/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:54:55,617 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:54:55,619 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:54:55,632 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:54:55,633 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:54:55,634 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:54:55,635 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:54:55,636 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:54:55,638 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:54:55,639 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:54:55,640 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:54:55,641 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:54:55,641 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:54:55,642 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:54:55,643 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:54:55,644 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:54:55,645 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:54:55,646 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:54:55,647 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:54:55,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:54:55,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:54:55,652 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:54:55,653 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:54:55,654 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:54:55,657 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:54:55,665 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:54:55,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:54:55,666 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:54:55,667 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 13:54:55,681 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:54:55,681 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:54:55,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:54:55,682 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:54:55,683 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:54:55,683 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:54:55,683 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:54:55,683 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:54:55,684 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:54:55,684 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:54:55,684 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:54:55,684 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:54:55,684 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:54:55,684 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:54:55,685 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:54:55,685 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:54:55,685 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:54:55,685 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:54:55,686 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:54:55,686 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:54:55,686 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:54:55,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:54:55,686 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:54:55,687 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:54:55,687 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:54:55,687 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:54:55,687 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:54:55,687 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:54:55,687 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:54:55,688 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 13:54:56,024 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:54:56,046 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:54:56,050 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:54:56,052 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:54:56,052 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:54:56,053 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-07-21 13:54:56,126 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14e2cb18/18eb8cfdc02e42fe931931ed55730642/FLAG5fd347c52 [2020-07-21 13:54:56,635 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:54:56,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-07-21 13:54:56,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14e2cb18/18eb8cfdc02e42fe931931ed55730642/FLAG5fd347c52 [2020-07-21 13:54:56,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d14e2cb18/18eb8cfdc02e42fe931931ed55730642 [2020-07-21 13:54:56,944 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:54:56,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:54:56,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:54:56,948 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:54:56,951 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:54:56,952 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:54:56" (1/1) ... [2020-07-21 13:54:56,955 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32cd7eb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:56, skipping insertion in model container [2020-07-21 13:54:56,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:54:56" (1/1) ... [2020-07-21 13:54:56,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:54:57,020 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:54:57,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:54:57,571 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:54:57,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:54:57,772 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:54:57,776 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57 WrapperNode [2020-07-21 13:54:57,776 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:54:57,777 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:54:57,777 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:54:57,778 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:54:57,800 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,819 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,876 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (1/1) ... [2020-07-21 13:54:57,885 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:54:57,885 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:54:57,886 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:54:57,886 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:54:57,887 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (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 13:54:57,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:54:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:54:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:54:57,957 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:54:57,957 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:54:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:54:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:54:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:54:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:54:57,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:54:57,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:54:59,331 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:54:59,332 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:54:59,338 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:54:59 BoogieIcfgContainer [2020-07-21 13:54:59,339 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:54:59,340 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:54:59,340 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:54:59,343 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:54:59,343 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:54:56" (1/3) ... [2020-07-21 13:54:59,344 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442ab87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:54:59, skipping insertion in model container [2020-07-21 13:54:59,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:54:57" (2/3) ... [2020-07-21 13:54:59,345 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442ab87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:54:59, skipping insertion in model container [2020-07-21 13:54:59,345 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:54:59" (3/3) ... [2020-07-21 13:54:59,347 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label52.c [2020-07-21 13:54:59,358 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:54:59,366 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:54:59,381 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:54:59,408 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:54:59,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:54:59,409 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:54:59,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:54:59,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:54:59,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:54:59,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:54:59,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:54:59,435 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 13:54:59,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-21 13:54:59,445 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:54:59,446 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] [2020-07-21 13:54:59,447 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:54:59,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:54:59,454 INFO L82 PathProgramCache]: Analyzing trace with hash -1515832586, now seen corresponding path program 1 times [2020-07-21 13:54:59,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:54:59,465 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899670085] [2020-07-21 13:54:59,465 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 13:54:59,626 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:54:59,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:54:59,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:54:59,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:54:59,700 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 13:54:59,700 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:54:59,701 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899670085] [2020-07-21 13:54:59,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:54:59,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:54:59,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072146017] [2020-07-21 13:54:59,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:54:59,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:54:59,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:54:59,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:54:59,726 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 13:55:00,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:00,764 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-21 13:55:00,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:55:00,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-21 13:55:00,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:00,783 INFO L225 Difference]: With dead ends: 571 [2020-07-21 13:55:00,784 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 13:55:00,791 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 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 13:55:00,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 13:55:00,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 13:55:00,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 13:55:00,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-21 13:55:00,863 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 47 [2020-07-21 13:55:00,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:00,864 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-21 13:55:00,864 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:55:00,865 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-21 13:55:00,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-21 13:55:00,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:00,871 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:01,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:01,084 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:01,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:01,085 INFO L82 PathProgramCache]: Analyzing trace with hash -847678062, now seen corresponding path program 1 times [2020-07-21 13:55:01,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:01,086 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1472710260] [2020-07-21 13:55:01,087 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 13:55:01,176 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:01,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:01,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:01,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:01,223 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:01,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:55:01,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1472710260] [2020-07-21 13:55:01,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:55:01,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:55:01,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [151096084] [2020-07-21 13:55:01,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:55:01,227 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:01,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:55:01,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:55:01,227 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-21 13:55:01,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:01,901 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-21 13:55:01,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:55:01,902 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 117 [2020-07-21 13:55:01,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:01,907 INFO L225 Difference]: With dead ends: 725 [2020-07-21 13:55:01,907 INFO L226 Difference]: Without dead ends: 437 [2020-07-21 13:55:01,909 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 115 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 13:55:01,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-21 13:55:01,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-21 13:55:01,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-21 13:55:01,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 593 transitions. [2020-07-21 13:55:01,935 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 593 transitions. Word has length 117 [2020-07-21 13:55:01,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:01,936 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 593 transitions. [2020-07-21 13:55:01,936 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:55:01,937 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 593 transitions. [2020-07-21 13:55:01,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-07-21 13:55:01,939 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:01,939 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:55:02,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:02,157 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:02,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:02,158 INFO L82 PathProgramCache]: Analyzing trace with hash -1364131787, now seen corresponding path program 1 times [2020-07-21 13:55:02,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:02,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288238267] [2020-07-21 13:55:02,159 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 13:55:02,239 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:02,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:02,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 259 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:02,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:02,275 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:02,275 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:55:02,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288238267] [2020-07-21 13:55:02,276 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:55:02,276 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:55:02,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851874125] [2020-07-21 13:55:02,277 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:55:02,277 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:02,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:55:02,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:55:02,278 INFO L87 Difference]: Start difference. First operand 437 states and 593 transitions. Second operand 3 states. [2020-07-21 13:55:02,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:02,976 INFO L93 Difference]: Finished difference Result 868 states and 1196 transitions. [2020-07-21 13:55:02,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:55:02,978 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 124 [2020-07-21 13:55:02,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:02,988 INFO L225 Difference]: With dead ends: 868 [2020-07-21 13:55:02,988 INFO L226 Difference]: Without dead ends: 866 [2020-07-21 13:55:02,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 122 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 13:55:02,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 866 states. [2020-07-21 13:55:03,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 866 to 580. [2020-07-21 13:55:03,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 13:55:03,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 816 transitions. [2020-07-21 13:55:03,044 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 816 transitions. Word has length 124 [2020-07-21 13:55:03,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:03,045 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 816 transitions. [2020-07-21 13:55:03,045 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:55:03,045 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 816 transitions. [2020-07-21 13:55:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2020-07-21 13:55:03,050 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:03,050 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:55:03,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:03,265 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:03,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:03,266 INFO L82 PathProgramCache]: Analyzing trace with hash 762422009, now seen corresponding path program 1 times [2020-07-21 13:55:03,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:03,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [233151449] [2020-07-21 13:55:03,268 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 13:55:03,375 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:03,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:03,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:03,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:03,475 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:03,475 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:55:03,601 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:03,601 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [233151449] [2020-07-21 13:55:03,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:55:03,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:55:03,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915057322] [2020-07-21 13:55:03,603 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:55:03,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:03,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:55:03,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:55:03,604 INFO L87 Difference]: Start difference. First operand 580 states and 816 transitions. Second operand 7 states. [2020-07-21 13:55:04,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:04,669 INFO L93 Difference]: Finished difference Result 1460 states and 2120 transitions. [2020-07-21 13:55:04,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:55:04,669 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 214 [2020-07-21 13:55:04,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:04,676 INFO L225 Difference]: With dead ends: 1460 [2020-07-21 13:55:04,677 INFO L226 Difference]: Without dead ends: 886 [2020-07-21 13:55:04,678 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 430 GetRequests, 422 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:55:04,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 886 states. [2020-07-21 13:55:04,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 886 to 882. [2020-07-21 13:55:04,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 882 states. [2020-07-21 13:55:04,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 882 states to 882 states and 1276 transitions. [2020-07-21 13:55:04,713 INFO L78 Accepts]: Start accepts. Automaton has 882 states and 1276 transitions. Word has length 214 [2020-07-21 13:55:04,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:04,714 INFO L479 AbstractCegarLoop]: Abstraction has 882 states and 1276 transitions. [2020-07-21 13:55:04,714 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:55:04,714 INFO L276 IsEmpty]: Start isEmpty. Operand 882 states and 1276 transitions. [2020-07-21 13:55:04,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-07-21 13:55:04,720 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:04,720 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 13:55:04,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:04,935 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:04,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:04,937 INFO L82 PathProgramCache]: Analyzing trace with hash 1540243501, now seen corresponding path program 1 times [2020-07-21 13:55:04,937 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:04,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1774219769] [2020-07-21 13:55:04,938 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 13:55:05,049 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:05,050 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:05,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:05,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:05,129 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-21 13:55:05,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:55:05,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1774219769] [2020-07-21 13:55:05,130 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:55:05,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:55:05,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939718738] [2020-07-21 13:55:05,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:55:05,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:05,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:55:05,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:55:05,133 INFO L87 Difference]: Start difference. First operand 882 states and 1276 transitions. Second operand 3 states. [2020-07-21 13:55:05,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:05,915 INFO L93 Difference]: Finished difference Result 2483 states and 3667 transitions. [2020-07-21 13:55:05,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:55:05,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 224 [2020-07-21 13:55:05,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:05,927 INFO L225 Difference]: With dead ends: 2483 [2020-07-21 13:55:05,927 INFO L226 Difference]: Without dead ends: 1607 [2020-07-21 13:55:05,929 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 223 GetRequests, 221 SyntacticMatches, 1 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 13:55:05,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1607 states. [2020-07-21 13:55:05,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1607 to 1462. [2020-07-21 13:55:05,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1462 states. [2020-07-21 13:55:05,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1462 states to 1462 states and 2013 transitions. [2020-07-21 13:55:05,985 INFO L78 Accepts]: Start accepts. Automaton has 1462 states and 2013 transitions. Word has length 224 [2020-07-21 13:55:05,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:05,986 INFO L479 AbstractCegarLoop]: Abstraction has 1462 states and 2013 transitions. [2020-07-21 13:55:05,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:55:05,986 INFO L276 IsEmpty]: Start isEmpty. Operand 1462 states and 2013 transitions. [2020-07-21 13:55:05,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-07-21 13:55:05,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:05,994 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:55:06,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:06,208 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:06,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:06,209 INFO L82 PathProgramCache]: Analyzing trace with hash 1679147641, now seen corresponding path program 1 times [2020-07-21 13:55:06,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:06,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [318310207] [2020-07-21 13:55:06,209 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 13:55:06,334 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:06,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:06,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:06,339 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:06,420 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:06,421 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:55:06,562 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:06,562 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [318310207] [2020-07-21 13:55:06,562 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:55:06,563 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:55:06,563 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802314654] [2020-07-21 13:55:06,564 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:55:06,564 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:06,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:55:06,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:55:06,574 INFO L87 Difference]: Start difference. First operand 1462 states and 2013 transitions. Second operand 6 states. [2020-07-21 13:55:07,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:07,796 INFO L93 Difference]: Finished difference Result 3254 states and 4548 transitions. [2020-07-21 13:55:07,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:55:07,797 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 242 [2020-07-21 13:55:07,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:07,810 INFO L225 Difference]: With dead ends: 3254 [2020-07-21 13:55:07,810 INFO L226 Difference]: Without dead ends: 1798 [2020-07-21 13:55:07,824 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 480 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:55:07,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1798 states. [2020-07-21 13:55:07,871 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1798 to 1778. [2020-07-21 13:55:07,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1778 states. [2020-07-21 13:55:07,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1778 states to 1778 states and 2113 transitions. [2020-07-21 13:55:07,878 INFO L78 Accepts]: Start accepts. Automaton has 1778 states and 2113 transitions. Word has length 242 [2020-07-21 13:55:07,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:07,879 INFO L479 AbstractCegarLoop]: Abstraction has 1778 states and 2113 transitions. [2020-07-21 13:55:07,879 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:55:07,879 INFO L276 IsEmpty]: Start isEmpty. Operand 1778 states and 2113 transitions. [2020-07-21 13:55:07,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2020-07-21 13:55:07,885 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:07,885 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:55:08,098 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:08,099 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:08,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:08,100 INFO L82 PathProgramCache]: Analyzing trace with hash 619546762, now seen corresponding path program 1 times [2020-07-21 13:55:08,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:08,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2094741605] [2020-07-21 13:55:08,101 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 13:55:08,247 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:08,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:08,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:08,252 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-07-21 13:55:08,283 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:55:08,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2094741605] [2020-07-21 13:55:08,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:55:08,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:55:08,284 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384915132] [2020-07-21 13:55:08,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:55:08,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:08,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:55:08,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:55:08,285 INFO L87 Difference]: Start difference. First operand 1778 states and 2113 transitions. Second operand 3 states. [2020-07-21 13:55:08,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:08,967 INFO L93 Difference]: Finished difference Result 3840 states and 4587 transitions. [2020-07-21 13:55:08,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:55:08,967 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 243 [2020-07-21 13:55:08,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:08,975 INFO L225 Difference]: With dead ends: 3840 [2020-07-21 13:55:08,975 INFO L226 Difference]: Without dead ends: 1633 [2020-07-21 13:55:08,980 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 241 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 13:55:08,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1633 states. [2020-07-21 13:55:09,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1633 to 1633. [2020-07-21 13:55:09,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1633 states. [2020-07-21 13:55:09,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1633 states to 1633 states and 1926 transitions. [2020-07-21 13:55:09,020 INFO L78 Accepts]: Start accepts. Automaton has 1633 states and 1926 transitions. Word has length 243 [2020-07-21 13:55:09,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:09,021 INFO L479 AbstractCegarLoop]: Abstraction has 1633 states and 1926 transitions. [2020-07-21 13:55:09,021 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:55:09,021 INFO L276 IsEmpty]: Start isEmpty. Operand 1633 states and 1926 transitions. [2020-07-21 13:55:09,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 13:55:09,027 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:09,027 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:55:09,238 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:09,239 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:09,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:09,239 INFO L82 PathProgramCache]: Analyzing trace with hash 1702451702, now seen corresponding path program 1 times [2020-07-21 13:55:09,239 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:09,239 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [333813031] [2020-07-21 13:55:09,240 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 13:55:09,361 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:09,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:09,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:09,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:09,448 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:09,449 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:55:09,607 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:55:09,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [333813031] [2020-07-21 13:55:09,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:55:09,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:55:09,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169498072] [2020-07-21 13:55:09,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:55:09,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:09,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:55:09,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:55:09,611 INFO L87 Difference]: Start difference. First operand 1633 states and 1926 transitions. Second operand 7 states. [2020-07-21 13:55:11,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:11,091 INFO L93 Difference]: Finished difference Result 4790 states and 5922 transitions. [2020-07-21 13:55:11,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 13:55:11,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 253 [2020-07-21 13:55:11,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:11,103 INFO L225 Difference]: With dead ends: 4790 [2020-07-21 13:55:11,103 INFO L226 Difference]: Without dead ends: 2114 [2020-07-21 13:55:11,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 512 GetRequests, 501 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 13:55:11,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2114 states. [2020-07-21 13:55:11,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2114 to 2068. [2020-07-21 13:55:11,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2068 states. [2020-07-21 13:55:11,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2068 states to 2068 states and 2365 transitions. [2020-07-21 13:55:11,172 INFO L78 Accepts]: Start accepts. Automaton has 2068 states and 2365 transitions. Word has length 253 [2020-07-21 13:55:11,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:11,172 INFO L479 AbstractCegarLoop]: Abstraction has 2068 states and 2365 transitions. [2020-07-21 13:55:11,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:55:11,173 INFO L276 IsEmpty]: Start isEmpty. Operand 2068 states and 2365 transitions. [2020-07-21 13:55:11,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-07-21 13:55:11,180 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:55:11,181 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 13:55:11,395 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:11,396 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:55:11,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:55:11,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1698020394, now seen corresponding path program 1 times [2020-07-21 13:55:11,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:55:11,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1468957156] [2020-07-21 13:55:11,398 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 13:55:11,523 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:55:11,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:55:11,525 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:55:11,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:55:11,599 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-21 13:55:11,599 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:55:11,599 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1468957156] [2020-07-21 13:55:11,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:55:11,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:55:11,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902184091] [2020-07-21 13:55:11,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:55:11,600 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:55:11,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:55:11,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:55:11,601 INFO L87 Difference]: Start difference. First operand 2068 states and 2365 transitions. Second operand 3 states. [2020-07-21 13:55:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:55:12,146 INFO L93 Difference]: Finished difference Result 4128 states and 4726 transitions. [2020-07-21 13:55:12,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:55:12,151 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-07-21 13:55:12,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:55:12,152 INFO L225 Difference]: With dead ends: 4128 [2020-07-21 13:55:12,152 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:55:12,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 301 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 13:55:12,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:55:12,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:55:12,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:55:12,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:55:12,160 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 303 [2020-07-21 13:55:12,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:55:12,161 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:55:12,161 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:55:12,161 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:55:12,161 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:55:12,374 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:55:12,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:55:13,280 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 53 [2020-07-21 13:55:13,486 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 30 [2020-07-21 13:55:13,686 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 30 [2020-07-21 13:55:13,692 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:55:13,692 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 13:55:13,693 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,694 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 13:55:13,695 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 13:55:13,696 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 13:55:13,697 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 13:55:13,698 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 13:55:13,699 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 13:55:13,700 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,701 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 13:55:13,702 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,703 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 13:55:13,704 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 13:55:13,705 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse11 (<= ~a10~0 |old(~a10~0)|)) (.cse9 (<= |old(~a10~0)| ~a10~0))) (let ((.cse2 (not (<= |old(~a19~0)| 8))) (.cse0 (and .cse11 .cse9 (<= ~a19~0 |old(~a19~0)|))) (.cse5 (not (<= |old(~a10~0)| 2))) (.cse1 (not (< 218 |old(~a1~0)|))) (.cse4 (< 218 ~a1~0)) (.cse3 (not (<= 4 |old(~a10~0)|))) (.cse6 (not (< |old(~a19~0)| 10))) (.cse7 (not (<= 9 |old(~a19~0)|))) (.cse8 (<= 9 ~a19~0)) (.cse10 (< ~a19~0 10))) (and (or .cse0 .cse1 .cse2) (or .cse0 .cse3 .cse2) (or .cse1 .cse4 .cse5) (or .cse6 (not (<= |old(~a10~0)| 3)) .cse7 (and .cse8 .cse9 (<= ~a10~0 3) .cse10) (not (<= 2 |old(~a10~0)|))) (or .cse0 .cse5) (or .cse1 .cse6 .cse4) (or (not (<= |old(~a19~0)| 6)) (and .cse11 (<= ~a19~0 6) .cse9)) (or .cse3 .cse6 .cse7 (and .cse8 .cse11 .cse9 .cse10))))) [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,706 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 13:55:13,707 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 13:55:13,708 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 13:55:13,709 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (< ~a19~0 10)) [2020-07-21 13:55:13,710 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:55:13,710 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) (<= ~a10~0 |old(~a10~0)|) (<= |old(~a10~0)| ~a10~0) (< ~a19~0 10))) [2020-07-21 13:55:13,710 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:55:13,711 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (< ~a19~0 10))) (or (not (< |old(~a19~0)| 10)) (and (<= 4 ~a10~0) .cse0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and (<= ~a19~0 8) (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 9 ~a19~0) .cse0))) [2020-07-21 13:55:13,711 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 13:55:13,711 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 13:55:13,711 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (< ~a19~0 10))) (or (not (< |old(~a19~0)| 10)) (and (<= 4 ~a10~0) .cse0) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and (<= ~a19~0 8) (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 9 ~a19~0) .cse0))) [2020-07-21 13:55:13,711 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 13:55:13,729 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:55:13 BoogieIcfgContainer [2020-07-21 13:55:13,729 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:55:13,731 INFO L168 Benchmark]: Toolchain (without parser) took 16785.73 ms. Allocated memory was 138.9 MB in the beginning and 477.1 MB in the end (delta: 338.2 MB). Free memory was 102.3 MB in the beginning and 407.8 MB in the end (delta: -305.5 MB). Peak memory consumption was 351.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:13,732 INFO L168 Benchmark]: CDTParser took 0.58 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 13:55:13,733 INFO L168 Benchmark]: CACSL2BoogieTranslator took 829.20 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 101.9 MB in the beginning and 170.6 MB in the end (delta: -68.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:13,734 INFO L168 Benchmark]: Boogie Preprocessor took 107.82 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 166.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:13,734 INFO L168 Benchmark]: RCFGBuilder took 1453.31 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 166.5 MB in the beginning and 182.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:13,735 INFO L168 Benchmark]: TraceAbstraction took 14389.67 ms. Allocated memory was 238.6 MB in the beginning and 477.1 MB in the end (delta: 238.6 MB). Free memory was 180.9 MB in the beginning and 407.8 MB in the end (delta: -226.8 MB). Peak memory consumption was 330.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:55:13,739 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.58 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 829.20 ms. Allocated memory was 138.9 MB in the beginning and 205.0 MB in the end (delta: 66.1 MB). Free memory was 101.9 MB in the beginning and 170.6 MB in the end (delta: -68.7 MB). Peak memory consumption was 35.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 107.82 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 166.5 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1453.31 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 166.5 MB in the beginning and 182.4 MB in the end (delta: -15.9 MB). Peak memory consumption was 82.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14389.67 ms. Allocated memory was 238.6 MB in the beginning and 477.1 MB in the end (delta: 238.6 MB). Free memory was 180.9 MB in the beginning and 407.8 MB in the end (delta: -226.8 MB). Peak memory consumption was 330.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: ((((((!(\old(a19) < 10) || (4 <= a10 && a19 < 10)) || a19 <= 6) || !(\old(a10) <= 0)) || (a19 <= 8 && 218 < a1)) || !(9 <= \old(a19))) || a10 <= 2) || (9 <= a19 && a19 < 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.9s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 8.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 919 SDtfs, 1946 SDslu, 177 SDs, 0 SdLazy, 4687 SolverSat, 1101 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2483 GetRequests, 2448 SyntacticMatches, 5 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2068occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 501 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 97 PreInvPairs, 159 NumberOfFragments, 276 HoareAnnotationTreeSize, 97 FomulaSimplifications, 3912 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2081 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1767 NumberOfCodeBlocks, 1767 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2464 ConstructedInterpolants, 0 QuantifiedInterpolants, 1295470 SizeOfPredicates, 14 NumberOfNonLiveVariables, 3182 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 1519/1531 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...