/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-20 17:28:44,720 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2020-07-20 17:28:44,776 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 17:28:44,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 17:28:44,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 17:28:44,782 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 17:28:44,784 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 17:28:44,786 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 17:28:44,789 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 17:28:44,794 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 17:28:44,800 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 17:28:44,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 17:28:44,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 17:28:44,806 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 17:28:44,809 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-20 17:28:44,820 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 17:28:44,821 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 17:28:44,823 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 17:28:44,824 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-20 17:28:44,849 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 17:28:44,852 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 17:28:44,854 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 17:28:44,854 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 17:28:44,854 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 17:28:44,855 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 17:28:44,855 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 17:28:44,855 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 17:28:44,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 17:28:44,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 17:28:44,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 17:28:44,856 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 17:28:44,856 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 17:28:44,856 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 17:28:44,856 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 17:28:44,856 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 17:28:44,857 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 17:28:44,857 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 17:28:44,857 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 17:28:44,857 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 17:28:44,858 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 17:28:44,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:28:44,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 17:28:44,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 17:28:44,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 17:28:44,859 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 17:28:44,859 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:44,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 17:28:44,859 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 17:28:44,859 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-20 17:28:45,159 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 17:28:45,174 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 17:28:45,179 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 17:28:45,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 17:28:45,183 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 17:28:45,184 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-20 17:28:45,265 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53fae431/587b6d04de6b42a3bccf85726b6b8877/FLAG26feebec3 [2020-07-20 17:28:45,894 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 17:28:45,895 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label56.c [2020-07-20 17:28:45,907 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53fae431/587b6d04de6b42a3bccf85726b6b8877/FLAG26feebec3 [2020-07-20 17:28:46,143 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b53fae431/587b6d04de6b42a3bccf85726b6b8877 [2020-07-20 17:28:46,154 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 17:28:46,157 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 17:28:46,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 17:28:46,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 17:28:46,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 17:28:46,164 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:46,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e90495e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46, skipping insertion in model container [2020-07-20 17:28:46,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:46,176 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 17:28:46,228 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 17:28:46,643 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:28:46,650 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 17:28:46,963 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 17:28:46,985 INFO L208 MainTranslator]: Completed translation [2020-07-20 17:28:46,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46 WrapperNode [2020-07-20 17:28:46,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 17:28:46,987 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 17:28:46,987 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 17:28:46,987 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 17:28:47,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... [2020-07-20 17:28:47,122 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 17:28:47,123 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 17:28:47,123 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 17:28:47,124 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 17:28:47,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 17:28:47,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 17:28:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 17:28:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-20 17:28:47,218 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 17:28:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-20 17:28:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 17:28:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 17:28:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-20 17:28:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 17:28:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 17:28:47,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 17:28:48,530 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 17:28:48,530 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-20 17:28:48,537 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:48 BoogieIcfgContainer [2020-07-20 17:28:48,537 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 17:28:48,538 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 17:28:48,539 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 17:28:48,542 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 17:28:48,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 05:28:46" (1/3) ... [2020-07-20 17:28:48,543 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee3b59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:48, skipping insertion in model container [2020-07-20 17:28:48,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 05:28:46" (2/3) ... [2020-07-20 17:28:48,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1ee3b59a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 05:28:48, skipping insertion in model container [2020-07-20 17:28:48,545 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 05:28:48" (3/3) ... [2020-07-20 17:28:48,547 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label56.c [2020-07-20 17:28:48,558 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-20 17:28:48,567 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 17:28:48,584 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 17:28:48,617 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 17:28:48,617 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 17:28:48,618 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-20 17:28:48,618 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 17:28:48,618 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 17:28:48,618 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 17:28:48,618 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 17:28:48,619 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 17:28:48,645 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-07-20 17:28:48,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-07-20 17:28:48,660 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:48,662 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:48,662 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:48,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:48,670 INFO L82 PathProgramCache]: Analyzing trace with hash 1821084561, now seen corresponding path program 1 times [2020-07-20 17:28:48,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:48,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808565704] [2020-07-20 17:28:48,681 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 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:48,910 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:48,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:48,917 INFO L263 TraceCheckSpWp]: Trace formula consists of 287 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-20 17:28:48,935 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:49,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:49,089 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:49,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808565704] [2020-07-20 17:28:49,091 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:49,092 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:49,093 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038482635] [2020-07-20 17:28:49,104 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:49,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:49,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:49,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:49,129 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 3 states. [2020-07-20 17:28:50,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:50,171 INFO L93 Difference]: Finished difference Result 619 states and 1060 transitions. [2020-07-20 17:28:50,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:50,174 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 129 [2020-07-20 17:28:50,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:50,206 INFO L225 Difference]: With dead ends: 619 [2020-07-20 17:28:50,206 INFO L226 Difference]: Without dead ends: 321 [2020-07-20 17:28:50,224 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:50,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-20 17:28:50,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 319. [2020-07-20 17:28:50,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-07-20 17:28:50,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 421 transitions. [2020-07-20 17:28:50,360 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 421 transitions. Word has length 129 [2020-07-20 17:28:50,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:50,363 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 421 transitions. [2020-07-20 17:28:50,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:50,364 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 421 transitions. [2020-07-20 17:28:50,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2020-07-20 17:28:50,373 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:50,373 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:50,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:50,580 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:50,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:50,582 INFO L82 PathProgramCache]: Analyzing trace with hash -1159828288, now seen corresponding path program 1 times [2020-07-20 17:28:50,582 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:50,583 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1924789590] [2020-07-20 17:28:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:50,690 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:50,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:50,693 INFO L263 TraceCheckSpWp]: Trace formula consists of 340 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-20 17:28:50,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:50,795 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 17:28:50,796 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:50,895 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-07-20 17:28:50,896 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1924789590] [2020-07-20 17:28:50,896 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-07-20 17:28:50,897 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 5 [2020-07-20 17:28:50,897 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [432384743] [2020-07-20 17:28:50,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 17:28:50,901 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:50,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 17:28:50,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:50,903 INFO L87 Difference]: Start difference. First operand 319 states and 421 transitions. Second operand 4 states. [2020-07-20 17:28:51,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:51,693 INFO L93 Difference]: Finished difference Result 941 states and 1256 transitions. [2020-07-20 17:28:51,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-20 17:28:51,695 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 138 [2020-07-20 17:28:51,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:51,703 INFO L225 Difference]: With dead ends: 941 [2020-07-20 17:28:51,704 INFO L226 Difference]: Without dead ends: 628 [2020-07-20 17:28:51,706 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 275 GetRequests, 268 SyntacticMatches, 4 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:51,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 628 states. [2020-07-20 17:28:51,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 628 to 628. [2020-07-20 17:28:51,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 628 states. [2020-07-20 17:28:51,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628 states to 628 states and 815 transitions. [2020-07-20 17:28:51,749 INFO L78 Accepts]: Start accepts. Automaton has 628 states and 815 transitions. Word has length 138 [2020-07-20 17:28:51,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:51,750 INFO L479 AbstractCegarLoop]: Abstraction has 628 states and 815 transitions. [2020-07-20 17:28:51,750 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 17:28:51,750 INFO L276 IsEmpty]: Start isEmpty. Operand 628 states and 815 transitions. [2020-07-20 17:28:51,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-07-20 17:28:51,755 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:51,755 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:51,968 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:51,969 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:51,970 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:51,970 INFO L82 PathProgramCache]: Analyzing trace with hash -1202576379, now seen corresponding path program 1 times [2020-07-20 17:28:51,971 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:51,972 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [207886830] [2020-07-20 17:28:51,972 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:52,084 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:52,084 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:52,086 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:52,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:52,168 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-07-20 17:28:52,169 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:52,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [207886830] [2020-07-20 17:28:52,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:52,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:52,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436690383] [2020-07-20 17:28:52,173 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:52,174 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:52,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:52,183 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:52,184 INFO L87 Difference]: Start difference. First operand 628 states and 815 transitions. Second operand 3 states. [2020-07-20 17:28:52,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:52,929 INFO L93 Difference]: Finished difference Result 1543 states and 2083 transitions. [2020-07-20 17:28:52,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:52,933 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 146 [2020-07-20 17:28:52,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:52,941 INFO L225 Difference]: With dead ends: 1543 [2020-07-20 17:28:52,941 INFO L226 Difference]: Without dead ends: 921 [2020-07-20 17:28:52,943 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 144 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:52,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2020-07-20 17:28:52,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 919. [2020-07-20 17:28:52,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 919 states. [2020-07-20 17:28:52,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 919 states to 919 states and 1209 transitions. [2020-07-20 17:28:52,986 INFO L78 Accepts]: Start accepts. Automaton has 919 states and 1209 transitions. Word has length 146 [2020-07-20 17:28:52,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:52,987 INFO L479 AbstractCegarLoop]: Abstraction has 919 states and 1209 transitions. [2020-07-20 17:28:52,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:52,987 INFO L276 IsEmpty]: Start isEmpty. Operand 919 states and 1209 transitions. [2020-07-20 17:28:52,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-07-20 17:28:52,992 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:52,992 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:53,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:53,208 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:53,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:53,208 INFO L82 PathProgramCache]: Analyzing trace with hash 1262915279, now seen corresponding path program 1 times [2020-07-20 17:28:53,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:53,209 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1942024914] [2020-07-20 17:28:53,210 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:53,342 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:53,342 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:53,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-20 17:28:53,352 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:53,395 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:53,395 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:53,470 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 24 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:53,471 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1942024914] [2020-07-20 17:28:53,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:53,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2020-07-20 17:28:53,472 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667489492] [2020-07-20 17:28:53,473 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 17:28:53,473 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:53,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 17:28:53,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-07-20 17:28:53,474 INFO L87 Difference]: Start difference. First operand 919 states and 1209 transitions. Second operand 7 states. [2020-07-20 17:28:55,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:55,129 INFO L93 Difference]: Finished difference Result 2259 states and 2968 transitions. [2020-07-20 17:28:55,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:55,130 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 152 [2020-07-20 17:28:55,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:55,142 INFO L225 Difference]: With dead ends: 2259 [2020-07-20 17:28:55,142 INFO L226 Difference]: Without dead ends: 1346 [2020-07-20 17:28:55,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:55,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1346 states. [2020-07-20 17:28:55,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1346 to 1346. [2020-07-20 17:28:55,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1346 states. [2020-07-20 17:28:55,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1346 states to 1346 states and 1640 transitions. [2020-07-20 17:28:55,212 INFO L78 Accepts]: Start accepts. Automaton has 1346 states and 1640 transitions. Word has length 152 [2020-07-20 17:28:55,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:55,212 INFO L479 AbstractCegarLoop]: Abstraction has 1346 states and 1640 transitions. [2020-07-20 17:28:55,212 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 17:28:55,213 INFO L276 IsEmpty]: Start isEmpty. Operand 1346 states and 1640 transitions. [2020-07-20 17:28:55,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-20 17:28:55,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:55,220 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:55,435 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:55,437 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:55,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:55,439 INFO L82 PathProgramCache]: Analyzing trace with hash -989124760, now seen corresponding path program 1 times [2020-07-20 17:28:55,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:55,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2106502178] [2020-07-20 17:28:55,440 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:55,605 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:55,605 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:55,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 415 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:55,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:55,650 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:55,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-20 17:28:55,721 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:55,722 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2106502178] [2020-07-20 17:28:55,722 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-20 17:28:55,722 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2020-07-20 17:28:55,722 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941180398] [2020-07-20 17:28:55,723 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-20 17:28:55,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:55,724 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-20 17:28:55,724 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-20 17:28:55,724 INFO L87 Difference]: Start difference. First operand 1346 states and 1640 transitions. Second operand 6 states. [2020-07-20 17:28:56,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:56,781 INFO L93 Difference]: Finished difference Result 3156 states and 3954 transitions. [2020-07-20 17:28:56,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:56,786 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-07-20 17:28:56,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:56,810 INFO L225 Difference]: With dead ends: 3156 [2020-07-20 17:28:56,811 INFO L226 Difference]: Without dead ends: 1820 [2020-07-20 17:28:56,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 323 GetRequests, 314 SyntacticMatches, 2 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2020-07-20 17:28:56,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1820 states. [2020-07-20 17:28:56,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1820 to 1662. [2020-07-20 17:28:56,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1662 states. [2020-07-20 17:28:56,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1662 states to 1662 states and 2099 transitions. [2020-07-20 17:28:56,918 INFO L78 Accepts]: Start accepts. Automaton has 1662 states and 2099 transitions. Word has length 160 [2020-07-20 17:28:56,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:56,918 INFO L479 AbstractCegarLoop]: Abstraction has 1662 states and 2099 transitions. [2020-07-20 17:28:56,918 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-20 17:28:56,919 INFO L276 IsEmpty]: Start isEmpty. Operand 1662 states and 2099 transitions. [2020-07-20 17:28:56,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-20 17:28:56,927 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:56,927 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:57,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:57,145 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:57,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:57,146 INFO L82 PathProgramCache]: Analyzing trace with hash -1147594157, now seen corresponding path program 1 times [2020-07-20 17:28:57,146 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:57,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [561822189] [2020-07-20 17:28:57,147 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:57,271 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:57,272 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:57,274 INFO L263 TraceCheckSpWp]: Trace formula consists of 365 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-20 17:28:57,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:57,313 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 17:28:57,313 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:57,313 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [561822189] [2020-07-20 17:28:57,314 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:57,314 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 17:28:57,314 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253612869] [2020-07-20 17:28:57,315 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 17:28:57,315 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:57,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 17:28:57,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-20 17:28:57,317 INFO L87 Difference]: Start difference. First operand 1662 states and 2099 transitions. Second operand 5 states. [2020-07-20 17:28:58,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:58,245 INFO L93 Difference]: Finished difference Result 4838 states and 6389 transitions. [2020-07-20 17:28:58,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-20 17:28:58,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-07-20 17:28:58,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:58,274 INFO L225 Difference]: With dead ends: 4838 [2020-07-20 17:28:58,274 INFO L226 Difference]: Without dead ends: 3186 [2020-07-20 17:28:58,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-20 17:28:58,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3186 states. [2020-07-20 17:28:58,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3186 to 2994. [2020-07-20 17:28:58,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2994 states. [2020-07-20 17:28:58,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2994 states to 2994 states and 3682 transitions. [2020-07-20 17:28:58,441 INFO L78 Accepts]: Start accepts. Automaton has 2994 states and 3682 transitions. Word has length 160 [2020-07-20 17:28:58,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:58,441 INFO L479 AbstractCegarLoop]: Abstraction has 2994 states and 3682 transitions. [2020-07-20 17:28:58,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 17:28:58,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2994 states and 3682 transitions. [2020-07-20 17:28:58,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2020-07-20 17:28:58,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 17:28:58,453 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-20 17:28:58,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:58,669 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 17:28:58,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 17:28:58,669 INFO L82 PathProgramCache]: Analyzing trace with hash -1429632528, now seen corresponding path program 1 times [2020-07-20 17:28:58,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-20 17:28:58,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [814167932] [2020-07-20 17:28:58,670 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:58,802 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-20 17:28:58,802 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-20 17:28:58,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 421 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-20 17:28:58,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-20 17:28:58,851 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-07-20 17:28:58,851 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-20 17:28:58,851 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [814167932] [2020-07-20 17:28:58,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 17:28:58,852 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 17:28:58,852 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995796422] [2020-07-20 17:28:58,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 17:28:58,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-20 17:28:58,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 17:28:58,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:58,855 INFO L87 Difference]: Start difference. First operand 2994 states and 3682 transitions. Second operand 3 states. [2020-07-20 17:28:59,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 17:28:59,624 INFO L93 Difference]: Finished difference Result 6992 states and 8619 transitions. [2020-07-20 17:28:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 17:28:59,626 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 164 [2020-07-20 17:28:59,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 17:28:59,626 INFO L225 Difference]: With dead ends: 6992 [2020-07-20 17:28:59,626 INFO L226 Difference]: Without dead ends: 0 [2020-07-20 17:28:59,641 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 163 GetRequests, 162 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 17:28:59,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-20 17:28:59,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-20 17:28:59,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-20 17:28:59,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-20 17:28:59,644 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 164 [2020-07-20 17:28:59,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 17:28:59,644 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-20 17:28:59,644 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 17:28:59,644 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-20 17:28:59,644 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-20 17:28:59,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 17:28:59,863 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-20 17:29:00,208 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 35 [2020-07-20 17:29:00,662 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 37 [2020-07-20 17:29:00,817 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,817 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|)) [2020-07-20 17:29:00,817 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,817 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,817 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-07-20 17:29:00,818 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:29:00,819 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-07-20 17:29:00,820 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-07-20 17:29:00,821 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:29:00,822 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,823 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 541) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-07-20 17:29:00,824 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,825 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-07-20 17:29:00,826 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-07-20 17:29:00,827 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-07-20 17:29:00,828 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-07-20 17:29:00,829 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,830 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:29:00,831 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-07-20 17:29:00,832 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-07-20 17:29:00,833 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-07-20 17:29:00,834 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-07-20 17:29:00,835 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-07-20 17:29:00,836 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-07-20 17:29:00,837 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,838 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,839 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse7 (<= ~a28~0 |old(~a28~0)|)) (.cse8 (= ~a11~0 |old(~a11~0)|)) (.cse9 (= ~a19~0 |old(~a19~0)|))) (let ((.cse0 (not (<= |old(~a28~0)| 9))) (.cse5 (not (= 1 |old(~a11~0)|))) (.cse6 (and .cse7 .cse8 .cse9)) (.cse4 (not (= 1 |old(~a19~0)|))) (.cse2 (not (<= |old(~a17~0)| 7))) (.cse1 (<= ~a17~0 7)) (.cse3 (not (<= |old(~a11~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3) (or (and (or .cse4 .cse5) (or .cse0 .cse5)) .cse6) (or (and .cse7 .cse8 .cse1 .cse9) .cse2 .cse5) (or .cse6 .cse3) (or .cse4 .cse2 .cse1 .cse3)))) [2020-07-20 17:29:00,839 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,839 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,839 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,839 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-07-20 17:29:00,839 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-07-20 17:29:00,839 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-07-20 17:29:00,840 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,841 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-07-20 17:29:00,842 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-07-20 17:29:00,843 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-07-20 17:29:00,844 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:29:00,845 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,846 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= 1 ~a19~0) (<= ~a11~0 0) (<= ~a28~0 7)) [2020-07-20 17:29:00,847 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-20 17:29:00,847 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-20 17:29:00,847 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (= 1 |old(~a19~0)|)) (not (<= |old(~a28~0)| 7)) (and (<= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 |old(~a19~0)|)) (not (<= |old(~a11~0)| 0))) [2020-07-20 17:29:00,847 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse0 (= 1 ~a11~0))) (or (not (= 1 |old(~a19~0)|)) (and (= 1 ~a19~0) .cse0) (and .cse0 (<= ~a28~0 9)) (<= ~a11~0 0) (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a17~0 7)) (not (<= |old(~a11~0)| 0)))) [2020-07-20 17:29:00,847 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:29:00,847 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-07-20 17:29:00,848 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse0 (= 1 ~a11~0))) (or (not (= 1 |old(~a19~0)|)) (and (= 1 ~a19~0) .cse0) (and .cse0 (<= ~a28~0 9)) (<= ~a11~0 0) (not (<= |old(~a28~0)| 7)) (and .cse0 (<= ~a17~0 7)) (not (<= |old(~a11~0)| 0)))) [2020-07-20 17:29:00,848 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-07-20 17:29:00,848 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-07-20 17:29:00,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 05:29:00 BoogieIcfgContainer [2020-07-20 17:29:00,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 17:29:00,873 INFO L168 Benchmark]: Toolchain (without parser) took 14716.34 ms. Allocated memory was 145.2 MB in the beginning and 415.2 MB in the end (delta: 270.0 MB). Free memory was 99.9 MB in the beginning and 258.2 MB in the end (delta: -158.2 MB). Peak memory consumption was 234.3 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,874 INFO L168 Benchmark]: CDTParser took 0.61 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,875 INFO L168 Benchmark]: CACSL2BoogieTranslator took 827.71 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.5 MB in the beginning and 172.6 MB in the end (delta: -73.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,876 INFO L168 Benchmark]: Boogie Preprocessor took 135.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,877 INFO L168 Benchmark]: RCFGBuilder took 1414.00 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.7 MB in the beginning and 181.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,878 INFO L168 Benchmark]: TraceAbstraction took 12331.98 ms. Allocated memory was 238.6 MB in the beginning and 415.2 MB in the end (delta: 176.7 MB). Free memory was 181.8 MB in the beginning and 258.2 MB in the end (delta: -76.3 MB). Peak memory consumption was 222.9 MB. Max. memory is 7.1 GB. [2020-07-20 17:29:00,881 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 ms. Allocated memory is still 145.2 MB. Free memory was 120.1 MB in the beginning and 119.9 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 827.71 ms. Allocated memory was 145.2 MB in the beginning and 205.5 MB in the end (delta: 60.3 MB). Free memory was 99.5 MB in the beginning and 172.6 MB in the end (delta: -73.1 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 135.50 ms. Allocated memory is still 205.5 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1414.00 ms. Allocated memory was 205.5 MB in the beginning and 238.6 MB in the end (delta: 33.0 MB). Free memory was 167.7 MB in the beginning and 181.8 MB in the end (delta: -14.1 MB). Peak memory consumption was 83.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 12331.98 ms. Allocated memory was 238.6 MB in the beginning and 415.2 MB in the end (delta: 176.7 MB). Free memory was 181.8 MB in the beginning and 258.2 MB in the end (delta: -76.3 MB). Peak memory consumption was 222.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 541]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: (((((!(1 == \old(a19)) || (1 == a19 && 1 == a11)) || (1 == a11 && a28 <= 9)) || a11 <= 0) || !(\old(a28) <= 7)) || (1 == a11 && a17 <= 7)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 11.2s, OverallIterations: 7, TraceHistogramMax: 3, AutomataDifference: 7.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 711 SDtfs, 2130 SDslu, 329 SDs, 0 SdLazy, 4314 SolverSat, 868 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1503 GetRequests, 1471 SyntacticMatches, 6 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2994occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 7 MinimizatonAttempts, 354 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 87 PreInvPairs, 143 NumberOfFragments, 218 HoareAnnotationTreeSize, 87 FomulaSimplifications, 1988 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1410 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 1049 NumberOfCodeBlocks, 1049 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 1489 ConstructedInterpolants, 0 QuantifiedInterpolants, 456228 SizeOfPredicates, 11 NumberOfNonLiveVariables, 2621 ConjunctsInSsa, 44 ConjunctsInUnsatCore, 10 InterpolantComputations, 5 PerfectInterpolantSequences, 210/221 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...