/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_FUNCTIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 14:09:35,566 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 14:09:35,568 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 14:09:35,580 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 14:09:35,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 14:09:35,582 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 14:09:35,583 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 14:09:35,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 14:09:35,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 14:09:35,588 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 14:09:35,589 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 14:09:35,590 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 14:09:35,590 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 14:09:35,591 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 14:09:35,592 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 14:09:35,593 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 14:09:35,594 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 14:09:35,595 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 14:09:35,597 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 14:09:35,599 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 14:09:35,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 14:09:35,602 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 14:09:35,603 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 14:09:35,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 14:09:35,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 14:09:35,618 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 14:09:35,621 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 14:09:35,622 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 14:09:35,623 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 [2020-07-20 14:09:35,654 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 14:09:35,654 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 14:09:35,656 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 14:09:35,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 14:09:35,657 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 14:09:35,657 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 14:09:35,657 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 14:09:35,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 14:09:35,658 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 14:09:35,658 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 14:09:35,659 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 14:09:35,659 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 14:09:35,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 14:09:35,660 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 14:09:35,660 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 14:09:35,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 14:09:35,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 14:09:35,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 14:09:35,661 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 14:09:35,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 14:09:35,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 14:09:35,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 14:09:35,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 14:09:35,662 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 14:09:35,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 14:09:35,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 14:09:35,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:35,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 14:09:35,663 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 14:09:35,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 14:09:35,946 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 14:09:35,959 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 14:09:35,963 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 14:09:35,964 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 14:09:35,965 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 14:09:35,965 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-20 14:09:36,023 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a935e21/a10ab12dbca14a708a86309a6e5fae33/FLAGe8e06cb1c [2020-07-20 14:09:36,533 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 14:09:36,534 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label36.c [2020-07-20 14:09:36,552 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a935e21/a10ab12dbca14a708a86309a6e5fae33/FLAGe8e06cb1c [2020-07-20 14:09:36,795 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31a935e21/a10ab12dbca14a708a86309a6e5fae33 [2020-07-20 14:09:36,804 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 14:09:36,807 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 14:09:36,808 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 14:09:36,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 14:09:36,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 14:09:36,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:09:36" (1/1) ... [2020-07-20 14:09:36,816 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2faf0ef2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:36, skipping insertion in model container [2020-07-20 14:09:36,817 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 02:09:36" (1/1) ... [2020-07-20 14:09:36,825 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 14:09:36,868 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 14:09:37,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:09:37,445 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 14:09:37,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 14:09:37,571 INFO L208 MainTranslator]: Completed translation [2020-07-20 14:09:37,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37 WrapperNode [2020-07-20 14:09:37,572 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 14:09:37,573 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 14:09:37,573 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 14:09:37,573 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 14:09:37,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,605 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,642 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,659 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (1/1) ... [2020-07-20 14:09:37,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 14:09:37,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 14:09:37,673 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 14:09:37,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 14:09:37,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (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 [2020-07-20 14:09:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 14:09:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 14:09:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 14:09:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 14:09:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 14:09:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 14:09:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 14:09:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 14:09:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 14:09:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 14:09:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 14:09:39,047 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 14:09:39,047 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 14:09:39,059 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:09:39 BoogieIcfgContainer [2020-07-20 14:09:39,059 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 14:09:39,062 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 14:09:39,062 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 14:09:39,066 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 14:09:39,066 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 02:09:36" (1/3) ... [2020-07-20 14:09:39,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a430be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:09:39, skipping insertion in model container [2020-07-20 14:09:39,067 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 02:09:37" (2/3) ... [2020-07-20 14:09:39,067 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a430be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 02:09:39, skipping insertion in model container [2020-07-20 14:09:39,068 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 02:09:39" (3/3) ... [2020-07-20 14:09:39,071 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label36.c [2020-07-20 14:09:39,082 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 14:09:39,095 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 14:09:39,109 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 14:09:39,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 14:09:39,139 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 14:09:39,140 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 14:09:39,140 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 14:09:39,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 14:09:39,140 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 14:09:39,141 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 14:09:39,141 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 14:09:39,161 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 14:09:39,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-20 14:09:39,169 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:39,170 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] [2020-07-20 14:09:39,171 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:39,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:39,176 INFO L82 PathProgramCache]: Analyzing trace with hash 1093393358, now seen corresponding path program 1 times [2020-07-20 14:09:39,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:39,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948340531] [2020-07-20 14:09:39,184 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:39,337 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:39,338 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:39,341 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 14:09:39,355 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:39,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:39,459 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:39,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948340531] [2020-07-20 14:09:39,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:39,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:39,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250455629] [2020-07-20 14:09:39,475 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:39,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:39,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:39,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:39,498 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-20 14:09:40,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:40,520 INFO L93 Difference]: Finished difference Result 571 states and 989 transitions. [2020-07-20 14:09:40,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:40,522 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-20 14:09:40,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:40,544 INFO L225 Difference]: With dead ends: 571 [2020-07-20 14:09:40,545 INFO L226 Difference]: Without dead ends: 294 [2020-07-20 14:09:40,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:40,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-20 14:09:40,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-20 14:09:40,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-20 14:09:40,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 391 transitions. [2020-07-20 14:09:40,676 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 391 transitions. Word has length 45 [2020-07-20 14:09:40,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:40,677 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 391 transitions. [2020-07-20 14:09:40,677 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:40,677 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 391 transitions. [2020-07-20 14:09:40,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 14:09:40,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:40,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:40,902 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:40,902 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:40,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:40,904 INFO L82 PathProgramCache]: Analyzing trace with hash -1074039414, now seen corresponding path program 1 times [2020-07-20 14:09:40,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:40,905 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [443573617] [2020-07-20 14:09:40,905 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:41,005 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:41,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:41,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:41,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:41,060 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:41,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:41,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [443573617] [2020-07-20 14:09:41,061 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:41,061 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:41,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1533246795] [2020-07-20 14:09:41,063 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:41,064 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:41,064 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:41,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:41,064 INFO L87 Difference]: Start difference. First operand 294 states and 391 transitions. Second operand 3 states. [2020-07-20 14:09:41,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:41,809 INFO L93 Difference]: Finished difference Result 725 states and 1001 transitions. [2020-07-20 14:09:41,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:41,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-20 14:09:41,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:41,816 INFO L225 Difference]: With dead ends: 725 [2020-07-20 14:09:41,816 INFO L226 Difference]: Without dead ends: 437 [2020-07-20 14:09:41,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:41,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2020-07-20 14:09:41,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 437. [2020-07-20 14:09:41,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-07-20 14:09:41,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 593 transitions. [2020-07-20 14:09:41,840 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 593 transitions. Word has length 115 [2020-07-20 14:09:41,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:41,840 INFO L479 AbstractCegarLoop]: Abstraction has 437 states and 593 transitions. [2020-07-20 14:09:41,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:41,841 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 593 transitions. [2020-07-20 14:09:41,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-20 14:09:41,843 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:41,844 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:42,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:42,057 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:42,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:42,059 INFO L82 PathProgramCache]: Analyzing trace with hash -1870718803, now seen corresponding path program 1 times [2020-07-20 14:09:42,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:42,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940274008] [2020-07-20 14:09:42,060 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:42,148 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:42,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:42,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:42,154 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:42,202 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:42,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:42,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940274008] [2020-07-20 14:09:42,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:42,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:42,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724188770] [2020-07-20 14:09:42,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:42,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:42,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:42,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:42,217 INFO L87 Difference]: Start difference. First operand 437 states and 593 transitions. Second operand 3 states. [2020-07-20 14:09:42,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:42,921 INFO L93 Difference]: Finished difference Result 1011 states and 1407 transitions. [2020-07-20 14:09:42,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:42,926 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-20 14:09:42,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:42,930 INFO L225 Difference]: With dead ends: 1011 [2020-07-20 14:09:42,931 INFO L226 Difference]: Without dead ends: 580 [2020-07-20 14:09:42,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:42,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-20 14:09:42,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-20 14:09:42,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-20 14:09:42,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 807 transitions. [2020-07-20 14:09:42,978 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 807 transitions. Word has length 122 [2020-07-20 14:09:42,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:42,979 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 807 transitions. [2020-07-20 14:09:42,979 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:42,979 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 807 transitions. [2020-07-20 14:09:42,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2020-07-20 14:09:42,983 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:42,983 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:43,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:43,197 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:43,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:43,198 INFO L82 PathProgramCache]: Analyzing trace with hash -1404562463, now seen corresponding path program 1 times [2020-07-20 14:09:43,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:43,199 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [122332298] [2020-07-20 14:09:43,199 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:43,298 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:43,298 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:43,300 INFO L263 TraceCheckSpWp]: Trace formula consists of 267 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:43,313 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:43,351 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:43,351 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:43,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [122332298] [2020-07-20 14:09:43,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:43,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:43,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614658726] [2020-07-20 14:09:43,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:43,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:43,354 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:43,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:43,355 INFO L87 Difference]: Start difference. First operand 580 states and 807 transitions. Second operand 3 states. [2020-07-20 14:09:44,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:44,063 INFO L93 Difference]: Finished difference Result 1154 states and 1634 transitions. [2020-07-20 14:09:44,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:44,065 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 132 [2020-07-20 14:09:44,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:44,072 INFO L225 Difference]: With dead ends: 1154 [2020-07-20 14:09:44,072 INFO L226 Difference]: Without dead ends: 1152 [2020-07-20 14:09:44,073 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:44,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1152 states. [2020-07-20 14:09:44,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1152 to 866. [2020-07-20 14:09:44,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 866 states. [2020-07-20 14:09:44,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 866 states to 866 states and 1248 transitions. [2020-07-20 14:09:44,111 INFO L78 Accepts]: Start accepts. Automaton has 866 states and 1248 transitions. Word has length 132 [2020-07-20 14:09:44,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:44,112 INFO L479 AbstractCegarLoop]: Abstraction has 866 states and 1248 transitions. [2020-07-20 14:09:44,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:44,112 INFO L276 IsEmpty]: Start isEmpty. Operand 866 states and 1248 transitions. [2020-07-20 14:09:44,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-07-20 14:09:44,117 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:44,117 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:44,330 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:44,331 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:44,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:44,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1402576581, now seen corresponding path program 1 times [2020-07-20 14:09:44,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:44,333 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1044622155] [2020-07-20 14:09:44,333 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:44,458 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:44,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:44,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:44,464 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 14:09:44,543 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:44,543 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1044622155] [2020-07-20 14:09:44,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:44,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:44,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889757926] [2020-07-20 14:09:44,545 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:44,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:44,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:44,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:44,546 INFO L87 Difference]: Start difference. First operand 866 states and 1248 transitions. Second operand 3 states. [2020-07-20 14:09:45,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:45,302 INFO L93 Difference]: Finished difference Result 2441 states and 3576 transitions. [2020-07-20 14:09:45,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:45,302 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 222 [2020-07-20 14:09:45,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:45,312 INFO L225 Difference]: With dead ends: 2441 [2020-07-20 14:09:45,313 INFO L226 Difference]: Without dead ends: 1581 [2020-07-20 14:09:45,315 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 219 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:45,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2020-07-20 14:09:45,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1581. [2020-07-20 14:09:45,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1581 states. [2020-07-20 14:09:45,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1581 states to 1581 states and 2156 transitions. [2020-07-20 14:09:45,370 INFO L78 Accepts]: Start accepts. Automaton has 1581 states and 2156 transitions. Word has length 222 [2020-07-20 14:09:45,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:45,371 INFO L479 AbstractCegarLoop]: Abstraction has 1581 states and 2156 transitions. [2020-07-20 14:09:45,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:45,371 INFO L276 IsEmpty]: Start isEmpty. Operand 1581 states and 2156 transitions. [2020-07-20 14:09:45,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-20 14:09:45,377 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:45,377 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:45,591 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:45,592 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:45,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:45,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1725044783, now seen corresponding path program 1 times [2020-07-20 14:09:45,593 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:45,594 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1881319838] [2020-07-20 14:09:45,594 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:45,713 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:45,713 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:45,715 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:45,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:45,850 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:45,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:46,010 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:46,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1881319838] [2020-07-20 14:09:46,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:46,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 14:09:46,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278552412] [2020-07-20 14:09:46,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 14:09:46,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:46,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 14:09:46,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 14:09:46,014 INFO L87 Difference]: Start difference. First operand 1581 states and 2156 transitions. Second operand 6 states. [2020-07-20 14:09:47,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:47,214 INFO L93 Difference]: Finished difference Result 3500 states and 4849 transitions. [2020-07-20 14:09:47,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 14:09:47,214 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 240 [2020-07-20 14:09:47,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:47,229 INFO L225 Difference]: With dead ends: 3500 [2020-07-20 14:09:47,229 INFO L226 Difference]: Without dead ends: 1925 [2020-07-20 14:09:47,239 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 485 GetRequests, 476 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 14:09:47,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-20 14:09:47,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1762. [2020-07-20 14:09:47,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1762 states. [2020-07-20 14:09:47,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1762 states to 1762 states and 2091 transitions. [2020-07-20 14:09:47,319 INFO L78 Accepts]: Start accepts. Automaton has 1762 states and 2091 transitions. Word has length 240 [2020-07-20 14:09:47,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:47,320 INFO L479 AbstractCegarLoop]: Abstraction has 1762 states and 2091 transitions. [2020-07-20 14:09:47,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 14:09:47,320 INFO L276 IsEmpty]: Start isEmpty. Operand 1762 states and 2091 transitions. [2020-07-20 14:09:47,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2020-07-20 14:09:47,326 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:47,327 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:47,540 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:47,541 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:47,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:47,542 INFO L82 PathProgramCache]: Analyzing trace with hash -335118642, now seen corresponding path program 1 times [2020-07-20 14:09:47,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:47,543 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1341965940] [2020-07-20 14:09:47,544 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:47,739 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:47,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:47,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:47,748 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:47,901 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:47,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 14:09:48,065 INFO L134 CoverageAnalysis]: Checked inductivity of 155 backedges. 153 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 14:09:48,066 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1341965940] [2020-07-20 14:09:48,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 14:09:48,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 14:09:48,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054037400] [2020-07-20 14:09:48,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 14:09:48,069 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:48,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 14:09:48,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-20 14:09:48,070 INFO L87 Difference]: Start difference. First operand 1762 states and 2091 transitions. Second operand 7 states. [2020-07-20 14:09:49,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:49,580 INFO L93 Difference]: Finished difference Result 5058 states and 6269 transitions. [2020-07-20 14:09:49,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 14:09:49,581 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 251 [2020-07-20 14:09:49,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:49,593 INFO L225 Difference]: With dead ends: 5058 [2020-07-20 14:09:49,593 INFO L226 Difference]: Without dead ends: 2104 [2020-07-20 14:09:49,606 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 508 GetRequests, 497 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-20 14:09:49,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2104 states. [2020-07-20 14:09:49,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2104 to 2060. [2020-07-20 14:09:49,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2060 states. [2020-07-20 14:09:49,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2060 states to 2060 states and 2357 transitions. [2020-07-20 14:09:49,677 INFO L78 Accepts]: Start accepts. Automaton has 2060 states and 2357 transitions. Word has length 251 [2020-07-20 14:09:49,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:49,678 INFO L479 AbstractCegarLoop]: Abstraction has 2060 states and 2357 transitions. [2020-07-20 14:09:49,678 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 14:09:49,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2060 states and 2357 transitions. [2020-07-20 14:09:49,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-07-20 14:09:49,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:49,686 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:49,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:49,900 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:49,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:49,900 INFO L82 PathProgramCache]: Analyzing trace with hash 2108247554, now seen corresponding path program 1 times [2020-07-20 14:09:49,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:49,901 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [360331112] [2020-07-20 14:09:49,901 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:50,039 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:50,039 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:50,041 INFO L263 TraceCheckSpWp]: Trace formula consists of 477 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:50,045 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-07-20 14:09:50,148 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:50,148 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [360331112] [2020-07-20 14:09:50,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:50,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:50,149 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751955289] [2020-07-20 14:09:50,150 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:50,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:50,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:50,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:50,151 INFO L87 Difference]: Start difference. First operand 2060 states and 2357 transitions. Second operand 3 states. [2020-07-20 14:09:50,698 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:50,699 INFO L93 Difference]: Finished difference Result 2207 states and 2504 transitions. [2020-07-20 14:09:50,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:50,701 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 301 [2020-07-20 14:09:50,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:50,713 INFO L225 Difference]: With dead ends: 2207 [2020-07-20 14:09:50,713 INFO L226 Difference]: Without dead ends: 2058 [2020-07-20 14:09:50,715 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:50,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2058 states. [2020-07-20 14:09:50,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2058 to 2058. [2020-07-20 14:09:50,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2058 states. [2020-07-20 14:09:50,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2058 states to 2058 states and 2345 transitions. [2020-07-20 14:09:50,764 INFO L78 Accepts]: Start accepts. Automaton has 2058 states and 2345 transitions. Word has length 301 [2020-07-20 14:09:50,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:50,764 INFO L479 AbstractCegarLoop]: Abstraction has 2058 states and 2345 transitions. [2020-07-20 14:09:50,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:50,765 INFO L276 IsEmpty]: Start isEmpty. Operand 2058 states and 2345 transitions. [2020-07-20 14:09:50,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 371 [2020-07-20 14:09:50,774 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 14:09:50,775 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 14:09:50,988 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:50,989 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 14:09:50,989 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 14:09:50,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1499776183, now seen corresponding path program 1 times [2020-07-20 14:09:50,990 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 14:09:50,991 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [891168163] [2020-07-20 14:09:50,991 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:51,154 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 14:09:51,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 14:09:51,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 14:09:51,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 14:09:51,281 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 120 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-20 14:09:51,281 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 14:09:51,282 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [891168163] [2020-07-20 14:09:51,282 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 14:09:51,282 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 14:09:51,282 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378250910] [2020-07-20 14:09:51,284 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 14:09:51,285 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 14:09:51,285 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 14:09:51,285 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:51,285 INFO L87 Difference]: Start difference. First operand 2058 states and 2345 transitions. Second operand 3 states. [2020-07-20 14:09:51,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 14:09:51,795 INFO L93 Difference]: Finished difference Result 2058 states and 2345 transitions. [2020-07-20 14:09:51,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 14:09:51,796 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 370 [2020-07-20 14:09:51,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 14:09:51,797 INFO L225 Difference]: With dead ends: 2058 [2020-07-20 14:09:51,797 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 14:09:51,801 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 368 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 14:09:51,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 14:09:51,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 14:09:51,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 14:09:51,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 14:09:51,802 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 370 [2020-07-20 14:09:51,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 14:09:51,802 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 14:09:51,802 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 14:09:51,802 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 14:09:51,803 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 14:09:52,003 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 14:09:52,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 14:09:53,095 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 59 [2020-07-20 14:09:53,238 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-20 14:09:53,376 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 30 [2020-07-20 14:09:53,381 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:53,382 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= |old(~a10~0)| ~a10~0) (<= ~a19~0 |old(~a19~0)|)) [2020-07-20 14:09:53,382 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,383 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 14:09:53,384 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,385 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 14:09:53,386 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 14:09:53,386 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 14:09:53,386 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 14:09:53,386 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 14:09:53,386 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 14:09:53,388 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 121) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 14:09:53,389 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 14:09:53,390 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 14:09:53,391 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 14:09:53,391 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,391 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,391 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,391 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,396 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 14:09:53,397 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 14:09:53,398 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 14:09:53,399 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,400 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 14:09:53,401 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 14:09:53,402 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 14:09:53,403 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 14:09:53,404 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 14:09:53,405 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 14:09:53,405 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,406 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 14:09:53,407 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 14:09:53,409 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 14:09:53,409 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 14:09:53,409 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 14:09:53,409 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,410 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 14:09:53,411 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 14:09:53,412 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 14:09:53,413 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 14:09:53,413 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 14:09:53,413 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse10 (<= |old(~a10~0)| ~a10~0)) (.cse11 (<= ~a19~0 |old(~a19~0)|))) (let ((.cse2 (not (< 218 |old(~a1~0)|))) (.cse6 (< 218 ~a1~0)) (.cse7 (and (<= 8 ~a19~0) .cse10 .cse11)) (.cse8 (not (<= 8 |old(~a19~0)|))) (.cse0 (not (< |old(~a19~0)| 10))) (.cse5 (not (<= 2 |old(~a10~0)|))) (.cse9 (not (<= |old(~a10~0)| 2))) (.cse1 (not (<= |old(~a10~0)| 3))) (.cse3 (not (<= |old(~a19~0)| 8))) (.cse4 (and .cse10 .cse11))) (and (or .cse0 .cse1 (<= ~a10~0 3)) (or .cse2 .cse3 .cse4 .cse5) (or .cse2 .cse0 .cse6 .cse5) (or .cse7 .cse3 .cse8) (or (<= ~a10~0 0) (not (<= |old(~a10~0)| 0))) (or .cse2 .cse6 .cse9) (or .cse7 .cse8 .cse9) (or .cse0 (not (<= 9 |old(~a19~0)|)) (and (<= 9 ~a19~0) .cse10 (< ~a19~0 10)) .cse5) (or (not (<= |old(~a19~0)| 6)) .cse4) (or (<= ~a10~0 2) .cse9) (or .cse1 .cse3 .cse4)))) [2020-07-20 14:09:53,413 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,414 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 14:09:53,415 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 14:09:53,416 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 14:09:53,417 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 14:09:53,418 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,419 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 14:09:53,420 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 14:09:53,421 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 14:09:53,421 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 14:09:53,421 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 14:09:53,421 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 14:09:53,421 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 14:09:53,421 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 9 ~a19~0) (< ~a19~0 10)) [2020-07-20 14:09:53,421 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 14:09:53,422 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 14:09:53,422 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (< |old(~a19~0)| 10)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and (<= ~a10~0 0) (<= 9 ~a19~0) (<= |old(~a10~0)| ~a10~0) (< ~a19~0 10))) [2020-07-20 14:09:53,422 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:09:53,422 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-20 14:09:53,422 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 14:09:53,423 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 14:09:53,423 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 8))) (or (not (< |old(~a19~0)| 10)) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (and .cse0 (< 218 ~a1~0)) (not (<= 9 |old(~a19~0)|)) (<= ~a10~0 2) (and (<= 8 ~a19~0) (< ~a19~0 10)) (and .cse0 (<= ~a10~0 3)))) [2020-07-20 14:09:53,423 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 14:09:53,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 02:09:53 BoogieIcfgContainer [2020-07-20 14:09:53,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 14:09:53,456 INFO L168 Benchmark]: Toolchain (without parser) took 16647.48 ms. Allocated memory was 145.2 MB in the beginning and 474.0 MB in the end (delta: 328.7 MB). Free memory was 100.3 MB in the beginning and 108.7 MB in the end (delta: -8.4 MB). Peak memory consumption was 320.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:53,457 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-20 14:09:53,458 INFO L168 Benchmark]: CACSL2BoogieTranslator took 764.11 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 100.1 MB in the beginning and 171.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:53,459 INFO L168 Benchmark]: Boogie Preprocessor took 99.82 ms. Allocated memory is still 205.5 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:53,462 INFO L168 Benchmark]: RCFGBuilder took 1386.65 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 182.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:53,466 INFO L168 Benchmark]: TraceAbstraction took 14389.18 ms. Allocated memory was 238.0 MB in the beginning and 474.0 MB in the end (delta: 235.9 MB). Free memory was 182.1 MB in the beginning and 108.7 MB in the end (delta: 73.4 MB). Peak memory consumption was 309.3 MB. Max. memory is 7.1 GB. [2020-07-20 14:09:53,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.2 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 764.11 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 100.1 MB in the beginning and 171.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.82 ms. Allocated memory is still 205.5 MB. Free memory was 171.7 MB in the beginning and 166.7 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1386.65 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 166.7 MB in the beginning and 182.1 MB in the end (delta: -15.4 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 14389.18 ms. Allocated memory was 238.0 MB in the beginning and 474.0 MB in the end (delta: 235.9 MB). Free memory was 182.1 MB in the beginning and 108.7 MB in the end (delta: 73.4 MB). Peak memory consumption was 309.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 121]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: ((((((!(\old(a19) < 10) || a19 <= 6) || !(\old(a10) <= 0)) || (a19 <= 8 && 218 < a1)) || !(9 <= \old(a19))) || a10 <= 2) || (8 <= a19 && a19 < 10)) || (a19 <= 8 && a10 <= 3) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 12.8s, OverallIterations: 9, TraceHistogramMax: 4, AutomataDifference: 7.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 713 SDtfs, 1626 SDslu, 157 SDs, 0 SdLazy, 4446 SolverSat, 884 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2293 GetRequests, 2265 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2060occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 493 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 72 PreInvPairs, 134 NumberOfFragments, 290 HoareAnnotationTreeSize, 72 FomulaSimplifications, 3102 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2039 FormulaSimplificationTreeSizeReductionInter, 0.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 1798 NumberOfCodeBlocks, 1798 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2278 ConstructedInterpolants, 0 QuantifiedInterpolants, 1152842 SizeOfPredicates, 15 NumberOfNonLiveVariables, 3220 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 11 InterpolantComputations, 7 PerfectInterpolantSequences, 1461/1469 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...