/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 NOT_INCREMENTALLY -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 11:25:37,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 11:25:37,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 11:25:37,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 11:25:37,758 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 11:25:37,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 11:25:37,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 11:25:37,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 11:25:37,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 11:25:37,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 11:25:37,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 11:25:37,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 11:25:37,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 11:25:37,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 11:25:37,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 11:25:37,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 11:25:37,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 11:25:37,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 11:25:37,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 11:25:37,777 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 11:25:37,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 11:25:37,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 11:25:37,781 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 11:25:37,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 11:25:37,784 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 11:25:37,791 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 11:25:37,792 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 11:25:37,793 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 11:25:37,793 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 11:25:37,808 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 11:25:37,808 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 11:25:37,809 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 11:25:37,810 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 11:25:37,810 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 11:25:37,810 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 11:25:37,810 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 11:25:37,810 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 11:25:37,811 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 11:25:37,811 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 11:25:37,811 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 11:25:37,811 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 11:25:37,811 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 11:25:37,811 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 11:25:37,812 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 11:25:37,812 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 11:25:37,812 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 11:25:37,812 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 11:25:37,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 11:25:37,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 11:25:37,813 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 11:25:37,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 11:25:37,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 11:25:37,814 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 11:25:37,814 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 11:25:37,814 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 11:25:37,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:37,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 11:25:37,815 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 11:25:37,815 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 -> NOT_INCREMENTALLY [2020-07-21 11:25:38,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 11:25:38,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 11:25:38,120 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 11:25:38,122 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 11:25:38,124 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 11:25:38,125 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-07-21 11:25:38,207 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff72e7928/99aa7475d7d245f7ab4916f076b044d6/FLAG79d96f0b8 [2020-07-21 11:25:38,705 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 11:25:38,705 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-07-21 11:25:38,726 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff72e7928/99aa7475d7d245f7ab4916f076b044d6/FLAG79d96f0b8 [2020-07-21 11:25:38,961 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff72e7928/99aa7475d7d245f7ab4916f076b044d6 [2020-07-21 11:25:38,970 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 11:25:38,973 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 11:25:38,974 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:38,974 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 11:25:38,978 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 11:25:38,979 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:38" (1/1) ... [2020-07-21 11:25:38,981 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cca1c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:38, skipping insertion in model container [2020-07-21 11:25:38,982 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 11:25:38" (1/1) ... [2020-07-21 11:25:38,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 11:25:39,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 11:25:39,416 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:39,427 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 11:25:39,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 11:25:39,750 INFO L208 MainTranslator]: Completed translation [2020-07-21 11:25:39,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39 WrapperNode [2020-07-21 11:25:39,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 11:25:39,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 11:25:39,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 11:25:39,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 11:25:39,768 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,768 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,798 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,799 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,894 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (1/1) ... [2020-07-21 11:25:39,903 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 11:25:39,903 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 11:25:39,903 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 11:25:39,904 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 11:25:39,905 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (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 11:25:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 11:25:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 11:25:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 11:25:39,981 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 11:25:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 11:25:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 11:25:39,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 11:25:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 11:25:39,983 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 11:25:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 11:25:39,984 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 11:25:41,227 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 11:25:41,228 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 11:25:41,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:25:41 BoogieIcfgContainer [2020-07-21 11:25:41,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 11:25:41,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 11:25:41,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 11:25:41,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 11:25:41,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 11:25:38" (1/3) ... [2020-07-21 11:25:41,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccb77ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:25:41, skipping insertion in model container [2020-07-21 11:25:41,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 11:25:39" (2/3) ... [2020-07-21 11:25:41,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ccb77ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 11:25:41, skipping insertion in model container [2020-07-21 11:25:41,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 11:25:41" (3/3) ... [2020-07-21 11:25:41,253 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-07-21 11:25:41,265 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 11:25:41,277 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 11:25:41,293 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 11:25:41,329 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 11:25:41,329 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 11:25:41,329 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 11:25:41,329 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 11:25:41,330 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 11:25:41,330 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 11:25:41,330 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 11:25:41,330 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 11:25:41,359 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 11:25:41,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-07-21 11:25:41,376 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:41,377 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] [2020-07-21 11:25:41,378 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:41,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:41,385 INFO L82 PathProgramCache]: Analyzing trace with hash -1692915649, now seen corresponding path program 1 times [2020-07-21 11:25:41,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:41,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2030986559] [2020-07-21 11:25:41,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:41,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:41,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 271 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:41,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:41,715 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 11:25:41,716 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:41,717 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2030986559] [2020-07-21 11:25:41,718 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:41,719 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:41,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1865234648] [2020-07-21 11:25:41,724 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:41,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:41,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:41,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:41,742 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-21 11:25:42,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:42,694 INFO L93 Difference]: Finished difference Result 547 states and 938 transitions. [2020-07-21 11:25:42,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:42,696 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 91 [2020-07-21 11:25:42,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:42,726 INFO L225 Difference]: With dead ends: 547 [2020-07-21 11:25:42,727 INFO L226 Difference]: Without dead ends: 278 [2020-07-21 11:25:42,738 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 89 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 11:25:42,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-21 11:25:42,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-21 11:25:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-21 11:25:42,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 400 transitions. [2020-07-21 11:25:42,804 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 400 transitions. Word has length 91 [2020-07-21 11:25:42,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:42,805 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 400 transitions. [2020-07-21 11:25:42,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:42,805 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 400 transitions. [2020-07-21 11:25:42,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-07-21 11:25:42,811 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:42,811 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 11:25:43,026 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:43,026 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:43,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:43,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1768869960, now seen corresponding path program 1 times [2020-07-21 11:25:43,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:43,028 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1486875668] [2020-07-21 11:25:43,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:43,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:43,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 337 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:43,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:43,237 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:43,237 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:43,237 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1486875668] [2020-07-21 11:25:43,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:43,238 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:25:43,238 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1526468692] [2020-07-21 11:25:43,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:25:43,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:43,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:25:43,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:25:43,241 INFO L87 Difference]: Start difference. First operand 278 states and 400 transitions. Second operand 5 states. [2020-07-21 11:25:44,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:44,036 INFO L93 Difference]: Finished difference Result 701 states and 1021 transitions. [2020-07-21 11:25:44,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:25:44,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2020-07-21 11:25:44,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:44,043 INFO L225 Difference]: With dead ends: 701 [2020-07-21 11:25:44,043 INFO L226 Difference]: Without dead ends: 429 [2020-07-21 11:25:44,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 11:25:44,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 429 states. [2020-07-21 11:25:44,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 429 to 417. [2020-07-21 11:25:44,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 11:25:44,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 585 transitions. [2020-07-21 11:25:44,083 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 585 transitions. Word has length 101 [2020-07-21 11:25:44,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:44,084 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 585 transitions. [2020-07-21 11:25:44,084 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:25:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 585 transitions. [2020-07-21 11:25:44,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 11:25:44,088 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:44,088 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:44,301 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:44,302 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:44,305 INFO L82 PathProgramCache]: Analyzing trace with hash 1027824070, now seen corresponding path program 1 times [2020-07-21 11:25:44,305 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:44,306 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1334248283] [2020-07-21 11:25:44,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:44,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:44,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:25:44,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:44,481 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:44,481 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:44,482 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1334248283] [2020-07-21 11:25:44,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:44,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:44,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644813111] [2020-07-21 11:25:44,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:44,484 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:44,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:44,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:44,485 INFO L87 Difference]: Start difference. First operand 417 states and 585 transitions. Second operand 3 states. [2020-07-21 11:25:45,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:45,149 INFO L93 Difference]: Finished difference Result 1235 states and 1767 transitions. [2020-07-21 11:25:45,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:45,150 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-21 11:25:45,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:45,159 INFO L225 Difference]: With dead ends: 1235 [2020-07-21 11:25:45,159 INFO L226 Difference]: Without dead ends: 824 [2020-07-21 11:25:45,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 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 11:25:45,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 824 states. [2020-07-21 11:25:45,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 824 to 824. [2020-07-21 11:25:45,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 824 states. [2020-07-21 11:25:45,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 824 states to 824 states and 1130 transitions. [2020-07-21 11:25:45,204 INFO L78 Accepts]: Start accepts. Automaton has 824 states and 1130 transitions. Word has length 102 [2020-07-21 11:25:45,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:45,204 INFO L479 AbstractCegarLoop]: Abstraction has 824 states and 1130 transitions. [2020-07-21 11:25:45,205 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:45,205 INFO L276 IsEmpty]: Start isEmpty. Operand 824 states and 1130 transitions. [2020-07-21 11:25:45,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2020-07-21 11:25:45,211 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:45,212 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:45,426 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:45,427 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:45,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:45,428 INFO L82 PathProgramCache]: Analyzing trace with hash -1016446174, now seen corresponding path program 1 times [2020-07-21 11:25:45,428 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:45,429 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [40321610] [2020-07-21 11:25:45,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:45,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:45,506 INFO L263 TraceCheckSpWp]: Trace formula consists of 352 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:45,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:45,560 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:45,561 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:45,561 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [40321610] [2020-07-21 11:25:45,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:45,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 11:25:45,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894101842] [2020-07-21 11:25:45,562 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:25:45,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:45,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:25:45,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:25:45,563 INFO L87 Difference]: Start difference. First operand 824 states and 1130 transitions. Second operand 5 states. [2020-07-21 11:25:46,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:46,461 INFO L93 Difference]: Finished difference Result 2498 states and 3622 transitions. [2020-07-21 11:25:46,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 11:25:46,464 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 116 [2020-07-21 11:25:46,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:46,481 INFO L225 Difference]: With dead ends: 2498 [2020-07-21 11:25:46,482 INFO L226 Difference]: Without dead ends: 1680 [2020-07-21 11:25:46,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 11:25:46,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1680 states. [2020-07-21 11:25:46,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1680 to 1644. [2020-07-21 11:25:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1644 states. [2020-07-21 11:25:46,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1644 states to 1644 states and 2205 transitions. [2020-07-21 11:25:46,581 INFO L78 Accepts]: Start accepts. Automaton has 1644 states and 2205 transitions. Word has length 116 [2020-07-21 11:25:46,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:46,582 INFO L479 AbstractCegarLoop]: Abstraction has 1644 states and 2205 transitions. [2020-07-21 11:25:46,582 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:25:46,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1644 states and 2205 transitions. [2020-07-21 11:25:46,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-21 11:25:46,596 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:46,596 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 11:25:46,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:46,810 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:46,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:46,810 INFO L82 PathProgramCache]: Analyzing trace with hash 2004252269, now seen corresponding path program 1 times [2020-07-21 11:25:46,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:46,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1261382936] [2020-07-21 11:25:46,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:46,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 408 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:46,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:46,923 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-21 11:25:46,923 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:46,923 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1261382936] [2020-07-21 11:25:46,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:46,924 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:46,924 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045699469] [2020-07-21 11:25:46,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:46,925 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:46,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:46,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:46,925 INFO L87 Difference]: Start difference. First operand 1644 states and 2205 transitions. Second operand 3 states. [2020-07-21 11:25:47,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:47,635 INFO L93 Difference]: Finished difference Result 4501 states and 6119 transitions. [2020-07-21 11:25:47,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:47,636 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-21 11:25:47,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:47,665 INFO L225 Difference]: With dead ends: 4501 [2020-07-21 11:25:47,666 INFO L226 Difference]: Without dead ends: 2863 [2020-07-21 11:25:47,673 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 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 11:25:47,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2863 states. [2020-07-21 11:25:47,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2863 to 2593. [2020-07-21 11:25:47,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2593 states. [2020-07-21 11:25:47,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2593 states to 2593 states and 3407 transitions. [2020-07-21 11:25:47,795 INFO L78 Accepts]: Start accepts. Automaton has 2593 states and 3407 transitions. Word has length 125 [2020-07-21 11:25:47,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:47,796 INFO L479 AbstractCegarLoop]: Abstraction has 2593 states and 3407 transitions. [2020-07-21 11:25:47,797 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:47,797 INFO L276 IsEmpty]: Start isEmpty. Operand 2593 states and 3407 transitions. [2020-07-21 11:25:47,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-07-21 11:25:47,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:47,805 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 11:25:48,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:48,020 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:48,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:48,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1605716217, now seen corresponding path program 1 times [2020-07-21 11:25:48,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:48,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [367515804] [2020-07-21 11:25:48,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:48,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:25:48,123 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:48,188 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:48,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:48,308 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:48,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [367515804] [2020-07-21 11:25:48,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:48,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:25:48,312 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708991001] [2020-07-21 11:25:48,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:25:48,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:48,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:25:48,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:25:48,315 INFO L87 Difference]: Start difference. First operand 2593 states and 3407 transitions. Second operand 7 states. [2020-07-21 11:25:49,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:49,214 INFO L93 Difference]: Finished difference Result 5683 states and 7783 transitions. [2020-07-21 11:25:49,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:25:49,215 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 133 [2020-07-21 11:25:49,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:49,240 INFO L225 Difference]: With dead ends: 5683 [2020-07-21 11:25:49,249 INFO L226 Difference]: Without dead ends: 3096 [2020-07-21 11:25:49,259 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 261 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 11:25:49,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3096 states. [2020-07-21 11:25:49,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3096 to 2887. [2020-07-21 11:25:49,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2887 states. [2020-07-21 11:25:49,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2887 states to 2887 states and 3785 transitions. [2020-07-21 11:25:49,374 INFO L78 Accepts]: Start accepts. Automaton has 2887 states and 3785 transitions. Word has length 133 [2020-07-21 11:25:49,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:49,375 INFO L479 AbstractCegarLoop]: Abstraction has 2887 states and 3785 transitions. [2020-07-21 11:25:49,375 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:25:49,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2887 states and 3785 transitions. [2020-07-21 11:25:49,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 11:25:49,382 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:49,383 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:49,595 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:49,596 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:49,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:49,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1001122943, now seen corresponding path program 1 times [2020-07-21 11:25:49,597 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:49,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1306880651] [2020-07-21 11:25:49,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:49,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:49,681 INFO L263 TraceCheckSpWp]: Trace formula consists of 418 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 11:25:49,683 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:49,755 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:25:49,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:49,834 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 49 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 11:25:49,834 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1306880651] [2020-07-21 11:25:49,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:49,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 5 [2020-07-21 11:25:49,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375499418] [2020-07-21 11:25:49,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 11:25:49,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:49,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 11:25:49,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 11:25:49,836 INFO L87 Difference]: Start difference. First operand 2887 states and 3785 transitions. Second operand 5 states. [2020-07-21 11:25:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:50,529 INFO L93 Difference]: Finished difference Result 5830 states and 7798 transitions. [2020-07-21 11:25:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 11:25:50,530 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 137 [2020-07-21 11:25:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:50,553 INFO L225 Difference]: With dead ends: 5830 [2020-07-21 11:25:50,553 INFO L226 Difference]: Without dead ends: 2949 [2020-07-21 11:25:50,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 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 11:25:50,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2949 states. [2020-07-21 11:25:50,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2949 to 1384. [2020-07-21 11:25:50,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1384 states. [2020-07-21 11:25:50,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 1744 transitions. [2020-07-21 11:25:50,648 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 1744 transitions. Word has length 137 [2020-07-21 11:25:50,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:50,648 INFO L479 AbstractCegarLoop]: Abstraction has 1384 states and 1744 transitions. [2020-07-21 11:25:50,648 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 11:25:50,649 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 1744 transitions. [2020-07-21 11:25:50,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-21 11:25:50,656 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:50,656 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:50,870 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:50,871 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:50,871 INFO L82 PathProgramCache]: Analyzing trace with hash -1157453929, now seen corresponding path program 1 times [2020-07-21 11:25:50,871 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:50,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1495483069] [2020-07-21 11:25:50,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:50,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:50,959 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 11:25:50,962 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:51,037 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 11:25:51,037 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 11:25:51,037 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1495483069] [2020-07-21 11:25:51,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 11:25:51,038 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 11:25:51,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745713428] [2020-07-21 11:25:51,038 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 11:25:51,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:51,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 11:25:51,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:51,039 INFO L87 Difference]: Start difference. First operand 1384 states and 1744 transitions. Second operand 3 states. [2020-07-21 11:25:51,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:51,600 INFO L93 Difference]: Finished difference Result 3852 states and 4951 transitions. [2020-07-21 11:25:51,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 11:25:51,601 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-21 11:25:51,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:51,613 INFO L225 Difference]: With dead ends: 3852 [2020-07-21 11:25:51,614 INFO L226 Difference]: Without dead ends: 2474 [2020-07-21 11:25:51,618 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 11:25:51,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2474 states. [2020-07-21 11:25:51,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2474 to 2339. [2020-07-21 11:25:51,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2339 states. [2020-07-21 11:25:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 2910 transitions. [2020-07-21 11:25:51,681 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 2910 transitions. Word has length 149 [2020-07-21 11:25:51,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:51,681 INFO L479 AbstractCegarLoop]: Abstraction has 2339 states and 2910 transitions. [2020-07-21 11:25:51,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 11:25:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 2910 transitions. [2020-07-21 11:25:51,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-07-21 11:25:51,688 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 11:25:51,688 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:25:51,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:51,901 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 11:25:51,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 11:25:51,902 INFO L82 PathProgramCache]: Analyzing trace with hash 152592045, now seen corresponding path program 1 times [2020-07-21 11:25:51,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 11:25:51,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [25756945] [2020-07-21 11:25:51,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY 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 11:25:51,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-21 11:25:51,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 11:25:51,989 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 11:25:52,037 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:52,037 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 11:25:52,161 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 66 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 11:25:52,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [25756945] [2020-07-21 11:25:52,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 11:25:52,162 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 11:25:52,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069913824] [2020-07-21 11:25:52,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 11:25:52,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 11:25:52,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 11:25:52,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 11:25:52,164 INFO L87 Difference]: Start difference. First operand 2339 states and 2910 transitions. Second operand 7 states. [2020-07-21 11:25:52,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 11:25:52,975 INFO L93 Difference]: Finished difference Result 4593 states and 5779 transitions. [2020-07-21 11:25:52,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 11:25:52,976 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 157 [2020-07-21 11:25:52,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 11:25:52,976 INFO L225 Difference]: With dead ends: 4593 [2020-07-21 11:25:52,976 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 11:25:52,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 316 GetRequests, 309 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 11:25:52,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 11:25:52,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 11:25:52,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 11:25:52,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 11:25:52,987 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2020-07-21 11:25:52,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 11:25:52,988 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 11:25:52,988 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 11:25:52,988 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 11:25:52,988 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 11:25:53,202 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 11:25:53,206 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 11:25:53,704 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 91 [2020-07-21 11:25:53,900 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 91 [2020-07-21 11:25:54,642 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2020-07-21 11:25:55,216 WARN L193 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2020-07-21 11:25:55,777 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 50 [2020-07-21 11:25:55,781 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:25:55,782 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a16~0 |old(~a16~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (<= ~a7~0 |old(~a7~0)|)) [2020-07-21 11:25:55,782 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:25:55,782 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 11:25:55,782 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 11:25:55,782 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,783 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,783 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,783 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,783 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,783 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,783 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 11:25:55,784 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 11:25:55,784 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 11:25:55,784 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 11:25:55,784 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 11:25:55,784 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 11:25:55,784 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,785 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 11:25:55,786 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 431) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 11:25:55,787 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,788 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 11:25:55,789 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 11:25:55,790 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 11:25:55,791 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,792 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 11:25:55,793 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 11:25:55,794 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 11:25:55,795 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,796 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 11:25:55,797 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 11:25:55,798 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse1 (not (<= |old(~a16~0)| 5))) (.cse12 (not (= 1 |old(~a20~0)|))) (.cse11 (not (<= 5 |old(~a16~0)|))) (.cse13 (= 1 ~a20~0)) (.cse5 (<= ~a16~0 |old(~a16~0)|)) (.cse8 (= ~a21~0 |old(~a21~0)|)) (.cse9 (<= ~a7~0 |old(~a7~0)|))) (let ((.cse0 (not (<= 15 |old(~a8~0)|))) (.cse2 (<= 15 ~a8~0)) (.cse7 (<= 5 ~a16~0)) (.cse14 (= ~a17~0 |old(~a17~0)|)) (.cse4 (not (<= |old(~a17~0)| 0))) (.cse3 (not (= 1 |old(~a21~0)|))) (.cse6 (= 1 ~a17~0)) (.cse15 (or (and .cse5 .cse13 .cse8 .cse9) (and .cse5 (<= ~a16~0 5) .cse8 .cse9))) (.cse16 (let ((.cse17 (not (<= |old(~a21~0)| 0)))) (and (or .cse17 .cse1) (or .cse12 .cse17 .cse11)))) (.cse10 (not (= 1 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse2 .cse7 .cse8 .cse9) .cse0 .cse10 .cse11 .cse3) (or .cse12 .cse10 (and .cse5 .cse7 .cse6 .cse13 .cse8 .cse9) .cse11 .cse3) (or .cse0 (and .cse5 .cse6 .cse2 .cse8 .cse9) .cse1 .cse10 .cse3) (or .cse7 .cse1 .cse11 .cse3 .cse4) (or .cse12 .cse1 .cse13 .cse3 .cse4) (or .cse12 (and .cse5 .cse14 .cse7 .cse13 .cse8 .cse9) .cse11 .cse3 .cse4) (or .cse0 .cse11 .cse3 .cse4 (and .cse5 .cse14 .cse2 .cse7 .cse8 .cse9)) (or (and .cse14 .cse15) .cse16 .cse4) (or (and .cse5 .cse14 .cse8 .cse9) .cse1 .cse3 .cse4) (or .cse12 .cse1 .cse10 (and .cse5 .cse6 .cse13 .cse8 .cse9) .cse3) (or (and .cse6 .cse15) .cse16 .cse10)))) [2020-07-21 11:25:55,798 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 11:25:55,798 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 11:25:55,799 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 11:25:55,800 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 11:25:55,801 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 11:25:55,802 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 11:25:55,803 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 11:25:55,804 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 11:25:55,805 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-21 11:25:55,805 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 11:25:55,805 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 11:25:55,805 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a20~0) (= ~a21~0 |old(~a21~0)|) (<= ~a7~0 |old(~a7~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-21 11:25:55,805 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:25:55,805 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse4 (<= ~a16~0 5)) (.cse1 (= 1 ~a20~0))) (let ((.cse3 (let ((.cse7 (<= ~a21~0 0))) (or (and .cse7 .cse4) (and .cse7 .cse1)))) (.cse0 (<= ~a17~0 0)) (.cse2 (= 1 ~a17~0)) (.cse6 (<= 15 ~a8~0)) (.cse5 (= 1 ~a21~0))) (or (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse2 .cse3) (and .cse0 .cse4 .cse5) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse6 .cse5) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse5 .cse1) (and .cse2 .cse6 .cse5) (not (= 1 |old(~a21~0)|))))) [2020-07-21 11:25:55,806 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 11:25:55,806 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 11:25:55,806 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse4 (<= ~a16~0 5)) (.cse1 (= 1 ~a20~0))) (let ((.cse3 (let ((.cse7 (<= ~a21~0 0))) (or (and .cse7 .cse4) (and .cse7 .cse1)))) (.cse0 (<= ~a17~0 0)) (.cse2 (= 1 ~a17~0)) (.cse6 (<= 15 ~a8~0)) (.cse5 (= 1 ~a21~0))) (or (and .cse0 .cse1 (= ~a21~0 |old(~a21~0)|)) (not (<= |old(~a7~0)| 0)) (and .cse2 .cse3) (and .cse0 .cse4 .cse5) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse3) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (and .cse0 .cse6 .cse5) (not (<= |old(~a16~0)| 5)) (and .cse2 .cse5 .cse1) (and .cse2 .cse6 .cse5) (not (= 1 |old(~a21~0)|))))) [2020-07-21 11:25:55,806 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 11:25:55,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 11:25:55 BoogieIcfgContainer [2020-07-21 11:25:55,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 11:25:55,850 INFO L168 Benchmark]: Toolchain (without parser) took 16871.27 ms. Allocated memory was 144.2 MB in the beginning and 418.4 MB in the end (delta: 274.2 MB). Free memory was 100.7 MB in the beginning and 319.5 MB in the end (delta: -218.9 MB). Peak memory consumption was 251.5 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:55,850 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 11:25:55,851 INFO L168 Benchmark]: CACSL2BoogieTranslator took 777.70 ms. Allocated memory was 144.2 MB in the beginning and 207.1 MB in the end (delta: 62.9 MB). Free memory was 100.3 MB in the beginning and 173.2 MB in the end (delta: -73.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:55,852 INFO L168 Benchmark]: Boogie Preprocessor took 150.97 ms. Allocated memory is still 207.1 MB. Free memory was 173.2 MB in the beginning and 168.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:55,853 INFO L168 Benchmark]: RCFGBuilder took 1338.73 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 168.1 MB in the beginning and 182.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:55,854 INFO L168 Benchmark]: TraceAbstraction took 14598.09 ms. Allocated memory was 237.5 MB in the beginning and 418.4 MB in the end (delta: 180.9 MB). Free memory was 182.7 MB in the beginning and 319.5 MB in the end (delta: -136.8 MB). Peak memory consumption was 240.2 MB. Max. memory is 7.1 GB. [2020-07-21 11:25:55,862 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.4 MB in the beginning and 120.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 777.70 ms. Allocated memory was 144.2 MB in the beginning and 207.1 MB in the end (delta: 62.9 MB). Free memory was 100.3 MB in the beginning and 173.2 MB in the end (delta: -73.0 MB). Peak memory consumption was 31.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 150.97 ms. Allocated memory is still 207.1 MB. Free memory was 173.2 MB in the beginning and 168.8 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1338.73 ms. Allocated memory was 207.1 MB in the beginning and 237.5 MB in the end (delta: 30.4 MB). Free memory was 168.1 MB in the beginning and 182.7 MB in the end (delta: -14.6 MB). Peak memory consumption was 85.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14598.09 ms. Allocated memory was 237.5 MB in the beginning and 418.4 MB in the end (delta: 180.9 MB). Free memory was 182.7 MB in the beginning and 319.5 MB in the end (delta: -136.8 MB). Peak memory consumption was 240.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 431]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((a17 <= 0 && 1 == a20) && a21 == \old(a21)) || !(\old(a7) <= 0)) || (1 == a17 && ((a21 <= 0 && a16 <= 5) || (a21 <= 0 && 1 == a20)))) || ((a17 <= 0 && a16 <= 5) && 1 == a21)) || !(1 == \old(a17))) || !(5 <= \old(a16))) || (a17 <= 0 && ((a21 <= 0 && a16 <= 5) || (a21 <= 0 && 1 == a20)))) || !(1 == \old(a20))) || !(15 <= \old(a8))) || ((a17 <= 0 && 15 <= a8) && 1 == a21)) || !(\old(a16) <= 5)) || ((1 == a17 && 1 == a21) && 1 == a20)) || ((1 == a17 && 15 <= a8) && 1 == a21)) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.8s, OverallIterations: 9, TraceHistogramMax: 3, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 448 SDtfs, 2366 SDslu, 210 SDs, 0 SdLazy, 4274 SolverSat, 769 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1541 GetRequests, 1506 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2887occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 9 MinimizatonAttempts, 2227 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 119 PreInvPairs, 163 NumberOfFragments, 736 HoareAnnotationTreeSize, 119 FomulaSimplifications, 10531 FormulaSimplificationTreeSizeReduction, 0.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3586 FormulaSimplificationTreeSizeReductionInter, 1.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 1111 NumberOfCodeBlocks, 1111 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 1526 ConstructedInterpolants, 0 QuantifiedInterpolants, 484280 SizeOfPredicates, 13 NumberOfNonLiveVariables, 3420 ConjunctsInSsa, 53 ConjunctsInUnsatCore, 12 InterpolantComputations, 6 PerfectInterpolantSequences, 443/480 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...