.cse1 (not (= 1 |old(~a20~0)|))) (.cse22 (not (= 15 |old(~a8~0)|))) (.cse15 (not (<= |old(~a16~0)| 5))) (.cse18 (not (= 1 |old(~a17~0)|))) (.cse24 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse16 (not (<= 5 |old(~a16~0)|))) (.cse3 (not .cse8)) (.cse25 (= 15 ~a8~0))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and .cse4 .cse5 .cse6 .cse7) .cse8 .cse9 .cse10) (or .cse11 (and .cse12 .cse13 .cse5 .cse6 .cse14 .cse7) .cse15 .cse3 .cse10) (or .cse11 (and .cse12 .cse13 (<= 5 ~a16~0) .cse7) .cse16 .cse3) (or .cse15 .cse17 .cse18 .cse16 (and .cse19 .cse20 .cse21 (<= ~a16~0 5) (< 4 ~a16~0) .cse14 .cse7)) (or .cse0 .cse2 .cse15 .cse3) (or (and .cse4 .cse6 .cse21 .cse7) .cse15 .cse18 .cse9) (or (not (= 5 |old(~a16~0)|)) .cse22 .cse23 (not (<= |old(~a20~0)| 0)) .cse18 .cse24 .cse3 .cse25 .cse26) (or .cse11 .cse15 (not (< 4 |old(~a16~0)|)) .cse14 .cse3) (or (and .cse12 .cse19 .cse5 .cse6 .cse14 .cse7) .cse23 .cse3 .cse10 .cse26) (or .cse23 (and .cse12 .cse19 .cse5 .cse6 (= 1 ~a21~0) .cse14) .cse18 .cse3 .cse26) (or .cse1 .cse22 .cse23 .cse15 .cse18 .cse24 .cse16 .cse3 .cse25 .cse26))))) [2020-07-21 01:19:19,919 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:19:19,919 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,919 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:19:19,920 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,921 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:19:19,922 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:19:19,923 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:19:19,924 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:19:19,925 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:19:19,926 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:19:19,926 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:19:19,926 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:19:19,926 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:19:19,926 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:19:19,927 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (<= ~a8~0 13))) (let ((.cse3 (and .cse4 (<= ~a16~0 4))) (.cse1 (<= ~a7~0 0)) (.cse11 (= 8 ~a12~0))) (let ((.cse6 (= 1 ~a17~0)) (.cse8 (or .cse3 (and .cse4 .cse1 .cse11))) (.cse9 (= 1 ~a7~0)) (.cse10 (not (= 1 |old(~a7~0)|))) (.cse0 (<= ~a17~0 0)) (.cse7 (<= ~a16~0 5)) (.cse5 (< 4 |old(~a16~0)|)) (.cse2 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (or .cse3 (and .cse4 (<= 6 ~a16~0))) (not .cse2)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not .cse5) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse6 .cse2) (and .cse4 .cse6 .cse7) (and .cse8 .cse7 .cse2) (not (= 1 |old(~a20~0)|)) (not (<= |old(~a16~0)| 5)) (and .cse9 .cse10 .cse7 .cse5 .cse2 (< 4 ~a16~0)) (and .cse8 .cse2 (= 1 ~a20~0)) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse10 .cse0 .cse7 .cse5 .cse2) (not .cse11))))) [2020-07-21 01:19:19,927 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:19:19,927 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:19:19,927 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse4 (<= ~a8~0 13))) (let ((.cse3 (and .cse4 (<= ~a16~0 4))) (.cse1 (<= ~a7~0 0)) (.cse11 (= 8 ~a12~0))) (let ((.cse6 (= 1 ~a17~0)) (.cse8 (or .cse3 (and .cse4 .cse1 .cse11))) (.cse9 (= 1 ~a7~0)) (.cse10 (not (= 1 |old(~a7~0)|))) (.cse0 (<= ~a17~0 0)) (.cse7 (<= ~a16~0 5)) (.cse5 (< 4 |old(~a16~0)|)) (.cse2 (= 1 ~a21~0))) (or (and .cse0 .cse1 .cse2) (and .cse0 (or .cse3 (and .cse4 (<= 6 ~a16~0))) (not .cse2)) (not (= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not .cse5) (not (= 1 |old(~a17~0)|)) (and .cse1 .cse6 .cse2) (and .cse4 .cse6 .cse7) (and .cse8 .cse7 .cse2) (not (= 1 |old(~a20~0)|)) (not (<= |old(~a16~0)| 5)) (and .cse9 .cse10 .cse7 .cse5 .cse2 (< 4 ~a16~0)) (and .cse8 .cse2 (= 1 ~a20~0)) (not (= 1 |old(~a21~0)|)) (and .cse9 .cse10 .cse0 .cse7 .cse5 .cse2) (not .cse11))))) [2020-07-21 01:19:19,927 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:19:19,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:19:19 BoogieIcfgContainer [2020-07-21 01:19:19,950 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:19:19,952 INFO L168 Benchmark]: Toolchain (without parser) took 37983.70 ms. Allocated memory was 137.9 MB in the beginning and 639.1 MB in the end (delta: 501.2 MB). Free memory was 101.2 MB in the beginning and 94.0 MB in the end (delta: 7.2 MB). Peak memory consumption was 512.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:19,953 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 01:19:19,953 INFO L168 Benchmark]: CACSL2BoogieTranslator took 756.60 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 100.8 MB in the beginning and 171.1 MB in the end (delta: -70.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:19,954 INFO L168 Benchmark]: Boogie Preprocessor took 103.68 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 165.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:19,955 INFO L168 Benchmark]: RCFGBuilder took 1240.38 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 165.5 MB in the beginning and 180.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:19,956 INFO L168 Benchmark]: TraceAbstraction took 35872.86 ms. Allocated memory was 236.5 MB in the beginning and 639.1 MB in the end (delta: 402.7 MB). Free memory was 180.4 MB in the beginning and 94.0 MB in the end (delta: 86.4 MB). Peak memory consumption was 493.2 MB. Max. memory is 7.1 GB. [2020-07-21 01:19:19,959 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 756.60 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 100.8 MB in the beginning and 171.1 MB in the end (delta: -70.3 MB). Peak memory consumption was 36.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.68 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 165.5 MB in the end (delta: 5.7 MB). Peak memory consumption was 5.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1240.38 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 165.5 MB in the beginning and 180.4 MB in the end (delta: -14.9 MB). Peak memory consumption was 83.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 35872.86 ms. Allocated memory was 236.5 MB in the beginning and 639.1 MB in the end (delta: 402.7 MB). Free memory was 180.4 MB in the beginning and 94.0 MB in the end (delta: 86.4 MB). Peak memory consumption was 493.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 503]: 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: 583]: Loop Invariant Derived loop invariant: ((((((((((((((((a17 <= 0 && a7 <= 0) && 1 == a21) || ((a17 <= 0 && ((a8 <= 13 && a16 <= 4) || (a8 <= 13 && 6 <= a16))) && !(1 == a21))) || !(15 == \old(a8))) || !(\old(a7) <= 0)) || !(4 < \old(a16))) || !(1 == \old(a17))) || ((a7 <= 0 && 1 == a17) && 1 == a21)) || ((a8 <= 13 && 1 == a17) && a16 <= 5)) || ((((a8 <= 13 && a16 <= 4) || ((a8 <= 13 && a7 <= 0) && 8 == a12)) && a16 <= 5) && 1 == a21)) || !(1 == \old(a20))) || !(\old(a16) <= 5)) || (((((1 == a7 && !(1 == \old(a7))) && a16 <= 5) && 4 < \old(a16)) && 1 == a21) && 4 < a16)) || ((((a8 <= 13 && a16 <= 4) || ((a8 <= 13 && a7 <= 0) && 8 == a12)) && 1 == a21) && 1 == a20)) || !(1 == \old(a21))) || (((((1 == a7 && !(1 == \old(a7))) && a17 <= 0) && a16 <= 5) && 4 < \old(a16)) && 1 == a21)) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.0s, OverallIterations: 13, TraceHistogramMax: 7, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 676 SDtfs, 6593 SDslu, 646 SDs, 0 SdLazy, 12690 SolverSat, 1519 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 4788 GetRequests, 4637 SyntacticMatches, 12 SemanticMatches, 139 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 602 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2518occurred in iteration=11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 2214 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 171 PreInvPairs, 223 NumberOfFragments, 1031 HoareAnnotationTreeSize, 171 FomulaSimplifications, 20445 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 14985 FormulaSimplificationTreeSizeReductionInter, 3.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.4s InterpolantComputationTime, 2632 NumberOfCodeBlocks, 1674 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 4689 ConstructedInterpolants, 0 QuantifiedInterpolants, 4367025 SizeOfPredicates, 64 NumberOfNonLiveVariables, 5797 ConjunctsInSsa, 214 ConjunctsInUnsatCore, 23 InterpolantComputations, 3 PerfectInterpolantSequences, 3790/3949 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...