/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 01:39:27,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 01:39:27,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 01:39:27,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 01:39:27,178 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 01:39:27,179 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 01:39:27,180 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 01:39:27,182 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 01:39:27,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 01:39:27,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 01:39:27,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 01:39:27,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 01:39:27,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 01:39:27,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 01:39:27,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 01:39:27,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 01:39:27,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 01:39:27,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 01:39:27,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 01:39:27,194 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 01:39:27,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 01:39:27,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 01:39:27,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 01:39:27,199 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 01:39:27,201 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 01:39:27,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 01:39:27,208 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 01:39:27,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 01:39:27,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 01:39:27,224 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 01:39:27,224 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 01:39:27,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 01:39:27,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 01:39:27,226 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 01:39:27,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 01:39:27,226 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 01:39:27,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 01:39:27,227 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 01:39:27,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 01:39:27,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 01:39:27,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 01:39:27,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 01:39:27,228 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 01:39:27,228 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 01:39:27,228 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 01:39:27,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 01:39:27,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 01:39:27,229 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 01:39:27,229 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 01:39:27,229 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 01:39:27,229 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:39:27,229 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 01:39:27,230 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 01:39:27,230 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 01:39:27,230 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 01:39:27,230 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 01:39:27,230 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 01:39:27,231 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 01:39:27,231 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES 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 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 01:39:27,550 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 01:39:27,563 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 01:39:27,566 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 01:39:27,567 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 01:39:27,567 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 01:39:27,568 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-07-20 01:39:27,628 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c649ebc0/b0b7837ebbfe410c995df95a08435010/FLAGade31a3a0 [2020-07-20 01:39:28,109 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 01:39:28,110 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-07-20 01:39:28,121 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c649ebc0/b0b7837ebbfe410c995df95a08435010/FLAGade31a3a0 [2020-07-20 01:39:28,452 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c649ebc0/b0b7837ebbfe410c995df95a08435010 [2020-07-20 01:39:28,462 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 01:39:28,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 01:39:28,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 01:39:28,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 01:39:28,469 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 01:39:28,470 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:39:28" (1/1) ... [2020-07-20 01:39:28,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33761369 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:28, skipping insertion in model container [2020-07-20 01:39:28,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 01:39:28" (1/1) ... [2020-07-20 01:39:28,481 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 01:39:28,525 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 01:39:29,101 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:39:29,105 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 01:39:29,193 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 01:39:29,215 INFO L208 MainTranslator]: Completed translation [2020-07-20 01:39:29,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29 WrapperNode [2020-07-20 01:39:29,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 01:39:29,217 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 01:39:29,217 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 01:39:29,217 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 01:39:29,230 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,230 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,249 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,250 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,286 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... [2020-07-20 01:39:29,328 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 01:39:29,328 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 01:39:29,328 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 01:39:29,329 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 01:39:29,331 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 01:39:29,406 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 01:39:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 01:39:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 01:39:29,407 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 01:39:29,407 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 01:39:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 01:39:29,408 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 01:39:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 01:39:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 01:39:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 01:39:29,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 01:39:30,615 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 01:39:30,615 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 01:39:30,622 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:39:30 BoogieIcfgContainer [2020-07-20 01:39:30,622 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 01:39:30,623 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 01:39:30,623 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 01:39:30,626 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 01:39:30,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 01:39:28" (1/3) ... [2020-07-20 01:39:30,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5098ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:39:30, skipping insertion in model container [2020-07-20 01:39:30,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 01:39:29" (2/3) ... [2020-07-20 01:39:30,628 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d5098ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 01:39:30, skipping insertion in model container [2020-07-20 01:39:30,628 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 01:39:30" (3/3) ... [2020-07-20 01:39:30,630 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-07-20 01:39:30,641 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 01:39:30,649 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 01:39:30,662 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 01:39:30,689 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 01:39:30,689 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 01:39:30,690 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 01:39:30,690 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 01:39:30,690 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 01:39:30,690 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 01:39:30,691 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 01:39:30,691 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 01:39:30,713 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-07-20 01:39:30,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-20 01:39:30,721 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:39:30,722 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:39:30,722 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:39:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:39:30,729 INFO L82 PathProgramCache]: Analyzing trace with hash 312365279, now seen corresponding path program 1 times [2020-07-20 01:39:30,738 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:39:30,739 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37394959] [2020-07-20 01:39:30,739 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:39:30,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:31,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:31,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:39:31,131 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37394959] [2020-07-20 01:39:31,132 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:39:31,133 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 01:39:31,134 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219520543] [2020-07-20 01:39:31,142 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:39:31,142 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:39:31,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:39:31,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 01:39:31,166 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-07-20 01:39:33,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:39:33,210 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-07-20 01:39:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 01:39:33,212 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 44 [2020-07-20 01:39:33,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:39:33,238 INFO L225 Difference]: With dead ends: 730 [2020-07-20 01:39:33,238 INFO L226 Difference]: Without dead ends: 447 [2020-07-20 01:39:33,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 01:39:33,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-07-20 01:39:33,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-07-20 01:39:33,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-07-20 01:39:33,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-07-20 01:39:33,334 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 44 [2020-07-20 01:39:33,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:39:33,334 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-07-20 01:39:33,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:39:33,335 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-07-20 01:39:33,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-07-20 01:39:33,340 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:39:33,341 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:39:33,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 01:39:33,341 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:39:33,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:39:33,342 INFO L82 PathProgramCache]: Analyzing trace with hash -28440279, now seen corresponding path program 1 times [2020-07-20 01:39:33,342 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:39:33,342 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714744060] [2020-07-20 01:39:33,343 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:39:33,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:33,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:33,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:33,656 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:39:33,657 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714744060] [2020-07-20 01:39:33,657 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:39:33,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 01:39:33,658 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144835170] [2020-07-20 01:39:33,659 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 01:39:33,660 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:39:33,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 01:39:33,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:39:33,661 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-07-20 01:39:35,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:39:35,136 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-07-20 01:39:35,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 01:39:35,137 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-07-20 01:39:35,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:39:35,142 INFO L225 Difference]: With dead ends: 1041 [2020-07-20 01:39:35,142 INFO L226 Difference]: Without dead ends: 606 [2020-07-20 01:39:35,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-07-20 01:39:35,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-07-20 01:39:35,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-07-20 01:39:35,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-07-20 01:39:35,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-07-20 01:39:35,211 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 117 [2020-07-20 01:39:35,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:39:35,212 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-07-20 01:39:35,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 01:39:35,212 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-07-20 01:39:35,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-07-20 01:39:35,217 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:39:35,217 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:39:35,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 01:39:35,218 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:39:35,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:39:35,218 INFO L82 PathProgramCache]: Analyzing trace with hash -681057027, now seen corresponding path program 1 times [2020-07-20 01:39:35,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:39:35,219 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500451669] [2020-07-20 01:39:35,219 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:39:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:35,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:35,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:39:35,663 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 20 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:39:35,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500451669] [2020-07-20 01:39:35,664 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813706694] [2020-07-20 01:39:35,664 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d763c6e No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:39:35,780 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@d763c6e issued 4 check-sat command(s) [2020-07-20 01:39:35,780 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:39:35,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-20 01:39:35,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:39:35,861 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:39:35,862 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 01:39:39,986 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 25 [2020-07-20 01:39:40,043 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 01:39:40,208 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 3 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:39:40,209 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:39:40,209 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 12 [2020-07-20 01:39:40,209 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297144973] [2020-07-20 01:39:40,210 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 01:39:40,210 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:39:40,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 01:39:40,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=99, Unknown=1, NotChecked=0, Total=132 [2020-07-20 01:39:40,211 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 12 states. [2020-07-20 01:40:03,133 WARN L193 SmtUtils]: Spent 16.61 s on a formula simplification. DAG size of input: 44 DAG size of output: 40 [2020-07-20 01:40:20,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:40:20,207 INFO L93 Difference]: Finished difference Result 2312 states and 3644 transitions. [2020-07-20 01:40:20,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-20 01:40:20,209 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 123 [2020-07-20 01:40:20,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:40:20,232 INFO L225 Difference]: With dead ends: 2312 [2020-07-20 01:40:20,232 INFO L226 Difference]: Without dead ends: 1699 [2020-07-20 01:40:20,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 21.4s TimeCoverageRelationStatistics Valid=139, Invalid=366, Unknown=1, NotChecked=0, Total=506 [2020-07-20 01:40:20,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1699 states. [2020-07-20 01:40:20,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1699 to 1488. [2020-07-20 01:40:20,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2020-07-20 01:40:20,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 2085 transitions. [2020-07-20 01:40:20,361 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 2085 transitions. Word has length 123 [2020-07-20 01:40:20,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:40:20,362 INFO L479 AbstractCegarLoop]: Abstraction has 1488 states and 2085 transitions. [2020-07-20 01:40:20,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 01:40:20,362 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 2085 transitions. [2020-07-20 01:40:20,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-20 01:40:20,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:40:20,372 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:40:20,587 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-20 01:40:20,587 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:40:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:40:20,587 INFO L82 PathProgramCache]: Analyzing trace with hash 2020890394, now seen corresponding path program 1 times [2020-07-20 01:40:20,588 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:40:20,588 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [179576174] [2020-07-20 01:40:20,588 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:40:20,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:20,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:20,808 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:40:20,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [179576174] [2020-07-20 01:40:20,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:40:20,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-20 01:40:20,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453004429] [2020-07-20 01:40:20,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 01:40:20,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:40:20,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 01:40:20,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-20 01:40:20,814 INFO L87 Difference]: Start difference. First operand 1488 states and 2085 transitions. Second operand 7 states. [2020-07-20 01:40:22,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:40:23,000 INFO L93 Difference]: Finished difference Result 3572 states and 5130 transitions. [2020-07-20 01:40:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 01:40:23,005 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 134 [2020-07-20 01:40:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:40:23,019 INFO L225 Difference]: With dead ends: 3572 [2020-07-20 01:40:23,019 INFO L226 Difference]: Without dead ends: 2090 [2020-07-20 01:40:23,024 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:40:23,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2090 states. [2020-07-20 01:40:23,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2090 to 1649. [2020-07-20 01:40:23,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1649 states. [2020-07-20 01:40:23,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1649 states to 1649 states and 2346 transitions. [2020-07-20 01:40:23,097 INFO L78 Accepts]: Start accepts. Automaton has 1649 states and 2346 transitions. Word has length 134 [2020-07-20 01:40:23,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:40:23,099 INFO L479 AbstractCegarLoop]: Abstraction has 1649 states and 2346 transitions. [2020-07-20 01:40:23,099 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 01:40:23,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1649 states and 2346 transitions. [2020-07-20 01:40:23,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-07-20 01:40:23,101 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:40:23,102 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:40:23,103 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 01:40:23,104 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:40:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:40:23,104 INFO L82 PathProgramCache]: Analyzing trace with hash -211665010, now seen corresponding path program 1 times [2020-07-20 01:40:23,104 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:40:23,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057240925] [2020-07-20 01:40:23,105 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:40:23,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:23,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:23,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:40:23,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057240925] [2020-07-20 01:40:23,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 01:40:23,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 01:40:23,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1083096888] [2020-07-20 01:40:23,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 01:40:23,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:40:23,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 01:40:23,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:40:23,356 INFO L87 Difference]: Start difference. First operand 1649 states and 2346 transitions. Second operand 8 states. [2020-07-20 01:40:26,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:40:26,054 INFO L93 Difference]: Finished difference Result 4768 states and 7019 transitions. [2020-07-20 01:40:26,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-20 01:40:26,058 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 156 [2020-07-20 01:40:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:40:26,079 INFO L225 Difference]: With dead ends: 4768 [2020-07-20 01:40:26,080 INFO L226 Difference]: Without dead ends: 3268 [2020-07-20 01:40:26,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-07-20 01:40:26,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3268 states. [2020-07-20 01:40:26,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3268 to 2678. [2020-07-20 01:40:26,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2678 states. [2020-07-20 01:40:26,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2678 states to 2678 states and 3667 transitions. [2020-07-20 01:40:26,176 INFO L78 Accepts]: Start accepts. Automaton has 2678 states and 3667 transitions. Word has length 156 [2020-07-20 01:40:26,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:40:26,176 INFO L479 AbstractCegarLoop]: Abstraction has 2678 states and 3667 transitions. [2020-07-20 01:40:26,176 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 01:40:26,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2678 states and 3667 transitions. [2020-07-20 01:40:26,181 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 194 [2020-07-20 01:40:26,181 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:40:26,181 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-20 01:40:26,182 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 01:40:26,182 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:40:26,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:40:26,183 INFO L82 PathProgramCache]: Analyzing trace with hash -1538101510, now seen corresponding path program 1 times [2020-07-20 01:40:26,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:40:26,184 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078335977] [2020-07-20 01:40:26,184 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:40:26,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:26,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:26,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:26,577 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 138 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-20 01:40:26,579 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078335977] [2020-07-20 01:40:26,580 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1958351970] [2020-07-20 01:40:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9c17d47 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:40:26,759 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@9c17d47 issued 4 check-sat command(s) [2020-07-20 01:40:26,759 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:40:26,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:40:26,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:40:26,906 INFO L134 CoverageAnalysis]: Checked inductivity of 144 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:40:26,907 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:40:26,907 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5] total 12 [2020-07-20 01:40:26,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919887492] [2020-07-20 01:40:26,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-20 01:40:26,909 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:40:26,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-20 01:40:26,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-07-20 01:40:26,910 INFO L87 Difference]: Start difference. First operand 2678 states and 3667 transitions. Second operand 12 states. [2020-07-20 01:40:32,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:40:32,117 INFO L93 Difference]: Finished difference Result 6699 states and 9403 transitions. [2020-07-20 01:40:32,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-20 01:40:32,119 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 193 [2020-07-20 01:40:32,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:40:32,141 INFO L225 Difference]: With dead ends: 6699 [2020-07-20 01:40:32,141 INFO L226 Difference]: Without dead ends: 4027 [2020-07-20 01:40:32,149 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 233 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=195, Invalid=675, Unknown=0, NotChecked=0, Total=870 [2020-07-20 01:40:32,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4027 states. [2020-07-20 01:40:32,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4027 to 3135. [2020-07-20 01:40:32,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3135 states. [2020-07-20 01:40:32,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3135 states to 3135 states and 4058 transitions. [2020-07-20 01:40:32,243 INFO L78 Accepts]: Start accepts. Automaton has 3135 states and 4058 transitions. Word has length 193 [2020-07-20 01:40:32,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:40:32,244 INFO L479 AbstractCegarLoop]: Abstraction has 3135 states and 4058 transitions. [2020-07-20 01:40:32,244 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-20 01:40:32,244 INFO L276 IsEmpty]: Start isEmpty. Operand 3135 states and 4058 transitions. [2020-07-20 01:40:32,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 280 [2020-07-20 01:40:32,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:40:32,252 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:40:32,465 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:40:32,466 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:40:32,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:40:32,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1367628375, now seen corresponding path program 1 times [2020-07-20 01:40:32,468 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:40:32,468 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801567557] [2020-07-20 01:40:32,469 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:40:32,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:32,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:32,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:40:33,160 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 119 proven. 204 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 01:40:33,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801567557] [2020-07-20 01:40:33,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [821220145] [2020-07-20 01:40:33,161 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@461a78fa No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:40:33,300 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@461a78fa issued 4 check-sat command(s) [2020-07-20 01:40:33,300 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:40:33,301 INFO L263 TraceCheckSpWp]: Trace formula consists of 490 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 01:40:33,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:40:33,358 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 3, 3, 1] term [2020-07-20 01:40:33,359 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 01:40:33,361 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:40:33,361 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-07-20 01:40:33,362 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 01:40:33,364 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 01:40:33,365 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 01:40:33,366 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 4 disjuncts [2020-07-20 01:40:54,623 WARN L193 SmtUtils]: Spent 21.19 s on a formula simplification. DAG size of input: 57 DAG size of output: 38 [2020-07-20 01:40:54,696 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 01:40:54,789 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:40:54,950 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 247 proven. 83 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 01:40:54,951 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:40:54,951 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8] total 16 [2020-07-20 01:40:54,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082646467] [2020-07-20 01:40:54,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-20 01:40:54,953 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:40:54,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-20 01:40:54,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=198, Unknown=0, NotChecked=0, Total=240 [2020-07-20 01:40:54,954 INFO L87 Difference]: Start difference. First operand 3135 states and 4058 transitions. Second operand 16 states. [2020-07-20 01:41:28,613 WARN L193 SmtUtils]: Spent 27.67 s on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2020-07-20 01:41:36,914 WARN L193 SmtUtils]: Spent 6.13 s on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2020-07-20 01:42:07,956 WARN L193 SmtUtils]: Spent 30.75 s on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-07-20 01:42:26,472 WARN L193 SmtUtils]: Spent 16.12 s on a formula simplification that was a NOOP. DAG size: 49 [2020-07-20 01:42:58,785 WARN L193 SmtUtils]: Spent 32.20 s on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2020-07-20 01:43:17,506 WARN L193 SmtUtils]: Spent 16.09 s on a formula simplification that was a NOOP. DAG size: 44 [2020-07-20 01:43:52,195 WARN L193 SmtUtils]: Spent 32.25 s on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2020-07-20 01:44:06,550 WARN L193 SmtUtils]: Spent 10.10 s on a formula simplification. DAG size of input: 42 DAG size of output: 33 [2020-07-20 01:44:39,246 WARN L193 SmtUtils]: Spent 32.18 s on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2020-07-20 01:44:55,690 WARN L193 SmtUtils]: Spent 16.09 s on a formula simplification that was a NOOP. DAG size: 48 [2020-07-20 01:45:12,196 WARN L193 SmtUtils]: Spent 16.18 s on a formula simplification that was a NOOP. DAG size: 72 [2020-07-20 01:45:28,540 WARN L193 SmtUtils]: Spent 16.09 s on a formula simplification that was a NOOP. DAG size: 41 [2020-07-20 01:46:03,316 WARN L193 SmtUtils]: Spent 32.16 s on a formula simplification. DAG size of input: 46 DAG size of output: 37 [2020-07-20 01:46:36,009 WARN L193 SmtUtils]: Spent 32.18 s on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2020-07-20 01:47:12,025 WARN L193 SmtUtils]: Spent 32.15 s on a formula simplification. DAG size of input: 44 DAG size of output: 34 [2020-07-20 01:47:17,236 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 47 [2020-07-20 01:47:33,474 WARN L193 SmtUtils]: Spent 16.10 s on a formula simplification that was a NOOP. DAG size: 47 [2020-07-20 01:48:06,536 WARN L193 SmtUtils]: Spent 32.16 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2020-07-20 01:48:10,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:48:10,114 INFO L93 Difference]: Finished difference Result 7414 states and 10277 transitions. [2020-07-20 01:48:10,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2020-07-20 01:48:10,116 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 279 [2020-07-20 01:48:10,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:48:10,145 INFO L225 Difference]: With dead ends: 7414 [2020-07-20 01:48:10,145 INFO L226 Difference]: Without dead ends: 4285 [2020-07-20 01:48:10,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 446 GetRequests, 354 SyntacticMatches, 1 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2920 ImplicationChecksByTransitivity, 426.3s TimeCoverageRelationStatistics Valid=1114, Invalid=7440, Unknown=2, NotChecked=0, Total=8556 [2020-07-20 01:48:10,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4285 states. [2020-07-20 01:48:10,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4285 to 3912. [2020-07-20 01:48:10,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3912 states. [2020-07-20 01:48:10,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3912 states to 3912 states and 4514 transitions. [2020-07-20 01:48:10,300 INFO L78 Accepts]: Start accepts. Automaton has 3912 states and 4514 transitions. Word has length 279 [2020-07-20 01:48:10,300 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:48:10,300 INFO L479 AbstractCegarLoop]: Abstraction has 3912 states and 4514 transitions. [2020-07-20 01:48:10,300 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-20 01:48:10,301 INFO L276 IsEmpty]: Start isEmpty. Operand 3912 states and 4514 transitions. [2020-07-20 01:48:10,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 287 [2020-07-20 01:48:10,310 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:48:10,311 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:48:10,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:48:10,526 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:48:10,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:48:10,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1813331928, now seen corresponding path program 1 times [2020-07-20 01:48:10,527 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:48:10,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475982920] [2020-07-20 01:48:10,528 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:48:10,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:10,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:10,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:10,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:10,948 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 111 proven. 144 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2020-07-20 01:48:10,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475982920] [2020-07-20 01:48:10,949 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721248853] [2020-07-20 01:48:10,949 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2fd52e7a No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:48:11,146 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@2fd52e7a issued 4 check-sat command(s) [2020-07-20 01:48:11,147 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:48:11,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 01:48:11,156 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:48:11,205 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 01:48:11,279 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-07-20 01:48:11,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 01:48:11,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 8 [2020-07-20 01:48:11,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263915177] [2020-07-20 01:48:11,283 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 01:48:11,284 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:48:11,284 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 01:48:11,284 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-20 01:48:11,284 INFO L87 Difference]: Start difference. First operand 3912 states and 4514 transitions. Second operand 5 states. [2020-07-20 01:48:13,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:48:13,348 INFO L93 Difference]: Finished difference Result 7695 states and 8888 transitions. [2020-07-20 01:48:13,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 01:48:13,355 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 286 [2020-07-20 01:48:13,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:48:13,373 INFO L225 Difference]: With dead ends: 7695 [2020-07-20 01:48:13,374 INFO L226 Difference]: Without dead ends: 3932 [2020-07-20 01:48:13,386 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 290 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-20 01:48:13,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3932 states. [2020-07-20 01:48:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3932 to 3914. [2020-07-20 01:48:13,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3914 states. [2020-07-20 01:48:13,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3914 states to 3914 states and 4509 transitions. [2020-07-20 01:48:13,536 INFO L78 Accepts]: Start accepts. Automaton has 3914 states and 4509 transitions. Word has length 286 [2020-07-20 01:48:13,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:48:13,536 INFO L479 AbstractCegarLoop]: Abstraction has 3914 states and 4509 transitions. [2020-07-20 01:48:13,536 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 01:48:13,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3914 states and 4509 transitions. [2020-07-20 01:48:13,546 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-07-20 01:48:13,546 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:48:13,547 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:48:13,761 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:48:13,762 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:48:13,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:48:13,762 INFO L82 PathProgramCache]: Analyzing trace with hash 2082826957, now seen corresponding path program 1 times [2020-07-20 01:48:13,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:48:13,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726383112] [2020-07-20 01:48:13,763 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:48:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:13,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:13,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:14,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:14,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:14,192 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 265 proven. 8 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-07-20 01:48:14,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726383112] [2020-07-20 01:48:14,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [217918047] [2020-07-20 01:48:14,193 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@44f1195c No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:48:14,360 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@44f1195c issued 4 check-sat command(s) [2020-07-20 01:48:14,361 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:48:14,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 01:48:14,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:48:14,536 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 270 proven. 2 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-07-20 01:48:14,537 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:48:14,537 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-07-20 01:48:14,537 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352197300] [2020-07-20 01:48:14,538 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-20 01:48:14,538 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:48:14,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-20 01:48:14,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-07-20 01:48:14,539 INFO L87 Difference]: Start difference. First operand 3914 states and 4509 transitions. Second operand 11 states. [2020-07-20 01:48:19,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:48:19,818 INFO L93 Difference]: Finished difference Result 9693 states and 11225 transitions. [2020-07-20 01:48:19,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-20 01:48:19,819 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 341 [2020-07-20 01:48:19,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:48:19,835 INFO L225 Difference]: With dead ends: 9693 [2020-07-20 01:48:19,835 INFO L226 Difference]: Without dead ends: 3415 [2020-07-20 01:48:19,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 372 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=94, Invalid=286, Unknown=0, NotChecked=0, Total=380 [2020-07-20 01:48:19,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3415 states. [2020-07-20 01:48:19,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3415 to 2686. [2020-07-20 01:48:19,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2686 states. [2020-07-20 01:48:19,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2686 states to 2686 states and 2890 transitions. [2020-07-20 01:48:19,915 INFO L78 Accepts]: Start accepts. Automaton has 2686 states and 2890 transitions. Word has length 341 [2020-07-20 01:48:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:48:19,916 INFO L479 AbstractCegarLoop]: Abstraction has 2686 states and 2890 transitions. [2020-07-20 01:48:19,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-20 01:48:19,916 INFO L276 IsEmpty]: Start isEmpty. Operand 2686 states and 2890 transitions. [2020-07-20 01:48:19,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-07-20 01:48:19,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 01:48:19,927 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 01:48:20,140 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:48:20,141 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 01:48:20,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 01:48:20,142 INFO L82 PathProgramCache]: Analyzing trace with hash 1873477998, now seen corresponding path program 1 times [2020-07-20 01:48:20,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 01:48:20,142 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196124466] [2020-07-20 01:48:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@325baa15 [2020-07-20 01:48:20,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:20,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:20,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:20,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:20,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 01:48:21,015 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 153 proven. 386 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-20 01:48:21,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196124466] [2020-07-20 01:48:21,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [556197509] [2020-07-20 01:48:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57a12628 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:48:21,279 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@57a12628 issued 4 check-sat command(s) [2020-07-20 01:48:21,279 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 01:48:21,282 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-20 01:48:21,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 01:48:21,363 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:48:21,364 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 01:48:21,365 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-07-20 01:48:21,369 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 01:48:21,371 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 01:48:21,372 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 01:48:21,375 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-07-20 01:48:21,376 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-07-20 01:48:39,195 WARN L193 SmtUtils]: Spent 15.28 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2020-07-20 01:48:40,793 INFO L501 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-07-20 01:48:41,027 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 2, 1] term [2020-07-20 01:48:41,028 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:48:41,028 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:48:41,096 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-20 01:48:41,239 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 466 proven. 2 refuted. 0 times theorem prover too weak. 155 trivial. 0 not checked. [2020-07-20 01:48:41,240 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 01:48:41,240 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 18 [2020-07-20 01:48:41,240 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139524768] [2020-07-20 01:48:41,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-20 01:48:41,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 01:48:41,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-20 01:48:41,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=251, Unknown=1, NotChecked=0, Total=306 [2020-07-20 01:48:41,242 INFO L87 Difference]: Start difference. First operand 2686 states and 2890 transitions. Second operand 18 states. [2020-07-20 01:48:48,276 WARN L193 SmtUtils]: Spent 5.59 s on a formula simplification. DAG size of input: 58 DAG size of output: 34 [2020-07-20 01:49:05,507 WARN L193 SmtUtils]: Spent 7.36 s on a formula simplification. DAG size of input: 49 DAG size of output: 29 [2020-07-20 01:49:06,584 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2020-07-20 01:49:12,124 WARN L193 SmtUtils]: Spent 4.41 s on a formula simplification. DAG size of input: 52 DAG size of output: 36 [2020-07-20 01:49:16,780 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50 [2020-07-20 01:49:45,455 WARN L193 SmtUtils]: Spent 22.60 s on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2020-07-20 01:49:46,733 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 25 [2020-07-20 01:49:49,466 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 63 DAG size of output: 43 [2020-07-20 01:49:49,705 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 20 [2020-07-20 01:49:50,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 01:49:50,429 INFO L93 Difference]: Finished difference Result 6598 states and 7362 transitions. [2020-07-20 01:49:50,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-07-20 01:49:50,432 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 401 [2020-07-20 01:49:50,433 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 01:49:50,433 INFO L225 Difference]: With dead ends: 6598 [2020-07-20 01:49:50,434 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 01:49:50,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 471 GetRequests, 425 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 490 ImplicationChecksByTransitivity, 64.6s TimeCoverageRelationStatistics Valid=463, Invalid=1698, Unknown=1, NotChecked=0, Total=2162 [2020-07-20 01:49:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 01:49:50,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 01:49:50,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 01:49:50,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 01:49:50,452 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 401 [2020-07-20 01:49:50,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 01:49:50,452 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 01:49:50,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-20 01:49:50,452 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 01:49:50,452 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 01:49:50,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-20 01:49:50,657 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 01:49:52,224 WARN L193 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 312 [2020-07-20 01:49:52,725 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 401 DAG size of output: 312 [2020-07-20 01:49:52,989 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 31 [2020-07-20 01:49:57,494 WARN L193 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 339 DAG size of output: 75 [2020-07-20 01:50:02,834 WARN L193 SmtUtils]: Spent 5.29 s on a formula simplification. DAG size of input: 300 DAG size of output: 74 [2020-07-20 01:50:06,727 WARN L193 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 300 DAG size of output: 74 [2020-07-20 01:50:06,732 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:50:06,732 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~a10~0 |old(~a10~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a19~0 |old(~a19~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|)) [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,733 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-07-20 01:50:06,734 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-07-20 01:50:06,735 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-07-20 01:50:06,736 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 118) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-07-20 01:50:06,737 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,738 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-07-20 01:50:06,739 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,740 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,741 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-07-20 01:50:06,742 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,743 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-07-20 01:50:06,744 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,745 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-07-20 01:50:06,746 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-07-20 01:50:06,747 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-07-20 01:50:06,747 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-07-20 01:50:06,747 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse0 (= 9 |old(~a19~0)|))) (let ((.cse5 (= 8 |old(~a19~0)|)) (.cse10 (not .cse0)) (.cse3 (not (<= 2 |old(~a10~0)|))) (.cse8 (= 2 |old(~a10~0)|)) (.cse6 (not (= 0 ~a12~0))) (.cse7 (not (= 14 ~a4~0))) (.cse1 (not (<= |old(~a19~0)| 9))) (.cse12 (and (not (<= |old(~a1~0)| 38)) (not (< 218 |old(~a1~0)|)))) (.cse4 (= 0 |old(~a10~0)|)) (.cse11 (not (<= |old(~a1~0)| 23))) (.cse9 (not (<= |old(~a10~0)| 0))) (.cse2 (and (= ~a10~0 |old(~a10~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a1~0 |old(~a1~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse0 .cse1 .cse2) (or .cse6 .cse5 .cse7 .cse1 .cse8 .cse2) (or .cse9 .cse10 .cse2) (or .cse11 .cse10 .cse2) (or .cse9 .cse6 .cse7 .cse1 .cse2) (or .cse1 .cse8 .cse2 .cse3) (or (not (<= 10 |old(~a19~0)|)) .cse4 .cse8 .cse2 (not (<= |old(~a10~0)| 2))) (or (not (<= 23 |old(~a1~0)|)) .cse12 .cse6 .cse7 .cse1 .cse2) (or .cse12 (not (<= 9 |old(~a19~0)|)) (not .cse4) .cse2) (or .cse11 .cse9 .cse2)))) [2020-07-20 01:50:06,747 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-07-20 01:50:06,747 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-07-20 01:50:06,747 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-07-20 01:50:06,747 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-07-20 01:50:06,748 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-07-20 01:50:06,749 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-07-20 01:50:06,750 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-07-20 01:50:06,751 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-07-20 01:50:06,752 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 01:50:06,753 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) (<= ~a1~0 23) (<= 23 ~a1~0)) [2020-07-20 01:50:06,753 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 01:50:06,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 01:50:06,753 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a1~0)| 23)) (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)|))) [2020-07-20 01:50:06,754 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-07-20 01:50:06,754 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse5 (<= ~a10~0 2)) (.cse0 (<= ~a10~0 0)) (.cse6 (not (= 2 ~a10~0))) (.cse7 (or (<= ~a1~0 38) (< 218 ~a1~0))) (.cse3 (<= 2 ~a10~0)) (.cse1 (<= ~a19~0 9)) (.cse2 (= 0 |old(~a10~0)|)) (.cse4 (not (= 9 ~a19~0))) (.cse8 (= 8 ~a19~0)) (.cse9 (= ~a19~0 |old(~a19~0)|))) (or (not (<= |old(~a1~0)| 23)) (and .cse0 .cse1 .cse2) (and .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a10~0)| 0)) (and (<= 10 ~a19~0) .cse2 .cse5 .cse6 (not (= 0 ~a10~0))) (not (<= 9 |old(~a19~0)|)) (and .cse7 .cse2 .cse5 (<= 23 ~a1~0) .cse6) (and (= 1 ~a10~0) .cse8 (<= 331505 ~a1~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= ~a1~0 23) .cse2) (and .cse2 .cse9 .cse6) (not (<= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse1 .cse7 .cse2 .cse3) (and .cse1 .cse2 .cse4 (not .cse8)) (and (= ~a10~0 |old(~a10~0)|) .cse9 (= ~a1~0 |old(~a1~0)|)))) [2020-07-20 01:50:06,754 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-07-20 01:50:06,754 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-07-20 01:50:06,754 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse5 (<= ~a10~0 2)) (.cse0 (<= ~a10~0 0)) (.cse6 (not (= 2 ~a10~0))) (.cse7 (or (<= ~a1~0 38) (< 218 ~a1~0))) (.cse3 (<= 2 ~a10~0)) (.cse1 (<= ~a19~0 9)) (.cse2 (= 0 |old(~a10~0)|)) (.cse4 (not (= 9 ~a19~0))) (.cse8 (= 8 ~a19~0)) (.cse9 (= ~a19~0 |old(~a19~0)|))) (or (not (<= |old(~a1~0)| 23)) (and .cse0 .cse1 .cse2) (and .cse1 .cse2 .cse3 .cse4) (not (<= |old(~a10~0)| 0)) (and (<= 10 ~a19~0) .cse2 .cse5 .cse6 (not (= 0 ~a10~0))) (not (<= 9 |old(~a19~0)|)) (and .cse7 .cse2 .cse5 (<= 23 ~a1~0) .cse6) (and (= 1 ~a10~0) .cse8 (<= 331505 ~a1~0)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and .cse0 (<= ~a1~0 23) .cse2) (and .cse2 .cse9 .cse6) (not (<= 23 |old(~a1~0)|)) (not (= 0 ~a12~0)) (and .cse1 .cse7 .cse2 .cse3) (and .cse1 .cse2 .cse4 (not .cse8)) (and (= ~a10~0 |old(~a10~0)|) .cse9 (= ~a1~0 |old(~a1~0)|)))) [2020-07-20 01:50:06,754 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-07-20 01:50:06,775 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 01:50:06 BoogieIcfgContainer [2020-07-20 01:50:06,775 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 01:50:06,777 INFO L168 Benchmark]: Toolchain (without parser) took 638313.69 ms. Allocated memory was 143.7 MB in the beginning and 608.2 MB in the end (delta: 464.5 MB). Free memory was 100.0 MB in the beginning and 157.0 MB in the end (delta: -57.0 MB). Peak memory consumption was 486.6 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:06,778 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 01:50:06,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 750.56 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 99.6 MB in the beginning and 168.5 MB in the end (delta: -69.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:06,779 INFO L168 Benchmark]: Boogie Preprocessor took 111.10 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 164.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:06,780 INFO L168 Benchmark]: RCFGBuilder took 1293.74 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.1 MB in the beginning and 179.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:06,781 INFO L168 Benchmark]: TraceAbstraction took 636152.14 ms. Allocated memory was 232.8 MB in the beginning and 608.2 MB in the end (delta: 375.4 MB). Free memory was 179.6 MB in the beginning and 157.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 477.1 MB. Max. memory is 7.1 GB. [2020-07-20 01:50:06,784 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 143.7 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 750.56 ms. Allocated memory was 143.7 MB in the beginning and 202.9 MB in the end (delta: 59.2 MB). Free memory was 99.6 MB in the beginning and 168.5 MB in the end (delta: -69.0 MB). Peak memory consumption was 30.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 111.10 ms. Allocated memory is still 202.9 MB. Free memory was 168.5 MB in the beginning and 164.1 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1293.74 ms. Allocated memory was 202.9 MB in the beginning and 232.8 MB in the end (delta: 29.9 MB). Free memory was 164.1 MB in the beginning and 179.6 MB in the end (delta: -15.4 MB). Peak memory consumption was 86.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 636152.14 ms. Allocated memory was 232.8 MB in the beginning and 608.2 MB in the end (delta: 375.4 MB). Free memory was 179.6 MB in the beginning and 157.0 MB in the end (delta: 22.6 MB). Peak memory consumption was 477.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 118]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 582]: Loop Invariant Derived loop invariant: (((((((((((((((!(\old(a1) <= 23) || ((a10 <= 0 && a19 <= 9) && 0 == \old(a10))) || (((a19 <= 9 && 0 == \old(a10)) && 2 <= a10) && !(9 == a19))) || !(\old(a10) <= 0)) || ((((10 <= a19 && 0 == \old(a10)) && a10 <= 2) && !(2 == a10)) && !(0 == a10))) || !(9 <= \old(a19))) || (((((a1 <= 38 || 218 < a1) && 0 == \old(a10)) && a10 <= 2) && 23 <= a1) && !(2 == a10))) || ((1 == a10 && 8 == a19) && 331505 <= a1)) || !(14 == a4)) || !(\old(a19) <= 9)) || ((a10 <= 0 && a1 <= 23) && 0 == \old(a10))) || ((0 == \old(a10) && a19 == \old(a19)) && !(2 == a10))) || !(23 <= \old(a1))) || !(0 == a12)) || (((a19 <= 9 && (a1 <= 38 || 218 < a1)) && 0 == \old(a10)) && 2 <= a10)) || (((a19 <= 9 && 0 == \old(a10)) && !(9 == a19)) && !(8 == a19))) || ((a10 == \old(a10) && a19 == \old(a19)) && a1 == \old(a1)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 619.9s, OverallIterations: 10, TraceHistogramMax: 5, AutomataDifference: 565.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 16.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 332 SDtfs, 10993 SDslu, 872 SDs, 0 SdLazy, 22628 SolverSat, 3470 SolverUnsat, 17 SolverUnknown, 0 SolverNotchecked, 81.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2011 GetRequests, 1759 SyntacticMatches, 4 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3764 ImplicationChecksByTransitivity, 514.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3914occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 3274 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 202 PreInvPairs, 326 NumberOfFragments, 694 HoareAnnotationTreeSize, 202 FomulaSimplifications, 651354 FormulaSimplificationTreeSizeReduction, 2.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 90443 FormulaSimplificationTreeSizeReductionInter, 13.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 49.5s InterpolantComputationTime, 3697 NumberOfCodeBlocks, 3697 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 3681 ConstructedInterpolants, 52 QuantifiedInterpolants, 3135332 SizeOfPredicates, 5 NumberOfNonLiveVariables, 2819 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 16 InterpolantComputations, 5 PerfectInterpolantSequences, 2880/3767 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...