/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/loops/lu.cmp.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 14:53:47,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 14:53:47,429 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 14:53:47,449 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 14:53:47,449 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 14:53:47,452 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 14:53:47,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 14:53:47,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 14:53:47,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 14:53:47,471 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 14:53:47,474 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 14:53:47,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 14:53:47,475 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 14:53:47,478 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 14:53:47,481 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 14:53:47,483 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 14:53:47,486 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 14:53:47,488 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 14:53:47,490 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 14:53:47,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 14:53:47,501 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 14:53:47,505 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 14:53:47,506 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 14:53:47,508 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 14:53:47,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 14:53:47,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 14:53:47,524 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 14:53:47,526 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 14:53:47,527 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 14:53:47,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 14:53:47,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 14:53:47,538 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 14:53:47,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 14:53:47,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 14:53:47,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 14:53:47,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 14:53:47,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 14:53:47,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 14:53:47,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 14:53:47,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 14:53:47,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 14:53:47,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 14:53:47,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 14:53:47,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 14:53:47,541 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 14:53:47,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 14:53:47,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 14:53:47,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 14:53:47,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 14:53:47,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 14:53:47,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 14:53:47,543 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-17 14:53:47,830 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 14:53:47,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 14:53:47,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 14:53:47,849 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 14:53:47,850 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 14:53:47,851 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/lu.cmp.c [2020-07-17 14:53:47,927 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9796cfbd3/cc22fbe49c664cc4839382727bc49708/FLAGb05aa4b07 [2020-07-17 14:53:48,402 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 14:53:48,403 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/lu.cmp.c [2020-07-17 14:53:48,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9796cfbd3/cc22fbe49c664cc4839382727bc49708/FLAGb05aa4b07 [2020-07-17 14:53:48,751 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9796cfbd3/cc22fbe49c664cc4839382727bc49708 [2020-07-17 14:53:48,762 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 14:53:48,765 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 14:53:48,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 14:53:48,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 14:53:48,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 14:53:48,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:53:48" (1/1) ... [2020-07-17 14:53:48,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c454dca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:48, skipping insertion in model container [2020-07-17 14:53:48,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 02:53:48" (1/1) ... [2020-07-17 14:53:48,783 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 14:53:48,808 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 14:53:49,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:53:49,024 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 14:53:49,182 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 14:53:49,201 INFO L208 MainTranslator]: Completed translation [2020-07-17 14:53:49,201 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49 WrapperNode [2020-07-17 14:53:49,202 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 14:53:49,202 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 14:53:49,202 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 14:53:49,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 14:53:49,213 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,242 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,255 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (1/1) ... [2020-07-17 14:53:49,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 14:53:49,262 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 14:53:49,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 14:53:49,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 14:53:49,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (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 [2020-07-17 14:53:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 14:53:49,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 14:53:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 14:53:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs [2020-07-17 14:53:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 14:53:49,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ludcmp [2020-07-17 14:53:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 14:53:49,339 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 14:53:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure ludcmp [2020-07-17 14:53:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure fabs [2020-07-17 14:53:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 14:53:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-17 14:53:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-17 14:53:49,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-17 14:53:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-17 14:53:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 14:53:49,341 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 14:53:49,949 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 14:53:49,949 INFO L295 CfgBuilder]: Removed 11 assume(true) statements. [2020-07-17 14:53:49,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:53:49 BoogieIcfgContainer [2020-07-17 14:53:49,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 14:53:49,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 14:53:49,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 14:53:49,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 14:53:49,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 02:53:48" (1/3) ... [2020-07-17 14:53:49,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7902d911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:53:49, skipping insertion in model container [2020-07-17 14:53:49,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 02:53:49" (2/3) ... [2020-07-17 14:53:49,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7902d911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 02:53:49, skipping insertion in model container [2020-07-17 14:53:49,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 02:53:49" (3/3) ... [2020-07-17 14:53:49,966 INFO L109 eAbstractionObserver]: Analyzing ICFG lu.cmp.c [2020-07-17 14:53:49,978 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 14:53:49,987 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 14:53:50,002 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 14:53:50,027 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 14:53:50,027 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 14:53:50,027 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-17 14:53:50,027 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 14:53:50,028 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 14:53:50,029 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 14:53:50,029 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 14:53:50,029 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 14:53:50,051 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states. [2020-07-17 14:53:50,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2020-07-17 14:53:50,063 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:53:50,065 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] [2020-07-17 14:53:50,065 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:53:50,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:53:50,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1445504148, now seen corresponding path program 1 times [2020-07-17 14:53:50,083 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:53:50,083 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1422683909] [2020-07-17 14:53:50,084 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:53:50,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:50,387 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:53:50,391 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:53:50,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1422683909] [2020-07-17 14:53:50,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:53:50,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:53:50,403 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165049212] [2020-07-17 14:53:50,409 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:53:50,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:53:50,423 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:53:50,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:53:50,427 INFO L87 Difference]: Start difference. First operand 186 states. Second operand 5 states. [2020-07-17 14:53:51,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:53:51,085 INFO L93 Difference]: Finished difference Result 367 states and 432 transitions. [2020-07-17 14:53:51,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 14:53:51,087 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 30 [2020-07-17 14:53:51,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:53:51,096 INFO L225 Difference]: With dead ends: 367 [2020-07-17 14:53:51,096 INFO L226 Difference]: Without dead ends: 64 [2020-07-17 14:53:51,103 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:53:51,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-17 14:53:51,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 49. [2020-07-17 14:53:51,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 49 states. [2020-07-17 14:53:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2020-07-17 14:53:51,151 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 30 [2020-07-17 14:53:51,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:53:51,152 INFO L479 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2020-07-17 14:53:51,152 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:53:51,152 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2020-07-17 14:53:51,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-07-17 14:53:51,154 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:53:51,154 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] [2020-07-17 14:53:51,154 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 14:53:51,154 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:53:51,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:53:51,155 INFO L82 PathProgramCache]: Analyzing trace with hash -905808642, now seen corresponding path program 1 times [2020-07-17 14:53:51,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:53:51,156 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [197492167] [2020-07-17 14:53:51,156 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:53:51,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:51,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:51,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:53:51,300 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:53:51,301 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [197492167] [2020-07-17 14:53:51,301 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:53:51,301 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-17 14:53:51,302 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334745266] [2020-07-17 14:53:51,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-17 14:53:51,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:53:51,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-17 14:53:51,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-17 14:53:51,304 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand 5 states. [2020-07-17 14:53:51,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:53:51,527 INFO L93 Difference]: Finished difference Result 103 states and 111 transitions. [2020-07-17 14:53:51,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 14:53:51,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 39 [2020-07-17 14:53:51,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:53:51,531 INFO L225 Difference]: With dead ends: 103 [2020-07-17 14:53:51,532 INFO L226 Difference]: Without dead ends: 76 [2020-07-17 14:53:51,534 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:53:51,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2020-07-17 14:53:51,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 55. [2020-07-17 14:53:51,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2020-07-17 14:53:51,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 57 transitions. [2020-07-17 14:53:51,556 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 57 transitions. Word has length 39 [2020-07-17 14:53:51,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:53:51,557 INFO L479 AbstractCegarLoop]: Abstraction has 55 states and 57 transitions. [2020-07-17 14:53:51,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-17 14:53:51,557 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 57 transitions. [2020-07-17 14:53:51,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-07-17 14:53:51,559 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:53:51,559 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] [2020-07-17 14:53:51,560 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 14:53:51,560 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:53:51,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:53:51,560 INFO L82 PathProgramCache]: Analyzing trace with hash -361483259, now seen corresponding path program 1 times [2020-07-17 14:53:51,561 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:53:51,561 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1124485959] [2020-07-17 14:53:51,561 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:53:51,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:51,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:51,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:53:51,729 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:53:51,730 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1124485959] [2020-07-17 14:53:51,730 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:53:51,730 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 14:53:51,731 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055564680] [2020-07-17 14:53:51,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 14:53:51,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:53:51,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 14:53:51,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 14:53:51,734 INFO L87 Difference]: Start difference. First operand 55 states and 57 transitions. Second operand 6 states. [2020-07-17 14:53:52,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:53:52,034 INFO L93 Difference]: Finished difference Result 77 states and 81 transitions. [2020-07-17 14:53:52,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-17 14:53:52,035 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 42 [2020-07-17 14:53:52,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:53:52,037 INFO L225 Difference]: With dead ends: 77 [2020-07-17 14:53:52,037 INFO L226 Difference]: Without dead ends: 75 [2020-07-17 14:53:52,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-07-17 14:53:52,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2020-07-17 14:53:52,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 72. [2020-07-17 14:53:52,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-17 14:53:52,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2020-07-17 14:53:52,054 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 42 [2020-07-17 14:53:52,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:53:52,055 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2020-07-17 14:53:52,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 14:53:52,055 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2020-07-17 14:53:52,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-07-17 14:53:52,057 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:53:52,057 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-07-17 14:53:52,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 14:53:52,058 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:53:52,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:53:52,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1960696442, now seen corresponding path program 1 times [2020-07-17 14:53:52,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:53:52,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1251717442] [2020-07-17 14:53:52,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:53:52,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:52,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:52,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:52,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:53:52,203 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_60| (Array Int (Array Int Real)))) (= (store |v_#memory_real_60| |c_~#b~0.base| (store (select |v_#memory_real_60| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)) |c_#memory_real|)) is different from true [2020-07-17 14:53:52,259 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_60| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_60| |c_~#b~0.base| (store (select |v_#memory_real_60| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8) (- 8)) c_main_~w~0)))) is different from true [2020-07-17 14:53:53,161 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:53:53,162 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1251717442] [2020-07-17 14:53:53,162 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:53:53,163 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [26] imperfect sequences [] total 26 [2020-07-17 14:53:53,163 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90662232] [2020-07-17 14:53:53,163 INFO L459 AbstractCegarLoop]: Interpolant automaton has 26 states [2020-07-17 14:53:53,164 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:53:53,164 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2020-07-17 14:53:53,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=470, Unknown=24, NotChecked=90, Total=650 [2020-07-17 14:53:53,165 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand 26 states. [2020-07-17 14:53:55,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:53:55,639 INFO L93 Difference]: Finished difference Result 154 states and 166 transitions. [2020-07-17 14:53:55,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-17 14:53:55,640 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 64 [2020-07-17 14:53:55,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:53:55,643 INFO L225 Difference]: With dead ends: 154 [2020-07-17 14:53:55,643 INFO L226 Difference]: Without dead ends: 122 [2020-07-17 14:53:55,647 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 44 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 365 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=209, Invalid=1589, Unknown=102, NotChecked=170, Total=2070 [2020-07-17 14:53:55,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2020-07-17 14:53:55,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 94. [2020-07-17 14:53:55,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-17 14:53:55,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 99 transitions. [2020-07-17 14:53:55,685 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 99 transitions. Word has length 64 [2020-07-17 14:53:55,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:53:55,687 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 99 transitions. [2020-07-17 14:53:55,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 26 states. [2020-07-17 14:53:55,687 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 99 transitions. [2020-07-17 14:53:55,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-17 14:53:55,690 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:53:55,690 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 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] [2020-07-17 14:53:55,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 14:53:55,691 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:53:55,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:53:55,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1491522468, now seen corresponding path program 2 times [2020-07-17 14:53:55,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:53:55,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [620875156] [2020-07-17 14:53:55,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:53:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:55,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:53:55,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:53:55,917 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_67| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_67| |c_~#b~0.base| (store (select |v_#memory_real_67| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:53:55,970 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_67| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_67| |c_~#b~0.base| (store (select |v_#memory_real_67| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8) (- 8)) c_main_~w~0)))) is different from true [2020-07-17 14:53:57,753 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:53:57,754 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [620875156] [2020-07-17 14:53:57,754 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:53:57,754 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2020-07-17 14:53:57,754 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504363786] [2020-07-17 14:53:57,755 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-17 14:53:57,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:53:57,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-17 14:53:57,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=930, Unknown=40, NotChecked=126, Total=1190 [2020-07-17 14:53:57,756 INFO L87 Difference]: Start difference. First operand 94 states and 99 transitions. Second operand 35 states. [2020-07-17 14:54:01,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:01,842 INFO L93 Difference]: Finished difference Result 207 states and 223 transitions. [2020-07-17 14:54:01,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-17 14:54:01,843 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 82 [2020-07-17 14:54:01,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:01,849 INFO L225 Difference]: With dead ends: 207 [2020-07-17 14:54:01,849 INFO L226 Difference]: Without dead ends: 163 [2020-07-17 14:54:01,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 63 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 890 ImplicationChecksByTransitivity, 4.1s TimeCoverageRelationStatistics Valid=371, Invalid=3371, Unknown=172, NotChecked=246, Total=4160 [2020-07-17 14:54:01,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2020-07-17 14:54:01,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 118. [2020-07-17 14:54:01,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2020-07-17 14:54:01,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 125 transitions. [2020-07-17 14:54:01,881 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 125 transitions. Word has length 82 [2020-07-17 14:54:01,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:01,881 INFO L479 AbstractCegarLoop]: Abstraction has 118 states and 125 transitions. [2020-07-17 14:54:01,881 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-17 14:54:01,882 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 125 transitions. [2020-07-17 14:54:01,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-07-17 14:54:01,883 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:01,883 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 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] [2020-07-17 14:54:01,884 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 14:54:01,884 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:01,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:01,884 INFO L82 PathProgramCache]: Analyzing trace with hash 2108507974, now seen corresponding path program 3 times [2020-07-17 14:54:01,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:01,885 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1418550348] [2020-07-17 14:54:01,885 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:01,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:02,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:02,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:02,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:54:02,080 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_76| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_76| |c_~#b~0.base| (store (select |v_#memory_real_76| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:02,126 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_76| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_76| |c_~#b~0.base| (store (select |v_#memory_real_76| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8) (- 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:05,302 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:05,303 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1418550348] [2020-07-17 14:54:05,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:05,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [44] imperfect sequences [] total 44 [2020-07-17 14:54:05,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875972713] [2020-07-17 14:54:05,304 INFO L459 AbstractCegarLoop]: Interpolant automaton has 44 states [2020-07-17 14:54:05,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:05,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2020-07-17 14:54:05,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1550, Unknown=56, NotChecked=162, Total=1892 [2020-07-17 14:54:05,305 INFO L87 Difference]: Start difference. First operand 118 states and 125 transitions. Second operand 44 states. [2020-07-17 14:54:11,481 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2020-07-17 14:54:11,810 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-07-17 14:54:12,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:12,602 INFO L93 Difference]: Finished difference Result 260 states and 280 transitions. [2020-07-17 14:54:12,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2020-07-17 14:54:12,604 INFO L78 Accepts]: Start accepts. Automaton has 44 states. Word has length 100 [2020-07-17 14:54:12,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:12,606 INFO L225 Difference]: With dead ends: 260 [2020-07-17 14:54:12,607 INFO L226 Difference]: Without dead ends: 204 [2020-07-17 14:54:12,609 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 82 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1659 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=570, Invalid=5837, Unknown=243, NotChecked=322, Total=6972 [2020-07-17 14:54:12,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2020-07-17 14:54:12,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 142. [2020-07-17 14:54:12,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 142 states. [2020-07-17 14:54:12,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 151 transitions. [2020-07-17 14:54:12,639 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 151 transitions. Word has length 100 [2020-07-17 14:54:12,640 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:12,640 INFO L479 AbstractCegarLoop]: Abstraction has 142 states and 151 transitions. [2020-07-17 14:54:12,640 INFO L480 AbstractCegarLoop]: Interpolant automaton has 44 states. [2020-07-17 14:54:12,640 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 151 transitions. [2020-07-17 14:54:12,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-07-17 14:54:12,642 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:12,642 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 7, 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] [2020-07-17 14:54:12,642 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 14:54:12,642 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:12,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:12,643 INFO L82 PathProgramCache]: Analyzing trace with hash 1471539684, now seen corresponding path program 4 times [2020-07-17 14:54:12,643 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:12,643 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [361296070] [2020-07-17 14:54:12,644 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:12,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:12,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:12,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:12,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:54:12,836 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:12,836 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [361296070] [2020-07-17 14:54:12,836 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:12,836 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-17 14:54:12,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718377995] [2020-07-17 14:54:12,837 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-17 14:54:12,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:12,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-17 14:54:12,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-17 14:54:12,838 INFO L87 Difference]: Start difference. First operand 142 states and 151 transitions. Second operand 8 states. [2020-07-17 14:54:13,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:13,245 INFO L93 Difference]: Finished difference Result 208 states and 222 transitions. [2020-07-17 14:54:13,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-17 14:54:13,246 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 118 [2020-07-17 14:54:13,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:13,248 INFO L225 Difference]: With dead ends: 208 [2020-07-17 14:54:13,248 INFO L226 Difference]: Without dead ends: 206 [2020-07-17 14:54:13,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2020-07-17 14:54:13,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2020-07-17 14:54:13,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 203. [2020-07-17 14:54:13,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 203 states. [2020-07-17 14:54:13,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 217 transitions. [2020-07-17 14:54:13,296 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 217 transitions. Word has length 118 [2020-07-17 14:54:13,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:13,297 INFO L479 AbstractCegarLoop]: Abstraction has 203 states and 217 transitions. [2020-07-17 14:54:13,297 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-17 14:54:13,297 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 217 transitions. [2020-07-17 14:54:13,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-07-17 14:54:13,299 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:13,299 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 11, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:54:13,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 14:54:13,300 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:13,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:13,300 INFO L82 PathProgramCache]: Analyzing trace with hash 2112155237, now seen corresponding path program 5 times [2020-07-17 14:54:13,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:13,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1338312055] [2020-07-17 14:54:13,301 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:13,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:13,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:13,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:13,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:13,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:54:13,514 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_94| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_94| |c_~#b~0.base| (store (select |v_#memory_real_94| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:13,559 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_94| (Array Int (Array Int Real)))) (= (store |v_#memory_real_94| |c_~#b~0.base| (store (select |v_#memory_real_94| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8) (- 8)) c_main_~w~0)) |c_#memory_real|)) is different from true [2020-07-17 14:54:17,751 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:54:18,592 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:54:19,410 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_99| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_99| |c_~#b~0.base| (store (select |v_#memory_real_99| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:21,447 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:21,447 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1338312055] [2020-07-17 14:54:21,447 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:21,448 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [54] imperfect sequences [] total 54 [2020-07-17 14:54:21,448 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11579717] [2020-07-17 14:54:21,449 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-07-17 14:54:21,449 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:21,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-07-17 14:54:21,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=2331, Unknown=73, NotChecked=300, Total=2862 [2020-07-17 14:54:21,450 INFO L87 Difference]: Start difference. First operand 203 states and 217 transitions. Second operand 54 states. [2020-07-17 14:54:29,633 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2020-07-17 14:54:30,982 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-07-17 14:54:31,743 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-07-17 14:54:32,561 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-07-17 14:54:33,874 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-07-17 14:54:34,640 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-07-17 14:54:35,216 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-07-17 14:54:35,929 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2020-07-17 14:54:36,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:54:36,485 INFO L93 Difference]: Finished difference Result 516 states and 557 transitions. [2020-07-17 14:54:36,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2020-07-17 14:54:36,486 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 167 [2020-07-17 14:54:36,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:54:36,490 INFO L225 Difference]: With dead ends: 516 [2020-07-17 14:54:36,490 INFO L226 Difference]: Without dead ends: 387 [2020-07-17 14:54:36,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 162 GetRequests, 49 SyntacticMatches, 11 SemanticMatches, 102 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 2851 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=808, Invalid=8988, Unknown=316, NotChecked=600, Total=10712 [2020-07-17 14:54:36,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 387 states. [2020-07-17 14:54:36,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 387 to 239. [2020-07-17 14:54:36,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 239 states. [2020-07-17 14:54:36,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 256 transitions. [2020-07-17 14:54:36,548 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 256 transitions. Word has length 167 [2020-07-17 14:54:36,548 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:54:36,548 INFO L479 AbstractCegarLoop]: Abstraction has 239 states and 256 transitions. [2020-07-17 14:54:36,548 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-07-17 14:54:36,548 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 256 transitions. [2020-07-17 14:54:36,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-07-17 14:54:36,551 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:54:36,551 INFO L422 BasicCegarLoop]: trace histogram [15, 15, 15, 15, 15, 15, 15, 15, 14, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:54:36,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 14:54:36,551 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:54:36,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:54:36,552 INFO L82 PathProgramCache]: Analyzing trace with hash 917121735, now seen corresponding path program 6 times [2020-07-17 14:54:36,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:54:36,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061736592] [2020-07-17 14:54:36,552 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:54:36,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:36,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:36,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:36,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:54:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:54:36,881 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_112| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_112| |c_~#b~0.base| (store (select |v_#memory_real_112| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:36,958 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_112| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_112| |c_~#b~0.base| (store (select |v_#memory_real_112| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8) (- 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:40,777 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2020-07-17 14:54:42,153 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-17 14:54:42,619 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:54:43,088 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2020-07-17 14:54:44,212 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-07-17 14:54:45,064 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:54:46,022 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:54:47,020 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-17 14:54:48,061 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2020-07-17 14:54:48,989 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-07-17 14:54:49,832 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:54:50,793 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:54:50,797 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_118| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_118| |c_~#b~0.base| (store (select |v_#memory_real_118| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:54:54,795 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-17 14:54:55,702 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-07-17 14:54:55,708 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:54:55,709 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061736592] [2020-07-17 14:54:55,709 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:54:55,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-07-17 14:54:55,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312429614] [2020-07-17 14:54:55,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-17 14:54:55,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:54:55,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-17 14:54:55,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=218, Invalid=3243, Unknown=91, NotChecked=354, Total=3906 [2020-07-17 14:54:55,713 INFO L87 Difference]: Start difference. First operand 239 states and 256 transitions. Second operand 63 states. [2020-07-17 14:55:04,313 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2020-07-17 14:55:04,883 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2020-07-17 14:55:05,763 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2020-07-17 14:55:06,246 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2020-07-17 14:55:07,193 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2020-07-17 14:55:08,104 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2020-07-17 14:55:09,034 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2020-07-17 14:55:10,175 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-07-17 14:55:11,660 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2020-07-17 14:55:12,655 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-07-17 14:55:13,516 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-07-17 14:55:15,028 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2020-07-17 14:55:16,869 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-07-17 14:55:18,999 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2020-07-17 14:55:21,317 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-07-17 14:55:24,964 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90 [2020-07-17 14:55:27,269 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-07-17 14:55:29,008 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85 [2020-07-17 14:55:31,153 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2020-07-17 14:55:32,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:55:32,529 INFO L93 Difference]: Finished difference Result 580 states and 625 transitions. [2020-07-17 14:55:32,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2020-07-17 14:55:32,531 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 194 [2020-07-17 14:55:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:55:32,535 INFO L225 Difference]: With dead ends: 580 [2020-07-17 14:55:32,535 INFO L226 Difference]: Without dead ends: 427 [2020-07-17 14:55:32,539 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 193 GetRequests, 58 SyntacticMatches, 14 SemanticMatches, 121 ConstructedPredicates, 3 IntricatePredicates, 0 DeprecatedPredicates, 4544 ImplicationChecksByTransitivity, 41.0s TimeCoverageRelationStatistics Valid=1104, Invalid=12799, Unknown=389, NotChecked=714, Total=15006 [2020-07-17 14:55:32,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2020-07-17 14:55:32,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 275. [2020-07-17 14:55:32,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275 states. [2020-07-17 14:55:32,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 295 transitions. [2020-07-17 14:55:32,613 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 295 transitions. Word has length 194 [2020-07-17 14:55:32,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:55:32,613 INFO L479 AbstractCegarLoop]: Abstraction has 275 states and 295 transitions. [2020-07-17 14:55:32,613 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-17 14:55:32,613 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 295 transitions. [2020-07-17 14:55:32,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-07-17 14:55:32,616 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:55:32,616 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 17, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:55:32,616 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 14:55:32,617 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:55:32,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:55:32,617 INFO L82 PathProgramCache]: Analyzing trace with hash 374306853, now seen corresponding path program 7 times [2020-07-17 14:55:32,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:55:32,617 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470337739] [2020-07-17 14:55:32,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:55:32,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:32,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:32,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:55:32,980 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:55:32,991 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_132| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_132| |c_~#b~0.base| (store (select |v_#memory_real_132| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8)) c_main_~w~0)))) is different from true [2020-07-17 14:55:33,087 WARN L860 $PredicateComparison]: unable to prove that (exists ((|v_#memory_real_132| (Array Int (Array Int Real)))) (= |c_#memory_real| (store |v_#memory_real_132| |c_~#b~0.base| (store (select |v_#memory_real_132| |c_~#b~0.base|) (+ |c_~#b~0.offset| (* c_main_~i~0 8) (- 8)) c_main_~w~0)))) is different from true [2020-07-17 14:55:37,896 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2020-07-17 14:55:38,466 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2020-07-17 14:55:39,048 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-07-17 14:55:39,621 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-07-17 14:55:40,258 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:55:40,842 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 75 [2020-07-17 14:55:41,476 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-07-17 14:55:42,247 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2020-07-17 14:55:43,311 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-07-17 14:55:44,395 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2020-07-17 14:55:45,612 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2020-07-17 14:55:46,753 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:55:48,012 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2020-07-17 14:55:49,114 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2020-07-17 14:55:50,572 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2020-07-17 14:55:52,540 WARN L193 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-07-17 14:55:54,581 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-07-17 14:55:56,704 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-07-17 14:55:58,922 WARN L193 SmtUtils]: Spent 727.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:56:01,473 WARN L193 SmtUtils]: Spent 752.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-07-17 14:56:04,153 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-07-17 14:56:06,772 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-07-17 14:56:09,063 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 105 [2020-07-17 14:56:11,506 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-07-17 14:56:11,517 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:56:11,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [470337739] [2020-07-17 14:56:11,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:56:11,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [63] imperfect sequences [] total 63 [2020-07-17 14:56:11,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308166683] [2020-07-17 14:56:11,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 63 states [2020-07-17 14:56:11,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:56:11,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2020-07-17 14:56:11,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=3389, Unknown=105, NotChecked=238, Total=3906 [2020-07-17 14:56:11,521 INFO L87 Difference]: Start difference. First operand 275 states and 295 transitions. Second operand 63 states. [2020-07-17 14:56:21,714 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-07-17 14:56:25,720 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2020-07-17 14:56:33,270 WARN L193 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2020-07-17 14:56:49,238 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2020-07-17 14:57:08,285 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification that was a NOOP. DAG size: 133 [2020-07-17 14:57:16,872 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification that was a NOOP. DAG size: 135 [2020-07-17 14:57:32,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:57:32,348 INFO L93 Difference]: Finished difference Result 750 states and 803 transitions. [2020-07-17 14:57:32,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2020-07-17 14:57:32,353 INFO L78 Accepts]: Start accepts. Automaton has 63 states. Word has length 221 [2020-07-17 14:57:32,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:57:32,359 INFO L225 Difference]: With dead ends: 750 [2020-07-17 14:57:32,359 INFO L226 Difference]: Without dead ends: 588 [2020-07-17 14:57:32,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 152 GetRequests, 61 SyntacticMatches, 2 SemanticMatches, 89 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 1990 ImplicationChecksByTransitivity, 53.4s TimeCoverageRelationStatistics Valid=331, Invalid=7307, Unknown=202, NotChecked=350, Total=8190 [2020-07-17 14:57:32,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 588 states. [2020-07-17 14:57:32,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 588 to 402. [2020-07-17 14:57:32,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 402 states. [2020-07-17 14:57:32,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 432 transitions. [2020-07-17 14:57:32,482 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 432 transitions. Word has length 221 [2020-07-17 14:57:32,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:57:32,482 INFO L479 AbstractCegarLoop]: Abstraction has 402 states and 432 transitions. [2020-07-17 14:57:32,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 63 states. [2020-07-17 14:57:32,482 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 432 transitions. [2020-07-17 14:57:32,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-07-17 14:57:32,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 14:57:32,486 INFO L422 BasicCegarLoop]: trace histogram [18, 18, 18, 18, 18, 18, 18, 18, 15, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 14:57:32,486 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 14:57:32,486 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 14:57:32,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 14:57:32,487 INFO L82 PathProgramCache]: Analyzing trace with hash 1410924985, now seen corresponding path program 8 times [2020-07-17 14:57:32,487 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 14:57:32,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1766871440] [2020-07-17 14:57:32,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 14:57:32,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:57:32,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:57:32,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:57:32,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 14:57:32,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 14:57:32,786 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-17 14:57:32,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1766871440] [2020-07-17 14:57:32,787 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 14:57:32,787 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-17 14:57:32,787 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003909983] [2020-07-17 14:57:32,788 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-17 14:57:32,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 14:57:32,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-17 14:57:32,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-17 14:57:32,789 INFO L87 Difference]: Start difference. First operand 402 states and 432 transitions. Second operand 7 states. [2020-07-17 14:57:33,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 14:57:33,526 INFO L93 Difference]: Finished difference Result 402 states and 432 transitions. [2020-07-17 14:57:33,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-17 14:57:33,530 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 227 [2020-07-17 14:57:33,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 14:57:33,531 INFO L225 Difference]: With dead ends: 402 [2020-07-17 14:57:33,531 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 14:57:33,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2020-07-17 14:57:33,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 14:57:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 14:57:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 14:57:33,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 14:57:33,534 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 227 [2020-07-17 14:57:33,534 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 14:57:33,534 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 14:57:33,534 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-17 14:57:33,534 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 14:57:33,534 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 14:57:33,535 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-17 14:57:33,537 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 14:57:33,938 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 493 DAG size of output: 298 [2020-07-17 14:57:34,214 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 517 DAG size of output: 264 [2020-07-17 14:57:34,849 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 592 DAG size of output: 255 [2020-07-17 14:57:35,194 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 595 DAG size of output: 315 [2020-07-17 14:57:35,810 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 591 DAG size of output: 359 [2020-07-17 14:57:35,975 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 491 DAG size of output: 235 [2020-07-17 14:57:36,103 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 491 DAG size of output: 235 [2020-07-17 14:57:36,245 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 491 DAG size of output: 235 [2020-07-17 14:57:36,385 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 511 DAG size of output: 236 [2020-07-17 14:57:36,551 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 483 DAG size of output: 391 [2020-07-17 14:57:36,853 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 599 DAG size of output: 410 [2020-07-17 14:57:37,090 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 588 DAG size of output: 308 [2020-07-17 14:57:37,501 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 32 [2020-07-17 14:57:39,124 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 295 DAG size of output: 9 [2020-07-17 14:57:39,803 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 9 [2020-07-17 14:57:39,981 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 7 [2020-07-17 14:57:40,168 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 7 [2020-07-17 14:57:40,516 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 33 [2020-07-17 14:57:43,216 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 245 DAG size of output: 9 [2020-07-17 14:57:45,948 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 300 DAG size of output: 9 [2020-07-17 14:57:46,560 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 7 [2020-07-17 14:57:49,323 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 347 DAG size of output: 9 [2020-07-17 14:57:50,270 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 10 [2020-07-17 14:57:51,264 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 10 [2020-07-17 14:57:52,163 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 10 [2020-07-17 14:57:53,492 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 234 DAG size of output: 7 [2020-07-17 14:57:58,334 WARN L193 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 385 DAG size of output: 7 [2020-07-17 14:58:03,175 WARN L193 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 396 DAG size of output: 9 [2020-07-17 14:58:05,335 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 301 DAG size of output: 9 [2020-07-17 14:58:05,652 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 36 [2020-07-17 14:58:05,800 INFO L271 CegarLoopResult]: At program point L118(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,801 INFO L271 CegarLoopResult]: At program point L118-1(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,801 INFO L271 CegarLoopResult]: At program point L118-2(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,801 INFO L271 CegarLoopResult]: At program point L118-3(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,801 INFO L271 CegarLoopResult]: At program point L118-4(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,801 INFO L271 CegarLoopResult]: At program point L118-5(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,801 INFO L271 CegarLoopResult]: At program point L118-6(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L118-7(line 118) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L135(line 135) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L135-1(line 135) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L119(line 119) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L119-3(lines 119 126) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L119-4(line 119) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L119-5(line 119) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L119-6(lines 119 126) the Hoare annotation is: true [2020-07-17 14:58:05,802 INFO L271 CegarLoopResult]: At program point L119-7(lines 119 126) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point L136(line 136) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point L136-3(line 136) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point L136-4(line 136) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point L136-5(lines 136 142) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point L136-6(lines 136 142) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point ludcmpEXIT(lines 109 153) the Hoare annotation is: true [2020-07-17 14:58:05,803 INFO L264 CegarLoopResult]: At program point ludcmpENTRY(lines 109 153) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,803 INFO L271 CegarLoopResult]: At program point L121(line 121) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L121-1(line 121) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L121-2(line 121) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L138(line 138) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L138-1(line 138) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L138-2(line 138) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L122(lines 122 124) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L122-1(lines 122 124) the Hoare annotation is: true [2020-07-17 14:58:05,804 INFO L271 CegarLoopResult]: At program point L139(line 139) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L139-3(lines 139 140) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L139-4(line 139) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L139-5(line 139) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L139-6(lines 139 140) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L139-7(lines 139 140) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L123(line 123) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L123-3(lines 123 124) the Hoare annotation is: true [2020-07-17 14:58:05,805 INFO L271 CegarLoopResult]: At program point L123-4(line 123) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L123-5(line 123) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L123-6(lines 123 124) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L140(line 140) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L140-1(line 140) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L140-2(line 140) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L140-3(line 140) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L140-4(line 140) the Hoare annotation is: true [2020-07-17 14:58:05,806 INFO L271 CegarLoopResult]: At program point L124(line 124) the Hoare annotation is: true [2020-07-17 14:58:05,807 INFO L271 CegarLoopResult]: At program point L124-1(line 124) the Hoare annotation is: true [2020-07-17 14:58:05,807 INFO L271 CegarLoopResult]: At program point L124-2(line 124) the Hoare annotation is: true [2020-07-17 14:58:05,808 INFO L271 CegarLoopResult]: At program point L124-3(line 124) the Hoare annotation is: true [2020-07-17 14:58:05,808 INFO L271 CegarLoopResult]: At program point L124-4(line 124) the Hoare annotation is: true [2020-07-17 14:58:05,808 INFO L271 CegarLoopResult]: At program point L141(lines 136 142) the Hoare annotation is: true [2020-07-17 14:58:05,809 INFO L271 CegarLoopResult]: At program point L125(line 125) the Hoare annotation is: true [2020-07-17 14:58:05,809 INFO L271 CegarLoopResult]: At program point L125-1(line 125) the Hoare annotation is: true [2020-07-17 14:58:05,809 INFO L264 CegarLoopResult]: At program point L109(lines 109 153) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,809 INFO L264 CegarLoopResult]: At program point L109-1(lines 109 153) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,809 INFO L271 CegarLoopResult]: At program point L143(line 143) the Hoare annotation is: true [2020-07-17 14:58:05,809 INFO L271 CegarLoopResult]: At program point L143-1(line 143) the Hoare annotation is: true [2020-07-17 14:58:05,809 INFO L271 CegarLoopResult]: At program point L143-2(line 143) the Hoare annotation is: true [2020-07-17 14:58:05,809 INFO L271 CegarLoopResult]: At program point L143-3(line 143) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L127-2(line 127) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L127-3(line 127) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L127-4(lines 127 133) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L144(line 144) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L144-3(lines 144 150) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L144-4(line 144) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L144-5(line 144) the Hoare annotation is: true [2020-07-17 14:58:05,810 INFO L271 CegarLoopResult]: At program point L144-6(lines 144 150) the Hoare annotation is: true [2020-07-17 14:58:05,811 INFO L271 CegarLoopResult]: At program point L144-7(lines 144 150) the Hoare annotation is: true [2020-07-17 14:58:05,811 INFO L264 CegarLoopResult]: At program point L112(line 112) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,811 INFO L264 CegarLoopResult]: At program point L112-1(line 112) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,811 INFO L264 CegarLoopResult]: At program point L112-2(line 112) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,811 INFO L271 CegarLoopResult]: At program point L129(line 129) the Hoare annotation is: true [2020-07-17 14:58:05,811 INFO L271 CegarLoopResult]: At program point L129-1(line 129) the Hoare annotation is: true [2020-07-17 14:58:05,811 INFO L271 CegarLoopResult]: At program point L129-2(line 129) the Hoare annotation is: true [2020-07-17 14:58:05,812 INFO L271 CegarLoopResult]: At program point L146(line 146) the Hoare annotation is: true [2020-07-17 14:58:05,812 INFO L264 CegarLoopResult]: At program point L113(line 113) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,812 INFO L271 CegarLoopResult]: At program point L146-1(line 146) the Hoare annotation is: true [2020-07-17 14:58:05,812 INFO L264 CegarLoopResult]: At program point L113-1(line 113) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,812 INFO L271 CegarLoopResult]: At program point L146-2(line 146) the Hoare annotation is: true [2020-07-17 14:58:05,812 INFO L271 CegarLoopResult]: At program point L113-2(lines 110 153) the Hoare annotation is: true [2020-07-17 14:58:05,812 INFO L271 CegarLoopResult]: At program point L113-3(line 113) the Hoare annotation is: true [2020-07-17 14:58:05,812 INFO L271 CegarLoopResult]: At program point L113-4(line 113) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point L113-5(line 113) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point L113-6(line 113) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point L113-7(line 113) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point L113-8(line 113) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point ludcmpFINAL(lines 109 153) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point L130(line 130) the Hoare annotation is: true [2020-07-17 14:58:05,813 INFO L271 CegarLoopResult]: At program point L130-3(lines 130 131) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L130-4(line 130) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L130-5(line 130) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L130-6(lines 130 131) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L130-7(lines 130 131) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L147(line 147) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L147-3(lines 147 148) the Hoare annotation is: true [2020-07-17 14:58:05,814 INFO L271 CegarLoopResult]: At program point L147-4(line 147) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L147-5(line 147) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L147-6(lines 147 148) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L147-7(lines 147 148) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L131(line 131) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L131-1(line 131) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L131-2(line 131) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L131-3(line 131) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L131-4(line 131) the Hoare annotation is: true [2020-07-17 14:58:05,815 INFO L271 CegarLoopResult]: At program point L148(line 148) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L115(line 115) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L148-1(line 148) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L148-2(line 148) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L148-3(line 148) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L148-4(line 148) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L132(lines 127 133) the Hoare annotation is: true [2020-07-17 14:58:05,816 INFO L271 CegarLoopResult]: At program point L149(line 149) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L116(line 116) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L149-1(line 149) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L116-3(lines 116 134) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L116-4(line 116) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L116-5(line 116) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L116-6(lines 116 134) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L116-7(lines 116 134) the Hoare annotation is: true [2020-07-17 14:58:05,817 INFO L271 CegarLoopResult]: At program point L69-4(line 69) the Hoare annotation is: true [2020-07-17 14:58:05,818 INFO L271 CegarLoopResult]: At program point L69-5(line 69) the Hoare annotation is: true [2020-07-17 14:58:05,818 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,818 INFO L271 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,818 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,818 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#a~0.base| |old(~#a~0.base)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |~#x~0.base| |old(~#x~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |~#x~0.offset| |old(~#x~0.offset)|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,818 INFO L271 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: true [2020-07-17 14:58:05,818 INFO L271 CegarLoopResult]: At program point L69-1(line 69) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L69-2(line 69) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L69-3(line 69) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L78(lines 78 79) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L78-1(line 78) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L76(line 76) the Hoare annotation is: true [2020-07-17 14:58:05,819 INFO L271 CegarLoopResult]: At program point L78-3(lines 78 79) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point fabsEXIT(lines 74 81) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point fabsENTRY(lines 74 81) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point fabsFINAL(lines 74 81) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 14:58:05,820 INFO L264 CegarLoopResult]: At program point L97(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (<= main_~j~0 main_~i~0) (<= main_~i~0 main_~j~0)) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point L97-1(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (<= main_~j~0 main_~i~0) (<= main_~i~0 main_~j~0)) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point L97-2(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (<= main_~j~0 main_~i~0) (<= main_~i~0 main_~j~0)) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point L93(line 93) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 5)) (.cse1 (<= 5 main_~n~0))) (or (and .cse0 (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) .cse1 (= 0 main_~i~0) (= |old(#length)| |#length|)) (and .cse0 .cse1 (<= main_~i~0 5) (exists ((|v_#memory_real_67| (Array Int (Array Int Real)))) (= |#memory_real| (store |v_#memory_real_67| |~#b~0.base| (store (select |v_#memory_real_67| |~#b~0.base|) (+ |~#b~0.offset| (* main_~i~0 8) (- 8)) main_~w~0))))))) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point L97-4(line 97) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point L89(line 89) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point mainEXIT(lines 83 107) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,821 INFO L264 CegarLoopResult]: At program point L106(line 106) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,822 INFO L264 CegarLoopResult]: At program point L98(line 98) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,822 INFO L264 CegarLoopResult]: At program point L98-1(line 98) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,822 INFO L264 CegarLoopResult]: At program point L94(line 94) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 5)) (.cse1 (<= 5 main_~n~0))) (or (and .cse0 (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) .cse1 (= 0 main_~i~0) (= |old(#length)| |#length|)) (and (= 0.0 main_~w~0) .cse0 .cse1 (<= main_~i~0 5) (exists ((|v_#memory_real_94| (Array Int (Array Int Real))) (v_main_~w~0_32 Real)) (= (store |v_#memory_real_94| |~#b~0.base| (store (select |v_#memory_real_94| |~#b~0.base|) (+ |~#b~0.offset| (* main_~i~0 8) (- 8)) v_main_~w~0_32)) |#memory_real|))))) [2020-07-17 14:58:05,822 INFO L264 CegarLoopResult]: At program point L94-3(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,822 INFO L264 CegarLoopResult]: At program point L94-4(line 94) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L94-5(line 94) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L94-6(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L94-7(lines 94 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L86(line 86) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L86-1(line 86) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L86-2(line 86) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,823 INFO L264 CegarLoopResult]: At program point L86-3(line 86) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,824 INFO L264 CegarLoopResult]: At program point L91(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,824 INFO L264 CegarLoopResult]: At program point L91-3(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (= |main_#t~post0| main_~i~0) (exists ((|v_#memory_real_60| (Array Int (Array Int Real)))) (= (store |v_#memory_real_60| |~#b~0.base| (store (select |v_#memory_real_60| |~#b~0.base|) (+ |~#b~0.offset| (* main_~i~0 8)) main_~w~0)) |#memory_real|))) [2020-07-17 14:58:05,824 INFO L264 CegarLoopResult]: At program point L87(line 87) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,824 INFO L264 CegarLoopResult]: At program point L91-4(line 91) the Hoare annotation is: (and (<= main_~n~0 5) (= main_~i~0 (+ |main_#t~post0| 1)) (<= 5 main_~n~0) (exists ((|v_#memory_real_60| (Array Int (Array Int Real)))) (= |#memory_real| (store |v_#memory_real_60| |~#b~0.base| (store (select |v_#memory_real_60| |~#b~0.base|) (+ (* |main_#t~post0| 8) |~#b~0.offset|) main_~w~0))))) [2020-07-17 14:58:05,824 INFO L264 CegarLoopResult]: At program point L87-1(line 87) the Hoare annotation is: (and (<= main_~n~0 5) (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (<= 5 main_~n~0) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,824 INFO L264 CegarLoopResult]: At program point L91-5(lines 91 102) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 5)) (.cse1 (<= 5 main_~n~0))) (or (and .cse0 (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) .cse1 (= 0 main_~i~0) (= |old(#length)| |#length|)) (and .cse0 .cse1 (exists ((|v_#memory_real_67| (Array Int (Array Int Real)))) (= |#memory_real| (store |v_#memory_real_67| |~#b~0.base| (store (select |v_#memory_real_67| |~#b~0.base|) (+ |~#b~0.offset| (* main_~i~0 8) (- 8)) main_~w~0))))))) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L91-6(lines 91 102) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point mainFINAL(lines 83 107) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L104(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L104-1(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L104-2(line 104) the Hoare annotation is: (<= 5 main_~n~0) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L100(line 100) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L96(line 96) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,825 INFO L264 CegarLoopResult]: At program point L96-1(lines 95 99) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~j~0 main_~n~0) (<= main_~i~0 5)) [2020-07-17 14:58:05,826 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 83 107) the Hoare annotation is: (and (= |#memory_real| |old(#memory_real)|) (= |#valid| |old(#valid)|) (= |old(#length)| |#length|)) [2020-07-17 14:58:05,826 INFO L264 CegarLoopResult]: At program point L101(lines 91 102) the Hoare annotation is: (and (<= main_~n~0 5) (<= 5 main_~n~0) (<= main_~i~0 5) (exists ((|v_#memory_real_99| (Array Int (Array Int Real)))) (= |#memory_real| (store |v_#memory_real_99| |~#b~0.base| (store (select |v_#memory_real_99| |~#b~0.base|) (+ |~#b~0.offset| (* main_~i~0 8)) main_~w~0))))) [2020-07-17 14:58:05,826 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-17 14:58:05,826 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 3 8) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 14:58:05,826 INFO L264 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 14:58:05,826 INFO L264 CegarLoopResult]: At program point L4(lines 4 6) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 14:58:05,826 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-17 14:58:05,827 INFO L264 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-17 14:58:05,842 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,843 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,845 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,846 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,850 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,851 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 02:58:05 BoogieIcfgContainer [2020-07-17 14:58:05,856 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 14:58:05,858 INFO L168 Benchmark]: Toolchain (without parser) took 257094.68 ms. Allocated memory was 141.0 MB in the beginning and 272.1 MB in the end (delta: 131.1 MB). Free memory was 102.3 MB in the beginning and 165.2 MB in the end (delta: -62.9 MB). Peak memory consumption was 177.4 MB. Max. memory is 7.1 GB. [2020-07-17 14:58:05,859 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 14:58:05,859 INFO L168 Benchmark]: CACSL2BoogieTranslator took 435.64 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 181.5 MB in the end (delta: -79.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2020-07-17 14:58:05,860 INFO L168 Benchmark]: Boogie Preprocessor took 59.60 ms. Allocated memory is still 204.5 MB. Free memory was 181.5 MB in the beginning and 179.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2020-07-17 14:58:05,861 INFO L168 Benchmark]: RCFGBuilder took 693.96 ms. Allocated memory is still 204.5 MB. Free memory was 179.0 MB in the beginning and 140.4 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. [2020-07-17 14:58:05,861 INFO L168 Benchmark]: TraceAbstraction took 255898.76 ms. Allocated memory was 204.5 MB in the beginning and 272.1 MB in the end (delta: 67.6 MB). Free memory was 139.8 MB in the beginning and 165.2 MB in the end (delta: -25.4 MB). Peak memory consumption was 151.4 MB. Max. memory is 7.1 GB. [2020-07-17 14:58:05,864 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 141.0 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 435.64 ms. Allocated memory was 141.0 MB in the beginning and 204.5 MB in the end (delta: 63.4 MB). Free memory was 101.9 MB in the beginning and 181.5 MB in the end (delta: -79.6 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 59.60 ms. Allocated memory is still 204.5 MB. Free memory was 181.5 MB in the beginning and 179.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 693.96 ms. Allocated memory is still 204.5 MB. Free memory was 179.0 MB in the beginning and 140.4 MB in the end (delta: 38.6 MB). Peak memory consumption was 38.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 255898.76 ms. Allocated memory was 204.5 MB in the beginning and 272.1 MB in the end (delta: 67.6 MB). Free memory was 139.8 MB in the beginning and 165.2 MB in the end (delta: -25.4 MB). Peak memory consumption was 151.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_real - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_real - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_real - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_real - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_real - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #length - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_real * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 119]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 91]: Loop Invariant [2020-07-17 14:58:05,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,871 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,871 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,872 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,872 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,872 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[v_#memory_real_67,QUANTIFIED] [2020-07-17 14:58:05,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real [2020-07-17 14:58:05,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #length [2020-07-17 14:58:05,873 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_real Derived loop invariant: (((((n <= 5 && unknown-#memory_real-unknown == \old(unknown-#memory_real-unknown)) && \valid == \old(\valid)) && 5 <= n) && 0 == i) && \old(unknown-#length-unknown) == unknown-#length-unknown) || ((n <= 5 && 5 <= n) && (\exists v_#memory_real_67 : [int,int]real :: unknown-#memory_real-unknown == v_#memory_real_67[b := v_#memory_real_67[b][b + i * 8 + -8 := w]])) - InvariantResult [Line: 147]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 136]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 116]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 94]: Loop Invariant Derived loop invariant: (n <= 5 && 5 <= n) && i <= 5 - InvariantResult [Line: 144]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 123]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 139]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 127]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 109]: Procedure Contract for ludcmp Derived contract for procedure ludcmp: 1 - ProcedureContractResult [Line: 74]: Procedure Contract for fabs Derived contract for procedure fabs: 1 - ProcedureContractResult [Line: 83]: Procedure Contract for main Derived contract for procedure main: 5 <= n - ProcedureContractResult [Line: 3]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 0 == \old(cond) || !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 186 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 223.5s, OverallIterations: 11, TraceHistogramMax: 18, AutomataDifference: 148.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 32.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 682 SDtfs, 1281 SDslu, 4747 SDs, 0 SdLazy, 12113 SolverSat, 191 SolverUnsat, 698 SolverUnknown, 0 SolverNotchecked, 84.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 806 GetRequests, 230 SyntacticMatches, 35 SemanticMatches, 541 ConstructedPredicates, 14 IntricatePredicates, 0 DeprecatedPredicates, 12331 ImplicationChecksByTransitivity, 126.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=402occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 11 MinimizatonAttempts, 663 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 186 LocationsWithAnnotation, 550 PreInvPairs, 1141 NumberOfFragments, 824 HoareAnnotationTreeSize, 550 FomulaSimplifications, 1854255 FormulaSimplificationTreeSizeReduction, 3.6s HoareSimplificationTime, 186 FomulaSimplificationsInter, 55491 FormulaSimplificationTreeSizeReductionInter, 28.5s 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...