/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/Problem02_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 13:52:44,530 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 13:52:44,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 13:52:44,551 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 13:52:44,552 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 13:52:44,554 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 13:52:44,556 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 13:52:44,565 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 13:52:44,570 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 13:52:44,573 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 13:52:44,574 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 13:52:44,575 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 13:52:44,575 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 13:52:44,577 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 13:52:44,579 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 13:52:44,580 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 13:52:44,582 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 13:52:44,582 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 13:52:44,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 13:52:44,588 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 13:52:44,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 13:52:44,597 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 13:52:44,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 13:52:44,598 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 13:52:44,601 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 13:52:44,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 13:52:44,610 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 13:52:44,612 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 13:52:44,613 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 13:52:44,649 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 13:52:44,650 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 13:52:44,651 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 13:52:44,652 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 13:52:44,652 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 13:52:44,652 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 13:52:44,654 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 13:52:44,654 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 13:52:44,655 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 13:52:44,655 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 13:52:44,655 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 13:52:44,656 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 13:52:44,656 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 13:52:44,656 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 13:52:44,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 13:52:44,657 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 13:52:44,657 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 13:52:44,657 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 13:52:44,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 13:52:44,658 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 13:52:44,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 13:52:44,658 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 13:52:44,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 13:52:44,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 13:52:44,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 13:52:44,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 13:52:44,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:44,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 13:52:44,660 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 13:52:44,660 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 13:52:44,933 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 13:52:44,947 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 13:52:44,950 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 13:52:44,951 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 13:52:44,952 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 13:52:44,952 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-21 13:52:45,013 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c380135b3/20c0f9ddce994b72a182291c89353264/FLAG7465cd76b [2020-07-21 13:52:45,598 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 13:52:45,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label55.c [2020-07-21 13:52:45,616 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c380135b3/20c0f9ddce994b72a182291c89353264/FLAG7465cd76b [2020-07-21 13:52:45,849 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c380135b3/20c0f9ddce994b72a182291c89353264 [2020-07-21 13:52:45,859 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 13:52:45,862 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 13:52:45,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:45,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 13:52:45,868 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 13:52:45,869 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:45" (1/1) ... [2020-07-21 13:52:45,872 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@316a3cec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:45, skipping insertion in model container [2020-07-21 13:52:45,872 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:52:45" (1/1) ... [2020-07-21 13:52:45,880 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 13:52:45,943 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 13:52:46,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:46,464 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 13:52:46,594 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 13:52:46,622 INFO L208 MainTranslator]: Completed translation [2020-07-21 13:52:46,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46 WrapperNode [2020-07-21 13:52:46,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 13:52:46,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 13:52:46,624 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 13:52:46,624 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 13:52:46,640 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,640 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,657 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,697 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (1/1) ... [2020-07-21 13:52:46,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 13:52:46,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 13:52:46,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 13:52:46,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 13:52:46,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (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 13:52:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 13:52:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 13:52:46,789 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 13:52:46,790 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 13:52:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 13:52:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 13:52:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 13:52:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 13:52:46,790 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 13:52:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 13:52:46,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 13:52:47,938 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 13:52:47,938 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 13:52:47,945 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:47 BoogieIcfgContainer [2020-07-21 13:52:47,945 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 13:52:47,946 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 13:52:47,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 13:52:47,950 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 13:52:47,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:52:45" (1/3) ... [2020-07-21 13:52:47,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e60072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:47, skipping insertion in model container [2020-07-21 13:52:47,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:52:46" (2/3) ... [2020-07-21 13:52:47,952 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e60072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:52:47, skipping insertion in model container [2020-07-21 13:52:47,952 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:52:47" (3/3) ... [2020-07-21 13:52:47,954 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label55.c [2020-07-21 13:52:47,965 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 13:52:47,973 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 13:52:47,987 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 13:52:48,014 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 13:52:48,015 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 13:52:48,015 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 13:52:48,015 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 13:52:48,016 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 13:52:48,016 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 13:52:48,016 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 13:52:48,016 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 13:52:48,040 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 13:52:48,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 13:52:48,053 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:48,054 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:48,055 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:48,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:48,062 INFO L82 PathProgramCache]: Analyzing trace with hash 1666327721, now seen corresponding path program 1 times [2020-07-21 13:52:48,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:48,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332738380] [2020-07-21 13:52:48,073 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 13:52:48,279 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:48,280 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:48,284 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:48,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:48,395 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 13:52:48,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:48,397 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1332738380] [2020-07-21 13:52:48,398 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:48,398 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:48,399 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298284578] [2020-07-21 13:52:48,404 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:48,405 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:48,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:48,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:48,423 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 13:52:49,446 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:49,446 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-21 13:52:49,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:49,452 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 111 [2020-07-21 13:52:49,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:49,479 INFO L225 Difference]: With dead ends: 619 [2020-07-21 13:52:49,479 INFO L226 Difference]: Without dead ends: 321 [2020-07-21 13:52:49,492 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 109 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 13:52:49,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-21 13:52:49,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-21 13:52:49,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-21 13:52:49,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-21 13:52:49,607 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 111 [2020-07-21 13:52:49,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:49,610 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-21 13:52:49,610 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:49,610 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-21 13:52:49,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-07-21 13:52:49,623 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:49,624 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:49,839 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:49,839 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:49,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:49,840 INFO L82 PathProgramCache]: Analyzing trace with hash 1096762264, now seen corresponding path program 1 times [2020-07-21 13:52:49,840 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:49,840 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [765084357] [2020-07-21 13:52:49,841 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 13:52:49,965 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:49,965 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:49,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 13:52:49,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:50,049 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:50,050 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:50,129 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-21 13:52:50,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [765084357] [2020-07-21 13:52:50,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 13:52:50,130 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 13:52:50,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196197125] [2020-07-21 13:52:50,132 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 13:52:50,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:50,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 13:52:50,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:50,133 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-21 13:52:50,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:50,824 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-21 13:52:50,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 13:52:50,825 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 120 [2020-07-21 13:52:50,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:50,831 INFO L225 Difference]: With dead ends: 941 [2020-07-21 13:52:50,831 INFO L226 Difference]: Without dead ends: 628 [2020-07-21 13:52:50,833 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 232 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:50,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-21 13:52:50,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-21 13:52:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-21 13:52:50,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-21 13:52:50,866 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 120 [2020-07-21 13:52:50,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:50,867 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-21 13:52:50,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 13:52:50,868 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-21 13:52:50,873 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-07-21 13:52:50,873 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:50,874 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:51,074 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:51,075 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:51,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:51,076 INFO L82 PathProgramCache]: Analyzing trace with hash 1858974237, now seen corresponding path program 1 times [2020-07-21 13:52:51,077 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:51,077 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14273262] [2020-07-21 13:52:51,078 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 13:52:51,174 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:51,174 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:51,177 INFO L263 TraceCheckSpWp]: Trace formula consists of 377 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:51,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:51,223 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:51,223 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:51,224 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14273262] [2020-07-21 13:52:51,224 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:51,224 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:51,225 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185304263] [2020-07-21 13:52:51,225 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:51,225 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:51,226 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:51,226 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:51,226 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-21 13:52:51,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:51,917 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-21 13:52:51,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:51,918 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-07-21 13:52:51,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:51,924 INFO L225 Difference]: With dead ends: 1543 [2020-07-21 13:52:51,924 INFO L226 Difference]: Without dead ends: 921 [2020-07-21 13:52:51,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 126 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:51,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-21 13:52:51,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-21 13:52:51,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-21 13:52:51,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-21 13:52:51,964 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 128 [2020-07-21 13:52:51,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:51,965 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-21 13:52:51,965 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:51,965 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-21 13:52:51,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 13:52:51,969 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:51,969 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:52,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:52,172 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:52,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:52,173 INFO L82 PathProgramCache]: Analyzing trace with hash 459938663, now seen corresponding path program 1 times [2020-07-21 13:52:52,174 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:52,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1125890661] [2020-07-21 13:52:52,175 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 13:52:52,270 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:52,270 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:52,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 13:52:52,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:52,330 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 17 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 13:52:52,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:52,408 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 13:52:52,409 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1125890661] [2020-07-21 13:52:52,409 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:52,409 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 13:52:52,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495094861] [2020-07-21 13:52:52,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:52,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:52,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:52,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:52,411 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 5 states. [2020-07-21 13:52:53,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:53,197 INFO L93 Difference]: Finished difference Result 2773 states and 3861 transitions. [2020-07-21 13:52:53,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:53,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 134 [2020-07-21 13:52:53,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:53,222 INFO L225 Difference]: With dead ends: 2773 [2020-07-21 13:52:53,222 INFO L226 Difference]: Without dead ends: 1860 [2020-07-21 13:52:53,225 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 262 SyntacticMatches, 3 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:53,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1860 states. [2020-07-21 13:52:53,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1860 to 1828. [2020-07-21 13:52:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1828 states. [2020-07-21 13:52:53,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1828 states to 1828 states and 2448 transitions. [2020-07-21 13:52:53,332 INFO L78 Accepts]: Start accepts. Automaton has 1828 states and 2448 transitions. Word has length 134 [2020-07-21 13:52:53,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:53,333 INFO L479 AbstractCegarLoop]: Abstraction has 1828 states and 2448 transitions. [2020-07-21 13:52:53,333 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:53,333 INFO L276 IsEmpty]: Start isEmpty. Operand 1828 states and 2448 transitions. [2020-07-21 13:52:53,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 13:52:53,352 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:53,354 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:53,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:53,568 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:53,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:53,569 INFO L82 PathProgramCache]: Analyzing trace with hash 349804708, now seen corresponding path program 2 times [2020-07-21 13:52:53,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:53,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1419030166] [2020-07-21 13:52:53,570 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 13:52:53,693 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:53,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:53,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 430 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:53,700 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:53,745 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:53,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:53,826 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 35 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 13:52:53,826 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1419030166] [2020-07-21 13:52:53,827 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:53,827 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:52:53,828 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826414953] [2020-07-21 13:52:53,829 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:52:53,829 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:53,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:52:53,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:53,831 INFO L87 Difference]: Start difference. First operand 1828 states and 2448 transitions. Second operand 7 states. [2020-07-21 13:52:55,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:55,404 INFO L93 Difference]: Finished difference Result 4385 states and 6475 transitions. [2020-07-21 13:52:55,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 13:52:55,405 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-21 13:52:55,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:55,427 INFO L225 Difference]: With dead ends: 4385 [2020-07-21 13:52:55,427 INFO L226 Difference]: Without dead ends: 2563 [2020-07-21 13:52:55,438 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 281 GetRequests, 271 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 13:52:55,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2563 states. [2020-07-21 13:52:55,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2563 to 2468. [2020-07-21 13:52:55,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2468 states. [2020-07-21 13:52:55,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 3122 transitions. [2020-07-21 13:52:55,544 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 3122 transitions. Word has length 137 [2020-07-21 13:52:55,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:55,544 INFO L479 AbstractCegarLoop]: Abstraction has 2468 states and 3122 transitions. [2020-07-21 13:52:55,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:52:55,549 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 3122 transitions. [2020-07-21 13:52:55,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-21 13:52:55,559 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:55,559 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:55,810 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:55,810 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:55,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:55,811 INFO L82 PathProgramCache]: Analyzing trace with hash 1845831279, now seen corresponding path program 1 times [2020-07-21 13:52:55,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:55,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823274517] [2020-07-21 13:52:55,812 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 13:52:55,922 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:55,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:55,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:55,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:55,954 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-21 13:52:55,954 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:55,954 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823274517] [2020-07-21 13:52:55,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:55,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 13:52:55,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890436245] [2020-07-21 13:52:55,955 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 13:52:55,956 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:55,956 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 13:52:55,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 13:52:55,965 INFO L87 Difference]: Start difference. First operand 2468 states and 3122 transitions. Second operand 3 states. [2020-07-21 13:52:56,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:56,568 INFO L93 Difference]: Finished difference Result 5522 states and 7106 transitions. [2020-07-21 13:52:56,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 13:52:56,569 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 138 [2020-07-21 13:52:56,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:56,586 INFO L225 Difference]: With dead ends: 5522 [2020-07-21 13:52:56,587 INFO L226 Difference]: Without dead ends: 3060 [2020-07-21 13:52:56,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 136 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 13:52:56,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3060 states. [2020-07-21 13:52:56,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3060 to 3054. [2020-07-21 13:52:56,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3054 states. [2020-07-21 13:52:56,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3054 states to 3054 states and 3801 transitions. [2020-07-21 13:52:56,696 INFO L78 Accepts]: Start accepts. Automaton has 3054 states and 3801 transitions. Word has length 138 [2020-07-21 13:52:56,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:56,696 INFO L479 AbstractCegarLoop]: Abstraction has 3054 states and 3801 transitions. [2020-07-21 13:52:56,696 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 13:52:56,696 INFO L276 IsEmpty]: Start isEmpty. Operand 3054 states and 3801 transitions. [2020-07-21 13:52:56,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-07-21 13:52:56,705 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:56,705 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:52:56,918 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:56,919 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:56,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:56,919 INFO L82 PathProgramCache]: Analyzing trace with hash -161267733, now seen corresponding path program 1 times [2020-07-21 13:52:56,920 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:56,920 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [298509305] [2020-07-21 13:52:56,920 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 13:52:57,012 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:57,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:57,014 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 13:52:57,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 13:52:57,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 13:52:57,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [298509305] [2020-07-21 13:52:57,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 13:52:57,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 13:52:57,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946475179] [2020-07-21 13:52:57,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 13:52:57,091 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:57,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 13:52:57,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 13:52:57,092 INFO L87 Difference]: Start difference. First operand 3054 states and 3801 transitions. Second operand 5 states. [2020-07-21 13:52:57,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:57,918 INFO L93 Difference]: Finished difference Result 8247 states and 10820 transitions. [2020-07-21 13:52:57,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:52:57,919 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-07-21 13:52:57,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:57,949 INFO L225 Difference]: With dead ends: 8247 [2020-07-21 13:52:57,949 INFO L226 Difference]: Without dead ends: 5199 [2020-07-21 13:52:57,961 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 13:52:57,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5199 states. [2020-07-21 13:52:58,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5199 to 5127. [2020-07-21 13:52:58,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5127 states. [2020-07-21 13:52:58,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5127 states to 5127 states and 6247 transitions. [2020-07-21 13:52:58,115 INFO L78 Accepts]: Start accepts. Automaton has 5127 states and 6247 transitions. Word has length 142 [2020-07-21 13:52:58,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:58,116 INFO L479 AbstractCegarLoop]: Abstraction has 5127 states and 6247 transitions. [2020-07-21 13:52:58,116 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 13:52:58,116 INFO L276 IsEmpty]: Start isEmpty. Operand 5127 states and 6247 transitions. [2020-07-21 13:52:58,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2020-07-21 13:52:58,132 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:58,133 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:58,347 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:58,347 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:58,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:58,348 INFO L82 PathProgramCache]: Analyzing trace with hash 455788955, now seen corresponding path program 1 times [2020-07-21 13:52:58,348 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:58,348 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [288873485] [2020-07-21 13:52:58,349 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 13:52:58,520 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:58,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:58,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 555 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:58,537 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:58,589 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-07-21 13:52:58,589 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:58,695 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 114 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-07-21 13:52:58,695 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [288873485] [2020-07-21 13:52:58,696 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:58,696 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:58,696 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348105607] [2020-07-21 13:52:58,697 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:58,697 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:58,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:58,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:58,698 INFO L87 Difference]: Start difference. First operand 5127 states and 6247 transitions. Second operand 6 states. [2020-07-21 13:52:59,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:52:59,207 INFO L93 Difference]: Finished difference Result 9839 states and 12352 transitions. [2020-07-21 13:52:59,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 13:52:59,209 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 211 [2020-07-21 13:52:59,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:52:59,237 INFO L225 Difference]: With dead ends: 9839 [2020-07-21 13:52:59,240 INFO L226 Difference]: Without dead ends: 4718 [2020-07-21 13:52:59,255 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 416 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:52:59,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4718 states. [2020-07-21 13:52:59,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4718 to 4652. [2020-07-21 13:52:59,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4652 states. [2020-07-21 13:52:59,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4652 states to 4652 states and 5508 transitions. [2020-07-21 13:52:59,392 INFO L78 Accepts]: Start accepts. Automaton has 4652 states and 5508 transitions. Word has length 211 [2020-07-21 13:52:59,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:52:59,393 INFO L479 AbstractCegarLoop]: Abstraction has 4652 states and 5508 transitions. [2020-07-21 13:52:59,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:52:59,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4652 states and 5508 transitions. [2020-07-21 13:52:59,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-07-21 13:52:59,410 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:52:59,410 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:52:59,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:52:59,626 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:52:59,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:52:59,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1716455552, now seen corresponding path program 1 times [2020-07-21 13:52:59,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:52:59,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1897143404] [2020-07-21 13:52:59,627 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 13:52:59,752 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:52:59,752 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:52:59,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 585 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:52:59,759 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:52:59,814 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-07-21 13:52:59,814 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:52:59,910 INFO L134 CoverageAnalysis]: Checked inductivity of 237 backedges. 133 proven. 54 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2020-07-21 13:52:59,911 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1897143404] [2020-07-21 13:52:59,911 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:52:59,911 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 13:52:59,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455311054] [2020-07-21 13:52:59,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 13:52:59,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:52:59,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 13:52:59,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 13:52:59,913 INFO L87 Difference]: Start difference. First operand 4652 states and 5508 transitions. Second operand 6 states. [2020-07-21 13:53:00,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:00,709 INFO L93 Difference]: Finished difference Result 8881 states and 10565 transitions. [2020-07-21 13:53:00,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:53:00,713 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 241 [2020-07-21 13:53:00,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:00,732 INFO L225 Difference]: With dead ends: 8881 [2020-07-21 13:53:00,732 INFO L226 Difference]: Without dead ends: 4379 [2020-07-21 13:53:00,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 487 GetRequests, 478 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:00,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4379 states. [2020-07-21 13:53:00,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4379 to 4375. [2020-07-21 13:53:00,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4375 states. [2020-07-21 13:53:00,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4375 states to 4375 states and 5103 transitions. [2020-07-21 13:53:00,844 INFO L78 Accepts]: Start accepts. Automaton has 4375 states and 5103 transitions. Word has length 241 [2020-07-21 13:53:00,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:00,845 INFO L479 AbstractCegarLoop]: Abstraction has 4375 states and 5103 transitions. [2020-07-21 13:53:00,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 13:53:00,845 INFO L276 IsEmpty]: Start isEmpty. Operand 4375 states and 5103 transitions. [2020-07-21 13:53:00,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-07-21 13:53:00,860 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:00,861 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 13:53:01,076 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:01,077 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:01,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:01,078 INFO L82 PathProgramCache]: Analyzing trace with hash -1657714952, now seen corresponding path program 1 times [2020-07-21 13:53:01,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:01,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [660099166] [2020-07-21 13:53:01,079 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:01,232 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:01,232 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:01,234 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:01,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:01,303 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 207 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 13:53:01,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 253 backedges. 172 proven. 36 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2020-07-21 13:53:01,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [660099166] [2020-07-21 13:53:01,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:01,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:01,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802485669] [2020-07-21 13:53:01,398 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:01,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:01,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:01,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:01,399 INFO L87 Difference]: Start difference. First operand 4375 states and 5103 transitions. Second operand 7 states. [2020-07-21 13:53:02,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:02,720 INFO L93 Difference]: Finished difference Result 10612 states and 12330 transitions. [2020-07-21 13:53:02,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 13:53:02,720 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 245 [2020-07-21 13:53:02,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:02,754 INFO L225 Difference]: With dead ends: 10612 [2020-07-21 13:53:02,754 INFO L226 Difference]: Without dead ends: 6387 [2020-07-21 13:53:02,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 493 GetRequests, 485 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:02,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6387 states. [2020-07-21 13:53:02,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6387 to 6097. [2020-07-21 13:53:02,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6097 states. [2020-07-21 13:53:02,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6097 states to 6097 states and 6840 transitions. [2020-07-21 13:53:02,916 INFO L78 Accepts]: Start accepts. Automaton has 6097 states and 6840 transitions. Word has length 245 [2020-07-21 13:53:02,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:02,916 INFO L479 AbstractCegarLoop]: Abstraction has 6097 states and 6840 transitions. [2020-07-21 13:53:02,917 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:02,917 INFO L276 IsEmpty]: Start isEmpty. Operand 6097 states and 6840 transitions. [2020-07-21 13:53:02,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-07-21 13:53:02,935 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:02,937 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:03,151 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:03,152 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:03,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:03,153 INFO L82 PathProgramCache]: Analyzing trace with hash -186224720, now seen corresponding path program 1 times [2020-07-21 13:53:03,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:03,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [451464730] [2020-07-21 13:53:03,153 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:03,317 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:03,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:03,319 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 13:53:03,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:03,457 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 228 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-07-21 13:53:03,457 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:03,563 INFO L134 CoverageAnalysis]: Checked inductivity of 274 backedges. 186 proven. 36 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-07-21 13:53:03,564 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [451464730] [2020-07-21 13:53:03,564 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:03,564 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:03,564 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910619816] [2020-07-21 13:53:03,565 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:03,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:03,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:03,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:03,565 INFO L87 Difference]: Start difference. First operand 6097 states and 6840 transitions. Second operand 7 states. [2020-07-21 13:53:04,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:04,821 INFO L93 Difference]: Finished difference Result 11181 states and 12535 transitions. [2020-07-21 13:53:04,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 13:53:04,822 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-07-21 13:53:04,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:04,843 INFO L225 Difference]: With dead ends: 11181 [2020-07-21 13:53:04,843 INFO L226 Difference]: Without dead ends: 5503 [2020-07-21 13:53:04,860 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 507 GetRequests, 499 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:04,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-07-21 13:53:04,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5497. [2020-07-21 13:53:04,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5497 states. [2020-07-21 13:53:04,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5497 states to 5497 states and 6061 transitions. [2020-07-21 13:53:04,967 INFO L78 Accepts]: Start accepts. Automaton has 5497 states and 6061 transitions. Word has length 252 [2020-07-21 13:53:04,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:04,967 INFO L479 AbstractCegarLoop]: Abstraction has 5497 states and 6061 transitions. [2020-07-21 13:53:04,967 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:04,967 INFO L276 IsEmpty]: Start isEmpty. Operand 5497 states and 6061 transitions. [2020-07-21 13:53:04,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2020-07-21 13:53:04,985 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 13:53:04,985 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 13:53:05,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:05,200 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 13:53:05,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 13:53:05,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1332464188, now seen corresponding path program 1 times [2020-07-21 13:53:05,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 13:53:05,201 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520290315] [2020-07-21 13:53:05,201 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:05,466 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 13:53:05,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 13:53:05,468 INFO L263 TraceCheckSpWp]: Trace formula consists of 668 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 13:53:05,475 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 13:53:05,537 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 166 proven. 2 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2020-07-21 13:53:05,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 13:53:05,623 INFO L134 CoverageAnalysis]: Checked inductivity of 387 backedges. 174 proven. 80 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2020-07-21 13:53:05,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1520290315] [2020-07-21 13:53:05,623 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 13:53:05,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 13:53:05,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588813088] [2020-07-21 13:53:05,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 13:53:05,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 13:53:05,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 13:53:05,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 13:53:05,625 INFO L87 Difference]: Start difference. First operand 5497 states and 6061 transitions. Second operand 7 states. [2020-07-21 13:53:06,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 13:53:06,732 INFO L93 Difference]: Finished difference Result 10238 states and 11289 transitions. [2020-07-21 13:53:06,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 13:53:06,734 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2020-07-21 13:53:06,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 13:53:06,734 INFO L225 Difference]: With dead ends: 10238 [2020-07-21 13:53:06,734 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 13:53:06,756 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 550 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 13:53:06,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 13:53:06,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 13:53:06,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 13:53:06,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 13:53:06,758 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 277 [2020-07-21 13:53:06,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 13:53:06,759 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 13:53:06,759 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 13:53:06,759 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 13:53:06,759 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 13:53:06,972 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 13:53:06,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 13:53:07,683 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-21 13:53:07,856 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 225 DAG size of output: 130 [2020-07-21 13:53:09,568 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 157 DAG size of output: 82 [2020-07-21 13:53:10,373 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-21 13:53:11,094 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 61 [2020-07-21 13:53:11,098 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:53:11,099 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (or (<= ~a11~0 0) (< 0 |old(~a11~0)|)) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) [2020-07-21 13:53:11,099 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:53:11,099 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,099 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,099 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 13:53:11,100 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,101 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:53:11,102 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,103 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 487) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 13:53:11,104 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 13:53:11,105 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 13:53:11,106 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 13:53:11,107 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 13:53:11,108 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 13:53:11,109 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,110 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 13:53:11,111 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 13:53:11,112 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,113 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 13:53:11,114 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,115 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 13:53:11,116 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 13:53:11,117 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 13:53:11,118 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,118 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,118 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,118 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse25 (<= ~a11~0 0))) (let ((.cse18 (= 1 ~a25~0)) (.cse21 (<= ~a17~0 |old(~a17~0)|)) (.cse22 (or .cse25 (< 0 |old(~a11~0)|))) (.cse23 (<= ~a25~0 |old(~a25~0)|)) (.cse26 (<= ~a28~0 |old(~a28~0)|)) (.cse13 (<= ~a17~0 8)) (.cse14 (<= 8 ~a17~0)) (.cse16 (= ~a19~0 |old(~a19~0)|)) (.cse17 (<= |old(~a28~0)| ~a28~0)) (.cse27 (= ~a25~0 |old(~a25~0)|))) (let ((.cse9 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse27)) (.cse1 (and .cse21 .cse26 .cse22 .cse23 .cse16 .cse17)) (.cse19 (and .cse25 .cse26 .cse13 .cse14 .cse16 .cse17 .cse18)) (.cse5 (not (<= |old(~a17~0)| 7))) (.cse24 (<= ~a28~0 9)) (.cse12 (not (= 1 |old(~a25~0)|))) (.cse11 (not (<= |old(~a28~0)| 7))) (.cse0 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a28~0)| 10))) (.cse3 (not (<= 9 |old(~a28~0)|))) (.cse15 (<= ~a28~0 10)) (.cse6 (not (<= |old(~a28~0)| 9))) (.cse7 (not (<= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a25~0)| 0))) (.cse8 (not (<= |old(~a19~0)| 0))) (.cse10 (not (<= |old(~a17~0)| 8))) (.cse20 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5) (or .cse6 .cse7 .cse4 .cse8 .cse9 .cse10) (or .cse11 .cse7 .cse8 .cse9 .cse10) (or .cse0 .cse2 .cse3 .cse7 .cse12 .cse10 (and .cse13 .cse14 .cse15 .cse16 .cse17 .cse18)) (or .cse0 .cse1 .cse11 .cse5) (or .cse0 .cse7 .cse12 .cse19 .cse10 .cse20) (or .cse2 .cse3 .cse4 .cse8 .cse5 (and .cse21 .cse22 .cse15 .cse23 .cse16 .cse17)) (or .cse2 .cse3 .cse7 .cse12 .cse8 .cse19 .cse10 .cse20) (or .cse0 .cse3 .cse6 .cse4 .cse24 .cse10) (or .cse0 .cse11 .cse4 (and .cse25 .cse26 .cse13 .cse16 .cse17 .cse27) .cse10 .cse20) (or .cse0 .cse11 .cse7 .cse12 (and .cse26 .cse13 .cse14 .cse16 .cse17 .cse18) .cse10) (or .cse3 .cse6 .cse8 .cse5 (and .cse21 .cse22 .cse24 .cse23 .cse16 .cse17)) (or .cse0 .cse3 .cse6 .cse24 .cse7 .cse12 .cse10) (or .cse25 .cse11 .cse7 .cse8 .cse10 .cse20) (or .cse0 .cse2 .cse3 .cse7 .cse4 (and .cse22 .cse13 .cse14 .cse15 .cse16 .cse17 .cse27) .cse10) (or .cse25 .cse6 .cse7 .cse4 .cse8 .cse10 .cse20))))) [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 13:53:11,119 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 13:53:11,120 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 13:53:11,121 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 13:53:11,122 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,123 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 13:53:11,124 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:53:11,125 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 13:53:11,126 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 13:53:11,126 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 13:53:11,126 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 13:53:11,126 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a17~0 8) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 13:53:11,126 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 13:53:11,126 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 13:53:11,126 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (and (<= ~a17~0 |old(~a17~0)|) (<= ~a11~0 0) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|) (<= |old(~a28~0)| ~a28~0) (= ~a25~0 |old(~a25~0)|)) (not (<= |old(~a17~0)| 8)) (not (<= |old(~a11~0)| 0))) [2020-07-21 13:53:11,127 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-21 13:53:11,127 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:53:11,127 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 13:53:11,127 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse11 (<= 1 ~a19~0)) (.cse12 (<= ~a19~0 |old(~a19~0)|)) (.cse15 (<= ~a28~0 9)) (.cse1 (<= ~a17~0 |old(~a17~0)|)) (.cse2 (<= ~a11~0 0)) (.cse9 (<= 8 ~a17~0)) (.cse8 (<= ~a19~0 0)) (.cse13 (= 1 ~a25~0)) (.cse5 (<= ~a17~0 7)) (.cse10 (<= ~a28~0 7)) (.cse0 (= 1 ~a19~0)) (.cse14 (<= ~a17~0 8)) (.cse3 (<= ~a28~0 10)) (.cse4 (<= ~a25~0 0)) (.cse6 (< 7 |old(~a17~0)|)) (.cse7 (<= 9 ~a28~0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 .cse2 (<= ~a28~0 |old(~a28~0)|) (= ~a25~0 |old(~a25~0)|)) (and .cse3 .cse4 .cse5 .cse6 .cse7 .cse8) (and .cse1 .cse9 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse1 .cse2 .cse9 .cse11 .cse12 .cse13) (and .cse0 .cse1 .cse14 .cse9 .cse10 .cse13) (and .cse1 .cse9 .cse15 .cse4 .cse8) (and .cse1 .cse9 .cse3 .cse11 .cse12 .cse7 .cse13) (and .cse15 .cse5 .cse6 .cse8 .cse7) (not (<= |old(~a11~0)| 0)) (and .cse1 .cse2 .cse9 .cse3 .cse7 .cse8 .cse13) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse14 .cse5 .cse6 .cse10) (and .cse0 .cse14 .cse3 .cse4 .cse6 .cse7) (not (<= |old(~a17~0)| 8)))) [2020-07-21 13:53:11,127 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 13:53:11,128 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 13:53:11,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:53:11 BoogieIcfgContainer [2020-07-21 13:53:11,153 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 13:53:11,154 INFO L168 Benchmark]: Toolchain (without parser) took 25293.47 ms. Allocated memory was 145.8 MB in the beginning and 623.4 MB in the end (delta: 477.6 MB). Free memory was 102.1 MB in the beginning and 353.0 MB in the end (delta: -250.9 MB). Peak memory consumption was 505.8 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:11,155 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-21 13:53:11,156 INFO L168 Benchmark]: CACSL2BoogieTranslator took 759.18 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 101.7 MB in the beginning and 172.4 MB in the end (delta: -70.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:11,156 INFO L168 Benchmark]: Boogie Preprocessor took 103.04 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:11,157 INFO L168 Benchmark]: RCFGBuilder took 1218.21 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 181.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:11,158 INFO L168 Benchmark]: TraceAbstraction took 23206.41 ms. Allocated memory was 239.1 MB in the beginning and 623.4 MB in the end (delta: 384.3 MB). Free memory was 181.7 MB in the beginning and 353.0 MB in the end (delta: -171.3 MB). Peak memory consumption was 492.1 MB. Max. memory is 7.1 GB. [2020-07-21 13:53:11,161 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.9 MB in the beginning and 121.7 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 759.18 ms. Allocated memory was 145.8 MB in the beginning and 205.5 MB in the end (delta: 59.8 MB). Free memory was 101.7 MB in the beginning and 172.4 MB in the end (delta: -70.7 MB). Peak memory consumption was 29.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.04 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.4 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1218.21 ms. Allocated memory was 205.5 MB in the beginning and 239.1 MB in the end (delta: 33.6 MB). Free memory was 166.7 MB in the beginning and 181.7 MB in the end (delta: -15.0 MB). Peak memory consumption was 81.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23206.41 ms. Allocated memory was 239.1 MB in the beginning and 623.4 MB in the end (delta: 384.3 MB). Free memory was 181.7 MB in the beginning and 353.0 MB in the end (delta: -171.3 MB). Peak memory consumption was 492.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 487]: 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: 606]: Loop Invariant Derived loop invariant: ((((((((((((((!(1 == \old(a19)) || ((((1 == a19 && a17 <= \old(a17)) && a11 <= 0) && a28 <= \old(a28)) && a25 == \old(a25))) || (((((a28 <= 10 && a25 <= 0) && a17 <= 7) && 7 < \old(a17)) && 9 <= a28) && a19 <= 0)) || (((a17 <= \old(a17) && 8 <= a17) && a19 <= 0) && a28 <= 7)) || !(\old(a28) <= 7)) || (((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && 1 <= a19) && a19 <= \old(a19)) && 1 == a25)) || (((((1 == a19 && a17 <= \old(a17)) && a17 <= 8) && 8 <= a17) && a28 <= 7) && 1 == a25)) || ((((a17 <= \old(a17) && 8 <= a17) && a28 <= 9) && a25 <= 0) && a19 <= 0)) || ((((((a17 <= \old(a17) && 8 <= a17) && a28 <= 10) && 1 <= a19) && a19 <= \old(a19)) && 9 <= a28) && 1 == a25)) || ((((a28 <= 9 && a17 <= 7) && 7 < \old(a17)) && a19 <= 0) && 9 <= a28)) || !(\old(a11) <= 0)) || ((((((a17 <= \old(a17) && a11 <= 0) && 8 <= a17) && a28 <= 10) && 9 <= a28) && a19 <= 0) && 1 == a25)) || !(\old(a25) <= 0)) || ((((1 == a19 && a17 <= 8) && a17 <= 7) && 7 < \old(a17)) && a28 <= 7)) || (((((1 == a19 && a17 <= 8) && a28 <= 10) && a25 <= 0) && 7 < \old(a17)) && 9 <= a28)) || !(\old(a17) <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.9s, OverallIterations: 12, TraceHistogramMax: 6, AutomataDifference: 11.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 4.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 977 SDtfs, 5524 SDslu, 662 SDs, 0 SdLazy, 8262 SolverSat, 1178 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3774 GetRequests, 3702 SyntacticMatches, 14 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=6097occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 12 MinimizatonAttempts, 575 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 266 PreInvPairs, 342 NumberOfFragments, 1130 HoareAnnotationTreeSize, 266 FomulaSimplifications, 8585 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 4842 FormulaSimplificationTreeSizeReductionInter, 3.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 2136 NumberOfCodeBlocks, 2136 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 3733 ConstructedInterpolants, 0 QuantifiedInterpolants, 1402655 SizeOfPredicates, 15 NumberOfNonLiveVariables, 5517 ConjunctsInSsa, 66 ConjunctsInUnsatCore, 20 InterpolantComputations, 5 PerfectInterpolantSequences, 2597/2863 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...