/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_FUNCTIONS --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/Problem01_label08.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 23:22:30,491 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 23:22:30,494 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 23:22:30,512 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-19 23:22:30,533 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 23:22:30,534 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 23:22:30,535 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 23:22:30,536 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 23:22:30,537 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 23:22:30,538 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 23:22:30,539 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 23:22:30,541 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 23:22:30,542 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 23:22:30,543 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 23:22:30,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 23:22:30,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 23:22:30,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-19 23:22:30,554 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 23:22:30,555 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 23:22:30,555 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 23:22:30,556 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 [2020-07-19 23:22:30,569 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 23:22:30,570 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 23:22:30,571 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 23:22:30,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 23:22:30,571 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 23:22:30,571 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 23:22:30,572 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 23:22:30,572 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 23:22:30,572 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 23:22:30,572 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 23:22:30,572 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 23:22:30,572 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 23:22:30,573 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 23:22:30,573 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 23:22:30,573 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 23:22:30,573 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 23:22:30,573 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 23:22:30,574 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 23:22:30,574 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 23:22:30,574 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 23:22:30,574 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 23:22:30,574 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 23:22:30,575 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 23:22:30,575 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 23:22:30,575 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 23:22:30,575 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 23:22:30,575 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 23:22:30,576 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 23:22:30,576 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 23:22:30,576 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_FUNCTIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-19 23:22:30,849 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 23:22:30,862 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 23:22:30,865 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 23:22:30,866 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 23:22:30,867 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 23:22:30,867 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-19 23:22:30,924 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5e586df/91500466df4a4edba0b17513caae4ccb/FLAGd12c8fac1 [2020-07-19 23:22:31,423 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 23:22:31,424 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label08.c [2020-07-19 23:22:31,437 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5e586df/91500466df4a4edba0b17513caae4ccb/FLAGd12c8fac1 [2020-07-19 23:22:31,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a5e586df/91500466df4a4edba0b17513caae4ccb [2020-07-19 23:22:31,737 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 23:22:31,740 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 23:22:31,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 23:22:31,742 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 23:22:31,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 23:22:31,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:22:31" (1/1) ... [2020-07-19 23:22:31,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6429128a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:31, skipping insertion in model container [2020-07-19 23:22:31,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 11:22:31" (1/1) ... [2020-07-19 23:22:31,756 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 23:22:31,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 23:22:32,322 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:22:32,327 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 23:22:32,443 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 23:22:32,459 INFO L208 MainTranslator]: Completed translation [2020-07-19 23:22:32,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32 WrapperNode [2020-07-19 23:22:32,460 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 23:22:32,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 23:22:32,461 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 23:22:32,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 23:22:32,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,493 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,533 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,548 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (1/1) ... [2020-07-19 23:22:32,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 23:22:32,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 23:22:32,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 23:22:32,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 23:22:32,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (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 [2020-07-19 23:22:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 23:22:32,637 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 23:22:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-19 23:22:32,638 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 23:22:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-19 23:22:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 23:22:32,638 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 23:22:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-19 23:22:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 23:22:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 23:22:32,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 23:22:33,729 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 23:22:33,729 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-19 23:22:33,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:22:33 BoogieIcfgContainer [2020-07-19 23:22:33,738 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 23:22:33,739 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 23:22:33,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 23:22:33,743 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 23:22:33,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 11:22:31" (1/3) ... [2020-07-19 23:22:33,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3637dcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:22:33, skipping insertion in model container [2020-07-19 23:22:33,745 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 11:22:32" (2/3) ... [2020-07-19 23:22:33,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3637dcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 11:22:33, skipping insertion in model container [2020-07-19 23:22:33,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 11:22:33" (3/3) ... [2020-07-19 23:22:33,750 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label08.c [2020-07-19 23:22:33,761 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 23:22:33,772 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 23:22:33,785 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 23:22:33,819 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 23:22:33,820 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 23:22:33,820 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 23:22:33,820 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 23:22:33,821 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 23:22:33,821 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 23:22:33,821 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 23:22:33,821 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 23:22:33,848 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-19 23:22:33,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-19 23:22:33,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:33,872 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:33,872 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:33,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:33,879 INFO L82 PathProgramCache]: Analyzing trace with hash -1920403729, now seen corresponding path program 1 times [2020-07-19 23:22:33,889 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:33,889 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623996253] [2020-07-19 23:22:33,890 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:34,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:34,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:34,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:34,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623996253] [2020-07-19 23:22:34,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:22:34,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 23:22:34,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506790755] [2020-07-19 23:22:34,492 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 23:22:34,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:34,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 23:22:34,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 23:22:34,509 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 5 states. [2020-07-19 23:22:35,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:35,817 INFO L93 Difference]: Finished difference Result 557 states and 956 transitions. [2020-07-19 23:22:35,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 23:22:35,819 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-07-19 23:22:35,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:35,835 INFO L225 Difference]: With dead ends: 557 [2020-07-19 23:22:35,835 INFO L226 Difference]: Without dead ends: 286 [2020-07-19 23:22:35,842 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-19 23:22:35,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2020-07-19 23:22:35,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 280. [2020-07-19 23:22:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2020-07-19 23:22:35,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 402 transitions. [2020-07-19 23:22:35,915 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 402 transitions. Word has length 119 [2020-07-19 23:22:35,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:35,916 INFO L479 AbstractCegarLoop]: Abstraction has 280 states and 402 transitions. [2020-07-19 23:22:35,916 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 23:22:35,916 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 402 transitions. [2020-07-19 23:22:35,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-19 23:22:35,920 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:35,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:35,921 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 23:22:35,921 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:35,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:35,922 INFO L82 PathProgramCache]: Analyzing trace with hash 10659704, now seen corresponding path program 1 times [2020-07-19 23:22:35,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:35,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199814143] [2020-07-19 23:22:35,923 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:35,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:36,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:36,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:36,104 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:36,105 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199814143] [2020-07-19 23:22:36,105 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:22:36,105 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:22:36,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580249683] [2020-07-19 23:22:36,107 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:22:36,107 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:36,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:22:36,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:22:36,108 INFO L87 Difference]: Start difference. First operand 280 states and 402 transitions. Second operand 8 states. [2020-07-19 23:22:37,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:37,584 INFO L93 Difference]: Finished difference Result 713 states and 1049 transitions. [2020-07-19 23:22:37,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:22:37,585 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-07-19 23:22:37,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:37,590 INFO L225 Difference]: With dead ends: 713 [2020-07-19 23:22:37,590 INFO L226 Difference]: Without dead ends: 439 [2020-07-19 23:22:37,592 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-07-19 23:22:37,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 439 states. [2020-07-19 23:22:37,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 439 to 421. [2020-07-19 23:22:37,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 421 states. [2020-07-19 23:22:37,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 590 transitions. [2020-07-19 23:22:37,641 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 590 transitions. Word has length 129 [2020-07-19 23:22:37,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:37,641 INFO L479 AbstractCegarLoop]: Abstraction has 421 states and 590 transitions. [2020-07-19 23:22:37,641 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:22:37,641 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 590 transitions. [2020-07-19 23:22:37,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2020-07-19 23:22:37,647 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:37,650 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:37,651 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 23:22:37,651 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:37,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:37,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1525536778, now seen corresponding path program 1 times [2020-07-19 23:22:37,652 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:37,652 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1342784881] [2020-07-19 23:22:37,652 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:37,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:38,019 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:38,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1342784881] [2020-07-19 23:22:38,020 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1627942110] [2020-07-19 23:22:38,020 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7413509d 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 [2020-07-19 23:22:38,180 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7413509d issued 4 check-sat command(s) [2020-07-19 23:22:38,181 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:38,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 364 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 23:22:38,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:38,267 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:38,268 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-19 23:22:38,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-07-19 23:22:38,270 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643591338] [2020-07-19 23:22:38,271 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 23:22:38,271 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:38,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 23:22:38,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:22:38,281 INFO L87 Difference]: Start difference. First operand 421 states and 590 transitions. Second operand 3 states. [2020-07-19 23:22:38,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:38,804 INFO L93 Difference]: Finished difference Result 1247 states and 1787 transitions. [2020-07-19 23:22:38,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 23:22:38,804 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 130 [2020-07-19 23:22:38,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:38,810 INFO L225 Difference]: With dead ends: 1247 [2020-07-19 23:22:38,810 INFO L226 Difference]: Without dead ends: 832 [2020-07-19 23:22:38,811 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 138 GetRequests, 133 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-07-19 23:22:38,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states. [2020-07-19 23:22:38,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 832. [2020-07-19 23:22:38,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 832 states. [2020-07-19 23:22:38,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 832 states to 832 states and 1144 transitions. [2020-07-19 23:22:38,856 INFO L78 Accepts]: Start accepts. Automaton has 832 states and 1144 transitions. Word has length 130 [2020-07-19 23:22:38,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:38,857 INFO L479 AbstractCegarLoop]: Abstraction has 832 states and 1144 transitions. [2020-07-19 23:22:38,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 23:22:38,857 INFO L276 IsEmpty]: Start isEmpty. Operand 832 states and 1144 transitions. [2020-07-19 23:22:38,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-07-19 23:22:38,861 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:38,861 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:39,067 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-07-19 23:22:39,068 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:39,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:39,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1511542958, now seen corresponding path program 1 times [2020-07-19 23:22:39,069 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:39,070 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791224901] [2020-07-19 23:22:39,070 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:39,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:39,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:39,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:39,276 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:39,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791224901] [2020-07-19 23:22:39,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 23:22:39,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 23:22:39,277 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216485133] [2020-07-19 23:22:39,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:22:39,279 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:39,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:22:39,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:22:39,280 INFO L87 Difference]: Start difference. First operand 832 states and 1144 transitions. Second operand 8 states. [2020-07-19 23:22:41,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:41,056 INFO L93 Difference]: Finished difference Result 2808 states and 4147 transitions. [2020-07-19 23:22:41,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-19 23:22:41,056 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2020-07-19 23:22:41,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:41,073 INFO L225 Difference]: With dead ends: 2808 [2020-07-19 23:22:41,073 INFO L226 Difference]: Without dead ends: 1982 [2020-07-19 23:22:41,076 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-07-19 23:22:41,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1982 states. [2020-07-19 23:22:41,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1982 to 1543. [2020-07-19 23:22:41,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1543 states. [2020-07-19 23:22:41,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1543 states to 1543 states and 2052 transitions. [2020-07-19 23:22:41,178 INFO L78 Accepts]: Start accepts. Automaton has 1543 states and 2052 transitions. Word has length 144 [2020-07-19 23:22:41,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:41,178 INFO L479 AbstractCegarLoop]: Abstraction has 1543 states and 2052 transitions. [2020-07-19 23:22:41,178 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:22:41,178 INFO L276 IsEmpty]: Start isEmpty. Operand 1543 states and 2052 transitions. [2020-07-19 23:22:41,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-07-19 23:22:41,186 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:41,187 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:41,187 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 23:22:41,187 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:41,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:41,188 INFO L82 PathProgramCache]: Analyzing trace with hash 1256524215, now seen corresponding path program 1 times [2020-07-19 23:22:41,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:41,189 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109120408] [2020-07-19 23:22:41,189 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:41,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:41,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:41,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:41,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:41,399 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 44 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:22:41,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109120408] [2020-07-19 23:22:41,399 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [639148278] [2020-07-19 23:22:41,400 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@16d9a22e 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 [2020-07-19 23:22:41,589 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@16d9a22e issued 4 check-sat command(s) [2020-07-19 23:22:41,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:41,592 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 23:22:41,609 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:41,674 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 45 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 23:22:41,674 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:41,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 8 [2020-07-19 23:22:41,675 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598594645] [2020-07-19 23:22:41,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 23:22:41,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:41,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 23:22:41,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-19 23:22:41,678 INFO L87 Difference]: Start difference. First operand 1543 states and 2052 transitions. Second operand 8 states. [2020-07-19 23:22:42,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:42,918 INFO L93 Difference]: Finished difference Result 3541 states and 4910 transitions. [2020-07-19 23:22:42,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-19 23:22:42,919 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 161 [2020-07-19 23:22:42,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:42,933 INFO L225 Difference]: With dead ends: 3541 [2020-07-19 23:22:42,933 INFO L226 Difference]: Without dead ends: 2004 [2020-07-19 23:22:42,940 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-07-19 23:22:42,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2004 states. [2020-07-19 23:22:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2004 to 1684. [2020-07-19 23:22:43,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1684 states. [2020-07-19 23:22:43,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1684 states to 1684 states and 2237 transitions. [2020-07-19 23:22:43,060 INFO L78 Accepts]: Start accepts. Automaton has 1684 states and 2237 transitions. Word has length 161 [2020-07-19 23:22:43,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:43,061 INFO L479 AbstractCegarLoop]: Abstraction has 1684 states and 2237 transitions. [2020-07-19 23:22:43,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 23:22:43,062 INFO L276 IsEmpty]: Start isEmpty. Operand 1684 states and 2237 transitions. [2020-07-19 23:22:43,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-19 23:22:43,068 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:43,069 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:43,283 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:43,284 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:43,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:43,284 INFO L82 PathProgramCache]: Analyzing trace with hash -494413009, now seen corresponding path program 1 times [2020-07-19 23:22:43,284 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:43,285 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369005865] [2020-07-19 23:22:43,285 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:43,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:43,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:43,487 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 52 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:22:43,488 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369005865] [2020-07-19 23:22:43,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [340568801] [2020-07-19 23:22:43,489 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f106ad5 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:43,680 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@7f106ad5 issued 4 check-sat command(s) [2020-07-19 23:22:43,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:43,683 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-19 23:22:43,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:43,842 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 24 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-19 23:22:43,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:43,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 23:22:43,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381913051] [2020-07-19 23:22:43,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:22:43,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:43,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:22:43,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:22:43,847 INFO L87 Difference]: Start difference. First operand 1684 states and 2237 transitions. Second operand 9 states. [2020-07-19 23:22:46,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:46,667 INFO L93 Difference]: Finished difference Result 3992 states and 5524 transitions. [2020-07-19 23:22:46,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-07-19 23:22:46,668 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 165 [2020-07-19 23:22:46,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:46,682 INFO L225 Difference]: With dead ends: 3992 [2020-07-19 23:22:46,683 INFO L226 Difference]: Without dead ends: 2314 [2020-07-19 23:22:46,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 198 GetRequests, 175 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 99 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=129, Invalid=423, Unknown=0, NotChecked=0, Total=552 [2020-07-19 23:22:46,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2314 states. [2020-07-19 23:22:46,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2314 to 1708. [2020-07-19 23:22:46,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1708 states. [2020-07-19 23:22:46,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1708 states to 1708 states and 2121 transitions. [2020-07-19 23:22:46,755 INFO L78 Accepts]: Start accepts. Automaton has 1708 states and 2121 transitions. Word has length 165 [2020-07-19 23:22:46,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:46,756 INFO L479 AbstractCegarLoop]: Abstraction has 1708 states and 2121 transitions. [2020-07-19 23:22:46,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:22:46,756 INFO L276 IsEmpty]: Start isEmpty. Operand 1708 states and 2121 transitions. [2020-07-19 23:22:46,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-07-19 23:22:46,761 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:46,762 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:46,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:46,978 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:46,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:46,978 INFO L82 PathProgramCache]: Analyzing trace with hash -1777312675, now seen corresponding path program 1 times [2020-07-19 23:22:46,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:46,979 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1978573451] [2020-07-19 23:22:46,979 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:47,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:47,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:47,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:47,190 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 65 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-19 23:22:47,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1978573451] [2020-07-19 23:22:47,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556328370] [2020-07-19 23:22:47,191 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17af565d 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 [2020-07-19 23:22:47,314 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@17af565d issued 4 check-sat command(s) [2020-07-19 23:22:47,315 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:47,316 INFO L263 TraceCheckSpWp]: Trace formula consists of 468 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-19 23:22:47,320 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:47,388 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-07-19 23:22:47,388 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:47,388 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2020-07-19 23:22:47,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554657628] [2020-07-19 23:22:47,390 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-19 23:22:47,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:47,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-19 23:22:47,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-07-19 23:22:47,390 INFO L87 Difference]: Start difference. First operand 1708 states and 2121 transitions. Second operand 9 states. [2020-07-19 23:22:49,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:49,792 INFO L93 Difference]: Finished difference Result 5639 states and 7677 transitions. [2020-07-19 23:22:49,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-07-19 23:22:49,797 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 185 [2020-07-19 23:22:49,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:49,820 INFO L225 Difference]: With dead ends: 5639 [2020-07-19 23:22:49,821 INFO L226 Difference]: Without dead ends: 3937 [2020-07-19 23:22:49,830 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 197 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=180, Invalid=632, Unknown=0, NotChecked=0, Total=812 [2020-07-19 23:22:49,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3937 states. [2020-07-19 23:22:49,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3937 to 3299. [2020-07-19 23:22:49,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3299 states. [2020-07-19 23:22:49,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3299 states to 3299 states and 4179 transitions. [2020-07-19 23:22:49,983 INFO L78 Accepts]: Start accepts. Automaton has 3299 states and 4179 transitions. Word has length 185 [2020-07-19 23:22:49,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:49,984 INFO L479 AbstractCegarLoop]: Abstraction has 3299 states and 4179 transitions. [2020-07-19 23:22:49,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-19 23:22:49,984 INFO L276 IsEmpty]: Start isEmpty. Operand 3299 states and 4179 transitions. [2020-07-19 23:22:49,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2020-07-19 23:22:49,994 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 23:22:49,994 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-19 23:22:50,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:50,208 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 23:22:50,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 23:22:50,208 INFO L82 PathProgramCache]: Analyzing trace with hash 777795997, now seen corresponding path program 1 times [2020-07-19 23:22:50,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-19 23:22:50,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261588286] [2020-07-19 23:22:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@380c8fa0 [2020-07-19 23:22:50,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:50,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:50,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 23:22:50,448 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 108 proven. 26 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2020-07-19 23:22:50,448 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261588286] [2020-07-19 23:22:50,449 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603974544] [2020-07-19 23:22:50,449 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1041c6f0 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:50,654 INFO L228 tOrderPrioritization]: Assert order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@1041c6f0 issued 4 check-sat command(s) [2020-07-19 23:22:50,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-19 23:22:50,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 616 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-19 23:22:50,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-19 23:22:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 175 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-19 23:22:50,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-19 23:22:50,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-07-19 23:22:50,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310612738] [2020-07-19 23:22:50,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-19 23:22:50,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-19 23:22:50,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-19 23:22:50,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-07-19 23:22:50,752 INFO L87 Difference]: Start difference. First operand 3299 states and 4179 transitions. Second operand 10 states. [2020-07-19 23:22:52,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 23:22:52,968 INFO L93 Difference]: Finished difference Result 6804 states and 8661 transitions. [2020-07-19 23:22:52,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-19 23:22:52,969 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 223 [2020-07-19 23:22:52,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 23:22:52,969 INFO L225 Difference]: With dead ends: 6804 [2020-07-19 23:22:52,970 INFO L226 Difference]: Without dead ends: 0 [2020-07-19 23:22:52,983 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 253 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-07-19 23:22:52,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-19 23:22:52,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-19 23:22:52,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-19 23:22:52,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-19 23:22:52,984 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 223 [2020-07-19 23:22:52,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 23:22:52,984 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-19 23:22:52,984 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-19 23:22:52,984 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-19 23:22:52,984 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-19 23:22:53,198 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-07-19 23:22:53,201 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-19 23:22:53,923 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 208 [2020-07-19 23:22:54,189 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 208 [2020-07-19 23:22:55,071 WARN L193 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 56 [2020-07-19 23:22:55,944 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 56 [2020-07-19 23:22:56,745 WARN L193 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 56 [2020-07-19 23:22:56,749 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:22:56,750 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a12~0 |old(~a12~0)|) (= ~z~0 |old(~z~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a7~0 |old(~a7~0)|) (= ~v~0 |old(~v~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~y~0 |old(~y~0)|) (= ~f~0 |old(~f~0)|) (= ~a~0 |old(~a~0)|) (= ~x~0 |old(~x~0)|) (= ~b~0 |old(~b~0)|) (= ~a20~0 |old(~a20~0)|) (= ~d~0 |old(~d~0)|)) [2020-07-19 23:22:56,750 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:22:56,750 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-19 23:22:56,750 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-19 23:22:56,750 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-19 23:22:56,751 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-19 23:22:56,752 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-19 23:22:56,753 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 515) no Hoare annotation was computed. [2020-07-19 23:22:56,754 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-19 23:22:56,755 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-19 23:22:56,756 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-19 23:22:56,757 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,758 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,759 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-19 23:22:56,760 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-19 23:22:56,761 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-19 23:22:56,762 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse8 (= ~a7~0 |old(~a7~0)|)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse10 (= ~a16~0 |old(~a16~0)|)) (.cse11 (= ~a8~0 |old(~a8~0)|)) (.cse12 (= ~a20~0 |old(~a20~0)|))) (let ((.cse5 (not (<= |old(~a21~0)| 0))) (.cse6 (and .cse8 .cse9 .cse10 .cse11 .cse12 (= ~a21~0 |old(~a21~0)|))) (.cse0 (not (<= |old(~a7~0)| 0))) (.cse7 (not (= 1 |old(~a20~0)|))) (.cse4 (not (= 1 |old(~a7~0)|))) (.cse2 (not (<= |old(~a16~0)| 5))) (.cse1 (and .cse8 .cse9 .cse10 .cse11 (= 1 ~a21~0) .cse12)) (.cse3 (not (= 1 |old(~a21~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse5 .cse2 .cse6) (or .cse7 .cse0 .cse1 .cse3) (or .cse7 .cse5 .cse4 .cse6) (or (= 13 |old(~a8~0)|) .cse4 .cse1 .cse2 .cse3) (or (not (<= 15 |old(~a8~0)|)) .cse0 .cse1 .cse3) (or .cse7 .cse4 .cse2 .cse1 (not (= 1 |old(~a17~0)|)) .cse3)))) [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-19 23:22:56,763 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,764 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-19 23:22:56,765 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-19 23:22:56,766 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (<= ~a16~0 5) (<= 15 ~a8~0) (<= 5 ~a16~0) (= 1 ~a21~0) (= 1 ~a20~0)) [2020-07-19 23:22:56,767 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-19 23:22:56,767 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= 1 ~a21~0) (= 1 ~a20~0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (not (= 1 |old(~a21~0)|))) [2020-07-19 23:22:56,767 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-19 23:22:56,768 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse3 (= 1 ~a7~0)) (.cse6 (<= ~a21~0 0)) (.cse2 (= 1 ~a20~0)) (.cse4 (<= ~a16~0 5)) (.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a7~0 0)) (.cse5 (= ~a21~0 |old(~a21~0)|))) (or (and .cse0 .cse1 .cse2) (and .cse3 (not (= 13 ~a8~0)) .cse4 .cse5) (and .cse3 .cse6 .cse4) (and .cse3 .cse4 (= 1 ~a17~0) .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse6 .cse2) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse4 .cse1) (and .cse0 (<= 15 ~a8~0) .cse5) (not (= 1 |old(~a21~0)|)))) [2020-07-19 23:22:56,768 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-19 23:22:56,768 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-19 23:22:56,768 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse3 (= 1 ~a7~0)) (.cse6 (<= ~a21~0 0)) (.cse2 (= 1 ~a20~0)) (.cse4 (<= ~a16~0 5)) (.cse1 (= 1 ~a21~0)) (.cse0 (<= ~a7~0 0)) (.cse5 (= ~a21~0 |old(~a21~0)|))) (or (and .cse0 .cse1 .cse2) (and .cse3 (not (= 13 ~a8~0)) .cse4 .cse5) (and .cse3 .cse6 .cse4) (and .cse3 .cse4 (= 1 ~a17~0) .cse1 .cse2) (not (<= |old(~a7~0)| 0)) (not (= 1 |old(~a17~0)|)) (not (<= 5 |old(~a16~0)|)) (and .cse3 .cse6 .cse2) (not (= 1 |old(~a20~0)|)) (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a16~0)| 5)) (and .cse0 .cse4 .cse1) (and .cse0 (<= 15 ~a8~0) .cse5) (not (= 1 |old(~a21~0)|)))) [2020-07-19 23:22:56,768 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-19 23:22:56,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 11:22:56 BoogieIcfgContainer [2020-07-19 23:22:56,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 23:22:56,791 INFO L168 Benchmark]: Toolchain (without parser) took 25051.60 ms. Allocated memory was 138.9 MB in the beginning and 551.6 MB in the end (delta: 412.6 MB). Free memory was 101.1 MB in the beginning and 294.2 MB in the end (delta: -193.2 MB). Peak memory consumption was 433.8 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:56,791 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-19 23:22:56,792 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.75 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 100.6 MB in the beginning and 171.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:56,793 INFO L168 Benchmark]: Boogie Preprocessor took 98.30 ms. Allocated memory is still 206.0 MB. Free memory was 171.5 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:56,794 INFO L168 Benchmark]: RCFGBuilder took 1179.25 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 166.6 MB in the beginning and 180.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:56,795 INFO L168 Benchmark]: TraceAbstraction took 23049.13 ms. Allocated memory was 239.6 MB in the beginning and 551.6 MB in the end (delta: 312.0 MB). Free memory was 180.8 MB in the beginning and 294.2 MB in the end (delta: -113.4 MB). Peak memory consumption was 412.9 MB. Max. memory is 7.1 GB. [2020-07-19 23:22:56,799 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 138.9 MB. Free memory was 120.8 MB in the beginning and 120.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.75 ms. Allocated memory was 138.9 MB in the beginning and 206.0 MB in the end (delta: 67.1 MB). Free memory was 100.6 MB in the beginning and 171.5 MB in the end (delta: -70.9 MB). Peak memory consumption was 34.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.30 ms. Allocated memory is still 206.0 MB. Free memory was 171.5 MB in the beginning and 166.6 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1179.25 ms. Allocated memory was 206.0 MB in the beginning and 239.6 MB in the end (delta: 33.6 MB). Free memory was 166.6 MB in the beginning and 180.8 MB in the end (delta: -14.2 MB). Peak memory consumption was 81.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 23049.13 ms. Allocated memory was 239.6 MB in the beginning and 551.6 MB in the end (delta: 312.0 MB). Free memory was 180.8 MB in the beginning and 294.2 MB in the end (delta: -113.4 MB). Peak memory consumption was 412.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 515]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((((((((((a7 <= 0 && 1 == a21) && 1 == a20) || (((1 == a7 && !(13 == a8)) && a16 <= 5) && a21 == \old(a21))) || ((1 == a7 && a21 <= 0) && a16 <= 5)) || ((((1 == a7 && a16 <= 5) && 1 == a17) && 1 == a21) && 1 == a20)) || !(\old(a7) <= 0)) || !(1 == \old(a17))) || !(5 <= \old(a16))) || ((1 == a7 && a21 <= 0) && 1 == a20)) || !(1 == \old(a20))) || !(15 <= \old(a8))) || !(\old(a16) <= 5)) || ((a7 <= 0 && a16 <= 5) && 1 == a21)) || ((a7 <= 0 && 15 <= a8) && a21 == \old(a21))) || !(1 == \old(a21)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.3s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 13.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 248 SDtfs, 4747 SDslu, 398 SDs, 0 SdLazy, 7854 SolverSat, 1871 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1023 GetRequests, 915 SyntacticMatches, 1 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3299occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2027 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 102 PreInvPairs, 154 NumberOfFragments, 583 HoareAnnotationTreeSize, 102 FomulaSimplifications, 234792 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 24366 FormulaSimplificationTreeSizeReductionInter, 2.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2120 NumberOfCodeBlocks, 2120 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 2107 ConstructedInterpolants, 0 QuantifiedInterpolants, 1063431 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2339 ConjunctsInSsa, 37 ConjunctsInUnsatCore, 13 InterpolantComputations, 4 PerfectInterpolantSequences, 617/735 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...