/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 22:34:03,385 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 22:34:03,388 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 22:34:03,436 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-06 22:34:03,465 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 22:34:03,473 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 22:34:03,475 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 22:34:03,477 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 22:34:03,478 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 22:34:03,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 22:34:03,489 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 22:34:03,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 22:34:03,496 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 22:34:03,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 22:34:03,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 22:34:03,501 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 22:34:03,510 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 22:34:03,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 22:34:03,522 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 22:34:03,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 22:34:03,523 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 [2020-11-06 22:34:03,575 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 22:34:03,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 22:34:03,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 22:34:03,580 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 22:34:03,580 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 22:34:03,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 22:34:03,580 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 22:34:03,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 22:34:03,581 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 22:34:03,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 22:34:03,582 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 22:34:03,582 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 22:34:03,582 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 22:34:03,582 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 22:34:03,583 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 22:34:03,583 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 22:34:03,583 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 22:34:03,583 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 22:34:03,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 22:34:03,584 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 22:34:03,584 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 22:34:03,584 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 22:34:03,584 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 22:34:03,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 22:34:03,585 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 22:34:03,585 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 22:34:03,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 22:34:03,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 22:34:03,586 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 22:34:03,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 22:34:03,941 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 22:34:03,968 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 22:34:03,971 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 22:34:03,972 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 22:34:03,973 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 22:34:03,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-11-06 22:34:04,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace93323d/b78dfb256d3d4ab89ef7b8080839c6a4/FLAG20dfc90e4 [2020-11-06 22:34:04,791 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 22:34:04,792 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-11-06 22:34:04,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace93323d/b78dfb256d3d4ab89ef7b8080839c6a4/FLAG20dfc90e4 [2020-11-06 22:34:05,030 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ace93323d/b78dfb256d3d4ab89ef7b8080839c6a4 [2020-11-06 22:34:05,033 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 22:34:05,040 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 22:34:05,042 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 22:34:05,042 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 22:34:05,046 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 22:34:05,047 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,050 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@109b8f3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05, skipping insertion in model container [2020-11-06 22:34:05,050 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,058 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 22:34:05,103 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 22:34:05,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:34:05,550 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 22:34:05,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 22:34:05,785 INFO L208 MainTranslator]: Completed translation [2020-11-06 22:34:05,787 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05 WrapperNode [2020-11-06 22:34:05,788 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 22:34:05,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 22:34:05,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 22:34:05,791 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 22:34:05,804 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,869 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,893 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (1/1) ... [2020-11-06 22:34:05,904 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 22:34:05,905 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 22:34:05,906 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 22:34:05,906 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 22:34:05,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (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 [2020-11-06 22:34:05,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 22:34:05,985 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 22:34:05,986 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 22:34:05,986 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-06 22:34:05,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 22:34:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-06 22:34:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 22:34:05,986 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 22:34:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 22:34:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 22:34:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 22:34:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-06 22:34:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 22:34:05,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 22:34:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 22:34:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 22:34:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 22:34:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 22:34:05,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 22:34:07,505 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 22:34:07,505 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-06 22:34:07,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:34:07 BoogieIcfgContainer [2020-11-06 22:34:07,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 22:34:07,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 22:34:07,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 22:34:07,513 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 22:34:07,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 10:34:05" (1/3) ... [2020-11-06 22:34:07,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753d51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:34:07, skipping insertion in model container [2020-11-06 22:34:07,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 10:34:05" (2/3) ... [2020-11-06 22:34:07,515 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@753d51a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 10:34:07, skipping insertion in model container [2020-11-06 22:34:07,515 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 10:34:07" (3/3) ... [2020-11-06 22:34:07,516 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-11-06 22:34:07,531 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 22:34:07,535 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 22:34:07,548 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 22:34:07,577 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 22:34:07,577 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 22:34:07,577 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 22:34:07,577 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 22:34:07,577 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 22:34:07,577 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 22:34:07,578 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 22:34:07,578 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 22:34:07,600 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-11-06 22:34:07,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2020-11-06 22:34:07,611 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:07,613 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] [2020-11-06 22:34:07,613 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:07,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:07,620 INFO L82 PathProgramCache]: Analyzing trace with hash 2127735041, now seen corresponding path program 1 times [2020-11-06 22:34:07,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:07,630 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [461109130] [2020-11-06 22:34:07,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:07,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:08,296 WARN L194 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:08,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:08,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:34:08,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [461109130] [2020-11-06 22:34:08,401 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:34:08,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-06 22:34:08,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1466702614] [2020-11-06 22:34:08,412 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-06 22:34:08,413 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:08,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-06 22:34:08,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-06 22:34:08,433 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-11-06 22:34:08,682 WARN L194 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:10,916 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:10,917 INFO L93 Difference]: Finished difference Result 562 states and 962 transitions. [2020-11-06 22:34:10,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-06 22:34:10,927 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 92 [2020-11-06 22:34:10,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:10,941 INFO L225 Difference]: With dead ends: 562 [2020-11-06 22:34:10,942 INFO L226 Difference]: Without dead ends: 287 [2020-11-06 22:34:10,949 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:34:10,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-11-06 22:34:11,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 281. [2020-11-06 22:34:11,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 281 states. [2020-11-06 22:34:11,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 281 states to 281 states and 403 transitions. [2020-11-06 22:34:11,040 INFO L78 Accepts]: Start accepts. Automaton has 281 states and 403 transitions. Word has length 92 [2020-11-06 22:34:11,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:11,041 INFO L481 AbstractCegarLoop]: Abstraction has 281 states and 403 transitions. [2020-11-06 22:34:11,041 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-06 22:34:11,042 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states and 403 transitions. [2020-11-06 22:34:11,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2020-11-06 22:34:11,047 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:11,048 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-06 22:34:11,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 22:34:11,048 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:11,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:11,049 INFO L82 PathProgramCache]: Analyzing trace with hash -840609797, now seen corresponding path program 1 times [2020-11-06 22:34:11,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:11,050 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038486324] [2020-11-06 22:34:11,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:11,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:11,358 WARN L194 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:11,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:11,416 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:11,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:11,464 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:34:11,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038486324] [2020-11-06 22:34:11,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:34:11,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:34:11,465 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052668090] [2020-11-06 22:34:11,467 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:34:11,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:11,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:34:11,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:34:11,469 INFO L87 Difference]: Start difference. First operand 281 states and 403 transitions. Second operand 8 states. [2020-11-06 22:34:11,722 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:14,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:14,358 INFO L93 Difference]: Finished difference Result 715 states and 1051 transitions. [2020-11-06 22:34:14,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-06 22:34:14,360 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 102 [2020-11-06 22:34:14,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:14,367 INFO L225 Difference]: With dead ends: 715 [2020-11-06 22:34:14,367 INFO L226 Difference]: Without dead ends: 440 [2020-11-06 22:34:14,369 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:34:14,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2020-11-06 22:34:14,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 422. [2020-11-06 22:34:14,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-11-06 22:34:14,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 591 transitions. [2020-11-06 22:34:14,416 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 591 transitions. Word has length 102 [2020-11-06 22:34:14,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:14,416 INFO L481 AbstractCegarLoop]: Abstraction has 422 states and 591 transitions. [2020-11-06 22:34:14,416 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:34:14,416 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 591 transitions. [2020-11-06 22:34:14,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-11-06 22:34:14,422 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:14,423 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:14,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 22:34:14,423 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:14,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:14,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1561353346, now seen corresponding path program 1 times [2020-11-06 22:34:14,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:14,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [797632257] [2020-11-06 22:34:14,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:14,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:14,675 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:14,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:14,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:14,730 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:14,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:14,757 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-11-06 22:34:14,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [797632257] [2020-11-06 22:34:14,757 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1243528205] [2020-11-06 22:34:14,758 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 [2020-11-06 22:34:14,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:14,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-06 22:34:14,974 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:15,057 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:34:15,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:34:15,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2020-11-06 22:34:15,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524313718] [2020-11-06 22:34:15,059 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:34:15,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:15,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:34:15,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:34:15,060 INFO L87 Difference]: Start difference. First operand 422 states and 591 transitions. Second operand 3 states. [2020-11-06 22:34:16,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:16,193 INFO L93 Difference]: Finished difference Result 1249 states and 1791 transitions. [2020-11-06 22:34:16,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:34:16,194 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2020-11-06 22:34:16,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:16,211 INFO L225 Difference]: With dead ends: 1249 [2020-11-06 22:34:16,212 INFO L226 Difference]: Without dead ends: 833 [2020-11-06 22:34:16,215 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-06 22:34:16,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 833 states. [2020-11-06 22:34:16,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 833 to 833. [2020-11-06 22:34:16,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 833 states. [2020-11-06 22:34:16,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 833 states to 833 states and 1103 transitions. [2020-11-06 22:34:16,298 INFO L78 Accepts]: Start accepts. Automaton has 833 states and 1103 transitions. Word has length 103 [2020-11-06 22:34:16,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:16,299 INFO L481 AbstractCegarLoop]: Abstraction has 833 states and 1103 transitions. [2020-11-06 22:34:16,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:34:16,299 INFO L276 IsEmpty]: Start isEmpty. Operand 833 states and 1103 transitions. [2020-11-06 22:34:16,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2020-11-06 22:34:16,315 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:16,315 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:16,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 22:34:16,529 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:16,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:16,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1324559575, now seen corresponding path program 1 times [2020-11-06 22:34:16,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:16,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602256859] [2020-11-06 22:34:16,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:16,856 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:16,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:16,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:16,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:16,972 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:34:16,973 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602256859] [2020-11-06 22:34:16,973 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:34:16,973 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 22:34:16,973 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074016294] [2020-11-06 22:34:16,974 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-06 22:34:16,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:16,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-06 22:34:16,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-06 22:34:16,975 INFO L87 Difference]: Start difference. First operand 833 states and 1103 transitions. Second operand 8 states. [2020-11-06 22:34:17,222 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:34:18,541 WARN L194 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-06 22:34:19,416 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:34:20,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:20,572 INFO L93 Difference]: Finished difference Result 2246 states and 3155 transitions. [2020-11-06 22:34:20,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-11-06 22:34:20,573 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 104 [2020-11-06 22:34:20,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:20,582 INFO L225 Difference]: With dead ends: 2246 [2020-11-06 22:34:20,582 INFO L226 Difference]: Without dead ends: 1419 [2020-11-06 22:34:20,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-06 22:34:20,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1419 states. [2020-11-06 22:34:20,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1419 to 1127. [2020-11-06 22:34:20,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1127 states. [2020-11-06 22:34:20,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1127 states to 1127 states and 1464 transitions. [2020-11-06 22:34:20,643 INFO L78 Accepts]: Start accepts. Automaton has 1127 states and 1464 transitions. Word has length 104 [2020-11-06 22:34:20,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:20,643 INFO L481 AbstractCegarLoop]: Abstraction has 1127 states and 1464 transitions. [2020-11-06 22:34:20,643 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-06 22:34:20,643 INFO L276 IsEmpty]: Start isEmpty. Operand 1127 states and 1464 transitions. [2020-11-06 22:34:20,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2020-11-06 22:34:20,646 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:20,646 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-11-06 22:34:20,647 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-06 22:34:20,647 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:20,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:20,647 INFO L82 PathProgramCache]: Analyzing trace with hash -1822207020, now seen corresponding path program 1 times [2020-11-06 22:34:20,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:20,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250420767] [2020-11-06 22:34:20,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:20,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:20,920 WARN L194 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:20,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:20,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:20,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:20,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:20,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:34:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:34:21,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250420767] [2020-11-06 22:34:21,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226149235] [2020-11-06 22:34:21,082 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 [2020-11-06 22:34:21,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:21,347 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 7 conjunts are in the unsatisfiable core [2020-11-06 22:34:21,360 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:21,444 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-06 22:34:21,445 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:34:21,445 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:34:21,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271008100] [2020-11-06 22:34:21,446 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:34:21,447 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:21,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:34:21,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:34:21,448 INFO L87 Difference]: Start difference. First operand 1127 states and 1464 transitions. Second operand 3 states. [2020-11-06 22:34:22,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:22,423 INFO L93 Difference]: Finished difference Result 3070 states and 4103 transitions. [2020-11-06 22:34:22,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:34:22,424 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 115 [2020-11-06 22:34:22,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:22,443 INFO L225 Difference]: With dead ends: 3070 [2020-11-06 22:34:22,444 INFO L226 Difference]: Without dead ends: 1949 [2020-11-06 22:34:22,448 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:34:22,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1949 states. [2020-11-06 22:34:22,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1949 to 1675. [2020-11-06 22:34:22,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1675 states. [2020-11-06 22:34:22,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1675 states to 1675 states and 2210 transitions. [2020-11-06 22:34:22,535 INFO L78 Accepts]: Start accepts. Automaton has 1675 states and 2210 transitions. Word has length 115 [2020-11-06 22:34:22,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:22,545 INFO L481 AbstractCegarLoop]: Abstraction has 1675 states and 2210 transitions. [2020-11-06 22:34:22,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:34:22,545 INFO L276 IsEmpty]: Start isEmpty. Operand 1675 states and 2210 transitions. [2020-11-06 22:34:22,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2020-11-06 22:34:22,552 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:22,552 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:22,765 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:22,766 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:22,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:22,767 INFO L82 PathProgramCache]: Analyzing trace with hash 1857634098, now seen corresponding path program 1 times [2020-11-06 22:34:22,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:22,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181363001] [2020-11-06 22:34:22,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:22,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:22,973 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:22,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:22,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:23,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:23,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:23,165 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:34:23,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181363001] [2020-11-06 22:34:23,167 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 22:34:23,167 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-06 22:34:23,168 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953335282] [2020-11-06 22:34:23,169 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 22:34:23,169 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:23,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 22:34:23,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-06 22:34:23,171 INFO L87 Difference]: Start difference. First operand 1675 states and 2210 transitions. Second operand 7 states. [2020-11-06 22:34:23,375 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-06 22:34:24,700 WARN L194 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-06 22:34:25,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:25,778 INFO L93 Difference]: Finished difference Result 3805 states and 5168 transitions. [2020-11-06 22:34:25,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-06 22:34:25,779 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2020-11-06 22:34:25,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:25,794 INFO L225 Difference]: With dead ends: 3805 [2020-11-06 22:34:25,794 INFO L226 Difference]: Without dead ends: 2136 [2020-11-06 22:34:25,799 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:34:25,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2136 states. [2020-11-06 22:34:25,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2136 to 1981. [2020-11-06 22:34:25,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1981 states. [2020-11-06 22:34:25,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1981 states to 1981 states and 2632 transitions. [2020-11-06 22:34:25,875 INFO L78 Accepts]: Start accepts. Automaton has 1981 states and 2632 transitions. Word has length 125 [2020-11-06 22:34:25,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:25,876 INFO L481 AbstractCegarLoop]: Abstraction has 1981 states and 2632 transitions. [2020-11-06 22:34:25,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 22:34:25,876 INFO L276 IsEmpty]: Start isEmpty. Operand 1981 states and 2632 transitions. [2020-11-06 22:34:25,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2020-11-06 22:34:25,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:25,881 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:25,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-06 22:34:25,882 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:25,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:25,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2115217196, now seen corresponding path program 1 times [2020-11-06 22:34:25,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:25,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607189941] [2020-11-06 22:34:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:25,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:26,126 WARN L194 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:26,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:26,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:26,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:26,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:26,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:34:26,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 36 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:34:26,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607189941] [2020-11-06 22:34:26,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310695426] [2020-11-06 22:34:26,473 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 [2020-11-06 22:34:26,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:26,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 482 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:34:26,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:26,795 INFO L134 CoverageAnalysis]: Checked inductivity of 43 backedges. 38 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-11-06 22:34:26,795 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:34:26,796 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [10] total 12 [2020-11-06 22:34:26,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842295460] [2020-11-06 22:34:26,802 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:34:26,802 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:26,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:34:26,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:34:26,803 INFO L87 Difference]: Start difference. First operand 1981 states and 2632 transitions. Second operand 3 states. [2020-11-06 22:34:27,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:27,920 INFO L93 Difference]: Finished difference Result 4633 states and 6235 transitions. [2020-11-06 22:34:27,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:34:27,924 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 133 [2020-11-06 22:34:27,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:27,938 INFO L225 Difference]: With dead ends: 4633 [2020-11-06 22:34:27,938 INFO L226 Difference]: Without dead ends: 2658 [2020-11-06 22:34:27,943 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 135 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-11-06 22:34:27,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2658 states. [2020-11-06 22:34:28,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2658 to 2523. [2020-11-06 22:34:28,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2523 states. [2020-11-06 22:34:28,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2523 states to 2523 states and 3260 transitions. [2020-11-06 22:34:28,027 INFO L78 Accepts]: Start accepts. Automaton has 2523 states and 3260 transitions. Word has length 133 [2020-11-06 22:34:28,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:28,027 INFO L481 AbstractCegarLoop]: Abstraction has 2523 states and 3260 transitions. [2020-11-06 22:34:28,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:34:28,028 INFO L276 IsEmpty]: Start isEmpty. Operand 2523 states and 3260 transitions. [2020-11-06 22:34:28,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-11-06 22:34:28,034 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:28,035 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:28,248 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:28,249 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:28,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:28,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1380587169, now seen corresponding path program 1 times [2020-11-06 22:34:28,250 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:28,250 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870221763] [2020-11-06 22:34:28,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:28,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:28,493 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:28,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:28,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:28,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:28,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:28,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:34:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:28,618 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 22:34:28,618 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870221763] [2020-11-06 22:34:28,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843619914] [2020-11-06 22:34:28,619 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 [2020-11-06 22:34:28,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:28,830 INFO L263 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:34:28,834 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:28,938 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 22:34:28,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:34:28,940 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:34:28,941 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121290898] [2020-11-06 22:34:28,941 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:34:28,942 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:28,942 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:34:28,943 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:34:28,943 INFO L87 Difference]: Start difference. First operand 2523 states and 3260 transitions. Second operand 10 states. [2020-11-06 22:34:29,390 WARN L194 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:31,088 WARN L194 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:32,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:32,475 INFO L93 Difference]: Finished difference Result 5755 states and 7376 transitions. [2020-11-06 22:34:32,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-06 22:34:32,476 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 146 [2020-11-06 22:34:32,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:32,493 INFO L225 Difference]: With dead ends: 5755 [2020-11-06 22:34:32,493 INFO L226 Difference]: Without dead ends: 3095 [2020-11-06 22:34:32,500 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 151 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2020-11-06 22:34:32,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3095 states. [2020-11-06 22:34:32,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3095 to 2952. [2020-11-06 22:34:32,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2952 states. [2020-11-06 22:34:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 3615 transitions. [2020-11-06 22:34:32,600 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 3615 transitions. Word has length 146 [2020-11-06 22:34:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:32,600 INFO L481 AbstractCegarLoop]: Abstraction has 2952 states and 3615 transitions. [2020-11-06 22:34:32,600 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:34:32,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 3615 transitions. [2020-11-06 22:34:32,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-11-06 22:34:32,608 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:32,609 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:32,823 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:32,824 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:32,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:32,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1839636314, now seen corresponding path program 1 times [2020-11-06 22:34:32,825 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:32,825 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [558499095] [2020-11-06 22:34:32,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:33,058 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:33,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:33,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:33,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:33,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:33,132 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:34:33,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:33,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-11-06 22:34:33,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:33,290 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 72 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-06 22:34:33,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [558499095] [2020-11-06 22:34:33,291 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476793831] [2020-11-06 22:34:33,291 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 [2020-11-06 22:34:33,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:33,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:34:33,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:33,640 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-11-06 22:34:33,640 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-11-06 22:34:33,640 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2020-11-06 22:34:33,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005145424] [2020-11-06 22:34:33,641 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-06 22:34:33,641 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:33,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-06 22:34:33,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:34:33,642 INFO L87 Difference]: Start difference. First operand 2952 states and 3615 transitions. Second operand 3 states. [2020-11-06 22:34:34,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:34,666 INFO L93 Difference]: Finished difference Result 6174 states and 7642 transitions. [2020-11-06 22:34:34,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-06 22:34:34,672 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 161 [2020-11-06 22:34:34,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:34,688 INFO L225 Difference]: With dead ends: 6174 [2020-11-06 22:34:34,688 INFO L226 Difference]: Without dead ends: 3363 [2020-11-06 22:34:34,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 174 GetRequests, 167 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-06 22:34:34,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3363 states. [2020-11-06 22:34:34,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3363 to 2688. [2020-11-06 22:34:34,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2688 states. [2020-11-06 22:34:34,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2688 states to 2688 states and 3248 transitions. [2020-11-06 22:34:34,815 INFO L78 Accepts]: Start accepts. Automaton has 2688 states and 3248 transitions. Word has length 161 [2020-11-06 22:34:34,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:34,815 INFO L481 AbstractCegarLoop]: Abstraction has 2688 states and 3248 transitions. [2020-11-06 22:34:34,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-06 22:34:34,816 INFO L276 IsEmpty]: Start isEmpty. Operand 2688 states and 3248 transitions. [2020-11-06 22:34:34,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-11-06 22:34:34,823 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:34,823 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:35,036 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:35,037 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:35,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:35,038 INFO L82 PathProgramCache]: Analyzing trace with hash 654861471, now seen corresponding path program 1 times [2020-11-06 22:34:35,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:35,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167272899] [2020-11-06 22:34:35,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:35,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:35,253 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:35,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:35,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:35,294 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:35,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:35,301 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-11-06 22:34:35,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:35,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2020-11-06 22:34:35,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:35,403 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 79 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-06 22:34:35,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167272899] [2020-11-06 22:34:35,404 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2133989414] [2020-11-06 22:34:35,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:35,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:35,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 4 conjunts are in the unsatisfiable core [2020-11-06 22:34:35,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:35,759 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 90 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-11-06 22:34:35,759 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:34:35,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-11-06 22:34:35,761 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487012437] [2020-11-06 22:34:35,763 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-06 22:34:35,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:35,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-06 22:34:35,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-06 22:34:35,764 INFO L87 Difference]: Start difference. First operand 2688 states and 3248 transitions. Second operand 10 states. [2020-11-06 22:34:36,002 WARN L194 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:36,777 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:34:38,361 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:34:39,366 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:41,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:41,990 INFO L93 Difference]: Finished difference Result 5446 states and 6783 transitions. [2020-11-06 22:34:41,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-11-06 22:34:41,992 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 170 [2020-11-06 22:34:41,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:42,005 INFO L225 Difference]: With dead ends: 5446 [2020-11-06 22:34:42,005 INFO L226 Difference]: Without dead ends: 2899 [2020-11-06 22:34:42,031 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=169, Invalid=643, Unknown=0, NotChecked=0, Total=812 [2020-11-06 22:34:42,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2899 states. [2020-11-06 22:34:42,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2899 to 2690. [2020-11-06 22:34:42,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2690 states. [2020-11-06 22:34:42,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2690 states to 2690 states and 3118 transitions. [2020-11-06 22:34:42,117 INFO L78 Accepts]: Start accepts. Automaton has 2690 states and 3118 transitions. Word has length 170 [2020-11-06 22:34:42,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:42,118 INFO L481 AbstractCegarLoop]: Abstraction has 2690 states and 3118 transitions. [2020-11-06 22:34:42,118 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-06 22:34:42,118 INFO L276 IsEmpty]: Start isEmpty. Operand 2690 states and 3118 transitions. [2020-11-06 22:34:42,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-11-06 22:34:42,126 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 22:34:42,126 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 22:34:42,341 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:42,342 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 22:34:42,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 22:34:42,342 INFO L82 PathProgramCache]: Analyzing trace with hash 1096003939, now seen corresponding path program 1 times [2020-11-06 22:34:42,342 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 22:34:42,342 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451598084] [2020-11-06 22:34:42,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 22:34:42,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:42,736 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:34:42,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 22:34:42,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:42,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 22:34:42,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:42,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-11-06 22:34:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:42,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2020-11-06 22:34:42,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:43,186 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 106 proven. 21 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-06 22:34:43,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451598084] [2020-11-06 22:34:43,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [425499419] [2020-11-06 22:34:43,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:43,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 22:34:43,422 INFO L263 TraceCheckSpWp]: Trace formula consists of 608 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-06 22:34:43,426 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 22:34:43,533 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 110 proven. 54 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2020-11-06 22:34:43,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 22:34:43,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4] total 13 [2020-11-06 22:34:43,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682902666] [2020-11-06 22:34:43,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-06 22:34:43,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 22:34:43,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-06 22:34:43,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-06 22:34:43,535 INFO L87 Difference]: Start difference. First operand 2690 states and 3118 transitions. Second operand 13 states. [2020-11-06 22:34:43,774 WARN L194 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-06 22:34:44,459 WARN L194 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-06 22:34:45,245 WARN L194 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-06 22:34:46,273 WARN L194 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-11-06 22:34:47,151 WARN L194 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-11-06 22:34:47,673 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-06 22:34:48,997 WARN L194 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-11-06 22:34:53,492 WARN L194 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-11-06 22:34:55,822 WARN L194 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-11-06 22:34:57,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 22:34:57,204 INFO L93 Difference]: Finished difference Result 6463 states and 7722 transitions. [2020-11-06 22:34:57,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-06 22:34:57,205 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 208 [2020-11-06 22:34:57,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 22:34:57,206 INFO L225 Difference]: With dead ends: 6463 [2020-11-06 22:34:57,207 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 22:34:57,221 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 285 GetRequests, 243 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 530 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=514, Invalid=1378, Unknown=0, NotChecked=0, Total=1892 [2020-11-06 22:34:57,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 22:34:57,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 22:34:57,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 22:34:57,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 22:34:57,223 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 208 [2020-11-06 22:34:57,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 22:34:57,223 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 22:34:57,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-06 22:34:57,224 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 22:34:57,224 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 22:34:57,437 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 22:34:57,441 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 22:34:58,749 WARN L194 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 178 [2020-11-06 22:34:59,063 WARN L194 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 178 [2020-11-06 22:34:59,465 WARN L194 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 42 [2020-11-06 22:35:04,572 WARN L194 SmtUtils]: Spent 5.09 s on a formula simplification. DAG size of input: 225 DAG size of output: 94 [2020-11-06 22:35:07,047 WARN L194 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 155 DAG size of output: 73 [2020-11-06 22:35:07,219 WARN L194 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-06 22:35:09,739 WARN L194 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 155 DAG size of output: 73 [2020-11-06 22:35:11,409 WARN L194 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 114 DAG size of output: 67 [2020-11-06 22:35:11,414 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-11-06 22:35:11,415 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-11-06 22:35:11,415 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-11-06 22:35:11,415 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-11-06 22:35:11,415 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:35:11,416 INFO L262 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= ~a21~0 |old(~a21~0)|) (= |#t~string6.base| |old(#t~string6.base)|) (= ~a8~0 |old(~a8~0)|) (= ~f~0 |old(~f~0)|) (= |old(#valid)| |#valid|) (= |#t~string5.base| |old(#t~string5.base)|) (= ~a7~0 |old(~a7~0)|) (= ~w~0 |old(~w~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~a16~0 |old(~a16~0)|) (= |#NULL.base| |old(#NULL.base)|) (= ~y~0 |old(~y~0)|) (= |#t~string7.base| |old(#t~string7.base)|) (= ~a17~0 |old(~a17~0)|) (= ~c~0 |old(~c~0)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= ~z~0 |old(~z~0)|) (= ~a12~0 |old(~a12~0)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= ~a~0 |old(~a~0)|) (= ~a20~0 |old(~a20~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= |#NULL.offset| |old(#NULL.offset)|) (= ~v~0 |old(~v~0)|) (= ~b~0 |old(~b~0)|)) [2020-11-06 22:35:11,416 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:35:11,416 INFO L266 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,416 INFO L266 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,417 INFO L266 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,417 INFO L266 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,417 INFO L266 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,417 INFO L266 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,417 INFO L266 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-11-06 22:35:11,418 INFO L266 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-11-06 22:35:11,418 INFO L266 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-11-06 22:35:11,418 INFO L266 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-11-06 22:35:11,418 INFO L266 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-11-06 22:35:11,418 INFO L262 CegarLoopResult]: At program point L433(line 433) the Hoare annotation is: (let ((.cse12 (= |old(~a20~0)| 1))) (let ((.cse11 (not (<= 5 |old(~a16~0)|))) (.cse0 (not (<= |old(~a16~0)| 5))) (.cse1 (not (= |old(~a7~0)| 1))) (.cse4 (not (<= |old(~a17~0)| 0))) (.cse7 (not (<= 6 |old(~a16~0)|))) (.cse13 (not (= 0 |old(~a17~0)|))) (.cse14 (not (<= 15 |old(~a8~0)|))) (.cse2 (not (= 4 |old(~a16~0)|))) (.cse8 (not (= |old(~a17~0)| 1))) (.cse3 (not (<= 14 |old(~a8~0)|))) (.cse6 (not .cse12)) (.cse5 (not (= |old(~a21~0)| 1))) (.cse9 (not (= ~a12~0 8))) (.cse10 (not (= |old(~a7~0)| 0)))) (and (or .cse0 .cse1 .cse2) (or .cse3 .cse0 .cse1 .cse4 .cse5) (or .cse1 .cse6 .cse4 .cse7) (or .cse8 .cse6 .cse7 .cse5 .cse9 .cse10) (or .cse11 .cse12 .cse3 .cse0 .cse5 .cse9 .cse10 .cse13) (or .cse11 .cse14 .cse6 .cse4 .cse5 .cse9 .cse10) (or (not (= |old(~a8~0)| 13)) .cse5 .cse9 .cse10 .cse2 .cse13) (or .cse8 .cse0 .cse1 .cse6) (or .cse3 .cse5 .cse9 .cse2 .cse10 .cse13) (or .cse6 .cse4 .cse5 .cse2 .cse9 .cse10) (or .cse14 .cse7 .cse5 .cse9 .cse10 .cse13) (or .cse8 .cse14 .cse5 .cse9 .cse10) (or .cse8 .cse6 .cse2) (or .cse8 .cse3 .cse6 .cse5 .cse9 .cse10)))) [2020-11-06 22:35:11,418 INFO L266 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L433-1(line 433) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,419 INFO L266 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-11-06 22:35:11,420 INFO L266 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,421 INFO L266 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-11-06 22:35:11,422 INFO L266 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-11-06 22:35:11,423 INFO L266 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-11-06 22:35:11,424 INFO L266 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,425 INFO L266 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-11-06 22:35:11,426 INFO L266 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,427 INFO L266 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-11-06 22:35:11,428 INFO L266 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,429 INFO L266 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-11-06 22:35:11,430 INFO L266 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,431 INFO L266 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-11-06 22:35:11,432 INFO L266 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-11-06 22:35:11,433 INFO L266 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,433 INFO L266 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,433 INFO L262 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse24 (= |old(~a20~0)| 1)) (.cse5 (= ~a7~0 |old(~a7~0)|)) (.cse6 (= ~a21~0 |old(~a21~0)|)) (.cse8 (= ~a16~0 |old(~a16~0)|)) (.cse19 (= ~a17~0 |old(~a17~0)|)) (.cse25 (= ~a21~0 1)) (.cse7 (= ~a20~0 |old(~a20~0)|)) (.cse9 (= ~a8~0 |old(~a8~0)|)) (.cse26 (= ~a16~0 4)) (.cse27 (= ~a7~0 0))) (let ((.cse11 (not (<= 14 |old(~a8~0)|))) (.cse23 (not (<= 5 |old(~a16~0)|))) (.cse3 (not (<= |old(~a17~0)| 0))) (.cse20 (and .cse19 .cse25 .cse7 .cse9 .cse26 .cse27)) (.cse16 (not (<= |old(~a16~0)| 5))) (.cse0 (not (= |old(~a7~0)| 1))) (.cse2 (and .cse5 .cse19 .cse6 .cse7 .cse8 .cse9)) (.cse10 (not (= |old(~a17~0)| 1))) (.cse1 (not .cse24)) (.cse17 (and .cse5 .cse19 .cse6 .cse7 .cse9 .cse26)) (.cse18 (not (= 4 |old(~a16~0)|))) (.cse15 (and .cse19 .cse25 .cse7 .cse8 .cse9 .cse27)) (.cse22 (not (<= 15 |old(~a8~0)|))) (.cse4 (not (<= 6 |old(~a16~0)|))) (.cse12 (not (= |old(~a21~0)| 1))) (.cse13 (not (= ~a12~0 8))) (.cse14 (not (= |old(~a7~0)| 0))) (.cse21 (not (= 0 |old(~a17~0)|)))) (and (or .cse0 .cse1 .cse2 .cse3 .cse4) (or (and .cse5 .cse6 .cse7 .cse8 .cse9 (= ~a17~0 1)) .cse10 .cse11 .cse1 .cse12 .cse13 .cse14) (or .cse10 .cse15 .cse1 .cse4 .cse12 .cse13 .cse14) (or .cse16 .cse0 .cse17 .cse18) (or .cse11 .cse16 .cse0 (and .cse19 .cse5 .cse6 .cse7 .cse8 .cse9) .cse3 .cse12) (or .cse11 .cse12 .cse20 .cse13 .cse18 .cse14 .cse21) (or .cse10 .cse15 .cse22 .cse12 .cse13 .cse14) (or .cse23 .cse24 .cse11 .cse15 .cse16 .cse12 .cse13 .cse14 .cse21) (or .cse23 .cse15 .cse22 .cse1 .cse3 .cse12 .cse13 .cse14) (or .cse1 .cse3 .cse12 .cse18 .cse20 .cse13 .cse14) (or .cse10 .cse16 .cse0 .cse1 .cse2) (or (not (= |old(~a8~0)| 13)) (and .cse19 .cse25 .cse7 (= ~a8~0 13) .cse26 .cse27) .cse12 .cse13 .cse14 .cse18 .cse21) (or .cse10 .cse1 .cse17 .cse18) (or .cse15 .cse22 .cse4 .cse12 .cse13 .cse14 .cse21)))) [2020-11-06 22:35:11,433 INFO L266 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-11-06 22:35:11,434 INFO L266 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,435 INFO L266 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-11-06 22:35:11,436 INFO L266 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,437 INFO L266 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-11-06 22:35:11,438 INFO L266 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 22:35:11,439 INFO L262 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a12~0 8) (= ~a20~0 1) (<= 5 ~a16~0) (= ~a7~0 0) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-11-06 22:35:11,440 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 22:35:11,440 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 22:35:11,440 INFO L262 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= 5 |old(~a16~0)|)) (and (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) (= ~a7~0 0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (not (= |old(~a21~0)| 1)) (not (= ~a12~0 8)) (not (= |old(~a7~0)| 0))) [2020-11-06 22:35:11,440 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:35:11,440 INFO L262 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse5 (= ~a20~0 1))) (let ((.cse8 (<= 5 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse12 (not .cse5)) (.cse9 (<= 15 ~a8~0)) (.cse13 (<= 6 ~a16~0)) (.cse3 (<= ~a16~0 5)) (.cse11 (= ~a17~0 1)) (.cse0 (<= 14 ~a8~0)) (.cse2 (= ~a21~0 1)) (.cse7 (= ~a7~0 0)) (.cse10 (= ~a17~0 0)) (.cse1 (= ~a7~0 1)) (.cse6 (= ~a16~0 4))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse8 .cse9 .cse7 .cse10) (and .cse5 .cse6 .cse11) (not (= |old(~a20~0)| 1)) (and .cse2 .cse4 .cse5 .cse8 .cse9 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 .cse3 .cse8 .cse12 .cse7 .cse10) (and .cse2 (= ~a8~0 13) .cse6 .cse7 .cse10) (and .cse13 .cse1 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse2 .cse12 .cse9 .cse11 .cse7) (and .cse13 .cse2 .cse5 .cse11 .cse7) (and .cse1 .cse3 .cse5 .cse11) (and (= ~a17~0 |old(~a17~0)|) .cse2 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse7) (and .cse0 .cse2 .cse6 .cse7 .cse10) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse1 .cse6)))) [2020-11-06 22:35:11,441 INFO L266 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-11-06 22:35:11,441 INFO L266 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-11-06 22:35:11,441 INFO L262 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse5 (= ~a20~0 1))) (let ((.cse8 (<= 5 ~a16~0)) (.cse4 (<= ~a17~0 0)) (.cse12 (not .cse5)) (.cse9 (<= 15 ~a8~0)) (.cse13 (<= 6 ~a16~0)) (.cse3 (<= ~a16~0 5)) (.cse11 (= ~a17~0 1)) (.cse0 (<= 14 ~a8~0)) (.cse2 (= ~a21~0 1)) (.cse7 (= ~a7~0 0)) (.cse10 (= ~a17~0 0)) (.cse1 (= ~a7~0 1)) (.cse6 (= ~a16~0 4))) (or (not (<= 5 |old(~a16~0)|)) (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse2 .cse4 .cse5 .cse6 .cse7) (and .cse2 .cse8 .cse9 .cse7 .cse10) (and .cse5 .cse6 .cse11) (not (= |old(~a20~0)| 1)) (and .cse2 .cse4 .cse5 .cse8 .cse9 .cse7) (not (= |old(~a21~0)| 1)) (and .cse0 .cse2 .cse3 .cse8 .cse12 .cse7 .cse10) (and .cse2 (= ~a8~0 13) .cse6 .cse7 .cse10) (and .cse13 .cse1 .cse4 .cse5) (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (and .cse2 .cse12 .cse9 .cse11 .cse7) (and .cse13 .cse2 .cse5 .cse11 .cse7) (and .cse1 .cse3 .cse5 .cse11) (and (= ~a17~0 |old(~a17~0)|) .cse2 (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|) .cse7) (and .cse0 .cse2 .cse6 .cse7 .cse10) (not (= |old(~a7~0)| 0)) (not (= ~a12~0 8)) (and .cse1 .cse6)))) [2020-11-06 22:35:11,441 INFO L266 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-11-06 22:35:11,466 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 10:35:11 BoogieIcfgContainer [2020-11-06 22:35:11,466 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 22:35:11,468 INFO L168 Benchmark]: Toolchain (without parser) took 66433.03 ms. Allocated memory was 160.4 MB in the beginning and 486.5 MB in the end (delta: 326.1 MB). Free memory was 133.5 MB in the beginning and 245.1 MB in the end (delta: -111.6 MB). Peak memory consumption was 292.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:35:11,469 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 160.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 22:35:11,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 746.40 ms. Allocated memory is still 160.4 MB. Free memory was 132.9 MB in the beginning and 139.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:35:11,470 INFO L168 Benchmark]: Boogie Preprocessor took 113.83 ms. Allocated memory is still 160.4 MB. Free memory was 139.8 MB in the beginning and 134.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. [2020-11-06 22:35:11,471 INFO L168 Benchmark]: RCFGBuilder took 1602.20 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 134.9 MB in the beginning and 151.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 86.5 MB. Max. memory is 8.0 GB. [2020-11-06 22:35:11,471 INFO L168 Benchmark]: TraceAbstraction took 63956.59 ms. Allocated memory was 192.9 MB in the beginning and 486.5 MB in the end (delta: 293.6 MB). Free memory was 150.6 MB in the beginning and 245.1 MB in the end (delta: -94.5 MB). Peak memory consumption was 276.7 MB. Max. memory is 8.0 GB. [2020-11-06 22:35:11,474 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 160.4 MB. Free memory is still 132.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 746.40 ms. Allocated memory is still 160.4 MB. Free memory was 132.9 MB in the beginning and 139.8 MB in the end (delta: -6.9 MB). Peak memory consumption was 30.2 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 113.83 ms. Allocated memory is still 160.4 MB. Free memory was 139.8 MB in the beginning and 134.9 MB in the end (delta: 4.9 MB). Peak memory consumption was 5.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1602.20 ms. Allocated memory was 160.4 MB in the beginning and 192.9 MB in the end (delta: 32.5 MB). Free memory was 134.9 MB in the beginning and 151.1 MB in the end (delta: -16.3 MB). Peak memory consumption was 86.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 63956.59 ms. Allocated memory was 192.9 MB in the beginning and 486.5 MB in the end (delta: 293.6 MB). Free memory was 150.6 MB in the beginning and 245.1 MB in the end (delta: -94.5 MB). Peak memory consumption was 276.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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: 585]: Loop Invariant Derived loop invariant: ((((((((((((((((((((!(5 <= \old(a16)) || ((((14 <= a8 && a7 == 1) && a21 == 1) && a16 <= 5) && a17 <= 0)) || ((((a21 == 1 && a17 <= 0) && a20 == 1) && a16 == 4) && a7 == 0)) || ((((a21 == 1 && 5 <= a16) && 15 <= a8) && a7 == 0) && a17 == 0)) || ((a20 == 1 && a16 == 4) && a17 == 1)) || !(\old(a20) == 1)) || (((((a21 == 1 && a17 <= 0) && a20 == 1) && 5 <= a16) && 15 <= a8) && a7 == 0)) || !(\old(a21) == 1)) || ((((((14 <= a8 && a21 == 1) && a16 <= 5) && 5 <= a16) && !(a20 == 1)) && a7 == 0) && a17 == 0)) || ((((a21 == 1 && a8 == 13) && a16 == 4) && a7 == 0) && a17 == 0)) || (((6 <= a16 && a7 == 1) && a17 <= 0) && a20 == 1)) || !(\old(a17) == 1)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || ((((a21 == 1 && !(a20 == 1)) && 15 <= a8) && a17 == 1) && a7 == 0)) || ((((6 <= a16 && a21 == 1) && a20 == 1) && a17 == 1) && a7 == 0)) || (((a7 == 1 && a16 <= 5) && a20 == 1) && a17 == 1)) || ((((a17 == \old(a17) && a21 == 1) && a16 == \old(a16)) && a8 == \old(a8)) && a7 == 0)) || ((((14 <= a8 && a21 == 1) && a16 == 4) && a7 == 0) && a17 == 0)) || !(\old(a7) == 0)) || !(a12 == 8)) || (a7 == 1 && a16 == 4) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 49.8s, OverallIterations: 11, TraceHistogramMax: 4, AutomataDifference: 39.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 13.9s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 598 SDtfs, 5085 SDslu, 549 SDs, 0 SdLazy, 10986 SolverSat, 1804 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 23.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1275 GetRequests, 1122 SyntacticMatches, 2 SemanticMatches, 151 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 814 ImplicationChecksByTransitivity, 11.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2952occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 11 MinimizatonAttempts, 1907 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 343 PreInvPairs, 429 NumberOfFragments, 1555 HoareAnnotationTreeSize, 343 FomulaSimplifications, 168924 FormulaSimplificationTreeSizeReduction, 1.7s HoareSimplificationTime, 9 FomulaSimplificationsInter, 8670 FormulaSimplificationTreeSizeReductionInter, 12.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2495 NumberOfCodeBlocks, 2495 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 2477 ConstructedInterpolants, 0 QuantifiedInterpolants, 1438093 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3623 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 18 InterpolantComputations, 8 PerfectInterpolantSequences, 946/1058 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...