/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:53:30,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:53:30,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:53:30,881 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 16:53:30,961 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:53:30,998 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:53:30,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:53:31,001 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:53:31,001 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:53:31,001 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:53:31,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:53:31,002 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:53:31,002 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:53:31,002 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:53:31,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:53:31,003 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:53:31,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:53:31,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:53:31,004 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:53:31,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:53:31,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:53:31,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:53:31,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:53:31,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:53:31,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:53:31,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:53:31,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:53:31,006 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:53:31,006 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:53:31,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:53:31,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:53:31,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:53:31,007 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:53:31,007 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:53:31,007 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:53:31,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:53:31,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:53:31,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:53:31,312 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:53:31,313 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:53:31,313 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-08-22 16:53:31,391 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75523b9be/50f479d0120741f697ffc72ab6186f0e/FLAG998ffc3eb [2020-08-22 16:53:31,997 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:53:31,997 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label52.c [2020-08-22 16:53:32,025 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75523b9be/50f479d0120741f697ffc72ab6186f0e/FLAG998ffc3eb [2020-08-22 16:53:32,242 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75523b9be/50f479d0120741f697ffc72ab6186f0e [2020-08-22 16:53:32,253 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:53:32,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:53:32,256 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:53:32,257 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:53:32,260 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:53:32,261 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:53:32" (1/1) ... [2020-08-22 16:53:32,265 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37a5f39f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:32, skipping insertion in model container [2020-08-22 16:53:32,265 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:53:32" (1/1) ... [2020-08-22 16:53:32,273 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:53:32,336 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:53:32,807 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:53:32,815 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:53:33,081 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:53:33,099 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:53:33,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33 WrapperNode [2020-08-22 16:53:33,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:53:33,100 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:53:33,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:53:33,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:53:33,116 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,116 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,135 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,175 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,192 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,197 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (1/1) ... [2020-08-22 16:53:33,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:53:33,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:53:33,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:53:33,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:53:33,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (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 [2020-08-22 16:53:33,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:53:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:53:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 16:53:33,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:53:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 16:53:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:53:33,286 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:53:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:53:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:53:33,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:53:33,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:53:34,651 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:53:34,652 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:53:34,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:53:34 BoogieIcfgContainer [2020-08-22 16:53:34,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:53:34,660 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:53:34,660 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:53:34,663 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:53:34,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:53:32" (1/3) ... [2020-08-22 16:53:34,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d3993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:53:34, skipping insertion in model container [2020-08-22 16:53:34,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:53:33" (2/3) ... [2020-08-22 16:53:34,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75d3993 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:53:34, skipping insertion in model container [2020-08-22 16:53:34,666 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:53:34" (3/3) ... [2020-08-22 16:53:34,669 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label52.c [2020-08-22 16:53:34,681 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:53:34,693 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:53:34,708 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:53:34,744 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:53:34,746 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:53:34,746 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:53:34,746 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:53:34,746 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:53:34,746 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:53:34,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:53:34,747 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:53:34,775 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-08-22 16:53:34,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-08-22 16:53:34,791 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:34,792 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:34,792 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:34,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:34,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1515832586, now seen corresponding path program 1 times [2020-08-22 16:53:34,810 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:34,811 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414273317] [2020-08-22 16:53:34,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:35,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:35,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:35,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:35,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:35,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414273317] [2020-08-22 16:53:35,254 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:35,254 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:53:35,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500133780] [2020-08-22 16:53:35,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:53:35,261 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:35,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:53:35,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:53:35,280 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 5 states. [2020-08-22 16:53:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:37,349 INFO L93 Difference]: Finished difference Result 730 states and 1301 transitions. [2020-08-22 16:53:37,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 16:53:37,352 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2020-08-22 16:53:37,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:37,391 INFO L225 Difference]: With dead ends: 730 [2020-08-22 16:53:37,392 INFO L226 Difference]: Without dead ends: 447 [2020-08-22 16:53:37,401 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:53:37,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447 states. [2020-08-22 16:53:37,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447 to 441. [2020-08-22 16:53:37,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 441 states. [2020-08-22 16:53:37,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 441 states to 441 states and 672 transitions. [2020-08-22 16:53:37,492 INFO L78 Accepts]: Start accepts. Automaton has 441 states and 672 transitions. Word has length 47 [2020-08-22 16:53:37,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:37,493 INFO L479 AbstractCegarLoop]: Abstraction has 441 states and 672 transitions. [2020-08-22 16:53:37,493 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:53:37,493 INFO L276 IsEmpty]: Start isEmpty. Operand 441 states and 672 transitions. [2020-08-22 16:53:37,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2020-08-22 16:53:37,500 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:37,500 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:37,501 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:53:37,501 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:37,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:37,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1601579245, now seen corresponding path program 1 times [2020-08-22 16:53:37,502 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:37,502 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695701495] [2020-08-22 16:53:37,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:37,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:37,683 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:37,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:37,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:37,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:37,819 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:37,819 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695701495] [2020-08-22 16:53:37,819 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:37,820 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:53:37,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074634589] [2020-08-22 16:53:37,822 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:53:37,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:37,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:53:37,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:53:37,824 INFO L87 Difference]: Start difference. First operand 441 states and 672 transitions. Second operand 8 states. [2020-08-22 16:53:39,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:39,440 INFO L93 Difference]: Finished difference Result 1041 states and 1612 transitions. [2020-08-22 16:53:39,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:53:39,441 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 120 [2020-08-22 16:53:39,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:39,446 INFO L225 Difference]: With dead ends: 1041 [2020-08-22 16:53:39,446 INFO L226 Difference]: Without dead ends: 606 [2020-08-22 16:53:39,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:53:39,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-08-22 16:53:39,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 592. [2020-08-22 16:53:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 592 states. [2020-08-22 16:53:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 592 states to 592 states and 829 transitions. [2020-08-22 16:53:39,496 INFO L78 Accepts]: Start accepts. Automaton has 592 states and 829 transitions. Word has length 120 [2020-08-22 16:53:39,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:39,500 INFO L479 AbstractCegarLoop]: Abstraction has 592 states and 829 transitions. [2020-08-22 16:53:39,500 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:53:39,500 INFO L276 IsEmpty]: Start isEmpty. Operand 592 states and 829 transitions. [2020-08-22 16:53:39,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-08-22 16:53:39,514 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:39,517 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:39,517 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:53:39,517 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:39,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:39,518 INFO L82 PathProgramCache]: Analyzing trace with hash -446355495, now seen corresponding path program 1 times [2020-08-22 16:53:39,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:39,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614995727] [2020-08-22 16:53:39,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:39,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:39,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:39,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:39,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:39,803 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 23 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:39,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614995727] [2020-08-22 16:53:39,804 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864378131] [2020-08-22 16:53:39,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:39,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:39,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 265 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:39,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:40,025 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:40,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:40,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2020-08-22 16:53:40,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091734385] [2020-08-22 16:53:40,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:53:40,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:40,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:53:40,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:53:40,028 INFO L87 Difference]: Start difference. First operand 592 states and 829 transitions. Second operand 3 states. [2020-08-22 16:53:40,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:40,663 INFO L93 Difference]: Finished difference Result 1615 states and 2274 transitions. [2020-08-22 16:53:40,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:53:40,664 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-08-22 16:53:40,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:40,673 INFO L225 Difference]: With dead ends: 1615 [2020-08-22 16:53:40,674 INFO L226 Difference]: Without dead ends: 1029 [2020-08-22 16:53:40,676 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:53:40,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1029 states. [2020-08-22 16:53:40,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1029 to 886. [2020-08-22 16:53:40,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-08-22 16:53:40,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1150 transitions. [2020-08-22 16:53:40,730 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1150 transitions. Word has length 126 [2020-08-22 16:53:40,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:40,731 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1150 transitions. [2020-08-22 16:53:40,731 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:53:40,732 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1150 transitions. [2020-08-22 16:53:40,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-08-22 16:53:40,736 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:40,737 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:40,953 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-08-22 16:53:40,954 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:40,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:40,955 INFO L82 PathProgramCache]: Analyzing trace with hash -757427466, now seen corresponding path program 1 times [2020-08-22 16:53:40,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:40,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639007539] [2020-08-22 16:53:40,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:40,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:41,053 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:41,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:41,074 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:41,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:41,287 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:41,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639007539] [2020-08-22 16:53:41,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:53:41,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:53:41,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104647820] [2020-08-22 16:53:41,290 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:53:41,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:41,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:53:41,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:53:41,292 INFO L87 Difference]: Start difference. First operand 886 states and 1150 transitions. Second operand 8 states. [2020-08-22 16:53:43,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:43,146 INFO L93 Difference]: Finished difference Result 2245 states and 2959 transitions. [2020-08-22 16:53:43,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-08-22 16:53:43,148 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 183 [2020-08-22 16:53:43,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:43,156 INFO L225 Difference]: With dead ends: 2245 [2020-08-22 16:53:43,157 INFO L226 Difference]: Without dead ends: 1365 [2020-08-22 16:53:43,159 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-08-22 16:53:43,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2020-08-22 16:53:43,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1057. [2020-08-22 16:53:43,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1057 states. [2020-08-22 16:53:43,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1057 states to 1057 states and 1317 transitions. [2020-08-22 16:53:43,200 INFO L78 Accepts]: Start accepts. Automaton has 1057 states and 1317 transitions. Word has length 183 [2020-08-22 16:53:43,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:43,200 INFO L479 AbstractCegarLoop]: Abstraction has 1057 states and 1317 transitions. [2020-08-22 16:53:43,200 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:53:43,201 INFO L276 IsEmpty]: Start isEmpty. Operand 1057 states and 1317 transitions. [2020-08-22 16:53:43,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2020-08-22 16:53:43,204 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:43,204 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:43,205 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 16:53:43,205 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:43,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:43,205 INFO L82 PathProgramCache]: Analyzing trace with hash 271418902, now seen corresponding path program 1 times [2020-08-22 16:53:43,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:43,206 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171316937] [2020-08-22 16:53:43,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:43,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:43,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:43,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:43,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:43,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-08-22 16:53:43,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:43,507 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-08-22 16:53:43,507 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171316937] [2020-08-22 16:53:43,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1484045765] [2020-08-22 16:53:43,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:43,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:43,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 379 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:43,600 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:43,701 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 148 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:43,702 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:53:43,702 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 12 [2020-08-22 16:53:43,703 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426716149] [2020-08-22 16:53:43,703 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 16:53:43,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:43,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 16:53:43,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2020-08-22 16:53:43,705 INFO L87 Difference]: Start difference. First operand 1057 states and 1317 transitions. Second operand 12 states. [2020-08-22 16:53:47,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:47,977 INFO L93 Difference]: Finished difference Result 4899 states and 6453 transitions. [2020-08-22 16:53:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-08-22 16:53:47,978 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 207 [2020-08-22 16:53:47,978 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:47,996 INFO L225 Difference]: With dead ends: 4899 [2020-08-22 16:53:47,996 INFO L226 Difference]: Without dead ends: 3848 [2020-08-22 16:53:48,001 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 250 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 264 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190 [2020-08-22 16:53:48,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3848 states. [2020-08-22 16:53:48,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3848 to 2825. [2020-08-22 16:53:48,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2825 states. [2020-08-22 16:53:48,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2825 states to 2825 states and 3421 transitions. [2020-08-22 16:53:48,100 INFO L78 Accepts]: Start accepts. Automaton has 2825 states and 3421 transitions. Word has length 207 [2020-08-22 16:53:48,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:48,100 INFO L479 AbstractCegarLoop]: Abstraction has 2825 states and 3421 transitions. [2020-08-22 16:53:48,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 16:53:48,101 INFO L276 IsEmpty]: Start isEmpty. Operand 2825 states and 3421 transitions. [2020-08-22 16:53:48,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2020-08-22 16:53:48,107 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:48,107 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:48,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:48,321 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:48,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:48,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1929236310, now seen corresponding path program 1 times [2020-08-22 16:53:48,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:48,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376188862] [2020-08-22 16:53:48,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:48,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:48,403 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:48,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:48,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:48,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 16:53:48,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:48,676 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 80 proven. 85 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-08-22 16:53:48,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376188862] [2020-08-22 16:53:48,677 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808748748] [2020-08-22 16:53:48,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:48,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:48,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 403 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:48,784 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:48,869 INFO L134 CoverageAnalysis]: Checked inductivity of 170 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-08-22 16:53:48,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:48,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-08-22 16:53:48,870 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886942712] [2020-08-22 16:53:48,870 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:53:48,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:48,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:53:48,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:53:48,872 INFO L87 Difference]: Start difference. First operand 2825 states and 3421 transitions. Second operand 3 states. [2020-08-22 16:53:49,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:49,668 INFO L93 Difference]: Finished difference Result 6375 states and 7868 transitions. [2020-08-22 16:53:49,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:53:49,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 233 [2020-08-22 16:53:49,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:49,690 INFO L225 Difference]: With dead ends: 6375 [2020-08-22 16:53:49,690 INFO L226 Difference]: Without dead ends: 3699 [2020-08-22 16:53:49,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 235 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:53:49,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2020-08-22 16:53:49,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3554. [2020-08-22 16:53:49,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3554 states. [2020-08-22 16:53:49,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3554 states to 3554 states and 4281 transitions. [2020-08-22 16:53:49,866 INFO L78 Accepts]: Start accepts. Automaton has 3554 states and 4281 transitions. Word has length 233 [2020-08-22 16:53:49,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:49,867 INFO L479 AbstractCegarLoop]: Abstraction has 3554 states and 4281 transitions. [2020-08-22 16:53:49,867 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:53:49,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3554 states and 4281 transitions. [2020-08-22 16:53:49,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-08-22 16:53:49,875 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:49,875 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:50,088 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:50,089 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:50,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:50,090 INFO L82 PathProgramCache]: Analyzing trace with hash 1642135730, now seen corresponding path program 1 times [2020-08-22 16:53:50,090 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:50,091 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888613896] [2020-08-22 16:53:50,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:50,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:50,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:50,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-08-22 16:53:50,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,522 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 84 proven. 74 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:53:50,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888613896] [2020-08-22 16:53:50,523 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [267457488] [2020-08-22 16:53:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:50,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 445 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:50,653 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:50,980 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 157 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:53:50,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:53:50,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 13 [2020-08-22 16:53:50,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049935911] [2020-08-22 16:53:50,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 16:53:50,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:50,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 16:53:50,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156 [2020-08-22 16:53:50,984 INFO L87 Difference]: Start difference. First operand 3554 states and 4281 transitions. Second operand 13 states. [2020-08-22 16:53:55,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:55,661 INFO L93 Difference]: Finished difference Result 9723 states and 11826 transitions. [2020-08-22 16:53:55,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 16:53:55,662 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 267 [2020-08-22 16:53:55,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:55,681 INFO L225 Difference]: With dead ends: 9723 [2020-08-22 16:53:55,681 INFO L226 Difference]: Without dead ends: 4400 [2020-08-22 16:53:55,695 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 315 GetRequests, 279 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=309, Invalid=1097, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 16:53:55,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2020-08-22 16:53:55,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 3246. [2020-08-22 16:53:55,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3246 states. [2020-08-22 16:53:55,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3783 transitions. [2020-08-22 16:53:55,794 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3783 transitions. Word has length 267 [2020-08-22 16:53:55,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:55,795 INFO L479 AbstractCegarLoop]: Abstraction has 3246 states and 3783 transitions. [2020-08-22 16:53:55,795 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 16:53:55,795 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3783 transitions. [2020-08-22 16:53:55,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2020-08-22 16:53:55,805 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:53:55,805 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:53:56,019 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:56,019 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:53:56,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:53:56,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1698020394, now seen corresponding path program 1 times [2020-08-22 16:53:56,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:53:56,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784166632] [2020-08-22 16:53:56,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:53:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:56,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:53:56,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:56,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:53:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:56,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-22 16:53:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:56,384 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-08-22 16:53:56,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784166632] [2020-08-22 16:53:56,385 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [714109241] [2020-08-22 16:53:56,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:56,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:53:56,487 INFO L263 TraceCheckSpWp]: Trace formula consists of 479 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:53:56,495 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:53:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-08-22 16:53:56,570 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:53:56,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-08-22 16:53:56,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934495985] [2020-08-22 16:53:56,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:53:56,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:53:56,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:53:56,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:53:56,573 INFO L87 Difference]: Start difference. First operand 3246 states and 3783 transitions. Second operand 3 states. [2020-08-22 16:53:57,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:53:57,230 INFO L93 Difference]: Finished difference Result 6772 states and 7952 transitions. [2020-08-22 16:53:57,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:53:57,231 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 303 [2020-08-22 16:53:57,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:53:57,232 INFO L225 Difference]: With dead ends: 6772 [2020-08-22 16:53:57,232 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:53:57,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 313 GetRequests, 309 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:53:57,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:53:57,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:53:57,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:53:57,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:53:57,247 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 303 [2020-08-22 16:53:57,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:53:57,247 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:53:57,247 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:53:57,247 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:53:57,247 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:53:57,463 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:53:57,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:53:57,905 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 117 [2020-08-22 16:53:58,041 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 117 [2020-08-22 16:53:59,035 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 58 [2020-08-22 16:53:59,382 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 43 [2020-08-22 16:53:59,748 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 43 [2020-08-22 16:53:59,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:53:59,753 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-08-22 16:53:59,753 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:53:59,754 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-08-22 16:53:59,754 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,754 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,754 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,755 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,755 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,755 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,755 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-08-22 16:53:59,755 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-08-22 16:53:59,756 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-08-22 16:53:59,756 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-08-22 16:53:59,756 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-08-22 16:53:59,756 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-08-22 16:53:59,756 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-08-22 16:53:59,756 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,757 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-08-22 16:53:59,758 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 127) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,759 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-08-22 16:53:59,760 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,761 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-08-22 16:53:59,762 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,763 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-08-22 16:53:59,764 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,765 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-08-22 16:53:59,766 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-08-22 16:53:59,767 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,768 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-08-22 16:53:59,769 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,770 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-08-22 16:53:59,771 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-08-22 16:53:59,772 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-08-22 16:53:59,772 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-08-22 16:53:59,772 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-08-22 16:53:59,772 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-08-22 16:53:59,772 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-08-22 16:53:59,772 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse4 (= ~a1~0 |old(~a1~0)|)) (.cse5 (= ~a10~0 |old(~a10~0)|))) (let ((.cse1 (not (= 14 ~a4~0))) (.cse3 (not (= ~a12~0 0))) (.cse6 (= |old(~a10~0)| 1)) (.cse7 (= 8 |old(~a19~0)|)) (.cse2 (not (<= |old(~a19~0)| 9))) (.cse8 (not (<= |old(~a19~0)| 8))) (.cse0 (and .cse4 (= ~a19~0 |old(~a19~0)|) .cse5))) (and (or .cse0 .cse1 .cse2 (not (< 218 |old(~a1~0)|)) .cse3) (or (and (<= 9 ~a19~0) (<= ~a19~0 9) .cse4 .cse5) (not (= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23))) (or .cse0 .cse6 .cse2 .cse1 .cse7 .cse3) (or .cse8 .cse0 .cse6 .cse2 .cse7) (or .cse0 (not (<= |old(~a10~0)| 1))) (or (not (<= 4 |old(~a10~0)|)) .cse0 .cse2) (or .cse8 .cse0 (not (<= |old(~a10~0)| 2)))))) [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,773 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-08-22 16:53:59,774 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-08-22 16:53:59,775 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-08-22 16:53:59,776 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-08-22 16:53:59,777 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-08-22 16:53:59,778 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-08-22 16:53:59,779 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-08-22 16:53:59,780 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-08-22 16:53:59,780 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:53:59,780 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (= 14 ~a4~0) (<= 9 ~a19~0) (= ~a12~0 0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-08-22 16:53:59,780 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:53:59,780 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:53:59,781 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (not (= 14 ~a4~0)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|)) (not (= ~a12~0 0))) [2020-08-22 16:53:59,781 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-08-22 16:53:59,781 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a10~0 2) .cse0) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse0) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (< 218 ~a1~0) .cse0) (<= ~a10~0 1) (and (<= 4 ~a10~0) .cse0) (not (= ~a12~0 0)))) [2020-08-22 16:53:59,781 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-08-22 16:53:59,781 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-08-22 16:53:59,782 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse0 (<= ~a19~0 9))) (or (not (<= 23 |old(~a1~0)|)) (and (<= ~a10~0 2) .cse0) (not (<= |old(~a10~0)| 0)) (and (not (= ~a19~0 8)) .cse0) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (= 14 ~a4~0)) (not (<= |old(~a19~0)| 9)) (and (< 218 ~a1~0) .cse0) (<= ~a10~0 1) (and (<= 4 ~a10~0) .cse0) (not (= ~a12~0 0)))) [2020-08-22 16:53:59,782 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-08-22 16:53:59,814 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:53:59 BoogieIcfgContainer [2020-08-22 16:53:59,815 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:53:59,818 INFO L168 Benchmark]: Toolchain (without parser) took 27562.11 ms. Allocated memory was 140.5 MB in the beginning and 647.5 MB in the end (delta: 507.0 MB). Free memory was 100.8 MB in the beginning and 557.8 MB in the end (delta: -457.0 MB). Peak memory consumption was 460.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:59,820 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-08-22 16:53:59,826 INFO L168 Benchmark]: CACSL2BoogieTranslator took 843.49 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 171.9 MB in the end (delta: -71.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:59,828 INFO L168 Benchmark]: Boogie Preprocessor took 106.84 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 167.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:59,829 INFO L168 Benchmark]: RCFGBuilder took 1451.10 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 167.1 MB in the beginning and 178.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:59,831 INFO L168 Benchmark]: TraceAbstraction took 25155.09 ms. Allocated memory was 236.5 MB in the beginning and 647.5 MB in the end (delta: 411.0 MB). Free memory was 177.3 MB in the beginning and 557.8 MB in the end (delta: -380.5 MB). Peak memory consumption was 440.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:53:59,843 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 140.5 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 843.49 ms. Allocated memory was 140.5 MB in the beginning and 205.5 MB in the end (delta: 65.0 MB). Free memory was 100.6 MB in the beginning and 171.9 MB in the end (delta: -71.3 MB). Peak memory consumption was 34.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 106.84 ms. Allocated memory is still 205.5 MB. Free memory was 171.9 MB in the beginning and 167.1 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1451.10 ms. Allocated memory was 205.5 MB in the beginning and 236.5 MB in the end (delta: 30.9 MB). Free memory was 167.1 MB in the beginning and 178.7 MB in the end (delta: -11.6 MB). Peak memory consumption was 81.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 25155.09 ms. Allocated memory was 236.5 MB in the beginning and 647.5 MB in the end (delta: 411.0 MB). Free memory was 177.3 MB in the beginning and 557.8 MB in the end (delta: -380.5 MB). Peak memory consumption was 440.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 127]: 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: 582]: Loop Invariant Derived loop invariant: ((((((((((!(23 <= \old(a1)) || (a10 <= 2 && a19 <= 9)) || !(\old(a10) <= 0)) || (!(a19 == 8) && a19 <= 9)) || !(9 <= \old(a19))) || !(\old(a1) <= 23)) || !(14 == a4)) || !(\old(a19) <= 9)) || (218 < a1 && a19 <= 9)) || a10 <= 1) || (4 <= a10 && a19 <= 9)) || !(a12 == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 22.7s, OverallIterations: 8, TraceHistogramMax: 3, AutomataDifference: 16.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 656 SDtfs, 4969 SDslu, 428 SDs, 0 SdLazy, 10034 SolverSat, 1997 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1292 GetRequests, 1175 SyntacticMatches, 1 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 664 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3554occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2793 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 129 PreInvPairs, 209 NumberOfFragments, 378 HoareAnnotationTreeSize, 129 FomulaSimplifications, 31843 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 7 FomulaSimplificationsInter, 6598 FormulaSimplificationTreeSizeReductionInter, 1.6s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 2622 NumberOfCodeBlocks, 2622 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2609 ConstructedInterpolants, 0 QuantifiedInterpolants, 1285076 SizeOfPredicates, 7 NumberOfNonLiveVariables, 1971 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 6 PerfectInterpolantSequences, 1324/1508 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...