/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-invgen/large_const.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 17:48:55,219 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 17:48:55,224 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 17:48:55,257 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 17:48:55,257 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 17:48:55,259 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 17:48:55,261 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 17:48:55,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 17:48:55,266 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 17:48:55,267 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 17:48:55,269 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 17:48:55,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 17:48:55,271 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 17:48:55,272 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 17:48:55,274 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 17:48:55,276 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 17:48:55,277 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 17:48:55,278 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 17:48:55,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 17:48:55,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 17:48:55,286 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 17:48:55,288 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 17:48:55,290 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 17:48:55,291 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 17:48:55,295 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 17:48:55,314 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 17:48:55,315 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 17:48:55,316 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 17:48:55,319 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 17:48:55,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 17:48:55,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 17:48:55,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 17:48:55,350 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 17:48:55,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 17:48:55,350 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 17:48:55,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 17:48:55,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 17:48:55,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 17:48:55,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 17:48:55,352 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 17:48:55,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 17:48:55,353 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 17:48:55,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 17:48:55,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 17:48:55,354 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 17:48:55,354 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 17:48:55,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 17:48:55,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 17:48:55,355 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 17:48:55,355 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 17:48:55,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 17:48:55,355 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 17:48:55,840 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 17:48:55,865 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 17:48:55,870 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 17:48:55,873 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 17:48:55,874 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 17:48:55,876 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/large_const.i [2020-09-04 17:48:55,975 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e2be0ae0/19db33bc06574ab3ad49fbe5e3a4e408/FLAG4ebfd5bb7 [2020-09-04 17:48:56,592 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 17:48:56,593 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loop-invgen/large_const.i [2020-09-04 17:48:56,603 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e2be0ae0/19db33bc06574ab3ad49fbe5e3a4e408/FLAG4ebfd5bb7 [2020-09-04 17:48:56,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4e2be0ae0/19db33bc06574ab3ad49fbe5e3a4e408 [2020-09-04 17:48:56,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 17:48:56,938 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 17:48:56,939 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 17:48:56,940 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 17:48:56,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 17:48:56,947 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:48:56" (1/1) ... [2020-09-04 17:48:56,952 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27dd7b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:56, skipping insertion in model container [2020-09-04 17:48:56,953 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 05:48:56" (1/1) ... [2020-09-04 17:48:56,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 17:48:56,994 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 17:48:57,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:48:57,226 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 17:48:57,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 17:48:57,275 INFO L208 MainTranslator]: Completed translation [2020-09-04 17:48:57,275 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57 WrapperNode [2020-09-04 17:48:57,276 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 17:48:57,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 17:48:57,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 17:48:57,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 17:48:57,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,314 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... [2020-09-04 17:48:57,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 17:48:57,400 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 17:48:57,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 17:48:57,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 17:48:57,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 17:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 17:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 17:48:57,491 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-04 17:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-04 17:48:57,492 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 17:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 17:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-04 17:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-04 17:48:57,492 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-04 17:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 17:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 17:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 17:48:57,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 17:48:57,875 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 17:48:57,875 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-09-04 17:48:57,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:48:57 BoogieIcfgContainer [2020-09-04 17:48:57,881 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 17:48:57,883 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 17:48:57,883 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 17:48:57,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 17:48:57,888 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 05:48:56" (1/3) ... [2020-09-04 17:48:57,889 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bf7590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:48:57, skipping insertion in model container [2020-09-04 17:48:57,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 05:48:57" (2/3) ... [2020-09-04 17:48:57,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49bf7590 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 05:48:57, skipping insertion in model container [2020-09-04 17:48:57,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 05:48:57" (3/3) ... [2020-09-04 17:48:57,893 INFO L109 eAbstractionObserver]: Analyzing ICFG large_const.i [2020-09-04 17:48:57,906 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 17:48:57,918 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 17:48:57,940 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 17:48:57,969 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 17:48:57,970 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 17:48:57,970 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 17:48:57,970 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 17:48:57,970 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 17:48:57,970 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 17:48:57,970 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 17:48:57,971 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 17:48:57,992 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states. [2020-09-04 17:48:58,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 17:48:58,008 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:48:58,010 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] [2020-09-04 17:48:58,011 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:48:58,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:48:58,018 INFO L82 PathProgramCache]: Analyzing trace with hash 288343897, now seen corresponding path program 1 times [2020-09-04 17:48:58,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:48:58,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [540827543] [2020-09-04 17:48:58,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:48:58,111 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:48:58,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:58,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:48:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:58,222 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:48:58,225 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [540827543] [2020-09-04 17:48:58,228 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:48:58,228 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-04 17:48:58,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051015007] [2020-09-04 17:48:58,235 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-04 17:48:58,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:48:58,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-04 17:48:58,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:48:58,254 INFO L87 Difference]: Start difference. First operand 55 states. Second operand 2 states. [2020-09-04 17:48:58,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:48:58,291 INFO L93 Difference]: Finished difference Result 75 states and 86 transitions. [2020-09-04 17:48:58,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-04 17:48:58,292 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2020-09-04 17:48:58,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:48:58,307 INFO L225 Difference]: With dead ends: 75 [2020-09-04 17:48:58,307 INFO L226 Difference]: Without dead ends: 48 [2020-09-04 17:48:58,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-04 17:48:58,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-09-04 17:48:58,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-09-04 17:48:58,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-09-04 17:48:58,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2020-09-04 17:48:58,370 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 27 [2020-09-04 17:48:58,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:48:58,370 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2020-09-04 17:48:58,371 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-04 17:48:58,371 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2020-09-04 17:48:58,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-09-04 17:48:58,372 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:48:58,373 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] [2020-09-04 17:48:58,373 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 17:48:58,374 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:48:58,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:48:58,374 INFO L82 PathProgramCache]: Analyzing trace with hash 320540924, now seen corresponding path program 1 times [2020-09-04 17:48:58,375 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:48:58,375 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002583736] [2020-09-04 17:48:58,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:48:58,378 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:48:58,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:58,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:48:58,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:58,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:48:58,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002583736] [2020-09-04 17:48:58,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:48:58,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-04 17:48:58,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517734037] [2020-09-04 17:48:58,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 17:48:58,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:48:58,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 17:48:58,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-09-04 17:48:58,499 INFO L87 Difference]: Start difference. First operand 48 states and 51 transitions. Second operand 5 states. [2020-09-04 17:48:58,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:48:58,631 INFO L93 Difference]: Finished difference Result 67 states and 71 transitions. [2020-09-04 17:48:58,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 17:48:58,632 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 27 [2020-09-04 17:48:58,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:48:58,635 INFO L225 Difference]: With dead ends: 67 [2020-09-04 17:48:58,635 INFO L226 Difference]: Without dead ends: 51 [2020-09-04 17:48:58,637 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:48:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2020-09-04 17:48:58,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2020-09-04 17:48:58,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-09-04 17:48:58,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 52 transitions. [2020-09-04 17:48:58,650 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 52 transitions. Word has length 27 [2020-09-04 17:48:58,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:48:58,651 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 52 transitions. [2020-09-04 17:48:58,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 17:48:58,652 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 52 transitions. [2020-09-04 17:48:58,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-09-04 17:48:58,653 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:48:58,654 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] [2020-09-04 17:48:58,654 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 17:48:58,654 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:48:58,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:48:58,655 INFO L82 PathProgramCache]: Analyzing trace with hash 751787059, now seen corresponding path program 1 times [2020-09-04 17:48:58,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:48:58,656 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1640259837] [2020-09-04 17:48:58,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:48:58,699 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:48:58,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:58,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:48:58,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:58,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:48:58,898 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1640259837] [2020-09-04 17:48:58,899 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:48:58,899 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:48:58,899 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787318239] [2020-09-04 17:48:58,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:48:58,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:48:58,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:48:58,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:48:58,905 INFO L87 Difference]: Start difference. First operand 49 states and 52 transitions. Second operand 7 states. [2020-09-04 17:48:59,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:48:59,109 INFO L93 Difference]: Finished difference Result 88 states and 96 transitions. [2020-09-04 17:48:59,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 17:48:59,110 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 37 [2020-09-04 17:48:59,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:48:59,112 INFO L225 Difference]: With dead ends: 88 [2020-09-04 17:48:59,113 INFO L226 Difference]: Without dead ends: 86 [2020-09-04 17:48:59,114 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:48:59,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2020-09-04 17:48:59,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 66. [2020-09-04 17:48:59,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-09-04 17:48:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-09-04 17:48:59,134 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 37 [2020-09-04 17:48:59,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:48:59,135 INFO L479 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-09-04 17:48:59,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:48:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-09-04 17:48:59,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-04 17:48:59,137 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:48:59,137 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] [2020-09-04 17:48:59,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 17:48:59,137 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:48:59,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:48:59,138 INFO L82 PathProgramCache]: Analyzing trace with hash 3796503, now seen corresponding path program 1 times [2020-09-04 17:48:59,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:48:59,139 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [552516983] [2020-09-04 17:48:59,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:48:59,146 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:48:59,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:59,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:48:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:59,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:48:59,276 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [552516983] [2020-09-04 17:48:59,278 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:48:59,278 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:48:59,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345036013] [2020-09-04 17:48:59,279 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:48:59,280 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:48:59,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:48:59,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:48:59,282 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 7 states. [2020-09-04 17:48:59,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:48:59,490 INFO L93 Difference]: Finished difference Result 105 states and 115 transitions. [2020-09-04 17:48:59,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 17:48:59,490 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-04 17:48:59,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:48:59,495 INFO L225 Difference]: With dead ends: 105 [2020-09-04 17:48:59,495 INFO L226 Difference]: Without dead ends: 103 [2020-09-04 17:48:59,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:48:59,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103 states. [2020-09-04 17:48:59,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103 to 85. [2020-09-04 17:48:59,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-09-04 17:48:59,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 94 transitions. [2020-09-04 17:48:59,518 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 94 transitions. Word has length 38 [2020-09-04 17:48:59,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:48:59,519 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 94 transitions. [2020-09-04 17:48:59,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:48:59,519 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 94 transitions. [2020-09-04 17:48:59,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-09-04 17:48:59,521 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:48:59,521 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] [2020-09-04 17:48:59,521 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 17:48:59,521 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:48:59,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:48:59,522 INFO L82 PathProgramCache]: Analyzing trace with hash 197728887, now seen corresponding path program 1 times [2020-09-04 17:48:59,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:48:59,523 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114186375] [2020-09-04 17:48:59,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:48:59,530 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:48:59,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:59,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:48:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:48:59,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:48:59,662 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114186375] [2020-09-04 17:48:59,662 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:48:59,663 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 17:48:59,663 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625689857] [2020-09-04 17:48:59,663 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 17:48:59,666 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:48:59,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 17:48:59,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-09-04 17:48:59,667 INFO L87 Difference]: Start difference. First operand 85 states and 94 transitions. Second operand 7 states. [2020-09-04 17:48:59,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:48:59,830 INFO L93 Difference]: Finished difference Result 116 states and 129 transitions. [2020-09-04 17:48:59,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 17:48:59,831 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2020-09-04 17:48:59,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:48:59,833 INFO L225 Difference]: With dead ends: 116 [2020-09-04 17:48:59,833 INFO L226 Difference]: Without dead ends: 114 [2020-09-04 17:48:59,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:48:59,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-09-04 17:48:59,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 97. [2020-09-04 17:48:59,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-09-04 17:48:59,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 110 transitions. [2020-09-04 17:48:59,867 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 110 transitions. Word has length 38 [2020-09-04 17:48:59,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:48:59,867 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 110 transitions. [2020-09-04 17:48:59,868 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 17:48:59,868 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 110 transitions. [2020-09-04 17:48:59,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2020-09-04 17:48:59,870 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:48:59,870 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-04 17:48:59,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 17:48:59,871 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:48:59,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:48:59,871 INFO L82 PathProgramCache]: Analyzing trace with hash 88652198, now seen corresponding path program 1 times [2020-09-04 17:48:59,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:48:59,872 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [218346129] [2020-09-04 17:48:59,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:48:59,879 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:48:59,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:00,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-04 17:49:00,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:00,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [218346129] [2020-09-04 17:49:00,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:00,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 17:49:00,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048103886] [2020-09-04 17:49:00,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 17:49:00,077 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:00,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 17:49:00,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:49:00,079 INFO L87 Difference]: Start difference. First operand 97 states and 110 transitions. Second operand 9 states. [2020-09-04 17:49:00,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:00,340 INFO L93 Difference]: Finished difference Result 129 states and 143 transitions. [2020-09-04 17:49:00,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 17:49:00,341 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 49 [2020-09-04 17:49:00,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:00,344 INFO L225 Difference]: With dead ends: 129 [2020-09-04 17:49:00,345 INFO L226 Difference]: Without dead ends: 127 [2020-09-04 17:49:00,350 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-04 17:49:00,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2020-09-04 17:49:00,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 110. [2020-09-04 17:49:00,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-09-04 17:49:00,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 123 transitions. [2020-09-04 17:49:00,402 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 123 transitions. Word has length 49 [2020-09-04 17:49:00,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:00,403 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 123 transitions. [2020-09-04 17:49:00,404 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 17:49:00,404 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 123 transitions. [2020-09-04 17:49:00,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-09-04 17:49:00,406 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:00,406 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-04 17:49:00,407 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 17:49:00,412 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:00,412 INFO L82 PathProgramCache]: Analyzing trace with hash 1084443264, now seen corresponding path program 1 times [2020-09-04 17:49:00,413 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:00,413 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025065143] [2020-09-04 17:49:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:00,427 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:00,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:00,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:00,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025065143] [2020-09-04 17:49:00,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:00,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 17:49:00,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869070098] [2020-09-04 17:49:00,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 17:49:00,562 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:00,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 17:49:00,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 17:49:00,564 INFO L87 Difference]: Start difference. First operand 110 states and 123 transitions. Second operand 6 states. [2020-09-04 17:49:00,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:00,630 INFO L93 Difference]: Finished difference Result 150 states and 166 transitions. [2020-09-04 17:49:00,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 17:49:00,631 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 48 [2020-09-04 17:49:00,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:00,633 INFO L225 Difference]: With dead ends: 150 [2020-09-04 17:49:00,633 INFO L226 Difference]: Without dead ends: 70 [2020-09-04 17:49:00,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:49:00,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2020-09-04 17:49:00,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 69. [2020-09-04 17:49:00,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-04 17:49:00,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2020-09-04 17:49:00,649 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 48 [2020-09-04 17:49:00,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:00,649 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2020-09-04 17:49:00,657 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 17:49:00,657 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-09-04 17:49:00,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-04 17:49:00,659 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:00,659 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-04 17:49:00,659 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 17:49:00,659 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:00,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:00,660 INFO L82 PathProgramCache]: Analyzing trace with hash -1391225462, now seen corresponding path program 1 times [2020-09-04 17:49:00,660 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:00,661 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [894635909] [2020-09-04 17:49:00,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:00,667 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,770 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:00,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:49:00,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:00,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:00,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [894635909] [2020-09-04 17:49:00,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:00,790 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 17:49:00,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868402165] [2020-09-04 17:49:00,791 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 17:49:00,791 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:00,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 17:49:00,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:49:00,792 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 9 states. [2020-09-04 17:49:00,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:00,998 INFO L93 Difference]: Finished difference Result 96 states and 98 transitions. [2020-09-04 17:49:00,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 17:49:00,999 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-04 17:49:01,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:01,001 INFO L225 Difference]: With dead ends: 96 [2020-09-04 17:49:01,001 INFO L226 Difference]: Without dead ends: 94 [2020-09-04 17:49:01,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-04 17:49:01,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-09-04 17:49:01,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 69. [2020-09-04 17:49:01,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69 states. [2020-09-04 17:49:01,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 71 transitions. [2020-09-04 17:49:01,027 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 71 transitions. Word has length 50 [2020-09-04 17:49:01,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:01,027 INFO L479 AbstractCegarLoop]: Abstraction has 69 states and 71 transitions. [2020-09-04 17:49:01,027 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 17:49:01,028 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 71 transitions. [2020-09-04 17:49:01,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2020-09-04 17:49:01,033 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:01,033 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-09-04 17:49:01,033 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 17:49:01,035 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:01,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:01,036 INFO L82 PathProgramCache]: Analyzing trace with hash -798805526, now seen corresponding path program 1 times [2020-09-04 17:49:01,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:01,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1318834657] [2020-09-04 17:49:01,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:01,042 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:01,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:01,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-09-04 17:49:01,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:01,159 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1318834657] [2020-09-04 17:49:01,160 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:01,160 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 17:49:01,160 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [330926091] [2020-09-04 17:49:01,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 17:49:01,163 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:01,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 17:49:01,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 17:49:01,164 INFO L87 Difference]: Start difference. First operand 69 states and 71 transitions. Second operand 9 states. [2020-09-04 17:49:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:01,367 INFO L93 Difference]: Finished difference Result 94 states and 96 transitions. [2020-09-04 17:49:01,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 17:49:01,368 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 50 [2020-09-04 17:49:01,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:01,369 INFO L225 Difference]: With dead ends: 94 [2020-09-04 17:49:01,370 INFO L226 Difference]: Without dead ends: 92 [2020-09-04 17:49:01,377 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2020-09-04 17:49:01,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2020-09-04 17:49:01,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 67. [2020-09-04 17:49:01,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 67 states. [2020-09-04 17:49:01,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 67 states to 67 states and 69 transitions. [2020-09-04 17:49:01,405 INFO L78 Accepts]: Start accepts. Automaton has 67 states and 69 transitions. Word has length 50 [2020-09-04 17:49:01,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:01,405 INFO L479 AbstractCegarLoop]: Abstraction has 67 states and 69 transitions. [2020-09-04 17:49:01,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 17:49:01,408 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states and 69 transitions. [2020-09-04 17:49:01,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-09-04 17:49:01,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 17:49:01,409 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2020-09-04 17:49:01,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 17:49:01,411 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 17:49:01,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 17:49:01,412 INFO L82 PathProgramCache]: Analyzing trace with hash -1367702887, now seen corresponding path program 2 times [2020-09-04 17:49:01,412 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 17:49:01,412 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1502373417] [2020-09-04 17:49:01,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 17:49:01,422 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 17:49:01,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 17:49:01,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-04 17:49:01,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-04 17:49:01,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 17:49:01,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 17:49:01,557 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1502373417] [2020-09-04 17:49:01,557 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 17:49:01,558 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 17:49:01,558 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933999342] [2020-09-04 17:49:01,559 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 17:49:01,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 17:49:01,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 17:49:01,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 17:49:01,560 INFO L87 Difference]: Start difference. First operand 67 states and 69 transitions. Second operand 6 states. [2020-09-04 17:49:01,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 17:49:01,650 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2020-09-04 17:49:01,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 17:49:01,651 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-09-04 17:49:01,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 17:49:01,651 INFO L225 Difference]: With dead ends: 67 [2020-09-04 17:49:01,651 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 17:49:01,652 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=35, Invalid=55, Unknown=0, NotChecked=0, Total=90 [2020-09-04 17:49:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 17:49:01,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 17:49:01,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 17:49:01,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 17:49:01,654 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2020-09-04 17:49:01,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 17:49:01,654 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 17:49:01,654 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 17:49:01,654 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 17:49:01,655 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 17:49:01,655 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 17:49:01,658 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 17:49:03,360 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 34 [2020-09-04 17:49:03,507 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:49:03,507 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:49:03,507 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-09-04 17:49:03,507 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-04 17:49:03,508 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 17:49:03,508 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-09-04 17:49:03,508 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:03,508 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:03,509 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-04 17:49:03,509 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-04 17:49:03,510 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-09-04 17:49:03,510 INFO L264 CegarLoopResult]: At program point L35-2(lines 35 39) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 main_~j~0)) (.cse1 (<= 4000 main_~c1~0)) (.cse3 (<= main_~n~0 1)) (.cse2 (<= 2000 main_~c2~0)) (.cse4 (<= 10000 main_~c3~0))) (or (and .cse0 .cse1 (<= 1999 main_~k~0) (<= main_~n~0 main_~i~0) .cse2 .cse3 .cse4) (and .cse0 (<= main_~i~0 0) (<= main_~n~0 0)) (and .cse1 (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= main_~n~0 (+ main_~j~0 1)) .cse3 .cse2 .cse4))) [2020-09-04 17:49:03,511 INFO L271 CegarLoopResult]: At program point L35-3(lines 35 39) the Hoare annotation is: true [2020-09-04 17:49:03,511 INFO L264 CegarLoopResult]: At program point L27(lines 27 32) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,511 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 41) the Hoare annotation is: true [2020-09-04 17:49:03,511 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 33) the Hoare annotation is: (or (and (<= main_~i~0 0) (<= main_~n~0 0)) (and (<= 4000 main_~c1~0) (<= 2000 main_~k~0) (<= main_~n~0 main_~i~0) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0))) [2020-09-04 17:49:03,511 INFO L264 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,512 INFO L264 CegarLoopResult]: At program point L19-1(line 19) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,512 INFO L264 CegarLoopResult]: At program point L19-2(line 19) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,512 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (<= 4000 main_~c1~0) [2020-09-04 17:49:03,513 INFO L264 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= main_~n~0 (+ main_~j~0 1)) (<= main_~n~0 1) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,514 INFO L264 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= 2000 main_~c2~0) (<= main_~n~0 (+ main_~j~0 1)) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,514 INFO L264 CegarLoopResult]: At program point L32(line 32) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,515 INFO L264 CegarLoopResult]: At program point L28(line 28) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,515 INFO L264 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 0 main_~i~0) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,515 INFO L264 CegarLoopResult]: At program point L24-1(line 24) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 0 main_~i~0) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0) (<= 0 |main_#t~post1|)) [2020-09-04 17:49:03,515 INFO L264 CegarLoopResult]: At program point L24-2(line 24) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0) (<= 0 |main_#t~post1|)) [2020-09-04 17:49:03,515 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,516 INFO L271 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: true [2020-09-04 17:49:03,516 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0)) [2020-09-04 17:49:03,516 INFO L264 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= 2000 main_~c2~0) (<= main_~n~0 (+ main_~j~0 1)) (<= main_~n~0 (+ |main_#t~post3| 1)) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,516 INFO L264 CegarLoopResult]: At program point L37-1(line 37) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= main_~n~0 main_~j~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= 2000 main_~c2~0) (<= main_~n~0 (+ |main_#t~post3| 1)) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,516 INFO L264 CegarLoopResult]: At program point L29(lines 29 32) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,517 INFO L264 CegarLoopResult]: At program point L29-2(lines 23 33) the Hoare annotation is: (let ((.cse0 (<= 4000 main_~c1~0)) (.cse1 (<= 2000 main_~c2~0)) (.cse2 (<= 10000 main_~c3~0))) (or (and .cse0 (<= main_~i~0 0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 0 main_~i~0) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) .cse1 .cse2) (and .cse0 (<= 1 main_~i~0) (<= 2000 main_~k~0) .cse1 (<= main_~n~0 1) .cse2))) [2020-09-04 17:49:03,517 INFO L264 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,517 INFO L264 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,517 INFO L264 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,517 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,518 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,518 INFO L264 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,518 INFO L271 CegarLoopResult]: At program point L13(lines 13 41) the Hoare annotation is: true [2020-09-04 17:49:03,518 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 41) the Hoare annotation is: true [2020-09-04 17:49:03,518 INFO L264 CegarLoopResult]: At program point L38(line 38) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= main_~n~0 main_~j~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,518 INFO L264 CegarLoopResult]: At program point L38-1(line 38) the Hoare annotation is: (and (<= main_~n~0 main_~j~0) (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 2000 main_~k~0) (<= 2000 |main_#t~post4|) (<= main_~n~0 1) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,519 INFO L264 CegarLoopResult]: At program point L38-2(line 38) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= main_~n~0 main_~j~0) (<= 1 main_~i~0) (<= 1999 main_~k~0) (<= 2000 |main_#t~post4|) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,519 INFO L264 CegarLoopResult]: At program point L30(line 30) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= main_~n~0 1) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,519 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 41) the Hoare annotation is: true [2020-09-04 17:49:03,519 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 1 main_~i~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,520 INFO L271 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: true [2020-09-04 17:49:03,520 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 10000 (+ main_~c3~0 main_~k~0)) (<= 4000 (+ main_~c1~0 main_~k~0)) (<= 2000 (+ main_~c2~0 main_~k~0)) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,520 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,521 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,521 INFO L264 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: (and (<= 4000 main_~c1~0) (<= 2000 main_~c2~0) (<= 10000 main_~c3~0)) [2020-09-04 17:49:03,521 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-09-04 17:49:03,521 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-09-04 17:49:03,522 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:49:03,522 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:49:03,522 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:49:03,522 INFO L264 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-09-04 17:49:03,522 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-09-04 17:49:03,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 05:49:03 BoogieIcfgContainer [2020-09-04 17:49:03,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 17:49:03,554 INFO L168 Benchmark]: Toolchain (without parser) took 6615.92 ms. Allocated memory was 109.1 MB in the beginning and 239.1 MB in the end (delta: 130.0 MB). Free memory was 76.1 MB in the beginning and 127.0 MB in the end (delta: -50.9 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:03,555 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 109.1 MB. Free memory was 93.4 MB in the beginning and 93.3 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. [2020-09-04 17:49:03,556 INFO L168 Benchmark]: CACSL2BoogieTranslator took 337.15 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 66.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:03,557 INFO L168 Benchmark]: Boogie Preprocessor took 122.65 ms. Allocated memory was 109.1 MB in the beginning and 157.8 MB in the end (delta: 48.8 MB). Free memory was 66.2 MB in the beginning and 143.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:03,558 INFO L168 Benchmark]: RCFGBuilder took 481.47 ms. Allocated memory is still 157.8 MB. Free memory was 143.8 MB in the beginning and 127.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:03,559 INFO L168 Benchmark]: TraceAbstraction took 5668.10 ms. Allocated memory was 157.8 MB in the beginning and 239.1 MB in the end (delta: 81.3 MB). Free memory was 126.6 MB in the beginning and 127.0 MB in the end (delta: -354.7 kB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. [2020-09-04 17:49:03,563 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 109.1 MB. Free memory was 93.4 MB in the beginning and 93.3 MB in the end (delta: 105.1 kB). Peak memory consumption was 105.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 337.15 ms. Allocated memory is still 109.1 MB. Free memory was 75.9 MB in the beginning and 66.2 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.65 ms. Allocated memory was 109.1 MB in the beginning and 157.8 MB in the end (delta: 48.8 MB). Free memory was 66.2 MB in the beginning and 143.8 MB in the end (delta: -77.7 MB). Peak memory consumption was 9.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 481.47 ms. Allocated memory is still 157.8 MB. Free memory was 143.8 MB in the beginning and 127.1 MB in the end (delta: 16.7 MB). Peak memory consumption was 16.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5668.10 ms. Allocated memory was 157.8 MB in the beginning and 239.1 MB in the end (delta: 81.3 MB). Free memory was 126.6 MB in the beginning and 127.0 MB in the end (delta: -354.7 kB). Peak memory consumption was 95.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 23]: Loop Invariant Derived loop invariant: (((((((4000 <= c1 && i <= 0) && 10000 <= c3 + k) && 0 <= i) && 4000 <= c1 + k) && 2000 <= c2 + k) && 2000 <= c2) && 10000 <= c3) || (((((4000 <= c1 && 1 <= i) && 2000 <= k) && 2000 <= c2) && n <= 1) && 10000 <= c3) - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((((n <= j && 4000 <= c1) && 1999 <= k) && n <= i) && 2000 <= c2) && n <= 1) && 10000 <= c3) || ((n <= j && i <= 0) && n <= 0)) || ((((((4000 <= c1 && 1 <= i) && 2000 <= k) && n <= j + 1) && n <= 1) && 2000 <= c2) && 10000 <= c3) - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 60 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.6s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 564 SDtfs, 481 SDslu, 1894 SDs, 0 SdLazy, 481 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 133 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=110occurred 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: 0.2s AutomataMinimizationTime, 10 MinimizatonAttempts, 125 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 55 LocationsWithAnnotation, 97 PreInvPairs, 130 NumberOfFragments, 838 HoareAnnotationTreeSize, 97 FomulaSimplifications, 4365 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 55 FomulaSimplificationsInter, 798 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...