/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/Problem02_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 13:36:53,186 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 13:36:53,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 13:36:53,232 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 13:36:53,232 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 13:36:53,243 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 13:36:53,245 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 13:36:53,250 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 13:36:53,252 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 13:36:53,256 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 13:36:53,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 13:36:53,260 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 13:36:53,260 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 13:36:53,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 13:36:53,266 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 13:36:53,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 13:36:53,270 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 13:36:53,271 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 13:36:53,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 13:36:53,281 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 13:36:53,283 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 13:36:53,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 13:36:53,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 13:36:53,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 13:36:53,291 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-04 13:36:53,305 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 13:36:53,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 13:36:53,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 13:36:53,312 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-04 13:36:53,360 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 13:36:53,361 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 13:36:53,363 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-04 13:36:53,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-04 13:36:53,364 INFO L138 SettingsManager]: * Use SBE=true [2020-09-04 13:36:53,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 13:36:53,364 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 13:36:53,364 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 13:36:53,365 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 13:36:53,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 13:36:53,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 13:36:53,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 13:36:53,367 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 13:36:53,367 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 13:36:53,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 13:36:53,367 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 13:36:53,368 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 13:36:53,368 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 13:36:53,368 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-04 13:36:53,368 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 13:36:53,368 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 13:36:53,369 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:36:53,369 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 13:36:53,369 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-04 13:36:53,369 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-04 13:36:53,369 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-04 13:36:53,370 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-04 13:36:53,370 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 13:36:53,370 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-04 13:36:53,370 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-04 13:36:53,812 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 13:36:53,841 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 13:36:53,847 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 13:36:53,850 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 13:36:53,850 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 13:36:53,851 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2020-09-04 13:36:53,952 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ffd36cc9/97d16ddf35ce4a71a6e9e4396199a19b/FLAG5a06987ad [2020-09-04 13:36:54,594 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 13:36:54,595 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label46.c [2020-09-04 13:36:54,612 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ffd36cc9/97d16ddf35ce4a71a6e9e4396199a19b/FLAG5a06987ad [2020-09-04 13:36:54,851 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5ffd36cc9/97d16ddf35ce4a71a6e9e4396199a19b [2020-09-04 13:36:54,868 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 13:36:54,870 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 13:36:54,873 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 13:36:54,873 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 13:36:54,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 13:36:54,879 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:36:54" (1/1) ... [2020-09-04 13:36:54,884 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bd8ad23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:54, skipping insertion in model container [2020-09-04 13:36:54,884 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 01:36:54" (1/1) ... [2020-09-04 13:36:54,894 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 13:36:54,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 13:36:55,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:36:55,499 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 13:36:55,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 13:36:55,632 INFO L208 MainTranslator]: Completed translation [2020-09-04 13:36:55,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55 WrapperNode [2020-09-04 13:36:55,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 13:36:55,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 13:36:55,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 13:36:55,634 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 13:36:55,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,670 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,711 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... [2020-09-04 13:36:55,747 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 13:36:55,748 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 13:36:55,749 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 13:36:55,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 13:36:55,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 13:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 13:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 13:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-04 13:36:55,828 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 13:36:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-04 13:36:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 13:36:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 13:36:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-04 13:36:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 13:36:55,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 13:36:55,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 13:36:56,966 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 13:36:56,967 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-04 13:36:56,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:36:56 BoogieIcfgContainer [2020-09-04 13:36:56,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 13:36:56,978 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 13:36:56,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 13:36:56,982 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 13:36:56,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 01:36:54" (1/3) ... [2020-09-04 13:36:56,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c019b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:36:56, skipping insertion in model container [2020-09-04 13:36:56,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 01:36:55" (2/3) ... [2020-09-04 13:36:56,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c019b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 01:36:56, skipping insertion in model container [2020-09-04 13:36:56,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 01:36:56" (3/3) ... [2020-09-04 13:36:56,987 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label46.c [2020-09-04 13:36:57,000 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-04 13:36:57,011 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 13:36:57,035 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 13:36:57,069 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 13:36:57,069 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 13:36:57,069 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-04 13:36:57,069 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 13:36:57,070 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 13:36:57,070 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 13:36:57,070 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 13:36:57,070 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 13:36:57,100 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-04 13:36:57,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-09-04 13:36:57,116 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:36:57,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:36:57,118 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:36:57,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:36:57,126 INFO L82 PathProgramCache]: Analyzing trace with hash -1613804370, now seen corresponding path program 1 times [2020-09-04 13:36:57,138 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:36:57,138 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803637987] [2020-09-04 13:36:57,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:36:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:57,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:36:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:36:57,832 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:36:57,833 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803637987] [2020-09-04 13:36:57,835 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 13:36:57,835 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 13:36:57,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2146546065] [2020-09-04 13:36:57,849 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:36:57,849 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:36:57,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:36:57,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-04 13:36:57,877 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-04 13:37:00,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:00,291 INFO L93 Difference]: Finished difference Result 813 states and 1406 transitions. [2020-09-04 13:37:00,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:37:00,295 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 118 [2020-09-04 13:37:00,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:00,321 INFO L225 Difference]: With dead ends: 813 [2020-09-04 13:37:00,321 INFO L226 Difference]: Without dead ends: 488 [2020-09-04 13:37:00,330 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 [2020-09-04 13:37:00,354 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2020-09-04 13:37:00,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 481. [2020-09-04 13:37:00,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 481 states. [2020-09-04 13:37:00,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 692 transitions. [2020-09-04 13:37:00,439 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 692 transitions. Word has length 118 [2020-09-04 13:37:00,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:00,441 INFO L479 AbstractCegarLoop]: Abstraction has 481 states and 692 transitions. [2020-09-04 13:37:00,441 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:37:00,441 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 692 transitions. [2020-09-04 13:37:00,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2020-09-04 13:37:00,448 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:00,448 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:00,449 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 13:37:00,449 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:00,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:00,449 INFO L82 PathProgramCache]: Analyzing trace with hash -2043531383, now seen corresponding path program 1 times [2020-09-04 13:37:00,450 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:00,450 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229753070] [2020-09-04 13:37:00,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:00,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:00,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:00,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:00,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:00,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:00,787 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:00,787 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229753070] [2020-09-04 13:37:00,788 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1778571272] [2020-09-04 13:37:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:00,899 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:00,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:01,029 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:01,030 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:37:01,030 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 6 [2020-09-04 13:37:01,031 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017667682] [2020-09-04 13:37:01,033 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:37:01,033 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:01,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:37:01,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:37:01,034 INFO L87 Difference]: Start difference. First operand 481 states and 692 transitions. Second operand 3 states. [2020-09-04 13:37:01,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:01,778 INFO L93 Difference]: Finished difference Result 1395 states and 2042 transitions. [2020-09-04 13:37:01,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:37:01,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 126 [2020-09-04 13:37:01,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:01,787 INFO L225 Difference]: With dead ends: 1395 [2020-09-04 13:37:01,787 INFO L226 Difference]: Without dead ends: 920 [2020-09-04 13:37:01,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 13:37:01,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 920 states. [2020-09-04 13:37:01,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 920 to 920. [2020-09-04 13:37:01,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 920 states. [2020-09-04 13:37:01,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 920 states to 920 states and 1268 transitions. [2020-09-04 13:37:01,840 INFO L78 Accepts]: Start accepts. Automaton has 920 states and 1268 transitions. Word has length 126 [2020-09-04 13:37:01,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:01,841 INFO L479 AbstractCegarLoop]: Abstraction has 920 states and 1268 transitions. [2020-09-04 13:37:01,841 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:37:01,841 INFO L276 IsEmpty]: Start isEmpty. Operand 920 states and 1268 transitions. [2020-09-04 13:37:01,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 13:37:01,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:01,849 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:02,064 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-09-04 13:37:02,065 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:02,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:02,066 INFO L82 PathProgramCache]: Analyzing trace with hash -544215550, now seen corresponding path program 1 times [2020-09-04 13:37:02,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:02,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999262115] [2020-09-04 13:37:02,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:02,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,477 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 20 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:02,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999262115] [2020-09-04 13:37:02,479 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207122368] [2020-09-04 13:37:02,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:02,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:02,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 11 conjunts are in the unsatisfiable core [2020-09-04 13:37:02,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:02,733 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:02,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:37:02,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 9 [2020-09-04 13:37:02,734 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523409278] [2020-09-04 13:37:02,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:37:02,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:02,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:37:02,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-09-04 13:37:02,738 INFO L87 Difference]: Start difference. First operand 920 states and 1268 transitions. Second operand 5 states. [2020-09-04 13:37:03,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:03,785 INFO L93 Difference]: Finished difference Result 2755 states and 3986 transitions. [2020-09-04 13:37:03,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-04 13:37:03,785 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 142 [2020-09-04 13:37:03,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:03,798 INFO L225 Difference]: With dead ends: 2755 [2020-09-04 13:37:03,798 INFO L226 Difference]: Without dead ends: 1841 [2020-09-04 13:37:03,802 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 153 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:37:03,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1841 states. [2020-09-04 13:37:03,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1841 to 1813. [2020-09-04 13:37:03,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1813 states. [2020-09-04 13:37:03,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1813 states to 1813 states and 2453 transitions. [2020-09-04 13:37:03,875 INFO L78 Accepts]: Start accepts. Automaton has 1813 states and 2453 transitions. Word has length 142 [2020-09-04 13:37:03,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:03,876 INFO L479 AbstractCegarLoop]: Abstraction has 1813 states and 2453 transitions. [2020-09-04 13:37:03,876 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:37:03,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1813 states and 2453 transitions. [2020-09-04 13:37:03,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-04 13:37:03,883 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:03,883 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:04,096 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:04,097 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:04,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:04,097 INFO L82 PathProgramCache]: Analyzing trace with hash 488288567, now seen corresponding path program 1 times [2020-09-04 13:37:04,098 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:04,098 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535349721] [2020-09-04 13:37:04,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:04,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:04,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:04,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:37:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:37:04,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535349721] [2020-09-04 13:37:04,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539004789] [2020-09-04 13:37:04,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:04,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:04,512 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:04,523 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:04,603 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:04,603 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:04,604 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-09-04 13:37:04,604 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179229682] [2020-09-04 13:37:04,605 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:37:04,605 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:04,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:37:04,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:37:04,606 INFO L87 Difference]: Start difference. First operand 1813 states and 2453 transitions. Second operand 10 states. [2020-09-04 13:37:06,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:06,490 INFO L93 Difference]: Finished difference Result 4294 states and 6039 transitions. [2020-09-04 13:37:06,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:37:06,491 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 149 [2020-09-04 13:37:06,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:06,507 INFO L225 Difference]: With dead ends: 4294 [2020-09-04 13:37:06,508 INFO L226 Difference]: Without dead ends: 2487 [2020-09-04 13:37:06,513 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 166 GetRequests, 153 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-09-04 13:37:06,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2020-09-04 13:37:06,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2439. [2020-09-04 13:37:06,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2439 states. [2020-09-04 13:37:06,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2439 states to 2439 states and 3293 transitions. [2020-09-04 13:37:06,599 INFO L78 Accepts]: Start accepts. Automaton has 2439 states and 3293 transitions. Word has length 149 [2020-09-04 13:37:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:06,599 INFO L479 AbstractCegarLoop]: Abstraction has 2439 states and 3293 transitions. [2020-09-04 13:37:06,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:37:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2439 states and 3293 transitions. [2020-09-04 13:37:06,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-04 13:37:06,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:06,607 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:06,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:06,822 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:06,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:06,823 INFO L82 PathProgramCache]: Analyzing trace with hash -444558417, now seen corresponding path program 1 times [2020-09-04 13:37:06,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:06,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733932309] [2020-09-04 13:37:06,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:06,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:06,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:07,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:37:07,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,129 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 27 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-09-04 13:37:07,129 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733932309] [2020-09-04 13:37:07,130 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73921839] [2020-09-04 13:37:07,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:07,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:07,262 INFO L263 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:07,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-04 13:37:07,368 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:37:07,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2020-09-04 13:37:07,369 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959063169] [2020-09-04 13:37:07,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 13:37:07,370 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:07,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 13:37:07,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:37:07,371 INFO L87 Difference]: Start difference. First operand 2439 states and 3293 transitions. Second operand 3 states. [2020-09-04 13:37:08,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:08,289 INFO L93 Difference]: Finished difference Result 4872 states and 6580 transitions. [2020-09-04 13:37:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 13:37:08,289 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-04 13:37:08,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:08,303 INFO L225 Difference]: With dead ends: 4872 [2020-09-04 13:37:08,303 INFO L226 Difference]: Without dead ends: 2439 [2020-09-04 13:37:08,310 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 165 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-09-04 13:37:08,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2020-09-04 13:37:08,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2003. [2020-09-04 13:37:08,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2003 states. [2020-09-04 13:37:08,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2003 states to 2003 states and 2482 transitions. [2020-09-04 13:37:08,377 INFO L78 Accepts]: Start accepts. Automaton has 2003 states and 2482 transitions. Word has length 153 [2020-09-04 13:37:08,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:08,378 INFO L479 AbstractCegarLoop]: Abstraction has 2003 states and 2482 transitions. [2020-09-04 13:37:08,378 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 13:37:08,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2003 states and 2482 transitions. [2020-09-04 13:37:08,384 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-09-04 13:37:08,384 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:08,385 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-04 13:37:08,599 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:08,599 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:08,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:08,600 INFO L82 PathProgramCache]: Analyzing trace with hash 1649183061, now seen corresponding path program 1 times [2020-09-04 13:37:08,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:08,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145310357] [2020-09-04 13:37:08,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:08,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:08,713 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:08,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:08,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:08,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-09-04 13:37:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:08,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-04 13:37:08,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:08,864 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 52 proven. 22 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-04 13:37:08,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145310357] [2020-09-04 13:37:08,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024510743] [2020-09-04 13:37:08,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 13:37:08,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:08,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:08,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:09,053 INFO L134 CoverageAnalysis]: Checked inductivity of 85 backedges. 61 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-04 13:37:09,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:09,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-09-04 13:37:09,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [952845457] [2020-09-04 13:37:09,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:37:09,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:09,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:37:09,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:37:09,057 INFO L87 Difference]: Start difference. First operand 2003 states and 2482 transitions. Second operand 11 states. [2020-09-04 13:37:10,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:10,827 INFO L93 Difference]: Finished difference Result 4455 states and 5645 transitions. [2020-09-04 13:37:10,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:37:10,827 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 173 [2020-09-04 13:37:10,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:10,845 INFO L225 Difference]: With dead ends: 4455 [2020-09-04 13:37:10,845 INFO L226 Difference]: Without dead ends: 2458 [2020-09-04 13:37:10,853 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 182 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:37:10,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2458 states. [2020-09-04 13:37:10,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2458 to 1833. [2020-09-04 13:37:10,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1833 states. [2020-09-04 13:37:10,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1833 states to 1833 states and 2188 transitions. [2020-09-04 13:37:10,974 INFO L78 Accepts]: Start accepts. Automaton has 1833 states and 2188 transitions. Word has length 173 [2020-09-04 13:37:10,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:10,975 INFO L479 AbstractCegarLoop]: Abstraction has 1833 states and 2188 transitions. [2020-09-04 13:37:10,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:37:10,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1833 states and 2188 transitions. [2020-09-04 13:37:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-04 13:37:10,986 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:10,987 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-09-04 13:37:11,200 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2020-09-04 13:37:11,200 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:11,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1271693827, now seen corresponding path program 1 times [2020-09-04 13:37:11,202 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:11,202 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895145478] [2020-09-04 13:37:11,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:11,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:11,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:11,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:11,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:37:11,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:11,415 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-04 13:37:11,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:11,511 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 84 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-09-04 13:37:11,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895145478] [2020-09-04 13:37:11,512 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375299763] [2020-09-04 13:37:11,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:11,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:11,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:11,745 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 86 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-09-04 13:37:11,746 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:11,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-09-04 13:37:11,747 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378418069] [2020-09-04 13:37:11,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 13:37:11,748 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:11,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 13:37:11,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:37:11,750 INFO L87 Difference]: Start difference. First operand 1833 states and 2188 transitions. Second operand 10 states. [2020-09-04 13:37:14,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:14,842 INFO L93 Difference]: Finished difference Result 3026 states and 3611 transitions. [2020-09-04 13:37:14,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 13:37:14,843 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 177 [2020-09-04 13:37:14,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:14,849 INFO L225 Difference]: With dead ends: 3026 [2020-09-04 13:37:14,850 INFO L226 Difference]: Without dead ends: 1064 [2020-09-04 13:37:14,854 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 201 GetRequests, 187 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2020-09-04 13:37:14,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1064 states. [2020-09-04 13:37:14,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1064 to 1056. [2020-09-04 13:37:14,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2020-09-04 13:37:14,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1190 transitions. [2020-09-04 13:37:14,889 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1190 transitions. Word has length 177 [2020-09-04 13:37:14,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:14,889 INFO L479 AbstractCegarLoop]: Abstraction has 1056 states and 1190 transitions. [2020-09-04 13:37:14,890 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 13:37:14,890 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1190 transitions. [2020-09-04 13:37:14,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-09-04 13:37:14,894 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:14,894 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, 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] [2020-09-04 13:37:15,132 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:15,132 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:15,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:15,133 INFO L82 PathProgramCache]: Analyzing trace with hash -817894210, now seen corresponding path program 1 times [2020-09-04 13:37:15,133 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:15,134 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201496902] [2020-09-04 13:37:15,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:15,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:15,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:15,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:15,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:15,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:15,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-04 13:37:15,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:15,353 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 54 proven. 19 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 13:37:15,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201496902] [2020-09-04 13:37:15,354 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069598862] [2020-09-04 13:37:15,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:15,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:15,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 6 conjunts are in the unsatisfiable core [2020-09-04 13:37:15,476 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:15,553 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-04 13:37:15,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-09-04 13:37:15,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [8] total 10 [2020-09-04 13:37:15,554 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142424316] [2020-09-04 13:37:15,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-04 13:37:15,555 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:15,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-04 13:37:15,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-09-04 13:37:15,555 INFO L87 Difference]: Start difference. First operand 1056 states and 1190 transitions. Second operand 5 states. [2020-09-04 13:37:16,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:16,378 INFO L93 Difference]: Finished difference Result 2275 states and 2576 transitions. [2020-09-04 13:37:16,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-04 13:37:16,379 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2020-09-04 13:37:16,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:16,385 INFO L225 Difference]: With dead ends: 2275 [2020-09-04 13:37:16,385 INFO L226 Difference]: Without dead ends: 1369 [2020-09-04 13:37:16,388 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 179 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2020-09-04 13:37:16,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1369 states. [2020-09-04 13:37:16,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1369 to 1216. [2020-09-04 13:37:16,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2020-09-04 13:37:16,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1350 transitions. [2020-09-04 13:37:16,418 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1350 transitions. Word has length 178 [2020-09-04 13:37:16,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:16,419 INFO L479 AbstractCegarLoop]: Abstraction has 1216 states and 1350 transitions. [2020-09-04 13:37:16,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-04 13:37:16,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1350 transitions. [2020-09-04 13:37:16,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-04 13:37:16,423 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:16,423 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:16,638 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:16,638 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:16,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:16,639 INFO L82 PathProgramCache]: Analyzing trace with hash -262886545, now seen corresponding path program 1 times [2020-09-04 13:37:16,639 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:16,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049344048] [2020-09-04 13:37:16,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:16,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:16,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:16,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:16,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:16,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-04 13:37:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:16,815 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2020-09-04 13:37:16,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:16,869 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 67 proven. 26 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-09-04 13:37:16,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049344048] [2020-09-04 13:37:16,870 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376136643] [2020-09-04 13:37:16,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:17,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:17,029 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 4 conjunts are in the unsatisfiable core [2020-09-04 13:37:17,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:17,110 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 78 proven. 2 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2020-09-04 13:37:17,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:17,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 5] total 11 [2020-09-04 13:37:17,111 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637208934] [2020-09-04 13:37:17,112 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 13:37:17,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:17,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 13:37:17,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-09-04 13:37:17,113 INFO L87 Difference]: Start difference. First operand 1216 states and 1350 transitions. Second operand 11 states. [2020-09-04 13:37:19,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:19,589 INFO L93 Difference]: Finished difference Result 2742 states and 3088 transitions. [2020-09-04 13:37:19,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 13:37:19,590 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 187 [2020-09-04 13:37:19,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:19,594 INFO L225 Difference]: With dead ends: 2742 [2020-09-04 13:37:19,595 INFO L226 Difference]: Without dead ends: 1374 [2020-09-04 13:37:19,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 206 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=198, Invalid=558, Unknown=0, NotChecked=0, Total=756 [2020-09-04 13:37:19,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2020-09-04 13:37:19,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 1356. [2020-09-04 13:37:19,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1356 states. [2020-09-04 13:37:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1356 states to 1356 states and 1429 transitions. [2020-09-04 13:37:19,629 INFO L78 Accepts]: Start accepts. Automaton has 1356 states and 1429 transitions. Word has length 187 [2020-09-04 13:37:19,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:19,630 INFO L479 AbstractCegarLoop]: Abstraction has 1356 states and 1429 transitions. [2020-09-04 13:37:19,630 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 13:37:19,630 INFO L276 IsEmpty]: Start isEmpty. Operand 1356 states and 1429 transitions. [2020-09-04 13:37:19,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-09-04 13:37:19,634 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 13:37:19,634 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 13:37:19,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2020-09-04 13:37:19,848 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 13:37:19,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 13:37:19,850 INFO L82 PathProgramCache]: Analyzing trace with hash 840262598, now seen corresponding path program 1 times [2020-09-04 13:37:19,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-04 13:37:19,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927675284] [2020-09-04 13:37:19,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 13:37:19,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:19,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 13:37:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:19,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-04 13:37:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:19,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-09-04 13:37:20,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:20,077 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 81 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-04 13:37:20,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927675284] [2020-09-04 13:37:20,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2115257316] [2020-09-04 13:37:20,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:20,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 13:37:20,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 448 conjuncts, 7 conjunts are in the unsatisfiable core [2020-09-04 13:37:20,177 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-09-04 13:37:20,206 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 82 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 13:37:20,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-09-04 13:37:20,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2020-09-04 13:37:20,207 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746182521] [2020-09-04 13:37:20,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 13:37:20,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-04 13:37:20,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 13:37:20,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-04 13:37:20,208 INFO L87 Difference]: Start difference. First operand 1356 states and 1429 transitions. Second operand 7 states. [2020-09-04 13:37:21,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 13:37:21,916 INFO L93 Difference]: Finished difference Result 3291 states and 3485 transitions. [2020-09-04 13:37:21,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 13:37:21,917 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 195 [2020-09-04 13:37:21,917 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 13:37:21,918 INFO L225 Difference]: With dead ends: 3291 [2020-09-04 13:37:21,918 INFO L226 Difference]: Without dead ends: 0 [2020-09-04 13:37:21,923 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-04 13:37:21,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-04 13:37:21,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-04 13:37:21,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-04 13:37:21,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-04 13:37:21,924 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 195 [2020-09-04 13:37:21,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 13:37:21,924 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-04 13:37:21,924 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 13:37:21,925 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-04 13:37:21,925 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-04 13:37:22,137 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-09-04 13:37:22,141 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-04 13:37:23,638 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 142 [2020-09-04 13:37:24,055 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 142 [2020-09-04 13:37:25,661 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2020-09-04 13:37:26,675 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 65 [2020-09-04 13:37:27,589 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 65 [2020-09-04 13:37:27,595 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:37:27,595 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-04 13:37:27,596 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:37:27,596 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,596 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,596 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,596 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-04 13:37:27,597 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-04 13:37:27,598 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-04 13:37:27,599 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,600 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 508) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-04 13:37:27,601 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-04 13:37:27,602 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-04 13:37:27,603 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-04 13:37:27,604 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,605 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-04 13:37:27,606 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-04 13:37:27,607 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-04 13:37:27,608 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,609 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-04 13:37:27,610 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,611 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-04 13:37:27,612 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,613 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-04 13:37:27,614 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-04 13:37:27,615 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-04 13:37:27,616 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,616 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,616 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,616 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse20 (= ~a28~0 |old(~a28~0)|)) (.cse13 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse8 (= ~a25~0 |old(~a25~0)|)) (.cse21 (= ~a19~0 |old(~a19~0)|))) (let ((.cse3 (not (<= 10 |old(~a28~0)|))) (.cse6 (<= 10 ~a28~0)) (.cse10 (<= ~a28~0 |old(~a28~0)|)) (.cse18 (not (<= |old(~a19~0)| 0))) (.cse11 (not (= |old(~a25~0)| 1))) (.cse9 (= ~a17~0 8)) (.cse14 (= ~a25~0 1)) (.cse2 (not (= 8 |old(~a17~0)|))) (.cse4 (not (<= |old(~a11~0)| 0))) (.cse0 (not (<= |old(~a28~0)| 10))) (.cse17 (not (<= |old(~a17~0)| 7))) (.cse7 (= ~a19~0 1)) (.cse12 (not (<= |old(~a17~0)| 8))) (.cse1 (not (= |old(~a19~0)| 1))) (.cse16 (and .cse20 .cse13 .cse5 .cse8 .cse21)) (.cse19 (not (<= |old(~a28~0)| 9))) (.cse15 (not (= |old(~a11~0)| 1)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4 (and .cse5 .cse6 .cse7 .cse8 .cse9 .cse10)) (or .cse11 .cse12 .cse0 .cse1 .cse3 (and .cse13 .cse5 .cse6 .cse7 .cse14 .cse10) .cse15) (or .cse0 .cse16 .cse17 .cse18 .cse15) (or .cse12 .cse16 .cse19 .cse18 .cse15) (or (= 8 |old(~a28~0)|) .cse1 (and .cse20 .cse5 .cse7 .cse8 .cse9) .cse2 .cse19 .cse4) (or (and .cse20 .cse5 .cse8 .cse9 .cse21) .cse2 .cse19 .cse18 .cse4) (or .cse11 (and .cse20 .cse5 .cse9 .cse14 .cse21) .cse2 .cse4 .cse18) (or .cse11 .cse1 (and .cse20 .cse5 .cse7 .cse9 .cse14) .cse2 .cse4) (or .cse12 .cse0 .cse1 .cse17 (and .cse20 .cse13 .cse5 .cse7 .cse8) .cse15) (or .cse12 .cse1 .cse16 .cse19 .cse15)))) [2020-09-04 13:37:27,616 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-04 13:37:27,617 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,618 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-04 13:37:27,619 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-04 13:37:27,620 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,621 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-04 13:37:27,622 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-04 13:37:27,623 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-04 13:37:27,624 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-04 13:37:27,624 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-04 13:37:27,624 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-04 13:37:27,624 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-04 13:37:27,624 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a11~0 0) (= ~a19~0 1) (= ~a17~0 8) (<= ~a28~0 7)) [2020-09-04 13:37:27,624 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-04 13:37:27,624 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-04 13:37:27,625 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a19~0 1) (= ~a25~0 |old(~a25~0)|) (= ~a17~0 8)) (not (= 8 |old(~a17~0)|)) (not (<= |old(~a11~0)| 0))) [2020-09-04 13:37:27,625 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse9 (<= ~a17~0 7)) (.cse2 (<= ~a28~0 10)) (.cse7 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a11~0 1)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse12 (<= ~a11~0 0)) (.cse10 (<= ~a28~0 9)) (.cse3 (not (= |old(~a25~0)| 1))) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse1 (= ~a19~0 1)) (.cse8 (= ~a17~0 8)) (.cse5 (= ~a25~0 1))) (or (and .cse0 (<= 10 ~a28~0) .cse1 (<= 8 ~a17~0) (<= ~a17~0 8) .cse2) (and .cse3 .cse1 .cse4 .cse5 .cse6 .cse2) (and .cse3 .cse7 .cse0 .cse8 .cse5) (not (= |old(~a19~0)| 1)) (and .cse1 .cse4 .cse6 .cse2 .cse9) (and .cse1 .cse4 .cse10 .cse6) (and .cse3 .cse11 .cse12 .cse0 (not (= ~a28~0 8)) .cse1 .cse8 .cse10) (not (= 8 |old(~a17~0)|)) (and .cse7 .cse6 .cse9 .cse2) (and .cse3 .cse7 .cse0 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse7 .cse4 .cse10 .cse6) (and (= ~a28~0 |old(~a28~0)|) .cse11 .cse12 .cse0 .cse1 (= ~a25~0 |old(~a25~0)|) .cse8 .cse10) (and .cse3 .cse0 .cse1 .cse8 .cse5) (not (<= |old(~a11~0)| 0)))) [2020-09-04 13:37:27,625 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-04 13:37:27,625 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-04 13:37:27,625 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse9 (<= ~a17~0 7)) (.cse2 (<= ~a28~0 10)) (.cse7 (<= ~a19~0 0)) (.cse4 (<= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a11~0 1)) (.cse11 (= ~a17~0 |old(~a17~0)|)) (.cse12 (<= ~a11~0 0)) (.cse10 (<= ~a28~0 9)) (.cse3 (not (= |old(~a25~0)| 1))) (.cse0 (= ~a11~0 |old(~a11~0)|)) (.cse1 (= ~a19~0 1)) (.cse8 (= ~a17~0 8)) (.cse5 (= ~a25~0 1))) (or (and .cse0 (<= 10 ~a28~0) .cse1 (<= 8 ~a17~0) (<= ~a17~0 8) .cse2) (and .cse3 .cse1 .cse4 .cse5 .cse6 .cse2) (and .cse3 .cse7 .cse0 .cse8 .cse5) (not (= |old(~a19~0)| 1)) (and .cse1 .cse4 .cse6 .cse2 .cse9) (and .cse1 .cse4 .cse10 .cse6) (and .cse3 .cse11 .cse12 .cse0 (not (= ~a28~0 8)) .cse1 .cse8 .cse10) (not (= 8 |old(~a17~0)|)) (and .cse7 .cse6 .cse9 .cse2) (and .cse3 .cse7 .cse0 .cse8 .cse10) (not (<= |old(~a28~0)| 7)) (and .cse7 .cse4 .cse10 .cse6) (and (= ~a28~0 |old(~a28~0)|) .cse11 .cse12 .cse0 .cse1 (= ~a25~0 |old(~a25~0)|) .cse8 .cse10) (and .cse3 .cse0 .cse1 .cse8 .cse5) (not (<= |old(~a11~0)| 0)))) [2020-09-04 13:37:27,626 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-04 13:37:27,626 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-04 13:37:27,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 01:37:27 BoogieIcfgContainer [2020-09-04 13:37:27,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 13:37:27,657 INFO L168 Benchmark]: Toolchain (without parser) took 32788.07 ms. Allocated memory was 139.5 MB in the beginning and 588.3 MB in the end (delta: 448.8 MB). Free memory was 99.5 MB in the beginning and 344.0 MB in the end (delta: -244.5 MB). Peak memory consumption was 460.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:27,658 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 13:37:27,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 760.10 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 170.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:27,660 INFO L168 Benchmark]: Boogie Preprocessor took 113.97 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 166.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:27,660 INFO L168 Benchmark]: RCFGBuilder took 1229.34 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 181.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:27,661 INFO L168 Benchmark]: TraceAbstraction took 30676.86 ms. Allocated memory was 238.0 MB in the beginning and 588.3 MB in the end (delta: 350.2 MB). Free memory was 181.0 MB in the beginning and 344.0 MB in the end (delta: -163.0 MB). Peak memory consumption was 443.2 MB. Max. memory is 7.1 GB. [2020-09-04 13:37:27,667 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 139.5 MB. Free memory was 119.7 MB in the beginning and 119.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 760.10 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 99.3 MB in the beginning and 170.8 MB in the end (delta: -71.5 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.97 ms. Allocated memory is still 204.5 MB. Free memory was 170.8 MB in the beginning and 166.0 MB in the end (delta: 4.8 MB). Peak memory consumption was 4.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1229.34 ms. Allocated memory was 204.5 MB in the beginning and 238.0 MB in the end (delta: 33.6 MB). Free memory was 166.0 MB in the beginning and 181.0 MB in the end (delta: -15.0 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30676.86 ms. Allocated memory was 238.0 MB in the beginning and 588.3 MB in the end (delta: 350.2 MB). Free memory was 181.0 MB in the beginning and 344.0 MB in the end (delta: -163.0 MB). Peak memory consumption was 443.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 508]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((((((((((((a11 == \old(a11) && 10 <= a28) && a19 == 1) && 8 <= a17) && a17 <= 8) && a28 <= 10) || (((((!(\old(a25) == 1) && a19 == 1) && a17 <= \old(a17)) && a25 == 1) && a11 == 1) && a28 <= 10)) || ((((!(\old(a25) == 1) && a19 <= 0) && a11 == \old(a11)) && a17 == 8) && a25 == 1)) || !(\old(a19) == 1)) || ((((a19 == 1 && a17 <= \old(a17)) && a11 == 1) && a28 <= 10) && a17 <= 7)) || (((a19 == 1 && a17 <= \old(a17)) && a28 <= 9) && a11 == 1)) || (((((((!(\old(a25) == 1) && a17 == \old(a17)) && a11 <= 0) && a11 == \old(a11)) && !(a28 == 8)) && a19 == 1) && a17 == 8) && a28 <= 9)) || !(8 == \old(a17))) || (((a19 <= 0 && a11 == 1) && a17 <= 7) && a28 <= 10)) || ((((!(\old(a25) == 1) && a19 <= 0) && a11 == \old(a11)) && a17 == 8) && a28 <= 9)) || !(\old(a28) <= 7)) || (((a19 <= 0 && a17 <= \old(a17)) && a28 <= 9) && a11 == 1)) || (((((((a28 == \old(a28) && a17 == \old(a17)) && a11 <= 0) && a11 == \old(a11)) && a19 == 1) && a25 == \old(a25)) && a17 == 8) && a28 <= 9)) || ((((!(\old(a25) == 1) && a11 == \old(a11)) && a19 == 1) && a17 == 8) && a25 == 1)) || !(\old(a11) <= 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 25.0s, OverallIterations: 10, TraceHistogramMax: 4, AutomataDifference: 17.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 5.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 604 SDtfs, 6945 SDslu, 477 SDs, 0 SdLazy, 10018 SolverSat, 2030 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 11.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1659 GetRequests, 1546 SyntacticMatches, 0 SemanticMatches, 113 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 2.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2439occurred in iteration=4, 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, 10 MinimizatonAttempts, 1323 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 107 PreInvPairs, 147 NumberOfFragments, 883 HoareAnnotationTreeSize, 107 FomulaSimplifications, 51104 FormulaSimplificationTreeSizeReduction, 1.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 16757 FormulaSimplificationTreeSizeReductionInter, 3.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 3078 NumberOfCodeBlocks, 3078 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 3059 ConstructedInterpolants, 0 QuantifiedInterpolants, 1221841 SizeOfPredicates, 7 NumberOfNonLiveVariables, 3816 ConjunctsInSsa, 48 ConjunctsInUnsatCore, 19 InterpolantComputations, 5 PerfectInterpolantSequences, 1005/1098 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...