/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 BIGGEST_EQUIVALENCE_CLASS --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_label39.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:29:05,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:29:05,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:29:06,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-21 01:29:06,032 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:29:06,034 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:29:06,037 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:29:06,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:29:06,041 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:29:06,042 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:29:06,044 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:29:06,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:29:06,055 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:29:06,059 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:29:06,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:29:06,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:29:06,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:29:06,078 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:29:06,117 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:29:06,118 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:29:06,119 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:29:06,122 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:29:06,123 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:29:06,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:29:06,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:29:06,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:29:06,123 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:29:06,123 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:29:06,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:29:06,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:29:06,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:29:06,124 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:29:06,124 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:29:06,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:29:06,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:29:06,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:29:06,125 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:29:06,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:29:06,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:29:06,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:29:06,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:29:06,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:29:06,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:29:06,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:29:06,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:06,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:29:06,129 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:29:06,130 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 -> BIGGEST_EQUIVALENCE_CLASS 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 [2020-07-21 01:29:06,424 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:29:06,439 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:29:06,442 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:29:06,444 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:29:06,445 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:29:06,445 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-07-21 01:29:06,512 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c0c4407/7ce760fcbe5f431d94b902f76bad9a0b/FLAG3c68388af [2020-07-21 01:29:07,087 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:29:07,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label39.c [2020-07-21 01:29:07,101 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c0c4407/7ce760fcbe5f431d94b902f76bad9a0b/FLAG3c68388af [2020-07-21 01:29:07,371 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54c0c4407/7ce760fcbe5f431d94b902f76bad9a0b [2020-07-21 01:29:07,380 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:29:07,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:29:07,383 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:29:07,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:29:07,387 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:29:07,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:29:07" (1/1) ... [2020-07-21 01:29:07,391 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328fb091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:07, skipping insertion in model container [2020-07-21 01:29:07,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:29:07" (1/1) ... [2020-07-21 01:29:07,399 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:29:07,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:29:07,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:29:07,909 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:29:08,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:29:08,157 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:29:08,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08 WrapperNode [2020-07-21 01:29:08,158 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:29:08,158 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:29:08,158 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:29:08,159 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:29:08,173 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,173 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,231 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,248 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... [2020-07-21 01:29:08,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:29:08,267 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:29:08,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:29:08,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:29:08,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:29:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:29:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:29:08,327 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:29:08,328 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:29:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:29:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:29:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:29:08,328 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:29:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:29:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:29:08,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:29:09,695 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:29:09,696 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:29:09,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:29:09 BoogieIcfgContainer [2020-07-21 01:29:09,708 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:29:09,710 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:29:09,710 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:29:09,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:29:09,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:29:07" (1/3) ... [2020-07-21 01:29:09,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab37396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:29:09, skipping insertion in model container [2020-07-21 01:29:09,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:29:08" (2/3) ... [2020-07-21 01:29:09,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ab37396 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:29:09, skipping insertion in model container [2020-07-21 01:29:09,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:29:09" (3/3) ... [2020-07-21 01:29:09,718 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label39.c [2020-07-21 01:29:09,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:29:09,745 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:29:09,763 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:29:09,803 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:29:09,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:29:09,804 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:29:09,804 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:29:09,805 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:29:09,805 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:29:09,805 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:29:09,805 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:29:09,839 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-21 01:29:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-21 01:29:09,852 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:09,853 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] [2020-07-21 01:29:09,854 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:09,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:09,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1917412719, now seen corresponding path program 1 times [2020-07-21 01:29:09,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:09,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1585059775] [2020-07-21 01:29:09,874 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 [2020-07-21 01:29:10,001 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:10,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:10,005 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:29:10,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:10,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:29:10,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:10,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1585059775] [2020-07-21 01:29:10,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:10,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:29:10,087 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758437055] [2020-07-21 01:29:10,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:29:10,093 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:10,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:29:10,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:29:10,110 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 3 states. [2020-07-21 01:29:11,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:11,293 INFO L93 Difference]: Finished difference Result 586 states and 1004 transitions. [2020-07-21 01:29:11,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:29:11,295 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-07-21 01:29:11,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:11,312 INFO L225 Difference]: With dead ends: 586 [2020-07-21 01:29:11,312 INFO L226 Difference]: Without dead ends: 294 [2020-07-21 01:29:11,319 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:29:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-07-21 01:29:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2020-07-21 01:29:11,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-07-21 01:29:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 446 transitions. [2020-07-21 01:29:11,399 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 446 transitions. Word has length 32 [2020-07-21 01:29:11,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:11,400 INFO L479 AbstractCegarLoop]: Abstraction has 294 states and 446 transitions. [2020-07-21 01:29:11,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:29:11,400 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 446 transitions. [2020-07-21 01:29:11,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-07-21 01:29:11,406 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:11,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:29:11,622 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:11,622 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:11,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:11,623 INFO L82 PathProgramCache]: Analyzing trace with hash 845536850, now seen corresponding path program 1 times [2020-07-21 01:29:11,624 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:11,624 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [316646987] [2020-07-21 01:29:11,625 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 [2020-07-21 01:29:11,714 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:11,715 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:11,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:29:11,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:11,756 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:29:11,756 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:11,757 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [316646987] [2020-07-21 01:29:11,757 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:11,757 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:29:11,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718917263] [2020-07-21 01:29:11,759 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:29:11,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:11,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:29:11,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:29:11,761 INFO L87 Difference]: Start difference. First operand 294 states and 446 transitions. Second operand 3 states. [2020-07-21 01:29:12,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:12,518 INFO L93 Difference]: Finished difference Result 868 states and 1337 transitions. [2020-07-21 01:29:12,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:29:12,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2020-07-21 01:29:12,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:12,527 INFO L225 Difference]: With dead ends: 868 [2020-07-21 01:29:12,528 INFO L226 Difference]: Without dead ends: 580 [2020-07-21 01:29:12,531 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:29:12,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2020-07-21 01:29:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2020-07-21 01:29:12,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 580 states. [2020-07-21 01:29:12,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 802 transitions. [2020-07-21 01:29:12,577 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 802 transitions. Word has length 102 [2020-07-21 01:29:12,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:12,578 INFO L479 AbstractCegarLoop]: Abstraction has 580 states and 802 transitions. [2020-07-21 01:29:12,578 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:29:12,579 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 802 transitions. [2020-07-21 01:29:12,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-07-21 01:29:12,581 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:12,581 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:29:12,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:12,795 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:12,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:12,796 INFO L82 PathProgramCache]: Analyzing trace with hash 1094831721, now seen corresponding path program 1 times [2020-07-21 01:29:12,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:12,798 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347712204] [2020-07-21 01:29:12,798 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 [2020-07-21 01:29:12,866 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:29:12,867 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:12,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:29:12,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:12,914 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:29:12,914 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:12,914 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347712204] [2020-07-21 01:29:12,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:12,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:29:12,915 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1266578038] [2020-07-21 01:29:12,916 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:29:12,916 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:12,916 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:29:12,917 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:29:12,917 INFO L87 Difference]: Start difference. First operand 580 states and 802 transitions. Second operand 5 states. [2020-07-21 01:29:13,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:13,968 INFO L93 Difference]: Finished difference Result 1470 states and 2115 transitions. [2020-07-21 01:29:13,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:29:13,969 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 113 [2020-07-21 01:29:13,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:13,984 INFO L225 Difference]: With dead ends: 1470 [2020-07-21 01:29:13,984 INFO L226 Difference]: Without dead ends: 896 [2020-07-21 01:29:13,986 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:29:13,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 896 states. [2020-07-21 01:29:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 896 to 886. [2020-07-21 01:29:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-07-21 01:29:14,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1170 transitions. [2020-07-21 01:29:14,028 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1170 transitions. Word has length 113 [2020-07-21 01:29:14,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:14,032 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1170 transitions. [2020-07-21 01:29:14,032 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:29:14,032 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1170 transitions. [2020-07-21 01:29:14,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-21 01:29:14,038 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:14,038 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:29:14,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:14,239 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:14,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:14,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1525370507, now seen corresponding path program 1 times [2020-07-21 01:29:14,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:14,242 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1804747818] [2020-07-21 01:29:14,242 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 [2020-07-21 01:29:14,351 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:14,351 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:14,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 01:29:14,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:14,432 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:29:14,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:14,433 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1804747818] [2020-07-21 01:29:14,433 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:14,433 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:29:14,434 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307932740] [2020-07-21 01:29:14,434 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:29:14,435 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:14,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:29:14,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:29:14,436 INFO L87 Difference]: Start difference. First operand 886 states and 1170 transitions. Second operand 5 states. [2020-07-21 01:29:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:15,573 INFO L93 Difference]: Finished difference Result 2233 states and 3103 transitions. [2020-07-21 01:29:15,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:29:15,574 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 123 [2020-07-21 01:29:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:15,585 INFO L225 Difference]: With dead ends: 2233 [2020-07-21 01:29:15,586 INFO L226 Difference]: Without dead ends: 1353 [2020-07-21 01:29:15,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 123 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:29:15,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1353 states. [2020-07-21 01:29:15,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1353 to 1327. [2020-07-21 01:29:15,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1327 states. [2020-07-21 01:29:15,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1327 states to 1327 states and 1744 transitions. [2020-07-21 01:29:15,642 INFO L78 Accepts]: Start accepts. Automaton has 1327 states and 1744 transitions. Word has length 123 [2020-07-21 01:29:15,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:15,643 INFO L479 AbstractCegarLoop]: Abstraction has 1327 states and 1744 transitions. [2020-07-21 01:29:15,643 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:29:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1327 states and 1744 transitions. [2020-07-21 01:29:15,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-21 01:29:15,646 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:15,646 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:29:15,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:15,862 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:15,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:15,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1593789539, now seen corresponding path program 1 times [2020-07-21 01:29:15,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:15,863 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [286578204] [2020-07-21 01:29:15,863 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 [2020-07-21 01:29:15,977 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:15,978 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:15,979 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:29:15,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:16,083 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:29:16,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:29:16,186 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 118 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:29:16,187 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [286578204] [2020-07-21 01:29:16,187 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:29:16,187 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:29:16,187 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333518852] [2020-07-21 01:29:16,188 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:29:16,189 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:16,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:29:16,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:29:16,190 INFO L87 Difference]: Start difference. First operand 1327 states and 1744 transitions. Second operand 7 states. [2020-07-21 01:29:17,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:17,544 INFO L93 Difference]: Finished difference Result 3246 states and 4284 transitions. [2020-07-21 01:29:17,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:29:17,544 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-07-21 01:29:17,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:17,558 INFO L225 Difference]: With dead ends: 3246 [2020-07-21 01:29:17,559 INFO L226 Difference]: Without dead ends: 1925 [2020-07-21 01:29:17,566 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 374 GetRequests, 363 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:29:17,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2020-07-21 01:29:17,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1921. [2020-07-21 01:29:17,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1921 states. [2020-07-21 01:29:17,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1921 states to 1921 states and 2361 transitions. [2020-07-21 01:29:17,632 INFO L78 Accepts]: Start accepts. Automaton has 1921 states and 2361 transitions. Word has length 184 [2020-07-21 01:29:17,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:17,633 INFO L479 AbstractCegarLoop]: Abstraction has 1921 states and 2361 transitions. [2020-07-21 01:29:17,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:29:17,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1921 states and 2361 transitions. [2020-07-21 01:29:17,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2020-07-21 01:29:17,644 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:17,644 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:29:17,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:17,858 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:17,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:17,859 INFO L82 PathProgramCache]: Analyzing trace with hash 383631829, now seen corresponding path program 1 times [2020-07-21 01:29:17,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:17,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568642754] [2020-07-21 01:29:17,860 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 [2020-07-21 01:29:17,989 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:29:17,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:17,990 INFO L263 TraceCheckSpWp]: Trace formula consists of 359 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 01:29:17,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:18,059 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-07-21 01:29:18,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:29:18,263 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2020-07-21 01:29:18,263 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568642754] [2020-07-21 01:29:18,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:29:18,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-21 01:29:18,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009131322] [2020-07-21 01:29:18,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-21 01:29:18,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:18,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-21 01:29:18,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:29:18,275 INFO L87 Difference]: Start difference. First operand 1921 states and 2361 transitions. Second operand 4 states. [2020-07-21 01:29:18,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:18,917 INFO L93 Difference]: Finished difference Result 3232 states and 3988 transitions. [2020-07-21 01:29:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-21 01:29:18,917 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 188 [2020-07-21 01:29:18,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:18,935 INFO L225 Difference]: With dead ends: 3232 [2020-07-21 01:29:18,936 INFO L226 Difference]: Without dead ends: 3230 [2020-07-21 01:29:18,942 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 375 GetRequests, 367 SyntacticMatches, 5 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:29:18,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3230 states. [2020-07-21 01:29:19,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3230 to 2223. [2020-07-21 01:29:19,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2223 states. [2020-07-21 01:29:19,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2223 states to 2223 states and 2746 transitions. [2020-07-21 01:29:19,023 INFO L78 Accepts]: Start accepts. Automaton has 2223 states and 2746 transitions. Word has length 188 [2020-07-21 01:29:19,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:19,024 INFO L479 AbstractCegarLoop]: Abstraction has 2223 states and 2746 transitions. [2020-07-21 01:29:19,024 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-21 01:29:19,024 INFO L276 IsEmpty]: Start isEmpty. Operand 2223 states and 2746 transitions. [2020-07-21 01:29:19,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-07-21 01:29:19,028 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:19,028 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:29:19,241 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:19,242 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:19,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:19,243 INFO L82 PathProgramCache]: Analyzing trace with hash -427970360, now seen corresponding path program 1 times [2020-07-21 01:29:19,243 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:19,243 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795039920] [2020-07-21 01:29:19,244 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 [2020-07-21 01:29:19,342 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:29:19,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:19,344 INFO L263 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 01:29:19,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:19,418 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 106 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 01:29:19,419 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:29:19,419 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795039920] [2020-07-21 01:29:19,419 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:29:19,420 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 01:29:19,420 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358453804] [2020-07-21 01:29:19,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:29:19,421 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:19,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:29:19,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 01:29:19,421 INFO L87 Difference]: Start difference. First operand 2223 states and 2746 transitions. Second operand 5 states. [2020-07-21 01:29:20,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:29:20,379 INFO L93 Difference]: Finished difference Result 4603 states and 5682 transitions. [2020-07-21 01:29:20,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:29:20,380 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2020-07-21 01:29:20,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:29:20,391 INFO L225 Difference]: With dead ends: 4603 [2020-07-21 01:29:20,391 INFO L226 Difference]: Without dead ends: 2386 [2020-07-21 01:29:20,397 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 202 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:29:20,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2386 states. [2020-07-21 01:29:20,441 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2386 to 1496. [2020-07-21 01:29:20,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-07-21 01:29:20,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1777 transitions. [2020-07-21 01:29:20,446 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1777 transitions. Word has length 201 [2020-07-21 01:29:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:29:20,447 INFO L479 AbstractCegarLoop]: Abstraction has 1496 states and 1777 transitions. [2020-07-21 01:29:20,447 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:29:20,447 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1777 transitions. [2020-07-21 01:29:20,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 281 [2020-07-21 01:29:20,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:29:20,453 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:29:20,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:29:20,668 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:29:20,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:29:20,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1743278634, now seen corresponding path program 1 times [2020-07-21 01:29:20,669 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:29:20,669 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1153170151] [2020-07-21 01:29:20,670 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 [2020-07-21 01:29:20,767 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:29:20,767 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:29:20,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 26 conjunts are in the unsatisfiable core [2020-07-21 01:29:20,773 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:29:20,817 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:29:20,819 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:29:42,733 WARN L193 SmtUtils]: Spent 21.86 s on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 01:29:42,796 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:29:43,079 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-21 01:29:43,080 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-07-21 01:29:43,086 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 01:29:43,460 INFO L134 CoverageAnalysis]: Checked inductivity of 315 backedges. 248 proven. 41 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 01:29:43,460 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:29:43,578 INFO L501 QuantifierPusher]: Distributing 5 disjuncts over 2 conjuncts [2020-07-21 01:29:43,958 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:29:43,959 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:29:43,960 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:29:43,962 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:29:43,962 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:29:43,963 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:29:43,964 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:29:43,966 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:29:48,833 WARN L193 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 37 DAG size of output: 20 [2020-07-21 01:29:48,835 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1153170151] [2020-07-21 01:29:48,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:29:48,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:29:48,836 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317119229] [2020-07-21 01:29:48,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:29:48,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:29:48,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:29:48,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:29:48,837 INFO L87 Difference]: Start difference. First operand 1496 states and 1777 transitions. Second operand 9 states. [2020-07-21 01:29:50,202 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-07-21 01:30:55,653 WARN L193 SmtUtils]: Spent 42.90 s on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2020-07-21 01:30:57,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:30:57,961 INFO L93 Difference]: Finished difference Result 4628 states and 5860 transitions. [2020-07-21 01:30:57,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-21 01:30:57,967 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 280 [2020-07-21 01:30:57,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:30:57,985 INFO L225 Difference]: With dead ends: 4628 [2020-07-21 01:30:57,985 INFO L226 Difference]: Without dead ends: 3254 [2020-07-21 01:30:57,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 463 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 73.2s TimeCoverageRelationStatistics Valid=145, Invalid=407, Unknown=0, NotChecked=0, Total=552 [2020-07-21 01:30:57,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3254 states. [2020-07-21 01:30:58,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3254 to 3159. [2020-07-21 01:30:58,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3159 states. [2020-07-21 01:30:58,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3159 states to 3159 states and 3889 transitions. [2020-07-21 01:30:58,087 INFO L78 Accepts]: Start accepts. Automaton has 3159 states and 3889 transitions. Word has length 280 [2020-07-21 01:30:58,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:30:58,088 INFO L479 AbstractCegarLoop]: Abstraction has 3159 states and 3889 transitions. [2020-07-21 01:30:58,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:30:58,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3159 states and 3889 transitions. [2020-07-21 01:30:58,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 317 [2020-07-21 01:30:58,100 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:30:58,100 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:30:58,314 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:30:58,315 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:30:58,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:30:58,315 INFO L82 PathProgramCache]: Analyzing trace with hash 887227954, now seen corresponding path program 1 times [2020-07-21 01:30:58,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:30:58,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1932599508] [2020-07-21 01:30:58,316 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 [2020-07-21 01:30:58,462 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:30:58,463 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:30:58,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 23 conjunts are in the unsatisfiable core [2020-07-21 01:30:58,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:30:58,531 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:30:58,533 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:58,539 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,543 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,548 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,549 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,550 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,553 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:58,554 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,561 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:58,562 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,563 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 01:30:58,564 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,566 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,569 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,572 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,574 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-21 01:30:58,576 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,577 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,580 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,584 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,589 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-21 01:30:58,590 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,591 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,596 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-21 01:30:58,602 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-07-21 01:31:20,283 WARN L193 SmtUtils]: Spent 21.59 s on a formula simplification. DAG size of input: 69 DAG size of output: 36 [2020-07-21 01:31:20,331 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-21 01:31:20,497 INFO L501 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-07-21 01:31:20,850 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 296 proven. 4 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2020-07-21 01:31:20,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:31:20,998 INFO L501 QuantifierPusher]: Distributing 4 disjuncts over 2 conjuncts [2020-07-21 01:31:21,321 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:21,322 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,322 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:31:21,323 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,324 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,325 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,326 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,327 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,328 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:31:21,330 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:21,330 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-07-21 01:31:21,331 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,332 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:31:21,333 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 3 conjuncts [2020-07-21 01:31:21,334 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:21,335 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,336 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:31:21,337 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,337 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,338 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,339 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,340 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,341 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:31:21,342 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,342 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-07-21 01:31:21,343 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,344 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,345 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:21,346 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:31:21,347 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-07-21 01:31:35,507 WARN L193 SmtUtils]: Spent 14.03 s on a formula simplification. DAG size of input: 67 DAG size of output: 20 [2020-07-21 01:31:35,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1932599508] [2020-07-21 01:31:35,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:31:35,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-07-21 01:31:35,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1709271814] [2020-07-21 01:31:35,509 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-21 01:31:35,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:31:35,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-21 01:31:35,510 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=139, Unknown=0, NotChecked=0, Total=182 [2020-07-21 01:31:35,510 INFO L87 Difference]: Start difference. First operand 3159 states and 3889 transitions. Second operand 9 states. [2020-07-21 01:31:41,669 WARN L193 SmtUtils]: Spent 4.97 s on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2020-07-21 01:33:50,345 WARN L193 SmtUtils]: Spent 39.02 s on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2020-07-21 01:33:55,793 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 54 DAG size of output: 36 [2020-07-21 01:34:01,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:01,526 INFO L93 Difference]: Finished difference Result 6523 states and 8233 transitions. [2020-07-21 01:34:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 01:34:01,531 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 316 [2020-07-21 01:34:01,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:01,552 INFO L225 Difference]: With dead ends: 6523 [2020-07-21 01:34:01,552 INFO L226 Difference]: Without dead ends: 3513 [2020-07-21 01:34:01,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 526 GetRequests, 499 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 83.4s TimeCoverageRelationStatistics Valid=223, Invalid=533, Unknown=0, NotChecked=0, Total=756 [2020-07-21 01:34:01,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3513 states. [2020-07-21 01:34:01,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3513 to 3467. [2020-07-21 01:34:01,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3467 states. [2020-07-21 01:34:01,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3467 states to 3467 states and 4232 transitions. [2020-07-21 01:34:01,670 INFO L78 Accepts]: Start accepts. Automaton has 3467 states and 4232 transitions. Word has length 316 [2020-07-21 01:34:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:01,671 INFO L479 AbstractCegarLoop]: Abstraction has 3467 states and 4232 transitions. [2020-07-21 01:34:01,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-21 01:34:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 3467 states and 4232 transitions. [2020-07-21 01:34:01,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-21 01:34:01,683 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:01,684 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:34:01,896 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:01,898 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1615984581, now seen corresponding path program 1 times [2020-07-21 01:34:01,899 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:01,899 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [422686563] [2020-07-21 01:34:01,900 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 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:02,410 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:02,410 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:02,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 543 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:02,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:02,519 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 01:34:02,520 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:34:02,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [422686563] [2020-07-21 01:34:02,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:34:02,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:34:02,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1956769768] [2020-07-21 01:34:02,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:34:02,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:02,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:34:02,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:02,523 INFO L87 Difference]: Start difference. First operand 3467 states and 4232 transitions. Second operand 3 states. [2020-07-21 01:34:04,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:04,912 INFO L93 Difference]: Finished difference Result 6783 states and 8309 transitions. [2020-07-21 01:34:04,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:34:04,917 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 335 [2020-07-21 01:34:04,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:04,936 INFO L225 Difference]: With dead ends: 6783 [2020-07-21 01:34:04,937 INFO L226 Difference]: Without dead ends: 3465 [2020-07-21 01:34:04,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 333 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3465 states. [2020-07-21 01:34:05,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3465 to 3320. [2020-07-21 01:34:05,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3320 states. [2020-07-21 01:34:05,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3320 states to 3320 states and 3979 transitions. [2020-07-21 01:34:05,063 INFO L78 Accepts]: Start accepts. Automaton has 3320 states and 3979 transitions. Word has length 335 [2020-07-21 01:34:05,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:05,064 INFO L479 AbstractCegarLoop]: Abstraction has 3320 states and 3979 transitions. [2020-07-21 01:34:05,064 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:34:05,064 INFO L276 IsEmpty]: Start isEmpty. Operand 3320 states and 3979 transitions. [2020-07-21 01:34:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2020-07-21 01:34:05,080 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:34:05,080 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:34:05,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:05,284 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:34:05,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:34:05,285 INFO L82 PathProgramCache]: Analyzing trace with hash 664351230, now seen corresponding path program 1 times [2020-07-21 01:34:05,285 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:34:05,286 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [682747255] [2020-07-21 01:34:05,286 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 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:05,594 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:34:05,594 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:34:05,598 INFO L263 TraceCheckSpWp]: Trace formula consists of 571 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:34:05,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:34:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2020-07-21 01:34:05,715 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:34:05,715 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [682747255] [2020-07-21 01:34:05,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:34:05,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:34:05,716 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511337466] [2020-07-21 01:34:05,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:34:05,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:34:05,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:34:05,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:05,721 INFO L87 Difference]: Start difference. First operand 3320 states and 3979 transitions. Second operand 3 states. [2020-07-21 01:34:08,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:34:08,145 INFO L93 Difference]: Finished difference Result 6036 states and 7207 transitions. [2020-07-21 01:34:08,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:34:08,149 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 358 [2020-07-21 01:34:08,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:34:08,150 INFO L225 Difference]: With dead ends: 6036 [2020-07-21 01:34:08,151 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:34:08,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 357 GetRequests, 356 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:34:08,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:34:08,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:34:08,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:34:08,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:34:08,165 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 358 [2020-07-21 01:34:08,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:34:08,165 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:34:08,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:34:08,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:34:08,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:34:08,380 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:34:08,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:34:09,348 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 159 [2020-07-21 01:34:09,545 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 159 [2020-07-21 01:34:09,881 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:34:13,396 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 210 DAG size of output: 55 [2020-07-21 01:34:13,538 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 19 DAG size of output: 14 [2020-07-21 01:34:15,021 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 165 DAG size of output: 39 [2020-07-21 01:34:16,440 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 165 DAG size of output: 39 [2020-07-21 01:34:16,445 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:16,445 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a10~0 |old(~a10~0)|) (<= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|) (or (<= 9 ~a19~0) (< |old(~a19~0)| 9))) [2020-07-21 01:34:16,445 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-21 01:34:16,446 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-21 01:34:16,447 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-21 01:34:16,447 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-21 01:34:16,447 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-21 01:34:16,447 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-21 01:34:16,447 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-21 01:34:16,447 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-21 01:34:16,448 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-21 01:34:16,448 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,448 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,448 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,448 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-21 01:34:16,449 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 82) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,450 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-21 01:34:16,451 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-21 01:34:16,452 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-21 01:34:16,453 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,454 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-21 01:34:16,455 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-21 01:34:16,456 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-21 01:34:16,457 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-21 01:34:16,458 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-21 01:34:16,459 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,460 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-21 01:34:16,461 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse7 (= ~a10~0 |old(~a10~0)|)) (.cse5 (= ~a19~0 |old(~a19~0)|)) (.cse9 (= ~a1~0 |old(~a1~0)|))) (let ((.cse1 (not (<= 1 |old(~a10~0)|))) (.cse0 (not (<= 23 |old(~a1~0)|))) (.cse10 (not (<= |old(~a19~0)| 9))) (.cse11 (and .cse7 .cse5 .cse9)) (.cse2 (not (<= 9 |old(~a19~0)|))) (.cse3 (not (= 0 ~a12~0))) (.cse4 (not (= 14 ~a4~0))) (.cse6 (not (<= |old(~a10~0)| 2))) (.cse8 (<= ~a19~0 |old(~a19~0)|))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (or (not (<= |old(~a19~0)| 6)) .cse3 .cse4 (and .cse7 .cse8 .cse9)) (or .cse1 .cse3 .cse4 (and (<= ~a10~0 |old(~a10~0)|) (<= 1 ~a10~0) .cse8 .cse9) .cse6) (or .cse0 .cse3 .cse4 .cse10 .cse11) (or .cse3 .cse4 .cse10 .cse11 (not (<= 2 |old(~a10~0)|))) (or .cse2 .cse3 .cse4 .cse6 (and (<= 9 ~a19~0) .cse7 .cse8 .cse9))))) [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-21 01:34:16,462 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-21 01:34:16,463 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-21 01:34:16,464 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-21 01:34:16,465 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:34:16,466 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (= 14 ~a4~0) (<= ~a19~0 9) (<= 9 ~a19~0) (= 0 ~a12~0) (= 23 ~a1~0)) [2020-07-21 01:34:16,467 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:34:16,467 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:34:16,467 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (= 0 ~a12~0)) (not (<= 9 |old(~a19~0)|)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|))) [2020-07-21 01:34:16,467 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:34:16,467 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a10~0 2))) (or (and .cse0 (<= 23 ~a1~0)) (and (<= 1 ~a10~0) .cse1) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (and .cse0 (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) .cse1))) [2020-07-21 01:34:16,467 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-21 01:34:16,467 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-21 01:34:16,467 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9)) (.cse1 (<= ~a10~0 2))) (or (and .cse0 (<= 23 ~a1~0)) (and (<= 1 ~a10~0) .cse1) (<= ~a19~0 6) (not (<= |old(~a10~0)| 0)) (not (= 23 |old(~a1~0)|)) (not (<= 9 |old(~a19~0)|)) (not (= 0 ~a12~0)) (not (= 14 ~a4~0)) (and .cse0 (<= 2 ~a10~0)) (not (<= |old(~a19~0)| 9)) (and (<= 9 ~a19~0) .cse1))) [2020-07-21 01:34:16,468 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-21 01:34:16,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:34:16 BoogieIcfgContainer [2020-07-21 01:34:16,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:34:16,491 INFO L168 Benchmark]: Toolchain (without parser) took 309109.52 ms. Allocated memory was 138.4 MB in the beginning and 388.5 MB in the end (delta: 250.1 MB). Free memory was 100.9 MB in the beginning and 183.5 MB in the end (delta: -82.5 MB). Peak memory consumption was 306.5 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:16,492 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-21 01:34:16,492 INFO L168 Benchmark]: CACSL2BoogieTranslator took 774.58 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.5 MB in the beginning and 172.2 MB in the end (delta: -71.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:16,493 INFO L168 Benchmark]: Boogie Preprocessor took 108.39 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:16,494 INFO L168 Benchmark]: RCFGBuilder took 1441.23 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.2 MB in the beginning and 183.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:16,495 INFO L168 Benchmark]: TraceAbstraction took 306779.70 ms. Allocated memory was 238.0 MB in the beginning and 388.5 MB in the end (delta: 150.5 MB). Free memory was 183.5 MB in the beginning and 183.5 MB in the end (delta: 30.0 kB). Peak memory consumption was 289.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:34:16,503 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 138.4 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 774.58 ms. Allocated memory was 138.4 MB in the beginning and 205.5 MB in the end (delta: 67.1 MB). Free memory was 100.5 MB in the beginning and 172.2 MB in the end (delta: -71.7 MB). Peak memory consumption was 35.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 108.39 ms. Allocated memory is still 205.5 MB. Free memory was 172.2 MB in the beginning and 167.2 MB in the end (delta: 5.0 MB). Peak memory consumption was 5.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1441.23 ms. Allocated memory was 205.5 MB in the beginning and 238.0 MB in the end (delta: 32.5 MB). Free memory was 167.2 MB in the beginning and 183.5 MB in the end (delta: -16.3 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 306779.70 ms. Allocated memory was 238.0 MB in the beginning and 388.5 MB in the end (delta: 150.5 MB). Free memory was 183.5 MB in the beginning and 183.5 MB in the end (delta: 30.0 kB). Peak memory consumption was 289.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: 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: ((((((((((a19 <= 9 && 23 <= a1) || (1 <= a10 && a10 <= 2)) || a19 <= 6) || !(\old(a10) <= 0)) || !(23 == \old(a1))) || !(9 <= \old(a19))) || !(0 == a12)) || !(14 == a4)) || (a19 <= 9 && 2 <= a10)) || !(\old(a19) <= 9)) || (9 <= a19 && a10 <= 2) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 298.5s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 227.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 8.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 834 SDtfs, 3641 SDslu, 383 SDs, 0 SdLazy, 8224 SolverSat, 1410 SolverUnsat, 45 SolverUnknown, 0 SolverNotchecked, 124.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3024 GetRequests, 2936 SyntacticMatches, 8 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 214 ImplicationChecksByTransitivity, 157.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3467occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 11 MinimizatonAttempts, 2223 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 151 PreInvPairs, 213 NumberOfFragments, 350 HoareAnnotationTreeSize, 151 FomulaSimplifications, 11040 FormulaSimplificationTreeSizeReduction, 1.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 8669 FormulaSimplificationTreeSizeReductionInter, 6.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 66.1s InterpolantComputationTime, 2232 NumberOfCodeBlocks, 1888 NumberOfCodeBlocksAsserted, 38 NumberOfCheckSat, 2591 ConstructedInterpolants, 12 QuantifiedInterpolants, 2626394 SizeOfPredicates, 29 NumberOfNonLiveVariables, 3556 ConjunctsInSsa, 104 ConjunctsInUnsatCore, 13 InterpolantComputations, 8 PerfectInterpolantSequences, 1921/2014 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...