/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic DAGSIZE --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 20:09:45,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 20:09:45,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 20:09:45,651 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 20:09:45,651 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 20:09:45,653 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 20:09:45,655 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 20:09:45,667 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 20:09:45,669 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 20:09:45,670 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 20:09:45,671 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 20:09:45,672 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 20:09:45,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 20:09:45,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 20:09:45,676 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 20:09:45,677 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 20:09:45,678 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 20:09:45,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 20:09:45,683 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 20:09:45,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 20:09:45,692 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 20:09:45,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 20:09:45,695 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 20:09:45,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 20:09:45,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 20:09:45,711 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 20:09:45,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 20:09:45,714 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 20:09:45,715 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 20:09:45,735 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 20:09:45,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 20:09:45,738 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 20:09:45,738 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 20:09:45,738 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 20:09:45,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 20:09:45,739 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 20:09:45,739 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 20:09:45,739 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 20:09:45,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 20:09:45,740 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 20:09:45,741 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 20:09:45,741 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 20:09:45,741 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 20:09:45,741 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 20:09:45,742 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 20:09:45,742 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 20:09:45,742 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 20:09:45,742 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 20:09:45,742 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 20:09:45,743 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 20:09:45,743 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:45,743 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 20:09:45,743 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 20:09:45,743 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 20:09:45,744 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 20:09:45,744 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:45,744 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 20:09:45,744 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 20:09:45,744 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> DAGSIZE 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 -> 2 [2020-07-21 20:09:46,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 20:09:46,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 20:09:46,073 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 20:09:46,074 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 20:09:46,074 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 20:09:46,075 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-21 20:09:46,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdc1ed4c/f9fa144d177048338cc4a39fd2484a2a/FLAG20351a1e0 [2020-07-21 20:09:46,729 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 20:09:46,730 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label33.c [2020-07-21 20:09:46,745 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdc1ed4c/f9fa144d177048338cc4a39fd2484a2a/FLAG20351a1e0 [2020-07-21 20:09:46,991 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7fdc1ed4c/f9fa144d177048338cc4a39fd2484a2a [2020-07-21 20:09:47,002 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 20:09:47,005 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 20:09:47,006 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:47,006 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 20:09:47,010 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 20:09:47,011 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:46" (1/1) ... [2020-07-21 20:09:47,014 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@607c40e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47, skipping insertion in model container [2020-07-21 20:09:47,014 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 08:09:46" (1/1) ... [2020-07-21 20:09:47,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 20:09:47,075 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 20:09:47,561 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:47,575 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 20:09:47,721 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 20:09:47,739 INFO L208 MainTranslator]: Completed translation [2020-07-21 20:09:47,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47 WrapperNode [2020-07-21 20:09:47,741 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 20:09:47,742 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 20:09:47,742 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 20:09:47,742 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 20:09:47,754 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,755 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,776 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,777 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,815 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,834 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,838 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... [2020-07-21 20:09:47,845 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 20:09:47,845 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 20:09:47,846 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 20:09:47,846 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 20:09:47,847 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 20:09:47,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 20:09:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 20:09:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 20:09:47,911 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 20:09:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 20:09:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 20:09:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 20:09:47,911 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 20:09:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 20:09:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 20:09:47,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 20:09:48,999 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 20:09:48,999 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 20:09:49,005 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:49 BoogieIcfgContainer [2020-07-21 20:09:49,005 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 20:09:49,007 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 20:09:49,007 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 20:09:49,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 20:09:49,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 08:09:46" (1/3) ... [2020-07-21 20:09:49,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6739525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:49, skipping insertion in model container [2020-07-21 20:09:49,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 08:09:47" (2/3) ... [2020-07-21 20:09:49,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6739525 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 08:09:49, skipping insertion in model container [2020-07-21 20:09:49,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 08:09:49" (3/3) ... [2020-07-21 20:09:49,014 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label33.c [2020-07-21 20:09:49,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 20:09:49,033 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 20:09:49,047 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 20:09:49,072 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 20:09:49,073 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 20:09:49,073 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 20:09:49,073 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 20:09:49,073 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 20:09:49,074 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 20:09:49,074 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 20:09:49,074 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 20:09:49,097 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-21 20:09:49,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2020-07-21 20:09:49,113 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:49,114 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:49,115 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:49,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:49,122 INFO L82 PathProgramCache]: Analyzing trace with hash -421614983, now seen corresponding path program 1 times [2020-07-21 20:09:49,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:49,129 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2110243560] [2020-07-21 20:09:49,130 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:49,351 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:49,352 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:49,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-21 20:09:49,367 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:49,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:49,502 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:49,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2110243560] [2020-07-21 20:09:49,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:49,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:49,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125099707] [2020-07-21 20:09:49,515 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:49,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:49,530 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:49,531 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:49,533 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-21 20:09:50,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:50,438 INFO L93 Difference]: Finished difference Result 615 states and 1053 transitions. [2020-07-21 20:09:50,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:50,441 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 147 [2020-07-21 20:09:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:50,460 INFO L225 Difference]: With dead ends: 615 [2020-07-21 20:09:50,460 INFO L226 Difference]: Without dead ends: 317 [2020-07-21 20:09:50,467 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 145 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:50,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-21 20:09:50,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 317. [2020-07-21 20:09:50,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 317 states. [2020-07-21 20:09:50,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 478 transitions. [2020-07-21 20:09:50,547 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 478 transitions. Word has length 147 [2020-07-21 20:09:50,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:50,548 INFO L479 AbstractCegarLoop]: Abstraction has 317 states and 478 transitions. [2020-07-21 20:09:50,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:50,549 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 478 transitions. [2020-07-21 20:09:50,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-07-21 20:09:50,555 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:50,555 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:50,769 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:50,770 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:50,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:50,771 INFO L82 PathProgramCache]: Analyzing trace with hash -1468794956, now seen corresponding path program 1 times [2020-07-21 20:09:50,771 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:50,771 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [760669770] [2020-07-21 20:09:50,772 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:50,911 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:50,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:50,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 369 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:50,919 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:50,974 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:50,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:50,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [760669770] [2020-07-21 20:09:50,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:50,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:50,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105899391] [2020-07-21 20:09:50,977 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:50,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:50,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:50,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:50,978 INFO L87 Difference]: Start difference. First operand 317 states and 478 transitions. Second operand 3 states. [2020-07-21 20:09:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:51,615 INFO L93 Difference]: Finished difference Result 919 states and 1406 transitions. [2020-07-21 20:09:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:51,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 162 [2020-07-21 20:09:51,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:51,623 INFO L225 Difference]: With dead ends: 919 [2020-07-21 20:09:51,624 INFO L226 Difference]: Without dead ends: 608 [2020-07-21 20:09:51,625 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 161 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:51,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-07-21 20:09:51,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 462. [2020-07-21 20:09:51,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 462 states. [2020-07-21 20:09:51,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 462 states to 462 states and 642 transitions. [2020-07-21 20:09:51,656 INFO L78 Accepts]: Start accepts. Automaton has 462 states and 642 transitions. Word has length 162 [2020-07-21 20:09:51,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:51,667 INFO L479 AbstractCegarLoop]: Abstraction has 462 states and 642 transitions. [2020-07-21 20:09:51,667 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:51,667 INFO L276 IsEmpty]: Start isEmpty. Operand 462 states and 642 transitions. [2020-07-21 20:09:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-07-21 20:09:51,676 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:51,676 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:51,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:51,889 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:51,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:51,890 INFO L82 PathProgramCache]: Analyzing trace with hash -178268063, now seen corresponding path program 1 times [2020-07-21 20:09:51,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:51,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821332873] [2020-07-21 20:09:51,892 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:52,006 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:52,006 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:52,008 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:52,012 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:52,067 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:52,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:52,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821332873] [2020-07-21 20:09:52,069 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:52,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:52,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000325696] [2020-07-21 20:09:52,071 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:52,071 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:52,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:52,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:52,080 INFO L87 Difference]: Start difference. First operand 462 states and 642 transitions. Second operand 3 states. [2020-07-21 20:09:52,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:52,770 INFO L93 Difference]: Finished difference Result 1209 states and 1740 transitions. [2020-07-21 20:09:52,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:52,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 169 [2020-07-21 20:09:52,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:52,776 INFO L225 Difference]: With dead ends: 1209 [2020-07-21 20:09:52,776 INFO L226 Difference]: Without dead ends: 753 [2020-07-21 20:09:52,778 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:52,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 753 states. [2020-07-21 20:09:52,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 753 to 609. [2020-07-21 20:09:52,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 609 states. [2020-07-21 20:09:52,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 609 states to 609 states and 820 transitions. [2020-07-21 20:09:52,811 INFO L78 Accepts]: Start accepts. Automaton has 609 states and 820 transitions. Word has length 169 [2020-07-21 20:09:52,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:52,812 INFO L479 AbstractCegarLoop]: Abstraction has 609 states and 820 transitions. [2020-07-21 20:09:52,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:52,812 INFO L276 IsEmpty]: Start isEmpty. Operand 609 states and 820 transitions. [2020-07-21 20:09:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 20:09:52,816 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:52,816 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:53,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:53,030 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:53,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:53,031 INFO L82 PathProgramCache]: Analyzing trace with hash 1977015017, now seen corresponding path program 1 times [2020-07-21 20:09:53,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:53,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1740880905] [2020-07-21 20:09:53,032 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:53,130 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:53,130 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:53,132 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:53,135 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:53,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:53,192 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:53,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1740880905] [2020-07-21 20:09:53,193 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:53,193 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:53,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011255662] [2020-07-21 20:09:53,194 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:53,194 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:53,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:53,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:53,195 INFO L87 Difference]: Start difference. First operand 609 states and 820 transitions. Second operand 3 states. [2020-07-21 20:09:53,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:53,825 INFO L93 Difference]: Finished difference Result 1505 states and 2105 transitions. [2020-07-21 20:09:53,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:53,826 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 173 [2020-07-21 20:09:53,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:53,833 INFO L225 Difference]: With dead ends: 1505 [2020-07-21 20:09:53,833 INFO L226 Difference]: Without dead ends: 902 [2020-07-21 20:09:53,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:53,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-07-21 20:09:53,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 756. [2020-07-21 20:09:53,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 756 states. [2020-07-21 20:09:53,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 756 states to 756 states and 988 transitions. [2020-07-21 20:09:53,866 INFO L78 Accepts]: Start accepts. Automaton has 756 states and 988 transitions. Word has length 173 [2020-07-21 20:09:53,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:53,866 INFO L479 AbstractCegarLoop]: Abstraction has 756 states and 988 transitions. [2020-07-21 20:09:53,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:53,867 INFO L276 IsEmpty]: Start isEmpty. Operand 756 states and 988 transitions. [2020-07-21 20:09:53,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2020-07-21 20:09:53,870 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:53,871 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:54,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:54,085 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:54,086 INFO L82 PathProgramCache]: Analyzing trace with hash -347277386, now seen corresponding path program 1 times [2020-07-21 20:09:54,087 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:54,087 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1329821859] [2020-07-21 20:09:54,088 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:54,206 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:54,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:54,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:54,212 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:54,272 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:54,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:54,410 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 60 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:54,410 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1329821859] [2020-07-21 20:09:54,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:54,411 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:09:54,411 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993431049] [2020-07-21 20:09:54,412 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:09:54,412 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:54,412 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:09:54,412 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:09:54,413 INFO L87 Difference]: Start difference. First operand 756 states and 988 transitions. Second operand 7 states. [2020-07-21 20:09:55,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:55,410 INFO L93 Difference]: Finished difference Result 1824 states and 2492 transitions. [2020-07-21 20:09:55,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:55,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2020-07-21 20:09:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:55,421 INFO L225 Difference]: With dead ends: 1824 [2020-07-21 20:09:55,421 INFO L226 Difference]: Without dead ends: 1074 [2020-07-21 20:09:55,425 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 390 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:55,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1074 states. [2020-07-21 20:09:55,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1074 to 920. [2020-07-21 20:09:55,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-07-21 20:09:55,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1204 transitions. [2020-07-21 20:09:55,476 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1204 transitions. Word has length 198 [2020-07-21 20:09:55,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:55,476 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1204 transitions. [2020-07-21 20:09:55,476 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:09:55,477 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1204 transitions. [2020-07-21 20:09:55,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-07-21 20:09:55,487 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:55,488 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:55,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:55,703 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:55,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:55,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1272202501, now seen corresponding path program 1 times [2020-07-21 20:09:55,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:55,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1926258402] [2020-07-21 20:09:55,704 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:55,826 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:55,826 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:55,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:09:55,832 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 20:09:55,889 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:09:55,957 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 58 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-07-21 20:09:55,957 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1926258402] [2020-07-21 20:09:55,957 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:09:55,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 20:09:55,958 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1983062493] [2020-07-21 20:09:55,959 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 20:09:55,959 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:55,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 20:09:55,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:09:55,959 INFO L87 Difference]: Start difference. First operand 920 states and 1204 transitions. Second operand 7 states. [2020-07-21 20:09:57,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:57,517 INFO L93 Difference]: Finished difference Result 3366 states and 4682 transitions. [2020-07-21 20:09:57,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 20:09:57,518 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-07-21 20:09:57,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:57,538 INFO L225 Difference]: With dead ends: 3366 [2020-07-21 20:09:57,538 INFO L226 Difference]: Without dead ends: 2452 [2020-07-21 20:09:57,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 408 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:09:57,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2452 states. [2020-07-21 20:09:57,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2452 to 2444. [2020-07-21 20:09:57,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2444 states. [2020-07-21 20:09:57,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2444 states to 2444 states and 3109 transitions. [2020-07-21 20:09:57,646 INFO L78 Accepts]: Start accepts. Automaton has 2444 states and 3109 transitions. Word has length 206 [2020-07-21 20:09:57,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:57,646 INFO L479 AbstractCegarLoop]: Abstraction has 2444 states and 3109 transitions. [2020-07-21 20:09:57,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 20:09:57,647 INFO L276 IsEmpty]: Start isEmpty. Operand 2444 states and 3109 transitions. [2020-07-21 20:09:57,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2020-07-21 20:09:57,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:57,660 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 20:09:57,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:57,874 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:57,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:57,874 INFO L82 PathProgramCache]: Analyzing trace with hash 1421213303, now seen corresponding path program 1 times [2020-07-21 20:09:57,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:57,875 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2023277517] [2020-07-21 20:09:57,875 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:57,979 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:57,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:57,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:09:57,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:09:58,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:58,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2023277517] [2020-07-21 20:09:58,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:58,069 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:09:58,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516784234] [2020-07-21 20:09:58,069 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:09:58,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:58,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:09:58,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:58,070 INFO L87 Difference]: Start difference. First operand 2444 states and 3109 transitions. Second operand 3 states. [2020-07-21 20:09:58,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:09:58,696 INFO L93 Difference]: Finished difference Result 7106 states and 9193 transitions. [2020-07-21 20:09:58,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:09:58,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 205 [2020-07-21 20:09:58,699 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:09:58,725 INFO L225 Difference]: With dead ends: 7106 [2020-07-21 20:09:58,725 INFO L226 Difference]: Without dead ends: 4672 [2020-07-21 20:09:58,736 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:09:58,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4672 states. [2020-07-21 20:09:58,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4672 to 4371. [2020-07-21 20:09:58,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4371 states. [2020-07-21 20:09:58,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4371 states to 4371 states and 5553 transitions. [2020-07-21 20:09:58,895 INFO L78 Accepts]: Start accepts. Automaton has 4371 states and 5553 transitions. Word has length 205 [2020-07-21 20:09:58,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:09:58,895 INFO L479 AbstractCegarLoop]: Abstraction has 4371 states and 5553 transitions. [2020-07-21 20:09:58,895 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:09:58,895 INFO L276 IsEmpty]: Start isEmpty. Operand 4371 states and 5553 transitions. [2020-07-21 20:09:58,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2020-07-21 20:09:58,922 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:09:58,923 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:09:59,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:59,137 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:09:59,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:09:59,137 INFO L82 PathProgramCache]: Analyzing trace with hash 575607827, now seen corresponding path program 1 times [2020-07-21 20:09:59,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:09:59,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103806426] [2020-07-21 20:09:59,138 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:09:59,273 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:09:59,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:09:59,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-21 20:09:59,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:09:59,395 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 81 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2020-07-21 20:09:59,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:09:59,395 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103806426] [2020-07-21 20:09:59,395 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:09:59,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 20:09:59,396 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116669721] [2020-07-21 20:09:59,396 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 20:09:59,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:09:59,397 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 20:09:59,397 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 20:09:59,397 INFO L87 Difference]: Start difference. First operand 4371 states and 5553 transitions. Second operand 5 states. [2020-07-21 20:10:00,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:00,152 INFO L93 Difference]: Finished difference Result 8420 states and 10581 transitions. [2020-07-21 20:10:00,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 20:10:00,158 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 236 [2020-07-21 20:10:00,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:00,179 INFO L225 Difference]: With dead ends: 8420 [2020-07-21 20:10:00,179 INFO L226 Difference]: Without dead ends: 4059 [2020-07-21 20:10:00,193 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 20:10:00,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4059 states. [2020-07-21 20:10:00,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4059 to 2719. [2020-07-21 20:10:00,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2719 states. [2020-07-21 20:10:00,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2719 states to 2719 states and 3192 transitions. [2020-07-21 20:10:00,293 INFO L78 Accepts]: Start accepts. Automaton has 2719 states and 3192 transitions. Word has length 236 [2020-07-21 20:10:00,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:00,293 INFO L479 AbstractCegarLoop]: Abstraction has 2719 states and 3192 transitions. [2020-07-21 20:10:00,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 20:10:00,294 INFO L276 IsEmpty]: Start isEmpty. Operand 2719 states and 3192 transitions. [2020-07-21 20:10:00,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-07-21 20:10:00,303 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:00,304 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:00,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:00,518 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:00,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:00,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1177788655, now seen corresponding path program 1 times [2020-07-21 20:10:00,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:00,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1415980123] [2020-07-21 20:10:00,520 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:00,634 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:00,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:00,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 491 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:00,638 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:00,749 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:00,752 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 108 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 20:10:00,841 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1415980123] [2020-07-21 20:10:00,841 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:00,841 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:00,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62775239] [2020-07-21 20:10:00,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:00,846 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:00,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:00,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:00,847 INFO L87 Difference]: Start difference. First operand 2719 states and 3192 transitions. Second operand 6 states. [2020-07-21 20:10:01,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:01,828 INFO L93 Difference]: Finished difference Result 6464 states and 7579 transitions. [2020-07-21 20:10:01,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 20:10:01,829 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 235 [2020-07-21 20:10:01,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:01,841 INFO L225 Difference]: With dead ends: 6464 [2020-07-21 20:10:01,841 INFO L226 Difference]: Without dead ends: 2572 [2020-07-21 20:10:01,850 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 475 GetRequests, 466 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 20:10:01,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2572 states. [2020-07-21 20:10:01,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2572 to 2418. [2020-07-21 20:10:01,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2418 states. [2020-07-21 20:10:01,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 2728 transitions. [2020-07-21 20:10:01,908 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 2728 transitions. Word has length 235 [2020-07-21 20:10:01,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:01,908 INFO L479 AbstractCegarLoop]: Abstraction has 2418 states and 2728 transitions. [2020-07-21 20:10:01,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:01,909 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 2728 transitions. [2020-07-21 20:10:01,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-07-21 20:10:01,918 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:01,918 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1] [2020-07-21 20:10:02,131 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:02,132 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:02,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:02,133 INFO L82 PathProgramCache]: Analyzing trace with hash -1787452681, now seen corresponding path program 1 times [2020-07-21 20:10:02,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:02,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1003602366] [2020-07-21 20:10:02,135 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:02,296 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:02,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:02,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 546 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 20:10:02,301 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:02,347 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 20:10:02,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 20:10:02,441 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 123 proven. 30 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-07-21 20:10:02,442 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1003602366] [2020-07-21 20:10:02,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 20:10:02,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 20:10:02,442 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467456304] [2020-07-21 20:10:02,443 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 20:10:02,443 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:02,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 20:10:02,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 20:10:02,444 INFO L87 Difference]: Start difference. First operand 2418 states and 2728 transitions. Second operand 6 states. [2020-07-21 20:10:02,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:02,902 INFO L93 Difference]: Finished difference Result 4521 states and 5117 transitions. [2020-07-21 20:10:02,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 20:10:02,903 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 244 [2020-07-21 20:10:02,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:02,911 INFO L225 Difference]: With dead ends: 4521 [2020-07-21 20:10:02,911 INFO L226 Difference]: Without dead ends: 2109 [2020-07-21 20:10:02,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 482 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-21 20:10:02,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2109 states. [2020-07-21 20:10:02,956 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2109 to 2107. [2020-07-21 20:10:02,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2107 states. [2020-07-21 20:10:02,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2107 states to 2107 states and 2329 transitions. [2020-07-21 20:10:02,960 INFO L78 Accepts]: Start accepts. Automaton has 2107 states and 2329 transitions. Word has length 244 [2020-07-21 20:10:02,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:02,960 INFO L479 AbstractCegarLoop]: Abstraction has 2107 states and 2329 transitions. [2020-07-21 20:10:02,961 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 20:10:02,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2107 states and 2329 transitions. [2020-07-21 20:10:02,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 20:10:02,968 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 20:10:02,968 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 20:10:03,183 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:03,184 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 20:10:03,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 20:10:03,184 INFO L82 PathProgramCache]: Analyzing trace with hash -1449891231, now seen corresponding path program 1 times [2020-07-21 20:10:03,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 20:10:03,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1015927425] [2020-07-21 20:10:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:03,357 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 20:10:03,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 20:10:03,359 INFO L263 TraceCheckSpWp]: Trace formula consists of 507 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-21 20:10:03,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 20:10:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-07-21 20:10:03,440 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 20:10:03,440 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1015927425] [2020-07-21 20:10:03,440 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 20:10:03,441 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 20:10:03,441 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642389303] [2020-07-21 20:10:03,441 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 20:10:03,442 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 20:10:03,442 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 20:10:03,442 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:03,442 INFO L87 Difference]: Start difference. First operand 2107 states and 2329 transitions. Second operand 3 states. [2020-07-21 20:10:03,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 20:10:03,973 INFO L93 Difference]: Finished difference Result 4931 states and 5512 transitions. [2020-07-21 20:10:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 20:10:03,976 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-21 20:10:03,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 20:10:03,977 INFO L225 Difference]: With dead ends: 4931 [2020-07-21 20:10:03,977 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 20:10:03,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 20:10:03,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 20:10:03,985 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 20:10:03,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 20:10:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 20:10:03,986 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 253 [2020-07-21 20:10:03,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 20:10:03,986 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 20:10:03,986 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 20:10:03,986 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 20:10:03,986 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 20:10:04,201 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 20:10:04,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 20:10:05,833 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 127 DAG size of output: 71 [2020-07-21 20:10:06,168 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-21 20:10:06,499 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 41 [2020-07-21 20:10:06,504 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:06,505 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a17~0 |old(~a17~0)|) (<= ~a28~0 |old(~a28~0)|) (= ~a19~0 |old(~a19~0)|)) [2020-07-21 20:10:06,505 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:06,505 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,505 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,505 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,506 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,506 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,506 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-21 20:10:06,506 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-21 20:10:06,506 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-21 20:10:06,506 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-21 20:10:06,507 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-21 20:10:06,508 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-21 20:10:06,509 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,510 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 595) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-21 20:10:06,511 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-21 20:10:06,512 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-21 20:10:06,513 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-21 20:10:06,514 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,515 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-21 20:10:06,516 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-21 20:10:06,517 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,518 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-21 20:10:06,519 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,520 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-21 20:10:06,521 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,522 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,523 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse0 (= 1 |old(~a19~0)|)) (.cse5 (<= ~a17~0 |old(~a17~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse5 (<= ~a28~0 8) .cse7)) (.cse8 (not (<= |old(~a17~0)| 7))) (.cse2 (not (<= |old(~a28~0)| 8))) (.cse15 (not (<= |old(~a28~0)| 7))) (.cse10 (not (<= |old(~a25~0)| 0))) (.cse11 (<= ~a25~0 0)) (.cse12 (not (<= 8 |old(~a17~0)|))) (.cse6 (<= ~a28~0 |old(~a28~0)|)) (.cse16 (<= ~a17~0 8)) (.cse9 (not .cse0)) (.cse13 (= 1 ~a11~0)) (.cse4 (not (<= 10 |old(~a28~0)|))) (.cse3 (not (<= |old(~a17~0)| 8))) (.cse14 (not (= 1 |old(~a11~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3) (or .cse4 .cse3 (and .cse5 .cse6 (<= 10 ~a28~0) .cse7)) (or .cse1 .cse2 .cse8) (or .cse9 .cse10 .cse11 .cse4 .cse3) (or .cse2 .cse10 .cse11 .cse8) (or .cse9 .cse12 .cse10 .cse11 .cse3) (or .cse0 (and .cse5 .cse6 .cse13 .cse7) .cse8 .cse14) (or .cse0 (and .cse5 .cse6 .cse11 .cse7) .cse10 .cse8) (or .cse0 .cse13 .cse2 .cse3 .cse14) (or .cse15 .cse6 .cse3) (or .cse15 .cse13 .cse3 .cse14) (or .cse9 .cse13 .cse12 .cse3 .cse14) (or .cse9 (not (<= 11 |old(~a28~0)|)) (<= 11 ~a28~0) .cse3) (or .cse0 .cse10 (and .cse13 .cse6 .cse16 .cse11 .cse7) .cse3 .cse14) (or .cse9 .cse12 (and .cse6 .cse16 (<= 8 ~a17~0) .cse7) .cse3) (or .cse9 .cse13 .cse4 .cse3 .cse14)))) [2020-07-21 20:10:06,523 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,523 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,523 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,523 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-21 20:10:06,523 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-21 20:10:06,523 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-21 20:10:06,524 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-21 20:10:06,525 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-21 20:10:06,526 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,527 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-21 20:10:06,528 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-21 20:10:06,529 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:06,530 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-21 20:10:06,530 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-21 20:10:06,530 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-21 20:10:06,530 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 20:10:06,530 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (<= ~a28~0 7)) [2020-07-21 20:10:06,530 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 20:10:06,530 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 20:10:06,530 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (<= ~a28~0 |old(~a28~0)|) (<= ~a17~0 8) (<= 8 ~a17~0) (<= ~a25~0 0) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a17~0)| 8))) [2020-07-21 20:10:06,531 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0))) (let ((.cse3 (<= ~a17~0 7)) (.cse2 (= 1 ~a11~0)) (.cse1 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse4 (not .cse0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse1 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (and .cse1 (<= 10 ~a28~0)) (and .cse5 .cse3 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse1 .cse5 .cse4)))) [2020-07-21 20:10:06,531 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:06,531 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-21 20:10:06,531 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= 1 ~a19~0))) (let ((.cse3 (<= ~a17~0 7)) (.cse2 (= 1 ~a11~0)) (.cse1 (<= ~a17~0 8)) (.cse5 (<= ~a25~0 0)) (.cse4 (not .cse0))) (or (not (= 1 |old(~a19~0)|)) (and .cse0 .cse1 (<= 8 ~a17~0)) (and .cse1 (<= ~a28~0 8)) (not (<= |old(~a28~0)| 7)) (not (<= |old(~a25~0)| 0)) (not (<= 8 |old(~a17~0)|)) (and .cse2 .cse3 .cse4) (and .cse1 (<= 10 ~a28~0)) (and .cse5 .cse3 .cse4) (not (<= |old(~a17~0)| 8)) (and .cse2 .cse1 .cse5 .cse4)))) [2020-07-21 20:10:06,531 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-21 20:10:06,531 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-21 20:10:06,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 08:10:06 BoogieIcfgContainer [2020-07-21 20:10:06,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 20:10:06,561 INFO L168 Benchmark]: Toolchain (without parser) took 19556.99 ms. Allocated memory was 146.8 MB in the beginning and 510.1 MB in the end (delta: 363.3 MB). Free memory was 103.1 MB in the beginning and 292.0 MB in the end (delta: -188.9 MB). Peak memory consumption was 384.2 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:06,563 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-21 20:10:06,567 INFO L168 Benchmark]: CACSL2BoogieTranslator took 735.17 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.9 MB in the beginning and 172.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:06,572 INFO L168 Benchmark]: Boogie Preprocessor took 103.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:06,574 INFO L168 Benchmark]: RCFGBuilder took 1160.21 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 178.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:06,575 INFO L168 Benchmark]: TraceAbstraction took 17551.44 ms. Allocated memory was 237.0 MB in the beginning and 510.1 MB in the end (delta: 273.2 MB). Free memory was 177.0 MB in the beginning and 292.0 MB in the end (delta: -115.0 MB). Peak memory consumption was 368.0 MB. Max. memory is 7.1 GB. [2020-07-21 20:10:06,583 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 146.8 MB. Free memory was 123.0 MB in the beginning and 122.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 735.17 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.9 MB in the beginning and 172.4 MB in the end (delta: -69.5 MB). Peak memory consumption was 31.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.4 MB in the beginning and 167.0 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1160.21 ms. Allocated memory was 205.5 MB in the beginning and 237.0 MB in the end (delta: 31.5 MB). Free memory was 167.0 MB in the beginning and 178.4 MB in the end (delta: -11.4 MB). Peak memory consumption was 79.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17551.44 ms. Allocated memory was 237.0 MB in the beginning and 510.1 MB in the end (delta: 273.2 MB). Free memory was 177.0 MB in the beginning and 292.0 MB in the end (delta: -115.0 MB). Peak memory consumption was 368.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 595]: 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: 606]: Loop Invariant Derived loop invariant: (((((((((!(1 == \old(a19)) || ((1 == a19 && a17 <= 8) && 8 <= a17)) || (a17 <= 8 && a28 <= 8)) || !(\old(a28) <= 7)) || !(\old(a25) <= 0)) || !(8 <= \old(a17))) || ((1 == a11 && a17 <= 7) && !(1 == a19))) || (a17 <= 8 && 10 <= a28)) || ((a25 <= 0 && a17 <= 7) && !(1 == a19))) || !(\old(a17) <= 8)) || (((1 == a11 && a17 <= 8) && a25 <= 0) && !(1 == a19)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 15.1s, OverallIterations: 11, TraceHistogramMax: 5, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1305 SDtfs, 2564 SDslu, 459 SDs, 0 SdLazy, 6219 SolverSat, 1180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3118 GetRequests, 3075 SyntacticMatches, 5 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4371occurred 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: 0.6s AutomataMinimizationTime, 11 MinimizatonAttempts, 2395 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 174 PreInvPairs, 230 NumberOfFragments, 557 HoareAnnotationTreeSize, 174 FomulaSimplifications, 1871 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2514 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 2228 NumberOfCodeBlocks, 2228 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 3096 ConstructedInterpolants, 0 QuantifiedInterpolants, 1164194 SizeOfPredicates, 14 NumberOfNonLiveVariables, 4915 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 1228/1278 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...