/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 DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label10.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:11:10,190 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:11:10,193 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:11:10,211 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:11:10,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:11:10,214 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:11:10,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:11:10,226 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:11:10,231 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:11:10,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:11:10,234 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:11:10,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:11:10,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:11:10,239 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:11:10,242 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:11:10,243 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:11:10,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:11:10,247 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:11:10,248 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:11:10,254 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:11:10,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:11:10,259 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:11:10,260 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:11:10,261 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:11:10,263 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:11:10,273 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:11:10,274 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:11:10,275 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:11:10,276 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 20:11:10,289 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:11:10,290 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:11:10,291 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:11:10,291 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:11:10,291 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:11:10,292 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:11:10,292 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:11:10,292 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:11:10,292 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:11:10,292 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:11:10,292 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:11:10,293 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:11:10,293 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:11:10,293 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:11:10,293 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:11:10,293 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:11:10,294 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:11:10,294 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:11:10,294 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:11:10,294 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:11:10,294 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:11:10,295 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:11:10,295 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:11:10,295 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:11:10,295 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:11:10,295 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:11:10,296 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:10,296 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:11:10,296 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:11:10,296 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 -> DAGSIZE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 20:11:10,586 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:11:10,605 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:11:10,608 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:11:10,610 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:11:10,612 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:11:10,614 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label10.c [2020-07-21 20:11:10,687 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624cc6a8d/3eef2a3c19564ca7b2c9c1b63187044d/FLAG7c54a57e9 [2020-07-21 20:11:11,259 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:11:11,260 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label10.c [2020-07-21 20:11:11,274 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624cc6a8d/3eef2a3c19564ca7b2c9c1b63187044d/FLAG7c54a57e9 [2020-07-21 20:11:11,539 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/624cc6a8d/3eef2a3c19564ca7b2c9c1b63187044d [2020-07-21 20:11:11,550 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:11:11,553 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:11:11,554 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:11:11,554 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:11:11,558 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:11:11,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:11:11" (1/1) ... [2020-07-21 20:11:11,562 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19dbf883 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:11, skipping insertion in model container [2020-07-21 20:11:11,562 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:11:11" (1/1) ... [2020-07-21 20:11:11,569 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:11:11,619 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:11:12,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:11:12,159 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:11:12,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:11:12,279 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:11:12,281 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12 WrapperNode [2020-07-21 20:11:12,282 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:11:12,283 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:11:12,283 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:11:12,283 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:11:12,298 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,340 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,451 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (1/1) ... [2020-07-21 20:11:12,461 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:11:12,462 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:11:12,462 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:11:12,462 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:11:12,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (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 20:11:12,541 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:11:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:11:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:11:12,542 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:11:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:11:12,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:11:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:11:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:11:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:11:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:11:12,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:11:13,825 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:11:13,825 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:11:13,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:13 BoogieIcfgContainer [2020-07-21 20:11:13,832 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:11:13,833 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:11:13,833 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:11:13,836 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:11:13,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:11:11" (1/3) ... [2020-07-21 20:11:13,837 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6398f2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:13, skipping insertion in model container [2020-07-21 20:11:13,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:11:12" (2/3) ... [2020-07-21 20:11:13,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6398f2c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:11:13, skipping insertion in model container [2020-07-21 20:11:13,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:11:13" (3/3) ... [2020-07-21 20:11:13,840 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label10.c [2020-07-21 20:11:13,851 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:11:13,859 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:11:13,871 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:11:13,895 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:11:13,896 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:11:13,896 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:11:13,896 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:11:13,896 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:11:13,896 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:11:13,897 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:11:13,897 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:11:13,921 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 20:11:13,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2020-07-21 20:11:13,930 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:13,931 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:13,932 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:13,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:13,938 INFO L82 PathProgramCache]: Analyzing trace with hash 951236199, now seen corresponding path program 1 times [2020-07-21 20:11:13,947 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:13,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1674988979] [2020-07-21 20:11:13,948 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:14,082 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:14,082 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:14,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:11:14,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:14,165 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 20:11:14,165 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:14,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1674988979] [2020-07-21 20:11:14,167 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:14,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:14,169 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219709131] [2020-07-21 20:11:14,174 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:14,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:14,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:14,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:14,191 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 20:11:15,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:15,372 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 20:11:15,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:15,378 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2020-07-21 20:11:15,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:15,406 INFO L225 Difference]: With dead ends: 586 [2020-07-21 20:11:15,406 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 20:11:15,416 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:15,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 20:11:15,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 20:11:15,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 20:11:15,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 426 transitions. [2020-07-21 20:11:15,518 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 426 transitions. Word has length 54 [2020-07-21 20:11:15,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:15,519 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 426 transitions. [2020-07-21 20:11:15,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:15,519 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 426 transitions. [2020-07-21 20:11:15,525 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 20:11:15,526 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:15,526 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:15,741 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:15,741 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:15,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:15,743 INFO L82 PathProgramCache]: Analyzing trace with hash 2035742562, now seen corresponding path program 1 times [2020-07-21 20:11:15,743 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:15,744 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154219045] [2020-07-21 20:11:15,744 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:15,833 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:15,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:15,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 264 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:15,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:15,876 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:15,877 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:15,877 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154219045] [2020-07-21 20:11:15,877 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:15,877 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:15,878 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52153911] [2020-07-21 20:11:15,880 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:15,880 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:15,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:15,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:15,881 INFO L87 Difference]: Start difference. First operand 294 states and 426 transitions. Second operand 3 states. [2020-07-21 20:11:16,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:16,564 INFO L93 Difference]: Finished difference Result 868 states and 1277 transitions. [2020-07-21 20:11:16,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:16,564 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-21 20:11:16,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:16,575 INFO L225 Difference]: With dead ends: 868 [2020-07-21 20:11:16,575 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 20:11:16,577 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 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 20:11:16,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 20:11:16,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 20:11:16,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 20:11:16,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 762 transitions. [2020-07-21 20:11:16,626 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 762 transitions. Word has length 128 [2020-07-21 20:11:16,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:16,629 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 762 transitions. [2020-07-21 20:11:16,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:16,630 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 762 transitions. [2020-07-21 20:11:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 20:11:16,639 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:16,639 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:16,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:16,858 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:16,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:16,859 INFO L82 PathProgramCache]: Analyzing trace with hash 748722597, now seen corresponding path program 1 times [2020-07-21 20:11:16,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:16,861 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823054200] [2020-07-21 20:11:16,861 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:16,945 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:16,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:16,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:16,951 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:16,986 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:16,986 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:16,986 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823054200] [2020-07-21 20:11:16,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:16,987 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:16,987 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56314791] [2020-07-21 20:11:16,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:16,988 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:16,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:16,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:16,989 INFO L87 Difference]: Start difference. First operand 580 states and 762 transitions. Second operand 3 states. [2020-07-21 20:11:17,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:17,702 INFO L93 Difference]: Finished difference Result 1440 states and 1957 transitions. [2020-07-21 20:11:17,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:17,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-07-21 20:11:17,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:17,708 INFO L225 Difference]: With dead ends: 1440 [2020-07-21 20:11:17,708 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 20:11:17,710 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 131 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:17,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 20:11:17,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 866. [2020-07-21 20:11:17,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-21 20:11:17,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1139 transitions. [2020-07-21 20:11:17,735 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1139 transitions. Word has length 133 [2020-07-21 20:11:17,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:17,735 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1139 transitions. [2020-07-21 20:11:17,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:17,736 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1139 transitions. [2020-07-21 20:11:17,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 20:11:17,738 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:17,738 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:17,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:17,954 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:17,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:17,955 INFO L82 PathProgramCache]: Analyzing trace with hash -1340631419, now seen corresponding path program 1 times [2020-07-21 20:11:17,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:17,956 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1026636156] [2020-07-21 20:11:17,956 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:18,045 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:18,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:18,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:18,050 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:18,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:18,086 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1026636156] [2020-07-21 20:11:18,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:18,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:18,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720956587] [2020-07-21 20:11:18,087 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:18,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:18,088 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:18,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:18,088 INFO L87 Difference]: Start difference. First operand 866 states and 1139 transitions. Second operand 3 states. [2020-07-21 20:11:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:18,840 INFO L93 Difference]: Finished difference Result 2012 states and 2717 transitions. [2020-07-21 20:11:18,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:18,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-21 20:11:18,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:18,850 INFO L225 Difference]: With dead ends: 2012 [2020-07-21 20:11:18,850 INFO L226 Difference]: Without dead ends: 1152 [2020-07-21 20:11:18,852 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 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 20:11:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-21 20:11:18,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 1152. [2020-07-21 20:11:18,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-21 20:11:18,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1466 transitions. [2020-07-21 20:11:18,884 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1466 transitions. Word has length 149 [2020-07-21 20:11:18,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:18,884 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1466 transitions. [2020-07-21 20:11:18,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:18,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1466 transitions. [2020-07-21 20:11:18,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-21 20:11:18,888 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:18,889 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:19,093 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:19,094 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:19,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:19,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1416085165, now seen corresponding path program 1 times [2020-07-21 20:11:19,096 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:19,096 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [956264339] [2020-07-21 20:11:19,097 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:19,207 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:19,208 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:19,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:19,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:19,313 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:19,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:19,453 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 165 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:19,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [956264339] [2020-07-21 20:11:19,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:19,454 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:11:19,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586160333] [2020-07-21 20:11:19,455 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:11:19,455 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:19,455 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:11:19,455 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:11:19,455 INFO L87 Difference]: Start difference. First operand 1152 states and 1466 transitions. Second operand 7 states. [2020-07-21 20:11:20,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:20,976 INFO L93 Difference]: Finished difference Result 3951 states and 5238 transitions. [2020-07-21 20:11:20,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 20:11:20,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-21 20:11:20,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:20,991 INFO L225 Difference]: With dead ends: 3951 [2020-07-21 20:11:20,991 INFO L226 Difference]: Without dead ends: 1921 [2020-07-21 20:11:20,997 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 418 GetRequests, 407 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 20:11:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1921 states. [2020-07-21 20:11:21,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1921 to 1885. [2020-07-21 20:11:21,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-21 20:11:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2211 transitions. [2020-07-21 20:11:21,059 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2211 transitions. Word has length 206 [2020-07-21 20:11:21,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:21,060 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2211 transitions. [2020-07-21 20:11:21,060 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:11:21,060 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2211 transitions. [2020-07-21 20:11:21,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-21 20:11:21,065 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:21,065 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:21,280 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:21,281 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:21,281 INFO L82 PathProgramCache]: Analyzing trace with hash -552508610, now seen corresponding path program 1 times [2020-07-21 20:11:21,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:21,282 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [596495835] [2020-07-21 20:11:21,282 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:21,384 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:21,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:21,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:21,389 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:21,431 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-07-21 20:11:21,431 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:21,432 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [596495835] [2020-07-21 20:11:21,432 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:21,432 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:21,432 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17799572] [2020-07-21 20:11:21,433 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:21,433 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:21,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:21,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:21,434 INFO L87 Difference]: Start difference. First operand 1885 states and 2211 transitions. Second operand 3 states. [2020-07-21 20:11:21,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:21,994 INFO L93 Difference]: Finished difference Result 1887 states and 2212 transitions. [2020-07-21 20:11:21,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:21,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 221 [2020-07-21 20:11:21,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:22,009 INFO L225 Difference]: With dead ends: 1887 [2020-07-21 20:11:22,009 INFO L226 Difference]: Without dead ends: 1885 [2020-07-21 20:11:22,015 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:22,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2020-07-21 20:11:22,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1885. [2020-07-21 20:11:22,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1885 states. [2020-07-21 20:11:22,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1885 states to 1885 states and 2210 transitions. [2020-07-21 20:11:22,069 INFO L78 Accepts]: Start accepts. Automaton has 1885 states and 2210 transitions. Word has length 221 [2020-07-21 20:11:22,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:22,069 INFO L479 AbstractCegarLoop]: Abstraction has 1885 states and 2210 transitions. [2020-07-21 20:11:22,069 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:22,070 INFO L276 IsEmpty]: Start isEmpty. Operand 1885 states and 2210 transitions. [2020-07-21 20:11:22,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-21 20:11:22,074 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:22,074 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:22,287 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:22,288 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:22,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:22,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1577028555, now seen corresponding path program 1 times [2020-07-21 20:11:22,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:22,290 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [526439614] [2020-07-21 20:11:22,290 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:22,395 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:22,395 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:22,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 397 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:22,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:22,448 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:22,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:11:22,576 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 162 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:11:22,576 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [526439614] [2020-07-21 20:11:22,576 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:11:22,577 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:11:22,577 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746559544] [2020-07-21 20:11:22,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:11:22,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:22,578 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:11:22,578 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:11:22,578 INFO L87 Difference]: Start difference. First operand 1885 states and 2210 transitions. Second operand 6 states. [2020-07-21 20:11:23,432 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:23,433 INFO L93 Difference]: Finished difference Result 4086 states and 4866 transitions. [2020-07-21 20:11:23,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:11:23,434 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 222 [2020-07-21 20:11:23,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:23,447 INFO L225 Difference]: With dead ends: 4086 [2020-07-21 20:11:23,447 INFO L226 Difference]: Without dead ends: 2350 [2020-07-21 20:11:23,454 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 447 GetRequests, 438 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:11:23,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2350 states. [2020-07-21 20:11:23,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2350 to 2201. [2020-07-21 20:11:23,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2201 states. [2020-07-21 20:11:23,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2201 states to 2201 states and 2612 transitions. [2020-07-21 20:11:23,535 INFO L78 Accepts]: Start accepts. Automaton has 2201 states and 2612 transitions. Word has length 222 [2020-07-21 20:11:23,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:23,535 INFO L479 AbstractCegarLoop]: Abstraction has 2201 states and 2612 transitions. [2020-07-21 20:11:23,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:11:23,536 INFO L276 IsEmpty]: Start isEmpty. Operand 2201 states and 2612 transitions. [2020-07-21 20:11:23,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-07-21 20:11:23,541 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:23,541 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:23,755 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:23,756 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:23,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:23,757 INFO L82 PathProgramCache]: Analyzing trace with hash -648099628, now seen corresponding path program 1 times [2020-07-21 20:11:23,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:23,758 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1028009806] [2020-07-21 20:11:23,758 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:23,870 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:23,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:23,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 402 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:23,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:23,951 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 20:11:23,952 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:23,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1028009806] [2020-07-21 20:11:23,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:23,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:23,953 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000407718] [2020-07-21 20:11:23,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:23,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:23,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:23,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:23,954 INFO L87 Difference]: Start difference. First operand 2201 states and 2612 transitions. Second operand 3 states. [2020-07-21 20:11:24,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:24,480 INFO L93 Difference]: Finished difference Result 2348 states and 2762 transitions. [2020-07-21 20:11:24,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:24,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 229 [2020-07-21 20:11:24,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:24,495 INFO L225 Difference]: With dead ends: 2348 [2020-07-21 20:11:24,495 INFO L226 Difference]: Without dead ends: 2199 [2020-07-21 20:11:24,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 228 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:24,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2199 states. [2020-07-21 20:11:24,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2199 to 2054. [2020-07-21 20:11:24,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2054 states. [2020-07-21 20:11:24,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2054 states to 2054 states and 2428 transitions. [2020-07-21 20:11:24,554 INFO L78 Accepts]: Start accepts. Automaton has 2054 states and 2428 transitions. Word has length 229 [2020-07-21 20:11:24,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:24,555 INFO L479 AbstractCegarLoop]: Abstraction has 2054 states and 2428 transitions. [2020-07-21 20:11:24,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:24,555 INFO L276 IsEmpty]: Start isEmpty. Operand 2054 states and 2428 transitions. [2020-07-21 20:11:24,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2020-07-21 20:11:24,561 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:11:24,562 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:11:24,775 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:24,776 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:11:24,776 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:11:24,776 INFO L82 PathProgramCache]: Analyzing trace with hash 53533683, now seen corresponding path program 1 times [2020-07-21 20:11:24,777 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:11:24,778 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1245665097] [2020-07-21 20:11:24,778 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:24,905 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:11:24,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:11:24,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:11:24,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:11:24,967 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 20:11:24,968 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:11:24,968 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1245665097] [2020-07-21 20:11:24,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:11:24,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:11:24,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411331442] [2020-07-21 20:11:24,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:11:24,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:11:24,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:11:24,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:24,970 INFO L87 Difference]: Start difference. First operand 2054 states and 2428 transitions. Second operand 3 states. [2020-07-21 20:11:25,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:11:25,567 INFO L93 Difference]: Finished difference Result 3957 states and 4694 transitions. [2020-07-21 20:11:25,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:11:25,574 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 250 [2020-07-21 20:11:25,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:11:25,575 INFO L225 Difference]: With dead ends: 3957 [2020-07-21 20:11:25,575 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:11:25,586 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 248 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:11:25,586 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:11:25,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:11:25,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:11:25,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:11:25,587 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 250 [2020-07-21 20:11:25,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:11:25,588 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:11:25,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:11:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:11:25,588 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:11:25,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:11:25,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:11:26,618 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2020-07-21 20:11:26,745 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-07-21 20:11:26,859 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 32 [2020-07-21 20:11:26,863 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:11:26,864 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 20:11:26,864 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:11:26,864 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 20:11:26,864 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,864 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,865 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,865 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,865 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,865 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,865 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 20:11:26,866 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 20:11:26,866 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 20:11:26,866 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 20:11:26,867 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 20:11:26,868 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 20:11:26,869 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 20:11:26,869 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 20:11:26,869 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 20:11:26,869 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 20:11:26,869 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 20:11:26,870 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 20:11:26,870 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 20:11:26,870 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 148) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,871 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 20:11:26,872 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 20:11:26,873 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 20:11:26,874 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,875 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 20:11:26,876 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,877 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 20:11:26,878 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,879 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 20:11:26,880 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 20:11:26,881 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 20:11:26,882 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (not (<= |old(~a19~0)| 8))) (.cse4 (<= ~a19~0 |old(~a19~0)|)) (.cse5 (not (<= |old(~a1~0)| 23))) (.cse6 (<= ~a1~0 23)) (.cse7 (not (<= |old(~a10~0)| 1))) (.cse8 (not (< |old(~a19~0)| 10))) (.cse9 (not (<= 9 |old(~a19~0)|))) (.cse1 (not (<= 3 |old(~a10~0)|))) (.cse10 (<= 9 ~a19~0)) (.cse2 (<= ~a10~0 |old(~a10~0)|)) (.cse3 (<= 3 ~a10~0)) (.cse11 (< ~a19~0 10))) (and (or .cse0 .cse1 (and .cse2 .cse3 .cse4)) (or .cse0 (and .cse2 (<= 7 ~a19~0) .cse4) (not (<= 7 |old(~a19~0)|))) (or .cse5 .cse6 .cse7) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse5 .cse0 .cse4) (or (and (<= ~a10~0 1) .cse4) .cse7) (or (not (<= 4 |old(~a10~0)|)) .cse8 (<= 4 ~a10~0)) (or .cse8 .cse5 .cse6) (or .cse8 .cse9 (and .cse10 (<= ~a10~0 2) .cse11) (not (<= |old(~a10~0)| 2))) (or (and .cse10 .cse2) .cse9 .cse7) (or .cse8 .cse9 .cse1 (and .cse10 .cse2 .cse3 .cse11)))) [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 20:11:26,883 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,884 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 20:11:26,885 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 20:11:26,886 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:11:26,887 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= ~a1~0 23) (< ~a19~0 10)) [2020-07-21 20:11:26,887 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:11:26,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:11:26,888 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= ~a1~0 23) (< ~a19~0 10))) [2020-07-21 20:11:26,888 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:11:26,888 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (< ~a19~0 10))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a19~0 8) (<= ~a1~0 23)) (and (<= 3 ~a10~0) .cse0) (and (<= 7 ~a19~0) .cse0))) [2020-07-21 20:11:26,888 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 20:11:26,888 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 20:11:26,888 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (< ~a19~0 10))) (or (<= ~a10~0 1) (not (< |old(~a19~0)| 10)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a19~0 8) (<= ~a1~0 23)) (and (<= 3 ~a10~0) .cse0) (and (<= 7 ~a19~0) .cse0))) [2020-07-21 20:11:26,888 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 20:11:26,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:11:26 BoogieIcfgContainer [2020-07-21 20:11:26,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:11:26,910 INFO L168 Benchmark]: Toolchain (without parser) took 15358.78 ms. Allocated memory was 144.7 MB in the beginning and 416.3 MB in the end (delta: 271.6 MB). Free memory was 99.7 MB in the beginning and 161.0 MB in the end (delta: -61.3 MB). Peak memory consumption was 210.3 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:26,911 INFO L168 Benchmark]: CDTParser took 0.49 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 20:11:26,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 728.29 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.5 MB in the beginning and 169.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:26,913 INFO L168 Benchmark]: Boogie Preprocessor took 178.87 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:26,913 INFO L168 Benchmark]: RCFGBuilder took 1369.83 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 164.4 MB in the beginning and 180.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:26,914 INFO L168 Benchmark]: TraceAbstraction took 13075.54 ms. Allocated memory was 236.5 MB in the beginning and 416.3 MB in the end (delta: 179.8 MB). Free memory was 179.0 MB in the beginning and 161.0 MB in the end (delta: 18.1 MB). Peak memory consumption was 197.9 MB. Max. memory is 7.1 GB. [2020-07-21 20:11:26,918 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49 ms. Allocated memory is still 144.7 MB. Free memory was 119.7 MB in the beginning and 119.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 728.29 ms. Allocated memory was 144.7 MB in the beginning and 204.5 MB in the end (delta: 59.8 MB). Free memory was 99.5 MB in the beginning and 169.5 MB in the end (delta: -70.0 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 178.87 ms. Allocated memory is still 204.5 MB. Free memory was 169.5 MB in the beginning and 164.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1369.83 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 164.4 MB in the beginning and 180.5 MB in the end (delta: -16.0 MB). Peak memory consumption was 82.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 13075.54 ms. Allocated memory was 236.5 MB in the beginning and 416.3 MB in the end (delta: 179.8 MB). Free memory was 179.0 MB in the beginning and 161.0 MB in the end (delta: 18.1 MB). Peak memory consumption was 197.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 148]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((a10 <= 1 || !(\old(a19) < 10)) || !(\old(a1) <= 23)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (a19 <= 8 && a1 <= 23)) || (3 <= a10 && a19 < 10)) || (7 <= a19 && a19 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 7.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 707 SDtfs, 1653 SDslu, 158 SDs, 0 SdLazy, 4157 SolverSat, 751 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2022 GetRequests, 1995 SyntacticMatches, 3 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2201occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 330 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 77 PreInvPairs, 127 NumberOfFragments, 305 HoareAnnotationTreeSize, 77 FomulaSimplifications, 990 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 795 FormulaSimplificationTreeSizeReductionInter, 0.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1592 NumberOfCodeBlocks, 1592 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2009 ConstructedInterpolants, 0 QuantifiedInterpolants, 804357 SizeOfPredicates, 15 NumberOfNonLiveVariables, 2968 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1301/1309 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...