/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:20:59,563 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 17:20:59,566 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 17:20:59,586 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-20 17:20:59,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:20:59,614 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:20:59,617 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:20:59,618 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:20:59,620 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:20:59,621 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:20:59,622 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:20:59,627 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:20:59,631 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:20:59,635 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:20:59,636 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:20:59,637 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:20:59,639 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:20:59,653 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:20:59,683 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:20:59,683 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:20:59,684 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:20:59,684 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:20:59,684 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:20:59,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:20:59,685 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:20:59,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:20:59,685 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:20:59,685 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:20:59,685 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:20:59,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:20:59,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:20:59,686 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:20:59,686 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:20:59,686 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:20:59,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:20:59,687 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:20:59,687 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:20:59,687 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:20:59,687 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:20:59,688 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:20:59,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:20:59,688 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:20:59,688 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:20:59,689 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:20:59,689 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:20:59,689 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:20:59,689 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:20:59,689 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:20:59,996 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:21:00,019 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:21:00,023 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:21:00,029 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:21:00,030 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:21:00,030 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-07-20 17:21:00,107 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10794133e/104c3be703ed48f294a1de6fb2aad90d/FLAG381457c27 [2020-07-20 17:21:00,677 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:21:00,678 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label11.c [2020-07-20 17:21:00,691 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10794133e/104c3be703ed48f294a1de6fb2aad90d/FLAG381457c27 [2020-07-20 17:21:00,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10794133e/104c3be703ed48f294a1de6fb2aad90d [2020-07-20 17:21:00,943 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:21:00,946 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:21:00,947 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:21:00,947 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:21:00,950 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:21:00,951 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:21:00" (1/1) ... [2020-07-20 17:21:00,954 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52590782 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:00, skipping insertion in model container [2020-07-20 17:21:00,954 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:21:00" (1/1) ... [2020-07-20 17:21:00,962 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:21:01,012 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:21:01,574 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:21:01,584 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:21:01,823 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:21:01,839 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:21:01,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01 WrapperNode [2020-07-20 17:21:01,839 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:21:01,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:21:01,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:21:01,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:21:01,852 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,852 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,871 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,871 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,940 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... [2020-07-20 17:21:01,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:21:01,950 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:21:01,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:21:01,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:21:01,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:21:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:21:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:21:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:21:02,007 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:21:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:21:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:21:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:21:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:21:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:21:02,008 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:21:02,009 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:21:03,146 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:21:03,147 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:21:03,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:21:03 BoogieIcfgContainer [2020-07-20 17:21:03,153 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:21:03,155 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:21:03,155 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:21:03,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:21:03,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:21:00" (1/3) ... [2020-07-20 17:21:03,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c000cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:21:03, skipping insertion in model container [2020-07-20 17:21:03,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:21:01" (2/3) ... [2020-07-20 17:21:03,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22c000cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:21:03, skipping insertion in model container [2020-07-20 17:21:03,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:21:03" (3/3) ... [2020-07-20 17:21:03,162 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label11.c [2020-07-20 17:21:03,173 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:21:03,181 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:21:03,196 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:21:03,223 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:21:03,223 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:21:03,223 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:21:03,223 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:21:03,224 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:21:03,224 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:21:03,224 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:21:03,224 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:21:03,248 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-20 17:21:03,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-07-20 17:21:03,261 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:03,263 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] [2020-07-20 17:21:03,263 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:03,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:03,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1377016033, now seen corresponding path program 1 times [2020-07-20 17:21:03,280 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:03,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [672587199] [2020-07-20 17:21:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:03,494 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:03,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:03,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 297 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:21:03,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:03,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:03,612 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:03,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [672587199] [2020-07-20 17:21:03,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:03,614 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:03,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542011701] [2020-07-20 17:21:03,621 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:03,621 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:03,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:03,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:03,639 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 3 states. [2020-07-20 17:21:04,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:04,609 INFO L93 Difference]: Finished difference Result 572 states and 963 transitions. [2020-07-20 17:21:04,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:04,611 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-07-20 17:21:04,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:04,642 INFO L225 Difference]: With dead ends: 572 [2020-07-20 17:21:04,642 INFO L226 Difference]: Without dead ends: 278 [2020-07-20 17:21:04,654 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:04,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2020-07-20 17:21:04,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 278. [2020-07-20 17:21:04,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-20 17:21:04,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 394 transitions. [2020-07-20 17:21:04,774 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 394 transitions. Word has length 115 [2020-07-20 17:21:04,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:04,776 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 394 transitions. [2020-07-20 17:21:04,776 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:04,776 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 394 transitions. [2020-07-20 17:21:04,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-07-20 17:21:04,788 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:04,790 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:21:05,004 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:05,004 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:05,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:05,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1300380632, now seen corresponding path program 1 times [2020-07-20 17:21:05,005 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:05,005 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [102436726] [2020-07-20 17:21:05,006 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:05,120 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:05,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:05,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:05,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:05,203 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:05,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [102436726] [2020-07-20 17:21:05,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:05,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:05,204 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207408210] [2020-07-20 17:21:05,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:05,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:05,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:05,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:05,207 INFO L87 Difference]: Start difference. First operand 278 states and 394 transitions. Second operand 3 states. [2020-07-20 17:21:05,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:05,762 INFO L93 Difference]: Finished difference Result 820 states and 1180 transitions. [2020-07-20 17:21:05,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:05,762 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 125 [2020-07-20 17:21:05,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:05,769 INFO L225 Difference]: With dead ends: 820 [2020-07-20 17:21:05,770 INFO L226 Difference]: Without dead ends: 548 [2020-07-20 17:21:05,771 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:05,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states. [2020-07-20 17:21:05,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 548. [2020-07-20 17:21:05,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 548 states. [2020-07-20 17:21:05,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 704 transitions. [2020-07-20 17:21:05,803 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 704 transitions. Word has length 125 [2020-07-20 17:21:05,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:05,804 INFO L479 AbstractCegarLoop]: Abstraction has 548 states and 704 transitions. [2020-07-20 17:21:05,804 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:05,804 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 704 transitions. [2020-07-20 17:21:05,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-07-20 17:21:05,807 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:05,807 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2020-07-20 17:21:06,020 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:06,021 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:06,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:06,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1823893115, now seen corresponding path program 1 times [2020-07-20 17:21:06,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:06,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [330712526] [2020-07-20 17:21:06,024 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:06,171 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:06,172 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:06,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:06,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:06,232 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:06,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:06,330 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:06,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [330712526] [2020-07-20 17:21:06,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:06,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:21:06,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124975929] [2020-07-20 17:21:06,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:21:06,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:06,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:21:06,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:21:06,334 INFO L87 Difference]: Start difference. First operand 548 states and 704 transitions. Second operand 7 states. [2020-07-20 17:21:08,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:08,083 INFO L93 Difference]: Finished difference Result 2107 states and 2907 transitions. [2020-07-20 17:21:08,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:21:08,084 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 145 [2020-07-20 17:21:08,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:08,097 INFO L225 Difference]: With dead ends: 2107 [2020-07-20 17:21:08,097 INFO L226 Difference]: Without dead ends: 1565 [2020-07-20 17:21:08,099 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 293 GetRequests, 285 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:21:08,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2020-07-20 17:21:08,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1517. [2020-07-20 17:21:08,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1517 states. [2020-07-20 17:21:08,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1517 states to 1517 states and 1946 transitions. [2020-07-20 17:21:08,198 INFO L78 Accepts]: Start accepts. Automaton has 1517 states and 1946 transitions. Word has length 145 [2020-07-20 17:21:08,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:08,199 INFO L479 AbstractCegarLoop]: Abstraction has 1517 states and 1946 transitions. [2020-07-20 17:21:08,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:21:08,199 INFO L276 IsEmpty]: Start isEmpty. Operand 1517 states and 1946 transitions. [2020-07-20 17:21:08,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2020-07-20 17:21:08,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:08,205 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2020-07-20 17:21:08,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:08,420 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:08,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:08,421 INFO L82 PathProgramCache]: Analyzing trace with hash 860485657, now seen corresponding path program 1 times [2020-07-20 17:21:08,422 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:08,423 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1434270781] [2020-07-20 17:21:08,423 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:08,540 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:08,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:08,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:08,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:08,627 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-07-20 17:21:08,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:08,628 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1434270781] [2020-07-20 17:21:08,628 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:08,628 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:08,629 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370961305] [2020-07-20 17:21:08,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:08,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:08,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:08,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:08,631 INFO L87 Difference]: Start difference. First operand 1517 states and 1946 transitions. Second operand 3 states. [2020-07-20 17:21:09,240 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:09,240 INFO L93 Difference]: Finished difference Result 4118 states and 5396 transitions. [2020-07-20 17:21:09,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:09,241 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 150 [2020-07-20 17:21:09,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:09,256 INFO L225 Difference]: With dead ends: 4118 [2020-07-20 17:21:09,256 INFO L226 Difference]: Without dead ends: 2611 [2020-07-20 17:21:09,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 149 GetRequests, 148 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2611 states. [2020-07-20 17:21:09,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2611 to 2476. [2020-07-20 17:21:09,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2020-07-20 17:21:09,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3200 transitions. [2020-07-20 17:21:09,380 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3200 transitions. Word has length 150 [2020-07-20 17:21:09,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:09,381 INFO L479 AbstractCegarLoop]: Abstraction has 2476 states and 3200 transitions. [2020-07-20 17:21:09,381 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:09,381 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3200 transitions. [2020-07-20 17:21:09,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-07-20 17:21:09,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:09,390 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:21:09,603 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:09,604 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:09,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:09,605 INFO L82 PathProgramCache]: Analyzing trace with hash -469327528, now seen corresponding path program 1 times [2020-07-20 17:21:09,605 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:09,605 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1806728217] [2020-07-20 17:21:09,606 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:09,774 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:09,775 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:09,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 382 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:09,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:09,835 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:09,836 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:09,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1806728217] [2020-07-20 17:21:09,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:09,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:09,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881322335] [2020-07-20 17:21:09,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:09,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:09,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:09,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:09,839 INFO L87 Difference]: Start difference. First operand 2476 states and 3200 transitions. Second operand 3 states. [2020-07-20 17:21:10,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:10,512 INFO L93 Difference]: Finished difference Result 7400 states and 9734 transitions. [2020-07-20 17:21:10,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:10,513 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 149 [2020-07-20 17:21:10,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:10,540 INFO L225 Difference]: With dead ends: 7400 [2020-07-20 17:21:10,541 INFO L226 Difference]: Without dead ends: 4934 [2020-07-20 17:21:10,548 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 147 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:10,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4934 states. [2020-07-20 17:21:10,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4934 to 4529. [2020-07-20 17:21:10,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4529 states. [2020-07-20 17:21:10,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4529 states to 4529 states and 5883 transitions. [2020-07-20 17:21:10,723 INFO L78 Accepts]: Start accepts. Automaton has 4529 states and 5883 transitions. Word has length 149 [2020-07-20 17:21:10,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:10,724 INFO L479 AbstractCegarLoop]: Abstraction has 4529 states and 5883 transitions. [2020-07-20 17:21:10,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:10,724 INFO L276 IsEmpty]: Start isEmpty. Operand 4529 states and 5883 transitions. [2020-07-20 17:21:10,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-07-20 17:21:10,739 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:10,739 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:21:10,952 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:10,953 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:10,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:10,953 INFO L82 PathProgramCache]: Analyzing trace with hash 974025645, now seen corresponding path program 1 times [2020-07-20 17:21:10,953 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:10,954 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [694855486] [2020-07-20 17:21:10,954 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:11,075 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:11,075 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:11,077 INFO L263 TraceCheckSpWp]: Trace formula consists of 449 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:11,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:11,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:11,193 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:11,193 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [694855486] [2020-07-20 17:21:11,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:11,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:21:11,194 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960558563] [2020-07-20 17:21:11,195 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:21:11,195 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:11,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:21:11,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:21:11,196 INFO L87 Difference]: Start difference. First operand 4529 states and 5883 transitions. Second operand 6 states. [2020-07-20 17:21:12,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:12,142 INFO L93 Difference]: Finished difference Result 8036 states and 10434 transitions. [2020-07-20 17:21:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:21:12,143 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 165 [2020-07-20 17:21:12,143 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:12,167 INFO L225 Difference]: With dead ends: 8036 [2020-07-20 17:21:12,168 INFO L226 Difference]: Without dead ends: 4857 [2020-07-20 17:21:12,182 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 324 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:21:12,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4857 states. [2020-07-20 17:21:12,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4857 to 4164. [2020-07-20 17:21:12,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4164 states. [2020-07-20 17:21:12,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4164 states to 4164 states and 5383 transitions. [2020-07-20 17:21:12,333 INFO L78 Accepts]: Start accepts. Automaton has 4164 states and 5383 transitions. Word has length 165 [2020-07-20 17:21:12,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:12,334 INFO L479 AbstractCegarLoop]: Abstraction has 4164 states and 5383 transitions. [2020-07-20 17:21:12,334 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:21:12,334 INFO L276 IsEmpty]: Start isEmpty. Operand 4164 states and 5383 transitions. [2020-07-20 17:21:12,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-07-20 17:21:12,350 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:12,350 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, 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] [2020-07-20 17:21:12,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:12,565 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:12,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:12,567 INFO L82 PathProgramCache]: Analyzing trace with hash 1855551297, now seen corresponding path program 1 times [2020-07-20 17:21:12,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:12,568 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2021109471] [2020-07-20 17:21:12,568 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:12,710 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:12,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:12,713 INFO L263 TraceCheckSpWp]: Trace formula consists of 459 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:12,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:12,771 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:12,772 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:12,836 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:21:12,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2021109471] [2020-07-20 17:21:12,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:12,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:21:12,838 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931825055] [2020-07-20 17:21:12,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:21:12,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:12,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:21:12,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:21:12,839 INFO L87 Difference]: Start difference. First operand 4164 states and 5383 transitions. Second operand 7 states. [2020-07-20 17:21:14,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:14,360 INFO L93 Difference]: Finished difference Result 11474 states and 15294 transitions. [2020-07-20 17:21:14,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:21:14,361 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-07-20 17:21:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:14,403 INFO L225 Difference]: With dead ends: 11474 [2020-07-20 17:21:14,404 INFO L226 Difference]: Without dead ends: 7320 [2020-07-20 17:21:14,417 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 345 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:21:14,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7320 states. [2020-07-20 17:21:14,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7320 to 6235. [2020-07-20 17:21:14,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6235 states. [2020-07-20 17:21:14,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6235 states to 6235 states and 7920 transitions. [2020-07-20 17:21:14,606 INFO L78 Accepts]: Start accepts. Automaton has 6235 states and 7920 transitions. Word has length 175 [2020-07-20 17:21:14,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:14,607 INFO L479 AbstractCegarLoop]: Abstraction has 6235 states and 7920 transitions. [2020-07-20 17:21:14,607 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:21:14,607 INFO L276 IsEmpty]: Start isEmpty. Operand 6235 states and 7920 transitions. [2020-07-20 17:21:14,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-07-20 17:21:14,627 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:14,627 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 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] [2020-07-20 17:21:14,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:14,841 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:14,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:14,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1124806757, now seen corresponding path program 1 times [2020-07-20 17:21:14,841 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:14,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592202795] [2020-07-20 17:21:14,842 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:15,058 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:15,058 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:15,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 590 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:15,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:15,132 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-20 17:21:15,132 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:21:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 161 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-07-20 17:21:15,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592202795] [2020-07-20 17:21:15,225 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:21:15,225 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:21:15,226 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566684636] [2020-07-20 17:21:15,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:21:15,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:15,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:21:15,228 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:21:15,228 INFO L87 Difference]: Start difference. First operand 6235 states and 7920 transitions. Second operand 6 states. [2020-07-20 17:21:16,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:16,462 INFO L93 Difference]: Finished difference Result 15476 states and 20900 transitions. [2020-07-20 17:21:16,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-20 17:21:16,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 195 [2020-07-20 17:21:16,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:16,524 INFO L225 Difference]: With dead ends: 15476 [2020-07-20 17:21:16,524 INFO L226 Difference]: Without dead ends: 9251 [2020-07-20 17:21:16,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 386 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:21:16,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9251 states. [2020-07-20 17:21:16,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9251 to 8290. [2020-07-20 17:21:16,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8290 states. [2020-07-20 17:21:16,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8290 states to 8290 states and 10492 transitions. [2020-07-20 17:21:16,804 INFO L78 Accepts]: Start accepts. Automaton has 8290 states and 10492 transitions. Word has length 195 [2020-07-20 17:21:16,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:16,805 INFO L479 AbstractCegarLoop]: Abstraction has 8290 states and 10492 transitions. [2020-07-20 17:21:16,805 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:21:16,806 INFO L276 IsEmpty]: Start isEmpty. Operand 8290 states and 10492 transitions. [2020-07-20 17:21:16,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-20 17:21:16,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:21:16,837 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-20 17:21:17,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:17,051 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:21:17,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:21:17,051 INFO L82 PathProgramCache]: Analyzing trace with hash -604767873, now seen corresponding path program 1 times [2020-07-20 17:21:17,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:21:17,052 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359014581] [2020-07-20 17:21:17,052 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:17,199 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:21:17,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:21:17,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 607 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:21:17,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:21:17,247 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 94 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2020-07-20 17:21:17,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:21:17,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359014581] [2020-07-20 17:21:17,248 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:21:17,248 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:21:17,248 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733137967] [2020-07-20 17:21:17,249 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:21:17,249 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:21:17,249 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:21:17,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:17,251 INFO L87 Difference]: Start difference. First operand 8290 states and 10492 transitions. Second operand 3 states. [2020-07-20 17:21:17,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:21:17,827 INFO L93 Difference]: Finished difference Result 14261 states and 18061 transitions. [2020-07-20 17:21:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:21:17,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 212 [2020-07-20 17:21:17,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:21:17,829 INFO L225 Difference]: With dead ends: 14261 [2020-07-20 17:21:17,829 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:21:17,855 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 211 GetRequests, 210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:21:17,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:21:17,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:21:17,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:21:17,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:21:17,857 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 212 [2020-07-20 17:21:17,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:21:17,857 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:21:17,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:21:17,857 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:21:17,858 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:21:18,072 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:21:18,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:21:18,815 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 57 [2020-07-20 17:21:19,121 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 368 DAG size of output: 57 [2020-07-20 17:21:20,019 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 66 [2020-07-20 17:21:20,279 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2020-07-20 17:21:20,478 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2020-07-20 17:21:20,484 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:21:20,484 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= |old(~a16~0)| ~a16~0)) [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,485 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-20 17:21:20,486 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,487 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-20 17:21:20,488 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 503) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-20 17:21:20,489 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-20 17:21:20,490 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,491 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-20 17:21:20,492 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,493 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-20 17:21:20,494 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,495 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-20 17:21:20,496 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,497 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-20 17:21:20,498 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,499 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-20 17:21:20,500 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse13 (not (<= |old(~a8~0)| 14))) (.cse7 (not (<= |old(~a17~0)| 0))) (.cse6 (not (<= |old(~a20~0)| 0))) (.cse8 (not (<= |old(~a16~0)| 4))) (.cse11 (<= ~a17~0 0)) (.cse12 (<= ~a8~0 14)) (.cse10 (<= ~a20~0 0)) (.cse0 (not (<= 15 |old(~a8~0)|))) (.cse5 (<= ~a7~0 0)) (.cse4 (not (<= |old(~a7~0)| 0))) (.cse9 (not (<= |old(~a8~0)| 13))) (.cse1 (<= ~a8~0 |old(~a8~0)|)) (.cse2 (<= ~a16~0 |old(~a16~0)|)) (.cse3 (<= |old(~a16~0)| ~a16~0))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 15 ~a8~0))) (or .cse4 .cse5 .cse6 .cse7) (or (and (or .cse4 .cse8) (or .cse4 .cse9)) (and .cse1 .cse2 .cse3 .cse5)) (or .cse0 .cse6 .cse10) (or (and .cse2 .cse3 .cse11 .cse12) .cse13 (not (<= 5 |old(~a16~0)|)) .cse7) (or .cse0 .cse11 .cse7) (or (and (or .cse13 .cse6 .cse7) (or .cse9 .cse6 .cse8)) (and .cse2 .cse3 .cse11 .cse10 .cse12) (and .cse2 (<= ~a8~0 13) .cse3 .cse10)) (or .cse0 .cse5 .cse4) (or .cse9 (and .cse1 .cse2 .cse3)))) [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-20 17:21:20,501 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,502 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-20 17:21:20,503 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-20 17:21:20,504 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:21:20,505 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (<= 15 ~a8~0) (<= 5 ~a16~0)) [2020-07-20 17:21:20,505 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:21:20,505 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:21:20,506 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (<= 15 |old(~a8~0)|)) (not (<= |old(~a7~0)| 0)) (and (<= ~a8~0 |old(~a8~0)|) (<= ~a16~0 |old(~a16~0)|) (<= |old(~a16~0)| ~a16~0) (<= ~a7~0 0) (<= 15 ~a8~0)) (not (<= 5 |old(~a16~0)|))) [2020-07-20 17:21:20,506 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:21:20,506 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0))) (or (<= ~a8~0 13) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and (<= ~a7~0 0) (<= ~a16~0 4)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 5 ~a16~0)))) [2020-07-20 17:21:20,506 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-20 17:21:20,506 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-20 17:21:20,506 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse0 (<= ~a17~0 0))) (or (<= ~a8~0 13) (not (<= 15 |old(~a8~0)|)) (and .cse0 (<= ~a20~0 0)) (not (<= |old(~a7~0)| 0)) (<= 15 ~a8~0) (and (<= ~a7~0 0) (<= ~a16~0 4)) (not (<= 5 |old(~a16~0)|)) (and .cse0 (<= 5 ~a16~0)))) [2020-07-20 17:21:20,506 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-20 17:21:20,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:21:20 BoogieIcfgContainer [2020-07-20 17:21:20,528 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:21:20,530 INFO L168 Benchmark]: Toolchain (without parser) took 19585.49 ms. Allocated memory was 146.8 MB in the beginning and 565.7 MB in the end (delta: 418.9 MB). Free memory was 102.8 MB in the beginning and 441.9 MB in the end (delta: -339.1 MB). Peak memory consumption was 388.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:20,533 INFO L168 Benchmark]: CDTParser took 0.48 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-20 17:21:20,534 INFO L168 Benchmark]: CACSL2BoogieTranslator took 892.98 ms. Allocated memory was 146.8 MB in the beginning and 207.1 MB in the end (delta: 60.3 MB). Free memory was 102.6 MB in the beginning and 173.8 MB in the end (delta: -71.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:20,534 INFO L168 Benchmark]: Boogie Preprocessor took 110.22 ms. Allocated memory is still 207.1 MB. Free memory was 173.8 MB in the beginning and 169.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:20,536 INFO L168 Benchmark]: RCFGBuilder took 1202.96 ms. Allocated memory was 207.1 MB in the beginning and 238.0 MB in the end (delta: 30.9 MB). Free memory was 169.0 MB in the beginning and 178.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:20,537 INFO L168 Benchmark]: TraceAbstraction took 17373.80 ms. Allocated memory was 238.0 MB in the beginning and 565.7 MB in the end (delta: 327.7 MB). Free memory was 178.9 MB in the beginning and 441.9 MB in the end (delta: -263.0 MB). Peak memory consumption was 373.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:21:20,544 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 892.98 ms. Allocated memory was 146.8 MB in the beginning and 207.1 MB in the end (delta: 60.3 MB). Free memory was 102.6 MB in the beginning and 173.8 MB in the end (delta: -71.2 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 110.22 ms. Allocated memory is still 207.1 MB. Free memory was 173.8 MB in the beginning and 169.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1202.96 ms. Allocated memory was 207.1 MB in the beginning and 238.0 MB in the end (delta: 30.9 MB). Free memory was 169.0 MB in the beginning and 178.9 MB in the end (delta: -9.9 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 17373.80 ms. Allocated memory was 238.0 MB in the beginning and 565.7 MB in the end (delta: 327.7 MB). Free memory was 178.9 MB in the beginning and 441.9 MB in the end (delta: -263.0 MB). Peak memory consumption was 373.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 503]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 583]: Loop Invariant Derived loop invariant: ((((((a8 <= 13 || !(15 <= \old(a8))) || (a17 <= 0 && a20 <= 0)) || !(\old(a7) <= 0)) || 15 <= a8) || (a7 <= 0 && a16 <= 4)) || !(5 <= \old(a16))) || (a17 <= 0 && 5 <= a16) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 14.8s, OverallIterations: 9, TraceHistogramMax: 5, AutomataDifference: 9.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 874 SDtfs, 1893 SDslu, 279 SDs, 0 SdLazy, 6166 SolverSat, 871 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2120 GetRequests, 2081 SyntacticMatches, 6 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8290occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.1s AutomataMinimizationTime, 9 MinimizatonAttempts, 3327 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 244 PreInvPairs, 366 NumberOfFragments, 332 HoareAnnotationTreeSize, 244 FomulaSimplifications, 23974 FormulaSimplificationTreeSizeReduction, 1.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3243 FormulaSimplificationTreeSizeReductionInter, 1.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 1431 NumberOfCodeBlocks, 1431 NumberOfCodeBlocksAsserted, 36 NumberOfCheckSat, 2098 ConstructedInterpolants, 0 QuantifiedInterpolants, 626230 SizeOfPredicates, 13 NumberOfNonLiveVariables, 4031 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 922/938 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...