/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_label21.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:51:13,302 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:51:13,305 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:51:13,346 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:51:13,347 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:51:13,358 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:51:13,359 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:51:13,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:51:13,365 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:51:13,366 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:51:13,368 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:51:13,369 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:51:13,369 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:51:13,370 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:51:13,373 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:51:13,375 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:51:13,376 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:51:13,380 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:51:13,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:51:13,388 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:51:13,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:51:13,392 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:51:13,393 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:51:13,394 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:51:13,399 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 16:51:13,400 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 16:51:13,400 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 16:51:13,403 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 16:51:13,403 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 16:51:13,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 16:51:13,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 16:51:13,406 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 16:51:13,407 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 16:51:13,407 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 16:51:13,409 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 16:51:13,409 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 16:51:13,410 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 16:51:13,410 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 16:51:13,410 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:51:13,411 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:51:13,412 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:51:13,413 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-08-22 16:51:13,456 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:51:13,457 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:51:13,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:51:13,459 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:51:13,459 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:51:13,460 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:51:13,460 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:51:13,460 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:51:13,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:51:13,461 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:51:13,461 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:51:13,462 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:51:13,462 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:51:13,462 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:51:13,463 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:51:13,463 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:51:13,463 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:51:13,463 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:51:13,463 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:51:13,464 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:51:13,464 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:51:13,464 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:51:13,464 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:51:13,464 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:51:13,464 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:51:13,465 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:51:13,465 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:51:13,465 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:51:13,465 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:51:13,465 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:51:13,781 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:51:13,792 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:51:13,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:51:13,797 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:51:13,798 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:51:13,798 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-08-22 16:51:13,869 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75371b9aa/80179b2c95a040e18e628084050eb7f7/FLAG0e8e8f399 [2020-08-22 16:51:14,434 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:51:14,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label21.c [2020-08-22 16:51:14,458 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75371b9aa/80179b2c95a040e18e628084050eb7f7/FLAG0e8e8f399 [2020-08-22 16:51:14,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/75371b9aa/80179b2c95a040e18e628084050eb7f7 [2020-08-22 16:51:14,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:51:14,726 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:51:14,730 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:51:14,730 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:51:14,734 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:51:14,735 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:51:14" (1/1) ... [2020-08-22 16:51:14,738 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd39e7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:14, skipping insertion in model container [2020-08-22 16:51:14,739 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:51:14" (1/1) ... [2020-08-22 16:51:14,748 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:51:14,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:51:15,302 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:51:15,308 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:51:15,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:51:15,478 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:51:15,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15 WrapperNode [2020-08-22 16:51:15,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:51:15,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:51:15,480 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:51:15,480 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:51:15,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,520 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,521 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,583 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,588 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... [2020-08-22 16:51:15,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:51:15,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:51:15,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:51:15,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:51:15,597 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:51:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:51:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:51:15,670 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 16:51:15,671 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:51:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 16:51:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:51:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:51:15,671 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 16:51:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:51:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:51:15,672 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:51:16,808 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:51:16,810 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:51:16,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:51:16 BoogieIcfgContainer [2020-08-22 16:51:16,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:51:16,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:51:16,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:51:16,827 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:51:16,828 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:51:14" (1/3) ... [2020-08-22 16:51:16,829 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaae8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:51:16, skipping insertion in model container [2020-08-22 16:51:16,829 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:51:15" (2/3) ... [2020-08-22 16:51:16,830 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eaae8be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:51:16, skipping insertion in model container [2020-08-22 16:51:16,830 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:51:16" (3/3) ... [2020-08-22 16:51:16,832 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label21.c [2020-08-22 16:51:16,843 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:51:16,861 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:51:16,876 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:51:16,912 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:51:16,912 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:51:16,912 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:51:16,913 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:51:16,913 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:51:16,913 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:51:16,913 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:51:16,914 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:51:16,946 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-08-22 16:51:16,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-08-22 16:51:16,970 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:16,971 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] [2020-08-22 16:51:16,972 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:16,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:16,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1487720814, now seen corresponding path program 1 times [2020-08-22 16:51:16,986 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:16,986 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617413048] [2020-08-22 16:51:16,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:17,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:17,477 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:17,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:51:17,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617413048] [2020-08-22 16:51:17,561 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:51:17,561 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:51:17,562 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450280972] [2020-08-22 16:51:17,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 16:51:17,569 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:17,588 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 16:51:17,589 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:51:17,592 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-08-22 16:51:19,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:19,236 INFO L93 Difference]: Finished difference Result 627 states and 1073 transitions. [2020-08-22 16:51:19,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:51:19,240 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 102 [2020-08-22 16:51:19,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:19,269 INFO L225 Difference]: With dead ends: 627 [2020-08-22 16:51:19,269 INFO L226 Difference]: Without dead ends: 327 [2020-08-22 16:51:19,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 16:51:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states. [2020-08-22 16:51:19,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 319. [2020-08-22 16:51:19,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2020-08-22 16:51:19,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 480 transitions. [2020-08-22 16:51:19,381 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 480 transitions. Word has length 102 [2020-08-22 16:51:19,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:19,382 INFO L479 AbstractCegarLoop]: Abstraction has 319 states and 480 transitions. [2020-08-22 16:51:19,382 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 16:51:19,382 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 480 transitions. [2020-08-22 16:51:19,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-08-22 16:51:19,388 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:19,388 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 16:51:19,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:51:19,389 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:19,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:19,389 INFO L82 PathProgramCache]: Analyzing trace with hash 1854436435, now seen corresponding path program 1 times [2020-08-22 16:51:19,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:19,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845709179] [2020-08-22 16:51:19,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:19,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:19,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:19,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:19,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:51:19,614 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845709179] [2020-08-22 16:51:19,614 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:51:19,615 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:51:19,615 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835995769] [2020-08-22 16:51:19,617 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:51:19,617 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:19,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:51:19,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:51:19,618 INFO L87 Difference]: Start difference. First operand 319 states and 480 transitions. Second operand 8 states. [2020-08-22 16:51:20,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:20,543 INFO L93 Difference]: Finished difference Result 635 states and 968 transitions. [2020-08-22 16:51:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 16:51:20,543 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-08-22 16:51:20,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:20,547 INFO L225 Difference]: With dead ends: 635 [2020-08-22 16:51:20,547 INFO L226 Difference]: Without dead ends: 322 [2020-08-22 16:51:20,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:51:20,551 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2020-08-22 16:51:20,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 310. [2020-08-22 16:51:20,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 310 states. [2020-08-22 16:51:20,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 437 transitions. [2020-08-22 16:51:20,593 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 437 transitions. Word has length 117 [2020-08-22 16:51:20,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:20,594 INFO L479 AbstractCegarLoop]: Abstraction has 310 states and 437 transitions. [2020-08-22 16:51:20,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:51:20,594 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 437 transitions. [2020-08-22 16:51:20,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-08-22 16:51:20,598 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:20,598 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-08-22 16:51:20,598 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 16:51:20,599 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:20,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:20,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1506178426, now seen corresponding path program 1 times [2020-08-22 16:51:20,600 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:20,600 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475879134] [2020-08-22 16:51:20,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:20,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:20,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:20,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:20,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:20,828 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:51:20,829 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475879134] [2020-08-22 16:51:20,829 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:51:20,829 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 16:51:20,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036606486] [2020-08-22 16:51:20,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 16:51:20,831 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:20,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 16:51:20,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 16:51:20,831 INFO L87 Difference]: Start difference. First operand 310 states and 437 transitions. Second operand 8 states. [2020-08-22 16:51:22,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:22,628 INFO L93 Difference]: Finished difference Result 1088 states and 1576 transitions. [2020-08-22 16:51:22,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 16:51:22,635 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-08-22 16:51:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:22,641 INFO L225 Difference]: With dead ends: 1088 [2020-08-22 16:51:22,641 INFO L226 Difference]: Without dead ends: 784 [2020-08-22 16:51:22,643 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:51:22,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 784 states. [2020-08-22 16:51:22,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 784 to 612. [2020-08-22 16:51:22,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 612 states. [2020-08-22 16:51:22,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 612 states to 612 states and 841 transitions. [2020-08-22 16:51:22,679 INFO L78 Accepts]: Start accepts. Automaton has 612 states and 841 transitions. Word has length 124 [2020-08-22 16:51:22,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:22,679 INFO L479 AbstractCegarLoop]: Abstraction has 612 states and 841 transitions. [2020-08-22 16:51:22,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 16:51:22,679 INFO L276 IsEmpty]: Start isEmpty. Operand 612 states and 841 transitions. [2020-08-22 16:51:22,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2020-08-22 16:51:22,683 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:22,683 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:51:22,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:51:22,684 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:22,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:22,684 INFO L82 PathProgramCache]: Analyzing trace with hash -683087106, now seen corresponding path program 1 times [2020-08-22 16:51:22,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:22,685 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856775714] [2020-08-22 16:51:22,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:22,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:22,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:22,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:22,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:22,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:22,961 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 22 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:51:22,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856775714] [2020-08-22 16:51:22,961 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456028318] [2020-08-22 16:51:22,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:23,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:23,059 INFO L263 TraceCheckSpWp]: Trace formula consists of 336 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:51:23,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:51:23,198 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 23 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:51:23,198 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:51:23,198 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2020-08-22 16:51:23,199 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685824233] [2020-08-22 16:51:23,200 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:51:23,200 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:23,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:51:23,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:51:23,201 INFO L87 Difference]: Start difference. First operand 612 states and 841 transitions. Second operand 3 states. [2020-08-22 16:51:23,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:23,820 INFO L93 Difference]: Finished difference Result 1803 states and 2531 transitions. [2020-08-22 16:51:23,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:51:23,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2020-08-22 16:51:23,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:23,832 INFO L225 Difference]: With dead ends: 1803 [2020-08-22 16:51:23,832 INFO L226 Difference]: Without dead ends: 1197 [2020-08-22 16:51:23,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 136 GetRequests, 130 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 16:51:23,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2020-08-22 16:51:23,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1051. [2020-08-22 16:51:23,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1051 states. [2020-08-22 16:51:23,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1051 states to 1051 states and 1336 transitions. [2020-08-22 16:51:23,908 INFO L78 Accepts]: Start accepts. Automaton has 1051 states and 1336 transitions. Word has length 128 [2020-08-22 16:51:23,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:23,909 INFO L479 AbstractCegarLoop]: Abstraction has 1051 states and 1336 transitions. [2020-08-22 16:51:23,909 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:51:23,909 INFO L276 IsEmpty]: Start isEmpty. Operand 1051 states and 1336 transitions. [2020-08-22 16:51:23,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-08-22 16:51:23,916 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:23,916 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, 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] [2020-08-22 16:51:24,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:24,130 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:24,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:24,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1395120153, now seen corresponding path program 1 times [2020-08-22 16:51:24,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:24,131 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745041921] [2020-08-22 16:51:24,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:24,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:24,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:24,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:24,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:24,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:24,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-22 16:51:24,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:24,289 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 39 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 16:51:24,289 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745041921] [2020-08-22 16:51:24,290 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084839222] [2020-08-22 16:51:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:24,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:24,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:51:24,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:51:24,494 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 40 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 16:51:24,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:51:24,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-08-22 16:51:24,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183142175] [2020-08-22 16:51:24,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 16:51:24,497 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:24,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 16:51:24,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:51:24,498 INFO L87 Difference]: Start difference. First operand 1051 states and 1336 transitions. Second operand 10 states. [2020-08-22 16:51:28,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:28,741 INFO L93 Difference]: Finished difference Result 4391 states and 6284 transitions. [2020-08-22 16:51:28,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-08-22 16:51:28,742 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 141 [2020-08-22 16:51:28,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:28,767 INFO L225 Difference]: With dead ends: 4391 [2020-08-22 16:51:28,768 INFO L226 Difference]: Without dead ends: 3346 [2020-08-22 16:51:28,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 185 GetRequests, 156 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=188, Invalid=742, Unknown=0, NotChecked=0, Total=930 [2020-08-22 16:51:28,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3346 states. [2020-08-22 16:51:28,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3346 to 3131. [2020-08-22 16:51:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3131 states. [2020-08-22 16:51:28,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3131 states to 3131 states and 3873 transitions. [2020-08-22 16:51:28,909 INFO L78 Accepts]: Start accepts. Automaton has 3131 states and 3873 transitions. Word has length 141 [2020-08-22 16:51:28,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:28,910 INFO L479 AbstractCegarLoop]: Abstraction has 3131 states and 3873 transitions. [2020-08-22 16:51:28,910 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 16:51:28,910 INFO L276 IsEmpty]: Start isEmpty. Operand 3131 states and 3873 transitions. [2020-08-22 16:51:28,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-08-22 16:51:28,922 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:28,922 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 16:51:29,136 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:29,136 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:29,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:29,137 INFO L82 PathProgramCache]: Analyzing trace with hash -446184588, now seen corresponding path program 1 times [2020-08-22 16:51:29,137 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:29,137 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771834379] [2020-08-22 16:51:29,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:29,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-08-22 16:51:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-08-22 16:51:29,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-08-22 16:51:29,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,362 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 88 proven. 43 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-08-22 16:51:29,362 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771834379] [2020-08-22 16:51:29,363 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [21533173] [2020-08-22 16:51:29,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:29,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:29,522 INFO L263 TraceCheckSpWp]: Trace formula consists of 530 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:51:29,527 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:51:29,612 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2020-08-22 16:51:29,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:51:29,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 10 [2020-08-22 16:51:29,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199241948] [2020-08-22 16:51:29,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 16:51:29,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:29,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 16:51:29,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:51:29,616 INFO L87 Difference]: Start difference. First operand 3131 states and 3873 transitions. Second operand 10 states. [2020-08-22 16:51:30,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:30,970 INFO L93 Difference]: Finished difference Result 5551 states and 6865 transitions. [2020-08-22 16:51:30,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 16:51:30,970 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 190 [2020-08-22 16:51:30,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:30,984 INFO L225 Difference]: With dead ends: 5551 [2020-08-22 16:51:30,984 INFO L226 Difference]: Without dead ends: 2968 [2020-08-22 16:51:30,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 214 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210 [2020-08-22 16:51:30,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2968 states. [2020-08-22 16:51:31,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2968 to 2966. [2020-08-22 16:51:31,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2966 states. [2020-08-22 16:51:31,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2966 states to 2966 states and 3416 transitions. [2020-08-22 16:51:31,072 INFO L78 Accepts]: Start accepts. Automaton has 2966 states and 3416 transitions. Word has length 190 [2020-08-22 16:51:31,073 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:31,073 INFO L479 AbstractCegarLoop]: Abstraction has 2966 states and 3416 transitions. [2020-08-22 16:51:31,073 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 16:51:31,073 INFO L276 IsEmpty]: Start isEmpty. Operand 2966 states and 3416 transitions. [2020-08-22 16:51:31,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-08-22 16:51:31,082 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:31,083 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 16:51:31,298 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:31,299 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:31,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:31,300 INFO L82 PathProgramCache]: Analyzing trace with hash -486995972, now seen corresponding path program 1 times [2020-08-22 16:51:31,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:31,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [320396108] [2020-08-22 16:51:31,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:31,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:31,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:31,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 16:51:31,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-08-22 16:51:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2020-08-22 16:51:31,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,491 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 96 proven. 43 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2020-08-22 16:51:31,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [320396108] [2020-08-22 16:51:31,492 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801236908] [2020-08-22 16:51:31,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:31,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:31,631 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:51:31,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:51:31,746 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 142 proven. 2 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-08-22 16:51:31,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-08-22 16:51:31,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-08-22 16:51:31,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910445901] [2020-08-22 16:51:31,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 16:51:31,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:31,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 16:51:31,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-08-22 16:51:31,750 INFO L87 Difference]: Start difference. First operand 2966 states and 3416 transitions. Second operand 10 states. [2020-08-22 16:51:35,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:35,472 INFO L93 Difference]: Finished difference Result 5948 states and 6879 transitions. [2020-08-22 16:51:35,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-08-22 16:51:35,473 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-08-22 16:51:35,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:35,487 INFO L225 Difference]: With dead ends: 5948 [2020-08-22 16:51:35,488 INFO L226 Difference]: Without dead ends: 2978 [2020-08-22 16:51:35,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 219 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=200, Invalid=792, Unknown=0, NotChecked=0, Total=992 [2020-08-22 16:51:35,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2978 states. [2020-08-22 16:51:35,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2978 to 2827. [2020-08-22 16:51:35,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2827 states. [2020-08-22 16:51:35,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2827 states to 2827 states and 3114 transitions. [2020-08-22 16:51:35,570 INFO L78 Accepts]: Start accepts. Automaton has 2827 states and 3114 transitions. Word has length 194 [2020-08-22 16:51:35,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:35,570 INFO L479 AbstractCegarLoop]: Abstraction has 2827 states and 3114 transitions. [2020-08-22 16:51:35,571 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 16:51:35,571 INFO L276 IsEmpty]: Start isEmpty. Operand 2827 states and 3114 transitions. [2020-08-22 16:51:35,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-08-22 16:51:35,578 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:51:35,579 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:51:35,792 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:35,793 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:51:35,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:51:35,793 INFO L82 PathProgramCache]: Analyzing trace with hash -768100218, now seen corresponding path program 1 times [2020-08-22 16:51:35,794 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:51:35,794 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482778507] [2020-08-22 16:51:35,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:51:35,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:35,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:51:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:35,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-08-22 16:51:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:35,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-08-22 16:51:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:36,123 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 98 proven. 8 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-08-22 16:51:36,125 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482778507] [2020-08-22 16:51:36,126 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [103690864] [2020-08-22 16:51:36,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:36,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:51:36,246 INFO L263 TraceCheckSpWp]: Trace formula consists of 463 conjuncts, 4 conjunts are in the unsatisfiable core [2020-08-22 16:51:36,248 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:51:36,325 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-08-22 16:51:36,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:51:36,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-08-22 16:51:36,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412050821] [2020-08-22 16:51:36,327 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 16:51:36,327 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:51:36,327 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 16:51:36,327 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:51:36,327 INFO L87 Difference]: Start difference. First operand 2827 states and 3114 transitions. Second operand 3 states. [2020-08-22 16:51:36,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:51:36,785 INFO L93 Difference]: Finished difference Result 5070 states and 5576 transitions. [2020-08-22 16:51:36,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 16:51:36,791 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 208 [2020-08-22 16:51:36,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:51:36,793 INFO L225 Difference]: With dead ends: 5070 [2020-08-22 16:51:36,793 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 16:51:36,806 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2020-08-22 16:51:36,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 16:51:36,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 16:51:36,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 16:51:36,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 16:51:36,807 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2020-08-22 16:51:36,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:51:36,807 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 16:51:36,807 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 16:51:36,807 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 16:51:36,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 16:51:37,014 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-08-22 16:51:37,017 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 16:51:38,134 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 61 [2020-08-22 16:51:38,344 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-08-22 16:51:38,504 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-08-22 16:51:38,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:51:38,508 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)|)) [2020-08-22 16:51:38,508 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:51:38,508 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,509 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,510 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,510 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,510 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,510 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-08-22 16:51:38,510 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-08-22 16:51:38,511 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,512 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-08-22 16:51:38,513 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,513 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-08-22 16:51:38,513 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-08-22 16:51:38,513 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-08-22 16:51:38,513 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-08-22 16:51:38,513 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-08-22 16:51:38,514 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-08-22 16:51:38,514 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-08-22 16:51:38,515 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-08-22 16:51:38,515 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-08-22 16:51:38,515 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-08-22 16:51:38,515 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-08-22 16:51:38,515 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-08-22 16:51:38,516 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-08-22 16:51:38,516 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-08-22 16:51:38,516 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-08-22 16:51:38,516 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,518 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 460) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-08-22 16:51:38,519 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-08-22 16:51:38,522 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-08-22 16:51:38,522 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-08-22 16:51:38,522 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,523 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-08-22 16:51:38,524 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-08-22 16:51:38,525 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-08-22 16:51:38,529 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-08-22 16:51:38,529 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-08-22 16:51:38,529 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-08-22 16:51:38,529 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-08-22 16:51:38,530 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,531 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,531 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,531 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,531 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,531 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-08-22 16:51:38,531 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-08-22 16:51:38,532 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-08-22 16:51:38,533 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-08-22 16:51:38,536 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-08-22 16:51:38,536 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-08-22 16:51:38,536 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-08-22 16:51:38,536 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-08-22 16:51:38,536 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,537 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,537 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,537 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,537 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-08-22 16:51:38,537 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,537 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-08-22 16:51:38,538 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-08-22 16:51:38,539 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-08-22 16:51:38,540 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,541 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-08-22 16:51:38,542 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,543 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-08-22 16:51:38,544 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,545 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,546 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse13 (= ~a25~0 |old(~a25~0)|)) (.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse19 (= ~a17~0 |old(~a17~0)|)) (.cse5 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a25~0 1)) (.cse9 (= ~a19~0 |old(~a19~0)|))) (let ((.cse3 (not (<= 8 |old(~a17~0)|))) (.cse6 (<= 8 ~a17~0)) (.cse8 (<= ~a17~0 8)) (.cse0 (not (= |old(~a25~0)| 1))) (.cse15 (and .cse4 .cse19 .cse5 .cse7 .cse9)) (.cse2 (not (= |old(~a19~0)| 1))) (.cse16 (and .cse4 .cse19 .cse5 .cse13 .cse9)) (.cse1 (not (<= |old(~a17~0)| 8))) (.cse10 (not (<= |old(~a28~0)| 10))) (.cse17 (not (<= |old(~a25~0)| 0))) (.cse12 (<= 10 ~a28~0)) (.cse14 (<= ~a28~0 10)) (.cse11 (not (<= 10 |old(~a28~0)|))) (.cse18 (not (<= |old(~a19~0)| 0)))) (and (or .cse0 .cse1 .cse2 .cse3 (and .cse4 .cse5 .cse6 .cse7 .cse8 .cse9)) (or .cse1 .cse10 .cse2 .cse3 .cse11 (and .cse5 .cse12 .cse13 .cse6 .cse8 .cse14 .cse9)) (or .cse0 (not (<= |old(~a28~0)| 7)) .cse1 .cse15 .cse2) (or .cse1 .cse16 .cse17 (not (<= |old(~a28~0)| 9)) .cse18) (or .cse0 .cse1 .cse10 .cse15 .cse18) (or .cse1 .cse10 .cse2 .cse16 .cse17) (or .cse1 .cse10 .cse17 (and .cse19 .cse5 .cse12 .cse13 .cse14 .cse9) .cse11 .cse18)))) [2020-08-22 16:51:38,546 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-08-22 16:51:38,547 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-08-22 16:51:38,548 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-08-22 16:51:38,549 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-08-22 16:51:38,550 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,551 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-08-22 16:51:38,552 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-08-22 16:51:38,553 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-08-22 16:51:38,554 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-08-22 16:51:38,554 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-08-22 16:51:38,554 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-08-22 16:51:38,554 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (<= 8 ~a17~0) (<= ~a28~0 7) (<= ~a17~0 8) (<= ~a25~0 0)) [2020-08-22 16:51:38,554 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-08-22 16:51:38,554 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-08-22 16:51:38,554 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (not (<= |old(~a25~0)| 0)) (and (= ~a28~0 |old(~a28~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (<= 8 ~a17~0) (<= ~a17~0 8) (= ~a19~0 |old(~a19~0)|))) [2020-08-22 16:51:38,555 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse1 (= ~a25~0 1)) (.cse0 (= ~a19~0 1)) (.cse5 (<= 8 ~a17~0)) (.cse3 (<= ~a19~0 0)) (.cse2 (<= ~a17~0 8)) (.cse6 (<= ~a25~0 0)) (.cse4 (<= ~a28~0 10))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= ~a28~0 7) .cse2) (and .cse3 .cse1 .cse2 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse2 .cse4 .cse6) (and .cse0 (<= 10 ~a28~0) .cse5 .cse2 .cse4) (and .cse3 .cse2 .cse6 .cse4))) [2020-08-22 16:51:38,555 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-08-22 16:51:38,555 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-08-22 16:51:38,555 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse1 (= ~a25~0 1)) (.cse0 (= ~a19~0 1)) (.cse5 (<= 8 ~a17~0)) (.cse3 (<= ~a19~0 0)) (.cse2 (<= ~a17~0 8)) (.cse6 (<= ~a25~0 0)) (.cse4 (<= ~a28~0 10))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (not (<= 8 |old(~a17~0)|)) (and .cse0 .cse1 (<= ~a28~0 7) .cse2) (and .cse3 .cse1 .cse2 .cse4) (not (<= |old(~a25~0)| 0)) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse2 .cse4 .cse6) (and .cse0 (<= 10 ~a28~0) .cse5 .cse2 .cse4) (and .cse3 .cse2 .cse6 .cse4))) [2020-08-22 16:51:38,555 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-08-22 16:51:38,556 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-08-22 16:51:38,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:51:38 BoogieIcfgContainer [2020-08-22 16:51:38,600 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:51:38,603 INFO L168 Benchmark]: Toolchain (without parser) took 23876.73 ms. Allocated memory was 142.6 MB in the beginning and 500.7 MB in the end (delta: 358.1 MB). Free memory was 103.9 MB in the beginning and 340.0 MB in the end (delta: -236.2 MB). Peak memory consumption was 372.9 MB. Max. memory is 7.1 GB. [2020-08-22 16:51:38,604 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 16:51:38,606 INFO L168 Benchmark]: CACSL2BoogieTranslator took 749.11 ms. Allocated memory was 142.6 MB in the beginning and 207.6 MB in the end (delta: 65.0 MB). Free memory was 103.7 MB in the beginning and 174.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. [2020-08-22 16:51:38,609 INFO L168 Benchmark]: Boogie Preprocessor took 115.48 ms. Allocated memory is still 207.6 MB. Free memory was 174.2 MB in the beginning and 169.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:51:38,613 INFO L168 Benchmark]: RCFGBuilder took 1226.95 ms. Allocated memory was 207.6 MB in the beginning and 235.4 MB in the end (delta: 27.8 MB). Free memory was 169.6 MB in the beginning and 175.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:51:38,614 INFO L168 Benchmark]: TraceAbstraction took 21776.74 ms. Allocated memory was 235.4 MB in the beginning and 500.7 MB in the end (delta: 265.3 MB). Free memory was 173.9 MB in the beginning and 340.0 MB in the end (delta: -166.1 MB). Peak memory consumption was 350.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:51:38,621 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.6 MB. Free memory was 124.1 MB in the beginning and 123.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 749.11 ms. Allocated memory was 142.6 MB in the beginning and 207.6 MB in the end (delta: 65.0 MB). Free memory was 103.7 MB in the beginning and 174.2 MB in the end (delta: -70.5 MB). Peak memory consumption was 33.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 115.48 ms. Allocated memory is still 207.6 MB. Free memory was 174.2 MB in the beginning and 169.6 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1226.95 ms. Allocated memory was 207.6 MB in the beginning and 235.4 MB in the end (delta: 27.8 MB). Free memory was 169.6 MB in the beginning and 175.2 MB in the end (delta: -5.6 MB). Peak memory consumption was 78.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21776.74 ms. Allocated memory was 235.4 MB in the beginning and 500.7 MB in the end (delta: 265.3 MB). Free memory was 173.9 MB in the beginning and 340.0 MB in the end (delta: -166.1 MB). Peak memory consumption was 350.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 460]: 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: (((((((((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || !(\old(a19) == 1)) || !(8 <= \old(a17))) || (((a19 == 1 && a25 == 1) && a28 <= 7) && a17 <= 8)) || (((a19 <= 0 && a25 == 1) && a17 <= 8) && a28 <= 10)) || !(\old(a25) <= 0)) || (((a19 == 1 && 8 <= a17) && a25 == 1) && a17 <= 8)) || (((a19 == 1 && a17 <= 8) && a28 <= 10) && a25 <= 0)) || ((((a19 == 1 && 10 <= a28) && 8 <= a17) && a17 <= 8) && a28 <= 10)) || (((a19 <= 0 && a17 <= 8) && a25 <= 0) && a28 <= 10) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 20.1s, OverallIterations: 8, TraceHistogramMax: 5, AutomataDifference: 14.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 526 SDtfs, 5187 SDslu, 529 SDs, 0 SdLazy, 9192 SolverSat, 1698 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1036 GetRequests, 926 SyntacticMatches, 1 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 2.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3131occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 706 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 93 PreInvPairs, 135 NumberOfFragments, 565 HoareAnnotationTreeSize, 93 FomulaSimplifications, 39370 FormulaSimplificationTreeSizeReduction, 0.3s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2234 FormulaSimplificationTreeSizeReductionInter, 1.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 2065 NumberOfCodeBlocks, 2065 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2052 ConstructedInterpolants, 0 QuantifiedInterpolants, 878711 SizeOfPredicates, 6 NumberOfNonLiveVariables, 2256 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 13 InterpolantComputations, 5 PerfectInterpolantSequences, 1026/1129 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...