/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 01:19:55,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 01:19:55,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 01:19:55,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 01:19:55,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 01:19:55,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 01:19:55,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 01:19:55,843 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 01:19:55,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 01:19:55,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 01:19:55,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 01:19:55,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 01:19:55,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 01:19:55,855 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 01:19:55,857 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 01:19:55,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 01:19:55,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 01:19:55,860 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 01:19:55,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 01:19:55,866 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 01:19:55,871 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 01:19:55,874 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 01:19:55,875 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 01:19:55,875 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 01:19:55,878 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-21 01:19:55,888 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 01:19:55,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 01:19:55,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 01:19:55,891 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 01:19:55,927 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 01:19:55,927 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 01:19:55,929 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 01:19:55,929 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 01:19:55,929 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 01:19:55,929 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 01:19:55,929 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 01:19:55,930 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 01:19:55,930 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 01:19:55,930 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 01:19:55,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 01:19:55,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 01:19:55,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 01:19:55,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 01:19:55,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 01:19:55,933 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 01:19:55,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 01:19:55,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 01:19:55,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 01:19:55,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 01:19:55,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 01:19:55,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:19:55,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 01:19:55,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 01:19:55,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 01:19:55,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 01:19:55,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:55,938 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 01:19:55,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 01:19:55,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 01:19:56,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 01:19:56,255 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 01:19:56,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 01:19:56,260 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 01:19:56,260 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 01:19:56,261 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-07-21 01:19:56,326 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6be1f6a/1e70288129f34ae7880dc4a1bffd6754/FLAGd4b263bc1 [2020-07-21 01:19:56,893 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 01:19:56,893 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label34.c [2020-07-21 01:19:56,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6be1f6a/1e70288129f34ae7880dc4a1bffd6754/FLAGd4b263bc1 [2020-07-21 01:19:57,166 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a6be1f6a/1e70288129f34ae7880dc4a1bffd6754 [2020-07-21 01:19:57,174 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 01:19:57,177 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 01:19:57,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 01:19:57,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 01:19:57,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 01:19:57,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:57,185 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bd08649 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57, skipping insertion in model container [2020-07-21 01:19:57,185 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:57,193 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 01:19:57,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 01:19:57,783 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:19:57,788 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 01:19:57,880 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 01:19:57,897 INFO L208 MainTranslator]: Completed translation [2020-07-21 01:19:57,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57 WrapperNode [2020-07-21 01:19:57,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 01:19:57,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 01:19:57,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 01:19:57,899 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 01:19:57,918 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:57,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:57,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:57,936 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:57,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:58,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:58,012 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... [2020-07-21 01:19:58,022 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 01:19:58,022 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 01:19:58,022 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 01:19:58,023 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 01:19:58,023 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 01:19:58,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 01:19:58,082 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 01:19:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-21 01:19:58,083 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 01:19:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-21 01:19:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 01:19:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 01:19:58,083 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-21 01:19:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 01:19:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 01:19:58,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 01:19:59,245 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 01:19:59,245 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-21 01:19:59,252 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:19:59 BoogieIcfgContainer [2020-07-21 01:19:59,252 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 01:19:59,253 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 01:19:59,254 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 01:19:59,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 01:19:59,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 01:19:57" (1/3) ... [2020-07-21 01:19:59,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a7f8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:19:59, skipping insertion in model container [2020-07-21 01:19:59,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 01:19:57" (2/3) ... [2020-07-21 01:19:59,259 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52a7f8d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 01:19:59, skipping insertion in model container [2020-07-21 01:19:59,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 01:19:59" (3/3) ... [2020-07-21 01:19:59,261 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label34.c [2020-07-21 01:19:59,274 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 01:19:59,283 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 01:19:59,301 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 01:19:59,327 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 01:19:59,328 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 01:19:59,328 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 01:19:59,328 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 01:19:59,328 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 01:19:59,329 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 01:19:59,329 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 01:19:59,329 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 01:19:59,352 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-07-21 01:19:59,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2020-07-21 01:19:59,364 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:19:59,366 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] [2020-07-21 01:19:59,366 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:19:59,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:19:59,373 INFO L82 PathProgramCache]: Analyzing trace with hash -2059241649, now seen corresponding path program 1 times [2020-07-21 01:19:59,382 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:19:59,383 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [196923968] [2020-07-21 01:19:59,383 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:19:59,570 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:19:59,570 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:19:59,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 68 conjunts are in the unsatisfiable core [2020-07-21 01:19:59,597 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:19:59,973 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 31 [2020-07-21 01:20:00,129 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 29 [2020-07-21 01:20:00,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:00,568 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:00,569 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [196923968] [2020-07-21 01:20:00,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:00,570 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-21 01:20:00,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [163946383] [2020-07-21 01:20:00,577 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-21 01:20:00,578 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:00,592 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-21 01:20:00,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:20:00,596 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 11 states. [2020-07-21 01:20:02,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:02,270 INFO L93 Difference]: Finished difference Result 472 states and 791 transitions. [2020-07-21 01:20:02,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:20:02,273 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 111 [2020-07-21 01:20:02,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:02,285 INFO L225 Difference]: With dead ends: 472 [2020-07-21 01:20:02,285 INFO L226 Difference]: Without dead ends: 203 [2020-07-21 01:20:02,292 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-07-21 01:20:02,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2020-07-21 01:20:02,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2020-07-21 01:20:02,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-21 01:20:02,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 275 transitions. [2020-07-21 01:20:02,349 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 275 transitions. Word has length 111 [2020-07-21 01:20:02,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:02,350 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 275 transitions. [2020-07-21 01:20:02,350 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-21 01:20:02,350 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 275 transitions. [2020-07-21 01:20:02,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-07-21 01:20:02,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:02,356 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-21 01:20:02,563 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:02,563 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:02,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:02,564 INFO L82 PathProgramCache]: Analyzing trace with hash -381409516, now seen corresponding path program 1 times [2020-07-21 01:20:02,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:02,565 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [125984723] [2020-07-21 01:20:02,566 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:02,668 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:02,669 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:02,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 48 conjunts are in the unsatisfiable core [2020-07-21 01:20:02,679 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:03,328 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:20:03,331 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 1] term [2020-07-21 01:20:03,332 INFO L501 QuantifierPusher]: Distributing 1 conjuncts over 2 disjuncts [2020-07-21 01:20:03,424 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:03,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:04,144 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 38 [2020-07-21 01:20:04,294 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:20:04,453 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 01:20:04,598 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 01:20:04,603 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 7 conjuncts [2020-07-21 01:20:04,605 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 6 conjuncts [2020-07-21 01:20:04,607 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:20:04,608 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:20:04,609 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,610 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 2 conjuncts [2020-07-21 01:20:04,615 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 5 conjuncts [2020-07-21 01:20:04,616 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 4 conjuncts [2020-07-21 01:20:04,617 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,625 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,627 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,629 INFO L501 QuantifierPusher]: Distributing 14 disjuncts over 3 conjuncts [2020-07-21 01:20:04,630 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:04,631 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:04,632 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:04,636 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,637 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:04,639 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,640 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:04,642 INFO L501 QuantifierPusher]: Distributing 8 disjuncts over 3 conjuncts [2020-07-21 01:20:04,642 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:04,648 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:04,649 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:04,652 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 3 conjuncts [2020-07-21 01:20:04,653 INFO L501 QuantifierPusher]: Distributing 7 disjuncts over 2 conjuncts [2020-07-21 01:20:05,243 WARN L193 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 37 [2020-07-21 01:20:05,247 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 8, 6, 7, 1] term [2020-07-21 01:20:05,247 INFO L501 QuantifierPusher]: Distributing 6 disjuncts over 2 conjuncts [2020-07-21 01:20:05,312 INFO L501 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-07-21 01:20:05,313 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:05,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:05,434 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:05,610 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [125984723] [2020-07-21 01:20:05,611 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:05,611 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 15] total 25 [2020-07-21 01:20:05,611 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363386259] [2020-07-21 01:20:05,614 INFO L459 AbstractCegarLoop]: Interpolant automaton has 25 states [2020-07-21 01:20:05,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:05,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2020-07-21 01:20:05,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-21 01:20:05,625 INFO L87 Difference]: Start difference. First operand 203 states and 275 transitions. Second operand 25 states. [2020-07-21 01:20:06,672 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 36 [2020-07-21 01:20:07,235 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33 [2020-07-21 01:20:07,534 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 42 [2020-07-21 01:20:08,023 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 39 [2020-07-21 01:20:08,254 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 39 [2020-07-21 01:20:08,743 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2020-07-21 01:20:11,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:11,185 INFO L93 Difference]: Finished difference Result 588 states and 878 transitions. [2020-07-21 01:20:11,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-07-21 01:20:11,185 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 119 [2020-07-21 01:20:11,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:11,198 INFO L225 Difference]: With dead ends: 588 [2020-07-21 01:20:11,199 INFO L226 Difference]: Without dead ends: 451 [2020-07-21 01:20:11,202 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 259 GetRequests, 210 SyntacticMatches, 4 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=551, Invalid=1611, Unknown=0, NotChecked=0, Total=2162 [2020-07-21 01:20:11,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2020-07-21 01:20:11,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 417. [2020-07-21 01:20:11,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 417 states. [2020-07-21 01:20:11,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 417 states to 417 states and 548 transitions. [2020-07-21 01:20:11,253 INFO L78 Accepts]: Start accepts. Automaton has 417 states and 548 transitions. Word has length 119 [2020-07-21 01:20:11,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:11,254 INFO L479 AbstractCegarLoop]: Abstraction has 417 states and 548 transitions. [2020-07-21 01:20:11,254 INFO L480 AbstractCegarLoop]: Interpolant automaton has 25 states. [2020-07-21 01:20:11,254 INFO L276 IsEmpty]: Start isEmpty. Operand 417 states and 548 transitions. [2020-07-21 01:20:11,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-07-21 01:20:11,258 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:11,259 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:11,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:11,473 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:11,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:11,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1335140182, now seen corresponding path program 1 times [2020-07-21 01:20:11,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:11,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [171523298] [2020-07-21 01:20:11,476 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:11,575 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:20:11,575 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:11,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:11,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:11,605 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:11,605 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:11,606 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [171523298] [2020-07-21 01:20:11,606 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:11,606 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:20:11,606 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987627206] [2020-07-21 01:20:11,607 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:20:11,607 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:11,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:20:11,608 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:11,608 INFO L87 Difference]: Start difference. First operand 417 states and 548 transitions. Second operand 3 states. [2020-07-21 01:20:12,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:12,167 INFO L93 Difference]: Finished difference Result 1042 states and 1433 transitions. [2020-07-21 01:20:12,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:20:12,168 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2020-07-21 01:20:12,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:12,174 INFO L225 Difference]: With dead ends: 1042 [2020-07-21 01:20:12,175 INFO L226 Difference]: Without dead ends: 691 [2020-07-21 01:20:12,176 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:12,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 691 states. [2020-07-21 01:20:12,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 691 to 691. [2020-07-21 01:20:12,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 691 states. [2020-07-21 01:20:12,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 691 states to 691 states and 897 transitions. [2020-07-21 01:20:12,214 INFO L78 Accepts]: Start accepts. Automaton has 691 states and 897 transitions. Word has length 122 [2020-07-21 01:20:12,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:12,215 INFO L479 AbstractCegarLoop]: Abstraction has 691 states and 897 transitions. [2020-07-21 01:20:12,215 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:20:12,215 INFO L276 IsEmpty]: Start isEmpty. Operand 691 states and 897 transitions. [2020-07-21 01:20:12,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2020-07-21 01:20:12,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:12,220 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:12,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:12,433 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:12,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:12,434 INFO L82 PathProgramCache]: Analyzing trace with hash 2062814711, now seen corresponding path program 1 times [2020-07-21 01:20:12,434 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:12,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [755209572] [2020-07-21 01:20:12,435 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:12,564 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 01:20:12,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:12,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 308 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:20:12,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:12,618 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:12,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:12,812 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:12,862 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:12,863 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:20:12,863 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:12,864 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:12,864 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:12,865 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 29 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 01:20:12,973 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [755209572] [2020-07-21 01:20:12,973 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:12,973 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:12,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846051171] [2020-07-21 01:20:12,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:12,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:12,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:12,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:12,975 INFO L87 Difference]: Start difference. First operand 691 states and 897 transitions. Second operand 7 states. [2020-07-21 01:20:14,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:14,356 INFO L93 Difference]: Finished difference Result 1933 states and 2552 transitions. [2020-07-21 01:20:14,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-21 01:20:14,358 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 137 [2020-07-21 01:20:14,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:14,372 INFO L225 Difference]: With dead ends: 1933 [2020-07-21 01:20:14,373 INFO L226 Difference]: Without dead ends: 1169 [2020-07-21 01:20:14,381 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 279 GetRequests, 270 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 01:20:14,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1169 states. [2020-07-21 01:20:14,444 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1169 to 1106. [2020-07-21 01:20:14,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1106 states. [2020-07-21 01:20:14,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1106 states to 1106 states and 1302 transitions. [2020-07-21 01:20:14,450 INFO L78 Accepts]: Start accepts. Automaton has 1106 states and 1302 transitions. Word has length 137 [2020-07-21 01:20:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:14,452 INFO L479 AbstractCegarLoop]: Abstraction has 1106 states and 1302 transitions. [2020-07-21 01:20:14,452 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 1106 states and 1302 transitions. [2020-07-21 01:20:14,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-21 01:20:14,464 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:14,464 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-07-21 01:20:14,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:14,680 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:14,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:14,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1957319429, now seen corresponding path program 1 times [2020-07-21 01:20:14,681 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:14,681 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1481363208] [2020-07-21 01:20:14,681 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:14,783 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:14,784 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:14,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 356 conjuncts, 29 conjunts are in the unsatisfiable core [2020-07-21 01:20:14,790 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:14,855 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 01:20:14,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:15,066 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 01:20:15,111 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:15,111 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:15,112 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:15,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:15,113 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:15,114 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:15,114 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:15,278 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-07-21 01:20:15,278 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1481363208] [2020-07-21 01:20:15,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-21 01:20:15,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2020-07-21 01:20:15,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176433149] [2020-07-21 01:20:15,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 01:20:15,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:15,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 01:20:15,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:15,280 INFO L87 Difference]: Start difference. First operand 1106 states and 1302 transitions. Second operand 5 states. [2020-07-21 01:20:16,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:16,121 INFO L93 Difference]: Finished difference Result 3121 states and 3747 transitions. [2020-07-21 01:20:16,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 01:20:16,122 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-07-21 01:20:16,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:16,131 INFO L225 Difference]: With dead ends: 3121 [2020-07-21 01:20:16,131 INFO L226 Difference]: Without dead ends: 1944 [2020-07-21 01:20:16,135 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 334 GetRequests, 326 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:20:16,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1944 states. [2020-07-21 01:20:16,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1944 to 1944. [2020-07-21 01:20:16,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1944 states. [2020-07-21 01:20:16,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1944 states to 1944 states and 2224 transitions. [2020-07-21 01:20:16,199 INFO L78 Accepts]: Start accepts. Automaton has 1944 states and 2224 transitions. Word has length 167 [2020-07-21 01:20:16,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:16,199 INFO L479 AbstractCegarLoop]: Abstraction has 1944 states and 2224 transitions. [2020-07-21 01:20:16,199 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 01:20:16,200 INFO L276 IsEmpty]: Start isEmpty. Operand 1944 states and 2224 transitions. [2020-07-21 01:20:16,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-07-21 01:20:16,205 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:16,206 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:16,419 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:16,420 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:16,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:16,421 INFO L82 PathProgramCache]: Analyzing trace with hash 597040064, now seen corresponding path program 1 times [2020-07-21 01:20:16,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:16,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2024941913] [2020-07-21 01:20:16,422 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:16,531 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:16,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:16,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 414 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 01:20:16,536 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:16,562 INFO L320 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 6, 1] term [2020-07-21 01:20:16,563 INFO L501 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-21 01:20:16,620 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 76 proven. 6 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:20:16,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:16,832 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 39 [2020-07-21 01:20:16,888 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,889 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,890 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[3, 2, 1] term [2020-07-21 01:20:16,891 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:16,891 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:16,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,893 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,893 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,894 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,894 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:16,895 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,927 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:16,986 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:16,988 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 3 conjuncts [2020-07-21 01:20:17,154 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 78 proven. 13 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-07-21 01:20:17,155 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2024941913] [2020-07-21 01:20:17,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:17,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 6] total 8 [2020-07-21 01:20:17,155 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58813460] [2020-07-21 01:20:17,156 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:20:17,156 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:17,157 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:20:17,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:20:17,157 INFO L87 Difference]: Start difference. First operand 1944 states and 2224 transitions. Second operand 8 states. [2020-07-21 01:20:18,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:18,138 INFO L93 Difference]: Finished difference Result 4944 states and 5813 transitions. [2020-07-21 01:20:18,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:20:18,138 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2020-07-21 01:20:18,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:18,155 INFO L225 Difference]: With dead ends: 4944 [2020-07-21 01:20:18,156 INFO L226 Difference]: Without dead ends: 2927 [2020-07-21 01:20:18,161 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 371 GetRequests, 361 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:20:18,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2927 states. [2020-07-21 01:20:18,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2927 to 2639. [2020-07-21 01:20:18,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2639 states. [2020-07-21 01:20:18,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3047 transitions. [2020-07-21 01:20:18,248 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3047 transitions. Word has length 184 [2020-07-21 01:20:18,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:18,249 INFO L479 AbstractCegarLoop]: Abstraction has 2639 states and 3047 transitions. [2020-07-21 01:20:18,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:20:18,250 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3047 transitions. [2020-07-21 01:20:18,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2020-07-21 01:20:18,260 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:18,260 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:18,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:18,475 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:18,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:18,475 INFO L82 PathProgramCache]: Analyzing trace with hash 444383594, now seen corresponding path program 1 times [2020-07-21 01:20:18,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:18,476 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064988816] [2020-07-21 01:20:18,476 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:18,589 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:18,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:18,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:18,595 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:18,639 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 154 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:20:18,639 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:18,726 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 141 proven. 15 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-07-21 01:20:18,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064988816] [2020-07-21 01:20:18,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:18,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:18,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11455630] [2020-07-21 01:20:18,728 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:18,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:18,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:18,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:18,729 INFO L87 Difference]: Start difference. First operand 2639 states and 3047 transitions. Second operand 7 states. [2020-07-21 01:20:19,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:19,885 INFO L93 Difference]: Finished difference Result 5623 states and 6534 transitions. [2020-07-21 01:20:19,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 01:20:19,890 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 218 [2020-07-21 01:20:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:19,908 INFO L225 Difference]: With dead ends: 5623 [2020-07-21 01:20:19,908 INFO L226 Difference]: Without dead ends: 3050 [2020-07-21 01:20:19,918 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 433 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2020-07-21 01:20:19,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2020-07-21 01:20:19,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 2093. [2020-07-21 01:20:19,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2093 states. [2020-07-21 01:20:19,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2093 states to 2093 states and 2375 transitions. [2020-07-21 01:20:19,996 INFO L78 Accepts]: Start accepts. Automaton has 2093 states and 2375 transitions. Word has length 218 [2020-07-21 01:20:19,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:19,997 INFO L479 AbstractCegarLoop]: Abstraction has 2093 states and 2375 transitions. [2020-07-21 01:20:19,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:19,997 INFO L276 IsEmpty]: Start isEmpty. Operand 2093 states and 2375 transitions. [2020-07-21 01:20:20,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2020-07-21 01:20:20,004 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:20,004 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:20:20,218 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:20,219 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:20,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:20,219 INFO L82 PathProgramCache]: Analyzing trace with hash -2091809578, now seen corresponding path program 1 times [2020-07-21 01:20:20,220 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:20,220 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1535853546] [2020-07-21 01:20:20,220 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:20,349 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:20,350 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:20,352 INFO L263 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:20:20,356 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:20,429 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:20:20,430 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:20,623 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2020-07-21 01:20:20,665 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:20,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:20,666 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:20,667 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[4, 2, 1] term [2020-07-21 01:20:20,667 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:20,667 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:20,667 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:20,812 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-07-21 01:20:20,812 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1535853546] [2020-07-21 01:20:20,812 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:20,812 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:20,813 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830493638] [2020-07-21 01:20:20,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:20,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:20,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:20,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:20,814 INFO L87 Difference]: Start difference. First operand 2093 states and 2375 transitions. Second operand 7 states. [2020-07-21 01:20:22,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:22,136 INFO L93 Difference]: Finished difference Result 5504 states and 6329 transitions. [2020-07-21 01:20:22,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:20:22,139 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 240 [2020-07-21 01:20:22,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:22,152 INFO L225 Difference]: With dead ends: 5504 [2020-07-21 01:20:22,152 INFO L226 Difference]: Without dead ends: 3477 [2020-07-21 01:20:22,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 489 GetRequests, 478 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:20:22,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3477 states. [2020-07-21 01:20:22,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3477 to 3336. [2020-07-21 01:20:22,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2020-07-21 01:20:22,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 3791 transitions. [2020-07-21 01:20:22,235 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 3791 transitions. Word has length 240 [2020-07-21 01:20:22,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:22,236 INFO L479 AbstractCegarLoop]: Abstraction has 3336 states and 3791 transitions. [2020-07-21 01:20:22,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:22,236 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 3791 transitions. [2020-07-21 01:20:22,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 254 [2020-07-21 01:20:22,245 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:22,246 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:20:22,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:22,460 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:22,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:22,460 INFO L82 PathProgramCache]: Analyzing trace with hash -1503547973, now seen corresponding path program 1 times [2020-07-21 01:20:22,461 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:22,461 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557048723] [2020-07-21 01:20:22,461 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:22,630 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 01:20:22,630 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:22,632 INFO L263 TraceCheckSpWp]: Trace formula consists of 640 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:22,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:22,730 INFO L134 CoverageAnalysis]: Checked inductivity of 250 backedges. 139 proven. 0 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2020-07-21 01:20:22,730 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 01:20:22,731 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557048723] [2020-07-21 01:20:22,731 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 01:20:22,731 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 01:20:22,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091262056] [2020-07-21 01:20:22,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 01:20:22,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:22,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 01:20:22,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:22,733 INFO L87 Difference]: Start difference. First operand 3336 states and 3791 transitions. Second operand 3 states. [2020-07-21 01:20:23,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:23,300 INFO L93 Difference]: Finished difference Result 6741 states and 7659 transitions. [2020-07-21 01:20:23,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 01:20:23,301 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 253 [2020-07-21 01:20:23,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:23,321 INFO L225 Difference]: With dead ends: 6741 [2020-07-21 01:20:23,321 INFO L226 Difference]: Without dead ends: 3471 [2020-07-21 01:20:23,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 251 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 01:20:23,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3471 states. [2020-07-21 01:20:23,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3471 to 3336. [2020-07-21 01:20:23,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3336 states. [2020-07-21 01:20:23,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3336 states to 3336 states and 3788 transitions. [2020-07-21 01:20:23,430 INFO L78 Accepts]: Start accepts. Automaton has 3336 states and 3788 transitions. Word has length 253 [2020-07-21 01:20:23,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:23,431 INFO L479 AbstractCegarLoop]: Abstraction has 3336 states and 3788 transitions. [2020-07-21 01:20:23,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 01:20:23,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3336 states and 3788 transitions. [2020-07-21 01:20:23,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 290 [2020-07-21 01:20:23,449 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:23,450 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-21 01:20:23,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:23,665 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:23,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:23,666 INFO L82 PathProgramCache]: Analyzing trace with hash 1542218823, now seen corresponding path program 1 times [2020-07-21 01:20:23,666 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:23,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [630789] [2020-07-21 01:20:23,666 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:23,870 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:23,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:23,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:23,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:23,940 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-21 01:20:23,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:24,079 INFO L134 CoverageAnalysis]: Checked inductivity of 419 backedges. 235 proven. 2 refuted. 0 times theorem prover too weak. 182 trivial. 0 not checked. [2020-07-21 01:20:24,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [630789] [2020-07-21 01:20:24,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:24,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:20:24,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152690481] [2020-07-21 01:20:24,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:20:24,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:24,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:20:24,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:20:24,082 INFO L87 Difference]: Start difference. First operand 3336 states and 3788 transitions. Second operand 6 states. [2020-07-21 01:20:24,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:24,913 INFO L93 Difference]: Finished difference Result 7027 states and 8005 transitions. [2020-07-21 01:20:24,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:20:24,914 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 289 [2020-07-21 01:20:24,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:24,928 INFO L225 Difference]: With dead ends: 7027 [2020-07-21 01:20:24,929 INFO L226 Difference]: Without dead ends: 3757 [2020-07-21 01:20:24,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 583 GetRequests, 574 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:20:24,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3757 states. [2020-07-21 01:20:25,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3757 to 3612. [2020-07-21 01:20:25,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3612 states. [2020-07-21 01:20:25,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3612 states to 3612 states and 4042 transitions. [2020-07-21 01:20:25,006 INFO L78 Accepts]: Start accepts. Automaton has 3612 states and 4042 transitions. Word has length 289 [2020-07-21 01:20:25,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:25,007 INFO L479 AbstractCegarLoop]: Abstraction has 3612 states and 4042 transitions. [2020-07-21 01:20:25,007 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:20:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 3612 states and 4042 transitions. [2020-07-21 01:20:25,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 336 [2020-07-21 01:20:25,020 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:25,021 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-21 01:20:25,233 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:25,234 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:25,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:25,234 INFO L82 PathProgramCache]: Analyzing trace with hash 606680104, now seen corresponding path program 1 times [2020-07-21 01:20:25,235 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:25,235 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1308476915] [2020-07-21 01:20:25,235 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:25,406 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 01:20:25,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:25,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 568 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-21 01:20:25,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 427 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-07-21 01:20:25,487 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:25,605 INFO L320 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 1] term [2020-07-21 01:20:25,606 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 01:20:25,819 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 306 proven. 29 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-07-21 01:20:25,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1308476915] [2020-07-21 01:20:25,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:25,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-21 01:20:25,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398432098] [2020-07-21 01:20:25,820 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-21 01:20:25,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:25,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-21 01:20:25,821 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-21 01:20:25,821 INFO L87 Difference]: Start difference. First operand 3612 states and 4042 transitions. Second operand 7 states. [2020-07-21 01:20:27,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:27,117 INFO L93 Difference]: Finished difference Result 6890 states and 7684 transitions. [2020-07-21 01:20:27,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-21 01:20:27,118 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 335 [2020-07-21 01:20:27,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:27,131 INFO L225 Difference]: With dead ends: 6890 [2020-07-21 01:20:27,132 INFO L226 Difference]: Without dead ends: 3201 [2020-07-21 01:20:27,140 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 668 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:20:27,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3201 states. [2020-07-21 01:20:27,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3201 to 3197. [2020-07-21 01:20:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3197 states. [2020-07-21 01:20:27,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3197 states to 3197 states and 3425 transitions. [2020-07-21 01:20:27,203 INFO L78 Accepts]: Start accepts. Automaton has 3197 states and 3425 transitions. Word has length 335 [2020-07-21 01:20:27,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:27,204 INFO L479 AbstractCegarLoop]: Abstraction has 3197 states and 3425 transitions. [2020-07-21 01:20:27,204 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-21 01:20:27,204 INFO L276 IsEmpty]: Start isEmpty. Operand 3197 states and 3425 transitions. [2020-07-21 01:20:27,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 367 [2020-07-21 01:20:27,216 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:27,217 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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] [2020-07-21 01:20:27,430 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:27,431 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:27,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:27,432 INFO L82 PathProgramCache]: Analyzing trace with hash -984953910, now seen corresponding path program 1 times [2020-07-21 01:20:27,432 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:27,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1570970894] [2020-07-21 01:20:27,432 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 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:27,633 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:27,633 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:27,635 INFO L263 TraceCheckSpWp]: Trace formula consists of 809 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:27,641 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:27,735 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 490 proven. 2 refuted. 0 times theorem prover too weak. 245 trivial. 0 not checked. [2020-07-21 01:20:27,735 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:27,883 INFO L134 CoverageAnalysis]: Checked inductivity of 737 backedges. 443 proven. 13 refuted. 0 times theorem prover too weak. 281 trivial. 0 not checked. [2020-07-21 01:20:27,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1570970894] [2020-07-21 01:20:27,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:27,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-21 01:20:27,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552871057] [2020-07-21 01:20:27,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 01:20:27,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:27,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 01:20:27,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-21 01:20:27,886 INFO L87 Difference]: Start difference. First operand 3197 states and 3425 transitions. Second operand 6 states. [2020-07-21 01:20:28,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:28,740 INFO L93 Difference]: Finished difference Result 6336 states and 6796 transitions. [2020-07-21 01:20:28,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 01:20:28,740 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 366 [2020-07-21 01:20:28,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:28,749 INFO L225 Difference]: With dead ends: 6336 [2020-07-21 01:20:28,749 INFO L226 Difference]: Without dead ends: 2429 [2020-07-21 01:20:28,757 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 737 GetRequests, 728 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-21 01:20:28,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2429 states. [2020-07-21 01:20:28,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2429 to 2288. [2020-07-21 01:20:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2288 states. [2020-07-21 01:20:28,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2288 states to 2288 states and 2411 transitions. [2020-07-21 01:20:28,800 INFO L78 Accepts]: Start accepts. Automaton has 2288 states and 2411 transitions. Word has length 366 [2020-07-21 01:20:28,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:28,801 INFO L479 AbstractCegarLoop]: Abstraction has 2288 states and 2411 transitions. [2020-07-21 01:20:28,801 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 01:20:28,801 INFO L276 IsEmpty]: Start isEmpty. Operand 2288 states and 2411 transitions. [2020-07-21 01:20:28,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-07-21 01:20:28,809 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 01:20:28,810 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 01:20:29,024 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:29,025 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 01:20:29,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 01:20:29,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1408173018, now seen corresponding path program 2 times [2020-07-21 01:20:29,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 01:20:29,026 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1496937736] [2020-07-21 01:20:29,026 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 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:29,247 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 01:20:29,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 01:20:29,249 INFO L263 TraceCheckSpWp]: Trace formula consists of 817 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 01:20:29,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 01:20:29,323 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 583 proven. 2 refuted. 0 times theorem prover too weak. 184 trivial. 0 not checked. [2020-07-21 01:20:29,324 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 01:20:29,517 INFO L134 CoverageAnalysis]: Checked inductivity of 769 backedges. 429 proven. 62 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2020-07-21 01:20:29,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1496937736] [2020-07-21 01:20:29,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 01:20:29,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 01:20:29,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314748943] [2020-07-21 01:20:29,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 01:20:29,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 01:20:29,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 01:20:29,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-21 01:20:29,520 INFO L87 Difference]: Start difference. First operand 2288 states and 2411 transitions. Second operand 8 states. [2020-07-21 01:20:30,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 01:20:30,733 INFO L93 Difference]: Finished difference Result 3946 states and 4150 transitions. [2020-07-21 01:20:30,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-21 01:20:30,734 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 380 [2020-07-21 01:20:30,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 01:20:30,735 INFO L225 Difference]: With dead ends: 3946 [2020-07-21 01:20:30,735 INFO L226 Difference]: Without dead ends: 0 [2020-07-21 01:20:30,743 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 767 GetRequests, 757 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2020-07-21 01:20:30,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-21 01:20:30,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-21 01:20:30,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-21 01:20:30,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-21 01:20:30,744 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 380 [2020-07-21 01:20:30,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 01:20:30,744 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-21 01:20:30,744 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 01:20:30,745 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-21 01:20:30,745 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-21 01:20:30,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 01:20:30,961 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-21 01:20:31,634 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 163 [2020-07-21 01:20:31,812 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 153 [2020-07-21 01:20:35,526 WARN L193 SmtUtils]: Spent 3.58 s on a formula simplification. DAG size of input: 256 DAG size of output: 144 [2020-07-21 01:20:37,186 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 179 DAG size of output: 100 [2020-07-21 01:20:38,698 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 169 DAG size of output: 90 [2020-07-21 01:20:38,703 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:20:38,703 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)|) (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (<= |old(~a16~0)| ~a16~0) (= ~a20~0 |old(~a20~0)|) (= ~a21~0 |old(~a21~0)|)) [2020-07-21 01:20:38,703 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L333(lines 333 390) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L102(lines 102 390) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L565-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L532-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L499-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L466-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,704 INFO L268 CegarLoopResult]: For program point L433-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L400-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L268(lines 268 390) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L136(lines 136 390) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L566(line 566) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L533(line 533) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L500(line 500) no Hoare annotation was computed. [2020-07-21 01:20:38,705 INFO L268 CegarLoopResult]: For program point L467(line 467) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L434(line 434) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L401(line 401) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L203(lines 203 390) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L72(lines 72 390) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L568-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L535-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,706 INFO L268 CegarLoopResult]: For program point L502-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L469-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L436-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L403-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L337(lines 337 390) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L238(lines 238 390) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L569(line 569) no Hoare annotation was computed. [2020-07-21 01:20:38,707 INFO L268 CegarLoopResult]: For program point L536(line 536) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L503(line 503) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L470(line 470) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L437(line 437) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L404(line 404) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L173(lines 173 390) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L140(lines 140 390) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point L372(lines 372 390) no Hoare annotation was computed. [2020-07-21 01:20:38,708 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 491) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L306(lines 306 390) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L273(lines 273 390) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L108(lines 108 390) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L571-1(lines 571 573) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L538-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L505-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L472-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L439-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,709 INFO L268 CegarLoopResult]: For program point L406-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L208(lines 208 390) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L43(lines 43 390) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L572(line 572) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L539(line 539) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L506(line 506) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L473(line 473) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L440(line 440) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L407(line 407) no Hoare annotation was computed. [2020-07-21 01:20:38,710 INFO L268 CegarLoopResult]: For program point L144(lines 144 390) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L541-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L508-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L475-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L442-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L409-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L178(lines 178 390) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L542(line 542) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L509(line 509) no Hoare annotation was computed. [2020-07-21 01:20:38,711 INFO L268 CegarLoopResult]: For program point L476(line 476) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L443(line 443) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L410(line 410) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L377(lines 377 390) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L278(lines 278 390) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L245(lines 245 390) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L80(lines 80 390) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L345(lines 345 390) no Hoare annotation was computed. [2020-07-21 01:20:38,712 INFO L268 CegarLoopResult]: For program point L312(lines 312 390) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L114(lines 114 390) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L544-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L511-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L478-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L445-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L412-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L214(lines 214 390) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L148(lines 148 390) no Hoare annotation was computed. [2020-07-21 01:20:38,713 INFO L268 CegarLoopResult]: For program point L49(lines 49 390) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L545(line 545) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L512(line 512) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L479(line 479) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L446(line 446) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L413(line 413) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L84(lines 84 390) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L547-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L514-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L481-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L448-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L382(lines 382 390) no Hoare annotation was computed. [2020-07-21 01:20:38,714 INFO L268 CegarLoopResult]: For program point L415-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L316(lines 316 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L250(lines 250 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L548(line 548) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L515(line 515) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L482(line 482) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L449(line 449) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L416(line 416) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L218(lines 218 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L152(lines 152 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L119(lines 119 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L318(lines 318 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L186(lines 186 390) no Hoare annotation was computed. [2020-07-21 01:20:38,715 INFO L268 CegarLoopResult]: For program point L54(lines 54 390) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L550-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L517-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L484-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L451-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L418-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L286(lines 286 390) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L551(line 551) no Hoare annotation was computed. [2020-07-21 01:20:38,716 INFO L268 CegarLoopResult]: For program point L518(line 518) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L485(line 485) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L452(line 452) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L419(line 419) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L353(lines 353 390) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L189(lines 189 390) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L553-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L520-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L487-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,717 INFO L268 CegarLoopResult]: For program point L454-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L421-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L355(lines 355 390) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L256(lines 256 390) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L223(lines 223 390) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L124(lines 124 390) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L554(line 554) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L521(line 521) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L488(line 488) no Hoare annotation was computed. [2020-07-21 01:20:38,718 INFO L268 CegarLoopResult]: For program point L455(line 455) no Hoare annotation was computed. [2020-07-21 01:20:38,719 INFO L268 CegarLoopResult]: For program point L422(line 422) no Hoare annotation was computed. [2020-07-21 01:20:38,719 INFO L268 CegarLoopResult]: For program point L92(lines 92 390) no Hoare annotation was computed. [2020-07-21 01:20:38,719 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 30 575) the Hoare annotation is: (let ((.cse0 (= 1 |old(~a21~0)|)) (.cse37 (= 1 |old(~a20~0)|)) (.cse36 (= 1 |old(~a7~0)|))) (let ((.cse33 (not .cse36)) (.cse12 (not .cse37)) (.cse21 (not .cse0)) (.cse16 (<= ~a16~0 5)) (.cse26 (= 1 ~a21~0)) (.cse17 (< 4 ~a16~0)) (.cse5 (<= ~a8~0 |old(~a8~0)|)) (.cse6 (<= ~a16~0 |old(~a16~0)|)) (.cse7 (= ~a7~0 |old(~a7~0)|)) (.cse9 (= ~a17~0 |old(~a17~0)|)) (.cse8 (<= |old(~a16~0)| ~a16~0)) (.cse10 (= ~a20~0 |old(~a20~0)|)) (.cse11 (= ~a21~0 |old(~a21~0)|))) (let ((.cse27 (and .cse5 .cse6 .cse7 .cse9 .cse8 .cse10 .cse11)) (.cse1 (not (<= 6 |old(~a16~0)|))) (.cse18 (= 1 ~a17~0)) (.cse23 (not (<= 15 |old(~a8~0)|))) (.cse24 (<= 15 ~a8~0)) (.cse4 (not (<= |old(~a8~0)| 13))) (.cse29 (and .cse7 .cse9 .cse16 .cse26 .cse17 .cse10)) (.cse30 (not (= 15 |old(~a8~0)|))) (.cse14 (not (< 4 |old(~a16~0)|))) (.cse32 (and (not (= 6 |calculate_output_#in~input|)) (not (= 1 |calculate_output_#in~input|)) (not (= 2 |calculate_output_#in~input|)) (not (= 4 |calculate_output_#in~input|)) (not (= 5 |calculate_output_#in~input|)) (not (= 3 |calculate_output_#in~input|)))) (.cse31 (= 15 ~a8~0)) (.cse13 (not (<= |old(~a16~0)| 5))) (.cse20 (and (or .cse12 .cse21) (or .cse37 .cse0))) (.cse34 (= 1 ~a7~0)) (.cse15 (not (= 1 |old(~a17~0)|))) (.cse19 (not (<= |old(~a7~0)| 0))) (.cse35 (and .cse6 .cse7 .cse9 .cse8 .cse26 .cse10)) (.cse25 (not (<= |old(~a20~0)| 0))) (.cse3 (not (<= |old(~a16~0)| 4))) (.cse2 (not (<= |old(~a17~0)| 0))) (.cse22 (not (= 8 ~a12~0))) (.cse28 (and (or .cse36 .cse21) (or .cse33 .cse0)))) (and (or (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse2)) .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10 .cse11)) (or .cse12 .cse13 .cse4 .cse14 .cse15 (and .cse5 .cse7 .cse9 .cse16 .cse17 .cse10 .cse11)) (or (and .cse5 .cse6 .cse7 .cse8 .cse18 .cse10 .cse11) .cse19 .cse4 .cse14 .cse15 .cse20 .cse21 .cse22) (or .cse23 .cse19 .cse24 .cse15 .cse25 .cse21 .cse1 .cse22) (or (and .cse6 .cse5 .cse7 .cse9 .cse8 .cse26 .cse10) .cse19 .cse15 .cse25 .cse21 .cse1 .cse22) (or .cse23 .cse19 .cse24 .cse25 .cse1 .cse2 .cse22) (or .cse19 .cse25 .cse27 .cse1 .cse2 .cse22) (or .cse4 .cse27 (and (or .cse20 .cse1 .cse2) (or .cse25 .cse20 .cse3))) (or .cse19 .cse25 .cse15 .cse3 (and .cse6 .cse7 .cse8 .cse18 .cse10 .cse11) .cse22 .cse28) (or .cse29 .cse19 .cse13 .cse14 .cse15 .cse25 .cse21 .cse22) (or .cse30 (and .cse7 .cse9 .cse26 .cse10 .cse31 (= 5 ~a16~0)) .cse19 .cse13 .cse14 .cse15 .cse20 .cse32 .cse21 .cse22) (or .cse23 .cse19 .cse24 .cse20 .cse3 .cse2 .cse22 .cse28) (or .cse12 (and .cse6 .cse5 .cse7 .cse9 .cse8 .cse10 .cse11) .cse4 .cse15 .cse3) (or .cse19 .cse29 .cse13 .cse14 .cse25 .cse21 .cse2 .cse22) (or (and .cse6 .cse7 .cse9 .cse8 .cse10 .cse11) .cse19 .cse14 .cse20 .cse2 .cse22) (or .cse19 .cse20 (and .cse6 .cse5 .cse7 .cse8 .cse9 .cse26 .cse10) .cse3 .cse2 .cse22 .cse28) (or .cse30 .cse19 .cse14 .cse15 .cse25 .cse32 .cse21 .cse31 .cse22) (or .cse33 (and .cse6 .cse34 .cse11) .cse13 .cse21) (or .cse33 .cse20 .cse21 (and .cse34 (= 1 ~a20~0) .cse11)) (or .cse12 .cse19 .cse35 .cse15 .cse3 .cse22 .cse28) (or .cse19 .cse35 .cse25 .cse3 .cse2 .cse22 .cse28))))) [2020-07-21 01:20:38,719 INFO L268 CegarLoopResult]: For program point L324(lines 324 390) no Hoare annotation was computed. [2020-07-21 01:20:38,719 INFO L268 CegarLoopResult]: For program point L556-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L523-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L490-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L457-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L391(lines 391 393) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L424-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L391-2(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L292(lines 292 390) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L160(lines 160 390) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L557(line 557) no Hoare annotation was computed. [2020-07-21 01:20:38,720 INFO L268 CegarLoopResult]: For program point L524(line 524) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L491(line 491) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L458(line 458) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L425(line 425) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L392(line 392) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L194(lines 194 390) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L62(lines 62 390) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L261(lines 261 390) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L129(lines 129 390) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L559-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L526-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,721 INFO L268 CegarLoopResult]: For program point L493-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L460-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L427-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L361(lines 361 390) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L394-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L97(lines 97 390) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L31(lines 31 390) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L560(line 560) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L527(line 527) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L494(line 494) no Hoare annotation was computed. [2020-07-21 01:20:38,722 INFO L268 CegarLoopResult]: For program point L461(line 461) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L428(line 428) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L395(line 395) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L329(lines 329 390) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L197(lines 197 390) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L65(lines 65 390) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L363(lines 363 390) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L231(lines 231 390) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L165(lines 165 390) no Hoare annotation was computed. [2020-07-21 01:20:38,723 INFO L268 CegarLoopResult]: For program point L562-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L529-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L496-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L463-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L430-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L397-1(lines 30 575) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L265(lines 265 390) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L563(line 563) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L530(line 530) no Hoare annotation was computed. [2020-07-21 01:20:38,724 INFO L268 CegarLoopResult]: For program point L497(line 497) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point L464(line 464) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point L431(line 431) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point L398(line 398) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point L365(lines 365 390) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point L299(lines 299 390) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point L35(lines 35 390) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-21 01:20:38,725 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a7~0 0) (= 1 ~a17~0) (= 1 ~a21~0) (= 1 ~a20~0) (= 15 ~a8~0) (= 5 ~a16~0) (= 8 ~a12~0)) [2020-07-21 01:20:38,725 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-21 01:20:38,726 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-21 01:20:38,726 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 577 594) the Hoare annotation is: (or (not (= 1 |old(~a20~0)|)) (not (= 15 |old(~a8~0)|)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= 1 ~a21~0) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0)) (not (<= |old(~a7~0)| 0)) (not (<= |old(~a16~0)| 5)) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (not (= 1 |old(~a21~0)|)) (not (= 8 ~a12~0))) [2020-07-21 01:20:38,726 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:20:38,726 INFO L264 CegarLoopResult]: At program point L591(line 591) the Hoare annotation is: (let ((.cse13 (= 1 ~a21~0))) (let ((.cse11 (not .cse13)) (.cse4 (= 1 ~a20~0))) (let ((.cse7 (<= 6 ~a16~0)) (.cse1 (<= ~a8~0 13)) (.cse5 (< 4 ~a16~0)) (.cse14 (= 1 ~a7~0)) (.cse15 (<= ~a16~0 5)) (.cse8 (<= ~a17~0 0)) (.cse0 (or (and (not .cse4) .cse11) (and .cse13 .cse4))) (.cse12 (not (= 1 |old(~a7~0)|))) (.cse2 (<= ~a7~0 0)) (.cse3 (= 1 ~a17~0)) (.cse9 (<= ~a20~0 0)) (.cse10 (<= ~a16~0 4)) (.cse6 (= 8 ~a12~0))) (or (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (or (= 1 main_~input~0) (= 2 main_~input~0) (= 6 main_~input~0) (= 4 main_~input~0) (= 5 main_~input~0) (= 3 main_~input~0)) (= 15 ~a8~0) (= 5 ~a16~0) .cse0) (and .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 .cse0) (and (or (and .cse7 .cse8 .cse0) (and .cse9 .cse10 .cse0)) .cse1) (not (= 15 |old(~a8~0)|)) (and (or (and .cse7 .cse8 .cse11) (and .cse8 .cse11 .cse10)) .cse1) (not (<= |old(~a7~0)| 0)) (and .cse12 .cse2 .cse3 .cse13 .cse4 .cse10 .cse6) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse8 .cse2 .cse13 .cse5 .cse9 .cse6) (and .cse8 .cse2 .cse5 .cse6 .cse0) (not (= 1 |old(~a20~0)|)) (and .cse12 .cse8 .cse2 .cse13 .cse9 .cse10 .cse6) (not (<= |old(~a16~0)| 5)) (and .cse14 .cse13 .cse0) (and .cse1 .cse3 .cse15 .cse4) (and .cse2 .cse3 .cse13 .cse5 .cse9 .cse6) (and .cse14 .cse15 .cse13) (and (<= ~a8~0 |old(~a8~0)|) .cse8 .cse2 .cse13 .cse0) (not (= 1 |old(~a21~0)|)) (and .cse12 .cse2 .cse3 .cse13 .cse9 .cse10 .cse6) (not .cse6))))) [2020-07-21 01:20:38,726 INFO L268 CegarLoopResult]: For program point L591-1(line 591) no Hoare annotation was computed. [2020-07-21 01:20:38,726 INFO L268 CegarLoopResult]: For program point L588(line 588) no Hoare annotation was computed. [2020-07-21 01:20:38,727 INFO L264 CegarLoopResult]: At program point L583-2(lines 583 593) the Hoare annotation is: (let ((.cse13 (= 1 ~a21~0))) (let ((.cse11 (not .cse13)) (.cse3 (= 1 ~a20~0))) (let ((.cse7 (<= 6 ~a16~0)) (.cse0 (<= ~a8~0 13)) (.cse4 (< 4 ~a16~0)) (.cse14 (= 1 ~a7~0)) (.cse15 (<= ~a16~0 5)) (.cse8 (<= ~a17~0 0)) (.cse6 (or (and (not .cse3) .cse11) (and .cse13 .cse3))) (.cse12 (not (= 1 |old(~a7~0)|))) (.cse1 (<= ~a7~0 0)) (.cse2 (= 1 ~a17~0)) (.cse9 (<= ~a20~0 0)) (.cse10 (<= ~a16~0 4)) (.cse5 (= 8 ~a12~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 .cse5 .cse6) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a20~0 |old(~a20~0)|) (= 15 ~a8~0) (= 5 ~a16~0) .cse6) (and (or (and .cse7 .cse8 .cse6) (and .cse9 .cse10 .cse6)) .cse0) (not (= 15 |old(~a8~0)|)) (and (or (and .cse7 .cse8 .cse11) (and .cse8 .cse11 .cse10)) .cse0) (not (<= |old(~a7~0)| 0)) (and .cse12 .cse1 .cse2 .cse13 .cse3 .cse10 .cse5) (not (< 4 |old(~a16~0)|)) (not (= 1 |old(~a17~0)|)) (and .cse8 .cse1 .cse13 .cse4 .cse9 .cse5) (and .cse8 .cse1 .cse4 .cse5 .cse6) (not (= 1 |old(~a20~0)|)) (and .cse12 .cse8 .cse1 .cse13 .cse9 .cse10 .cse5) (not (<= |old(~a16~0)| 5)) (and .cse14 .cse13 .cse6) (and .cse0 .cse2 .cse15 .cse3) (and .cse1 .cse2 .cse13 .cse4 .cse9 .cse5) (and .cse14 .cse15 .cse13) (and (<= ~a8~0 |old(~a8~0)|) .cse8 .cse1 .cse13 .cse6) (not (= 1 |old(~a21~0)|)) (and .cse12 .cse1 .cse2 .cse13 .cse9 .cse10 .cse5) (not .cse5))))) [2020-07-21 01:20:38,727 INFO L268 CegarLoopResult]: For program point L583-3(lines 577 594) no Hoare annotation was computed. [2020-07-21 01:20:38,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 01:20:38 BoogieIcfgContainer [2020-07-21 01:20:38,753 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 01:20:38,755 INFO L168 Benchmark]: Toolchain (without parser) took 41579.90 ms. Allocated memory was 137.9 MB in the beginning and 696.8 MB in the end (delta: 558.9 MB). Free memory was 99.2 MB in the beginning and 383.7 MB in the end (delta: -284.5 MB). Peak memory consumption was 544.4 MB. Max. memory is 7.1 GB. [2020-07-21 01:20:38,756 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 01:20:38,757 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.92 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 98.8 MB in the beginning and 169.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-07-21 01:20:38,757 INFO L168 Benchmark]: Boogie Preprocessor took 123.43 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 164.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-21 01:20:38,758 INFO L168 Benchmark]: RCFGBuilder took 1229.75 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 164.9 MB in the beginning and 179.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. [2020-07-21 01:20:38,758 INFO L168 Benchmark]: TraceAbstraction took 39500.08 ms. Allocated memory was 236.5 MB in the beginning and 696.8 MB in the end (delta: 460.3 MB). Free memory was 179.1 MB in the beginning and 383.7 MB in the end (delta: -204.6 MB). Peak memory consumption was 525.7 MB. Max. memory is 7.1 GB. [2020-07-21 01:20:38,761 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.92 ms. Allocated memory was 137.9 MB in the beginning and 204.5 MB in the end (delta: 66.6 MB). Free memory was 98.8 MB in the beginning and 169.8 MB in the end (delta: -71.0 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.43 ms. Allocated memory is still 204.5 MB. Free memory was 169.8 MB in the beginning and 164.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1229.75 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 164.9 MB in the beginning and 179.1 MB in the end (delta: -14.2 MB). Peak memory consumption was 83.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 39500.08 ms. Allocated memory was 236.5 MB in the beginning and 696.8 MB in the end (delta: 460.3 MB). Free memory was 179.1 MB in the beginning and 383.7 MB in the end (delta: -204.6 MB). Peak memory consumption was 525.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 491]: 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 && a7 <= 0) && 1 == a17) && 1 == a20) && 4 < a16) && 8 == a12) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20))) || (((((a7 == \old(a7) && a17 == \old(a17)) && a20 == \old(a20)) && 15 == a8) && 5 == a16) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) || ((((6 <= a16 && a17 <= 0) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20))) || ((a20 <= 0 && a16 <= 4) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) && a8 <= 13)) || !(15 == \old(a8))) || ((((6 <= a16 && a17 <= 0) && !(1 == a21)) || ((a17 <= 0 && !(1 == a21)) && a16 <= 4)) && a8 <= 13)) || !(\old(a7) <= 0)) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 1 == a21) && 1 == a20) && a16 <= 4) && 8 == a12)) || !(4 < \old(a16))) || !(1 == \old(a17))) || (((((a17 <= 0 && a7 <= 0) && 1 == a21) && 4 < a16) && a20 <= 0) && 8 == a12)) || ((((a17 <= 0 && a7 <= 0) && 4 < a16) && 8 == a12) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) || !(1 == \old(a20))) || ((((((!(1 == \old(a7)) && a17 <= 0) && a7 <= 0) && 1 == a21) && a20 <= 0) && a16 <= 4) && 8 == a12)) || !(\old(a16) <= 5)) || ((1 == a7 && 1 == a21) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) || (((a8 <= 13 && 1 == a17) && a16 <= 5) && 1 == a20)) || (((((a7 <= 0 && 1 == a17) && 1 == a21) && 4 < a16) && a20 <= 0) && 8 == a12)) || ((1 == a7 && a16 <= 5) && 1 == a21)) || ((((a8 <= \old(a8) && a17 <= 0) && a7 <= 0) && 1 == a21) && ((!(1 == a20) && !(1 == a21)) || (1 == a21 && 1 == a20)))) || !(1 == \old(a21))) || ((((((!(1 == \old(a7)) && a7 <= 0) && 1 == a17) && 1 == a21) && a20 <= 0) && a16 <= 4) && 8 == a12)) || !(8 == a12) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 31.6s, OverallIterations: 13, TraceHistogramMax: 8, AutomataDifference: 18.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.7s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 674 SDtfs, 5569 SDslu, 695 SDs, 0 SdLazy, 13074 SolverSat, 1265 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5430 GetRequests, 5277 SyntacticMatches, 15 SemanticMatches, 138 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 598 ImplicationChecksByTransitivity, 6.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3612occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 13 MinimizatonAttempts, 1908 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 212 PreInvPairs, 260 NumberOfFragments, 1994 HoareAnnotationTreeSize, 212 FomulaSimplifications, 6824 FormulaSimplificationTreeSizeReduction, 0.8s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16878 FormulaSimplificationTreeSizeReductionInter, 6.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 7.3s InterpolantComputationTime, 2921 NumberOfCodeBlocks, 1998 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 5333 ConstructedInterpolants, 0 QuantifiedInterpolants, 4627061 SizeOfPredicates, 66 NumberOfNonLiveVariables, 6436 ConjunctsInSsa, 224 ConjunctsInUnsatCore, 23 InterpolantComputations, 4 PerfectInterpolantSequences, 6302/6466 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...