/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_label46.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:31:50,176 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:31:50,179 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:31:50,217 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:31:50,248 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 18:31:50,255 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 18:31:50,257 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 18:31:50,260 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 18:31:50,264 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 18:31:50,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 18:31:50,281 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 18:31:50,284 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 18:31:50,291 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 18:31:50,293 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 18:31:50,295 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 18:31:50,297 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 18:31:50,300 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 18:31:50,317 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:31:50,318 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:31:50,318 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:31:50,320 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 [2020-10-23 18:31:50,385 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:31:50,385 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:31:50,391 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:31:50,391 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:31:50,392 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:31:50,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:31:50,392 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:31:50,392 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:31:50,392 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:31:50,393 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:31:50,394 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:31:50,394 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:31:50,394 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:31:50,394 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:31:50,395 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:31:50,395 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:31:50,395 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:31:50,395 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:31:50,396 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:31:50,396 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:31:50,396 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:31:50,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:31:50,397 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:31:50,397 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:31:50,397 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:31:50,397 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:31:50,397 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:31:50,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:31:50,398 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:31:50,398 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:31:50,895 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:31:50,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:31:50,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:31:50,936 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:31:50,937 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:31:50,938 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-10-23 18:31:51,029 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9484fed/c3f7f9b4a73e4731853f20e7914ea07f/FLAGd6e39a3f4 [2020-10-23 18:31:52,005 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:31:52,006 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label46.c [2020-10-23 18:31:52,024 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9484fed/c3f7f9b4a73e4731853f20e7914ea07f/FLAGd6e39a3f4 [2020-10-23 18:31:52,164 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d9484fed/c3f7f9b4a73e4731853f20e7914ea07f [2020-10-23 18:31:52,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:31:52,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:31:52,180 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:31:52,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:31:52,187 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:31:52,188 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:31:52" (1/1) ... [2020-10-23 18:31:52,194 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6e3e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:52, skipping insertion in model container [2020-10-23 18:31:52,195 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:31:52" (1/1) ... [2020-10-23 18:31:52,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:31:52,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:31:52,747 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:31:52,760 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:31:53,015 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:31:53,034 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:31:53,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53 WrapperNode [2020-10-23 18:31:53,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:31:53,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:31:53,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:31:53,037 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:31:53,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,076 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,132 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,159 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (1/1) ... [2020-10-23 18:31:53,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:31:53,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:31:53,185 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:31:53,185 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:31:53,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (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 [2020-10-23 18:31:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:31:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:31:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:31:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-23 18:31:53,286 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:31:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-23 18:31:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:31:53,288 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:31:53,289 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:31:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:31:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:31:53,290 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-23 18:31:53,291 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:31:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:31:53,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:31:53,293 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:31:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:31:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:31:53,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:31:54,684 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:31:54,685 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:31:54,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:31:54 BoogieIcfgContainer [2020-10-23 18:31:54,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:31:54,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:31:54,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:31:54,693 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:31:54,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:31:52" (1/3) ... [2020-10-23 18:31:54,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1673e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:31:54, skipping insertion in model container [2020-10-23 18:31:54,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:31:53" (2/3) ... [2020-10-23 18:31:54,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1673e3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:31:54, skipping insertion in model container [2020-10-23 18:31:54,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:31:54" (3/3) ... [2020-10-23 18:31:54,697 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label46.c [2020-10-23 18:31:54,710 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:31:54,717 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:31:54,742 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:31:54,794 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:31:54,794 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:31:54,794 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:31:54,794 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:31:54,795 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:31:54,795 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:31:54,795 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:31:54,795 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:31:54,832 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states. [2020-10-23 18:31:54,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2020-10-23 18:31:54,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:54,860 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:31:54,860 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:54,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:54,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1336459021, now seen corresponding path program 1 times [2020-10-23 18:31:54,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:54,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1898740975] [2020-10-23 18:31:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:55,664 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:55,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:55,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:55,790 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:55,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1898740975] [2020-10-23 18:31:55,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:31:55,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 18:31:55,793 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062807220] [2020-10-23 18:31:55,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-23 18:31:55,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:55,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-23 18:31:55,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-23 18:31:55,820 INFO L87 Difference]: Start difference. First operand 211 states. Second operand 5 states. [2020-10-23 18:31:56,001 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:31:56,398 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:31:59,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:31:59,104 INFO L93 Difference]: Finished difference Result 703 states and 1239 transitions. [2020-10-23 18:31:59,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-23 18:31:59,106 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 119 [2020-10-23 18:31:59,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:31:59,128 INFO L225 Difference]: With dead ends: 703 [2020-10-23 18:31:59,129 INFO L226 Difference]: Without dead ends: 424 [2020-10-23 18:31:59,138 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-23 18:31:59,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2020-10-23 18:31:59,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 418. [2020-10-23 18:31:59,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 418 states. [2020-10-23 18:31:59,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 418 states to 418 states and 586 transitions. [2020-10-23 18:31:59,274 INFO L78 Accepts]: Start accepts. Automaton has 418 states and 586 transitions. Word has length 119 [2020-10-23 18:31:59,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:31:59,276 INFO L481 AbstractCegarLoop]: Abstraction has 418 states and 586 transitions. [2020-10-23 18:31:59,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-23 18:31:59,276 INFO L276 IsEmpty]: Start isEmpty. Operand 418 states and 586 transitions. [2020-10-23 18:31:59,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-23 18:31:59,282 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:31:59,283 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:31:59,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:31:59,284 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:31:59,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:31:59,285 INFO L82 PathProgramCache]: Analyzing trace with hash 1022234041, now seen corresponding path program 1 times [2020-10-23 18:31:59,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:31:59,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [81675818] [2020-10-23 18:31:59,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:31:59,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:59,567 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-23 18:31:59,569 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:31:59,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:59,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:31:59,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:31:59,662 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:31:59,662 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [81675818] [2020-10-23 18:31:59,663 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:31:59,663 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 18:31:59,663 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139349970] [2020-10-23 18:31:59,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-23 18:31:59,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:31:59,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-23 18:31:59,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-23 18:31:59,668 INFO L87 Difference]: Start difference. First operand 418 states and 586 transitions. Second operand 8 states. [2020-10-23 18:32:01,889 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:02,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:02,029 INFO L93 Difference]: Finished difference Result 1132 states and 1660 transitions. [2020-10-23 18:32:02,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 18:32:02,031 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 129 [2020-10-23 18:32:02,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:02,041 INFO L225 Difference]: With dead ends: 1132 [2020-10-23 18:32:02,041 INFO L226 Difference]: Without dead ends: 720 [2020-10-23 18:32:02,044 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-10-23 18:32:02,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 720 states. [2020-10-23 18:32:02,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 720 to 698. [2020-10-23 18:32:02,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 698 states. [2020-10-23 18:32:02,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 698 states to 698 states and 978 transitions. [2020-10-23 18:32:02,142 INFO L78 Accepts]: Start accepts. Automaton has 698 states and 978 transitions. Word has length 129 [2020-10-23 18:32:02,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:02,145 INFO L481 AbstractCegarLoop]: Abstraction has 698 states and 978 transitions. [2020-10-23 18:32:02,145 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-23 18:32:02,145 INFO L276 IsEmpty]: Start isEmpty. Operand 698 states and 978 transitions. [2020-10-23 18:32:02,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-10-23 18:32:02,160 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:02,161 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:02,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:32:02,161 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:02,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:02,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1641149163, now seen corresponding path program 1 times [2020-10-23 18:32:02,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:02,162 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5207046] [2020-10-23 18:32:02,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:02,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:02,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:02,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:02,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-23 18:32:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:02,554 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 33 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 18:32:02,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5207046] [2020-10-23 18:32:02,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1331305681] [2020-10-23 18:32:02,556 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 [2020-10-23 18:32:02,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:02,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-23 18:32:02,841 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:03,213 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:32:03,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:03,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 10 [2020-10-23 18:32:03,215 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1373406785] [2020-10-23 18:32:03,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:32:03,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:03,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:32:03,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:03,217 INFO L87 Difference]: Start difference. First operand 698 states and 978 transitions. Second operand 10 states. [2020-10-23 18:32:03,420 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:32:03,702 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:04,436 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-23 18:32:05,740 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-10-23 18:32:07,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:07,632 INFO L93 Difference]: Finished difference Result 2276 states and 3348 transitions. [2020-10-23 18:32:07,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-10-23 18:32:07,633 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 153 [2020-10-23 18:32:07,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:07,647 INFO L225 Difference]: With dead ends: 2276 [2020-10-23 18:32:07,648 INFO L226 Difference]: Without dead ends: 1584 [2020-10-23 18:32:07,652 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 162 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=154, Invalid=548, Unknown=0, NotChecked=0, Total=702 [2020-10-23 18:32:07,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1584 states. [2020-10-23 18:32:07,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1584 to 863. [2020-10-23 18:32:07,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 863 states. [2020-10-23 18:32:07,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 863 states to 863 states and 1150 transitions. [2020-10-23 18:32:07,729 INFO L78 Accepts]: Start accepts. Automaton has 863 states and 1150 transitions. Word has length 153 [2020-10-23 18:32:07,729 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:07,730 INFO L481 AbstractCegarLoop]: Abstraction has 863 states and 1150 transitions. [2020-10-23 18:32:07,730 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:32:07,730 INFO L276 IsEmpty]: Start isEmpty. Operand 863 states and 1150 transitions. [2020-10-23 18:32:07,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 195 [2020-10-23 18:32:07,735 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:32:07,735 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:32:07,948 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-10-23 18:32:07,949 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:32:07,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:32:07,950 INFO L82 PathProgramCache]: Analyzing trace with hash 696487856, now seen corresponding path program 1 times [2020-10-23 18:32:07,951 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:32:07,952 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [616702455] [2020-10-23 18:32:07,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:32:07,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:32:08,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-23 18:32:08,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-23 18:32:08,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-23 18:32:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2020-10-23 18:32:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,380 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 76 proven. 26 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2020-10-23 18:32:08,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [616702455] [2020-10-23 18:32:08,381 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144757331] [2020-10-23 18:32:08,381 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 [2020-10-23 18:32:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:32:08,576 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-23 18:32:08,598 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-23 18:32:08,813 INFO L134 CoverageAnalysis]: Checked inductivity of 140 backedges. 60 proven. 44 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2020-10-23 18:32:08,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-23 18:32:08,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4] total 10 [2020-10-23 18:32:08,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304729515] [2020-10-23 18:32:08,816 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 18:32:08,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:32:08,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 18:32:08,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-10-23 18:32:08,818 INFO L87 Difference]: Start difference. First operand 863 states and 1150 transitions. Second operand 10 states. [2020-10-23 18:32:08,955 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:32:09,247 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:10,079 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-10-23 18:32:11,109 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-23 18:32:13,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:32:13,696 INFO L93 Difference]: Finished difference Result 2321 states and 3219 transitions. [2020-10-23 18:32:13,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-23 18:32:13,696 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 194 [2020-10-23 18:32:13,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:32:13,697 INFO L225 Difference]: With dead ends: 2321 [2020-10-23 18:32:13,697 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 18:32:13,704 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 217 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=163, Invalid=593, Unknown=0, NotChecked=0, Total=756 [2020-10-23 18:32:13,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 18:32:13,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 18:32:13,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 18:32:13,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 18:32:13,706 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 194 [2020-10-23 18:32:13,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:32:13,706 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 18:32:13,706 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 18:32:13,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 18:32:13,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 18:32:13,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-23 18:32:13,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 18:32:14,654 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 34 [2020-10-23 18:32:14,765 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 26 [2020-10-23 18:32:15,333 WARN L193 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 44 [2020-10-23 18:32:15,613 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 36 [2020-10-23 18:32:15,618 INFO L274 CegarLoopResult]: For program point reach_errorEXIT(line 4) no Hoare annotation was computed. [2020-10-23 18:32:15,618 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 4) the Hoare annotation is: true [2020-10-23 18:32:15,618 INFO L274 CegarLoopResult]: For program point reach_errorFINAL(line 4) no Hoare annotation was computed. [2020-10-23 18:32:15,619 INFO L274 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-23 18:32:15,619 INFO L274 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:32:15,619 INFO L270 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)|)) [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point L564-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point L531-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point L498-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point L465-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point L432-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,620 INFO L274 CegarLoopResult]: For program point L399-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L267(lines 267 392) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-10-23 18:32:15,621 INFO L274 CegarLoopResult]: For program point L400(line 400) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L367(lines 367 392) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L301(lines 301 392) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L37(lines 37 392) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L335(lines 335 392) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L104(lines 104 392) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L567-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,622 INFO L274 CegarLoopResult]: For program point L534-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L501-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L468-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L435-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L402-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L270(lines 270 392) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L138(lines 138 392) no Hoare annotation was computed. [2020-10-23 18:32:15,623 INFO L274 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L403(line 403) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L205(lines 205 392) no Hoare annotation was computed. [2020-10-23 18:32:15,624 INFO L274 CegarLoopResult]: For program point L74(lines 74 392) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L570-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L537-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L504-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L471-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L438-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L405-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,625 INFO L274 CegarLoopResult]: For program point L339(lines 339 392) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L240(lines 240 392) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-10-23 18:32:15,626 INFO L274 CegarLoopResult]: For program point L406(line 406) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L175(lines 175 392) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L142(lines 142 392) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L374(lines 374 392) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L308(lines 308 392) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L275(lines 275 392) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L110(lines 110 392) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L573-1(lines 573 575) no Hoare annotation was computed. [2020-10-23 18:32:15,627 INFO L274 CegarLoopResult]: For program point L540-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L507-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L474-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L441-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L408-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L210(lines 210 392) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L45(lines 45 392) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-10-23 18:32:15,628 INFO L274 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L409(line 409) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L146(lines 146 392) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L543-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L510-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,629 INFO L274 CegarLoopResult]: For program point L477-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L444-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L411-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L180(lines 180 392) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-10-23 18:32:15,630 INFO L274 CegarLoopResult]: For program point L412(line 412) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L379(lines 379 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L280(lines 280 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L247(lines 247 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L82(lines 82 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L347(lines 347 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L314(lines 314 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L116(lines 116 392) no Hoare annotation was computed. [2020-10-23 18:32:15,631 INFO L274 CegarLoopResult]: For program point L546-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L513-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L480-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L447-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L414-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L216(lines 216 392) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L150(lines 150 392) no Hoare annotation was computed. [2020-10-23 18:32:15,632 INFO L274 CegarLoopResult]: For program point L51(lines 51 392) no Hoare annotation was computed. [2020-10-23 18:32:15,633 INFO L274 CegarLoopResult]: For program point calculate_outputFINAL(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,633 INFO L274 CegarLoopResult]: For program point calculate_outputEXIT(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,633 INFO L274 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-10-23 18:32:15,633 INFO L270 CegarLoopResult]: At program point L514(line 514) the Hoare annotation is: (let ((.cse0 (not (= |old(~a21~0)| 1)))) (and (or (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) .cse0) (not (<= |old(~a21~0)| 0)) (or (not (<= 15 |old(~a8~0)|)) .cse0) (or (not (<= |old(~a16~0)| 5)) .cse0))) [2020-10-23 18:32:15,633 INFO L274 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-10-23 18:32:15,633 INFO L274 CegarLoopResult]: For program point L514-1(line 514) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L86(lines 86 392) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L549-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L516-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L483-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L450-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L384(lines 384 392) no Hoare annotation was computed. [2020-10-23 18:32:15,634 INFO L274 CegarLoopResult]: For program point L417-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L318(lines 318 392) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L252(lines 252 392) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-10-23 18:32:15,635 INFO L274 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L220(lines 220 392) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L154(lines 154 392) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L121(lines 121 392) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L320(lines 320 392) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L188(lines 188 392) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L56(lines 56 392) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L552-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,636 INFO L274 CegarLoopResult]: For program point L519-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L486-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L453-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L420-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L288(lines 288 392) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-10-23 18:32:15,637 INFO L274 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-10-23 18:32:15,638 INFO L274 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-10-23 18:32:15,638 INFO L274 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-10-23 18:32:15,638 INFO L274 CegarLoopResult]: For program point L355(lines 355 392) no Hoare annotation was computed. [2020-10-23 18:32:15,638 INFO L274 CegarLoopResult]: For program point L191(lines 191 392) no Hoare annotation was computed. [2020-10-23 18:32:15,638 INFO L274 CegarLoopResult]: For program point L555-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,638 INFO L274 CegarLoopResult]: For program point L522-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,639 INFO L270 CegarLoopResult]: At program point calculate_outputENTRY(lines 32 577) the Hoare annotation is: (let ((.cse2 (= ~a7~0 |old(~a7~0)|)) (.cse3 (= ~a17~0 |old(~a17~0)|)) (.cse4 (= ~a20~0 |old(~a20~0)|)) (.cse5 (= ~a16~0 |old(~a16~0)|)) (.cse6 (= ~a8~0 |old(~a8~0)|))) (let ((.cse0 (and .cse2 .cse3 (= ~a21~0 1) .cse4 .cse5 .cse6)) (.cse1 (not (= |old(~a21~0)| 1)))) (and (or (not (<= 15 |old(~a8~0)|)) .cse0 .cse1) (or (not (<= |old(~a16~0)| 5)) .cse0 .cse1) (or (not (<= |old(~a21~0)| 0)) (and .cse2 .cse3 (= ~a21~0 |old(~a21~0)|) .cse4 .cse5 .cse6)) (or (not (= |old(~a17~0)| 1)) (not (= |old(~a20~0)| 1)) .cse0 .cse1)))) [2020-10-23 18:32:15,639 INFO L274 CegarLoopResult]: For program point L489-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,639 INFO L274 CegarLoopResult]: For program point L456-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,639 INFO L274 CegarLoopResult]: For program point L423-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,639 INFO L274 CegarLoopResult]: For program point L357(lines 357 392) no Hoare annotation was computed. [2020-10-23 18:32:15,639 INFO L274 CegarLoopResult]: For program point L258(lines 258 392) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L225(lines 225 392) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L126(lines 126 392) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-10-23 18:32:15,640 INFO L274 CegarLoopResult]: For program point L94(lines 94 392) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L326(lines 326 392) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L558-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L525-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L492-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L459-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L393(lines 393 395) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L426-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,641 INFO L274 CegarLoopResult]: For program point L393-2(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L294(lines 294 392) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L162(lines 162 392) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-10-23 18:32:15,642 INFO L274 CegarLoopResult]: For program point L394(line 394) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L196(lines 196 392) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L64(lines 64 392) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L263(lines 263 392) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L131(lines 131 392) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L561-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L528-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,643 INFO L274 CegarLoopResult]: For program point L495-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L462-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L429-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L363(lines 363 392) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L396-1(lines 32 577) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L99(lines 99 392) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L33(lines 33 392) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-10-23 18:32:15,644 INFO L274 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L397(line 397) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L331(lines 331 392) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L199(lines 199 392) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L67(lines 67 392) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L365(lines 365 392) no Hoare annotation was computed. [2020-10-23 18:32:15,645 INFO L274 CegarLoopResult]: For program point L233(lines 233 392) no Hoare annotation was computed. [2020-10-23 18:32:15,646 INFO L274 CegarLoopResult]: For program point L167(lines 167 392) no Hoare annotation was computed. [2020-10-23 18:32:15,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-23 18:32:15,646 INFO L270 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a21~0 1) (<= ~a16~0 5) (= ~a20~0 1) (not (= ~a7~0 1)) (<= 15 ~a8~0) (= ~a17~0 1)) [2020-10-23 18:32:15,646 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 18:32:15,646 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-23 18:32:15,647 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 579 596) the Hoare annotation is: (or (not (= |old(~a17~0)| 1)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and (= ~a7~0 |old(~a7~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 1) (= ~a20~0 |old(~a20~0)|) (= ~a16~0 |old(~a16~0)|) (= ~a8~0 |old(~a8~0)|)) (not (= |old(~a21~0)| 1)) (= |old(~a7~0)| 1)) [2020-10-23 18:32:15,647 INFO L274 CegarLoopResult]: For program point mainEXIT(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:32:15,647 INFO L270 CegarLoopResult]: At program point L593(line 593) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and .cse0 (<= ~a16~0 5)) (<= ~a21~0 0) (not (= |old(~a21~0)| 1)) (and .cse0 (= ~a20~0 1) (= ~a17~0 1)) (= |old(~a7~0)| 1))) [2020-10-23 18:32:15,647 INFO L274 CegarLoopResult]: For program point L593-1(line 593) no Hoare annotation was computed. [2020-10-23 18:32:15,647 INFO L274 CegarLoopResult]: For program point L590(line 590) no Hoare annotation was computed. [2020-10-23 18:32:15,648 INFO L270 CegarLoopResult]: At program point L585-2(lines 585 595) the Hoare annotation is: (let ((.cse0 (= ~a21~0 1))) (or (not (= |old(~a17~0)| 1)) (and .cse0 (<= 15 ~a8~0)) (not (<= |old(~a16~0)| 5)) (not (<= 15 |old(~a8~0)|)) (not (= |old(~a20~0)| 1)) (and .cse0 (<= ~a16~0 5)) (<= ~a21~0 0) (not (= |old(~a21~0)| 1)) (and .cse0 (= ~a20~0 1) (= ~a17~0 1)) (= |old(~a7~0)| 1))) [2020-10-23 18:32:15,648 INFO L274 CegarLoopResult]: For program point L585-3(lines 579 596) no Hoare annotation was computed. [2020-10-23 18:32:15,681 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:32:15 BoogieIcfgContainer [2020-10-23 18:32:15,681 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:32:15,685 INFO L168 Benchmark]: Toolchain (without parser) took 23509.11 ms. Allocated memory was 160.4 MB in the beginning and 364.9 MB in the end (delta: 204.5 MB). Free memory was 139.7 MB in the beginning and 168.0 MB in the end (delta: -28.2 MB). Peak memory consumption was 218.1 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:15,686 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 160.4 MB. Free memory was 132.1 MB in the beginning and 132.0 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:32:15,688 INFO L168 Benchmark]: CACSL2BoogieTranslator took 855.62 ms. Allocated memory is still 160.4 MB. Free memory was 139.1 MB in the beginning and 132.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:15,690 INFO L168 Benchmark]: Boogie Preprocessor took 145.66 ms. Allocated memory is still 160.4 MB. Free memory was 132.5 MB in the beginning and 127.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:15,691 INFO L168 Benchmark]: RCFGBuilder took 1503.92 ms. Allocated memory was 160.4 MB in the beginning and 195.0 MB in the end (delta: 34.6 MB). Free memory was 127.8 MB in the beginning and 106.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:15,693 INFO L168 Benchmark]: TraceAbstraction took 20991.90 ms. Allocated memory was 195.0 MB in the beginning and 364.9 MB in the end (delta: 169.9 MB). Free memory was 105.5 MB in the beginning and 168.0 MB in the end (delta: -62.4 MB). Peak memory consumption was 149.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:32:15,702 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 160.4 MB. Free memory was 132.1 MB in the beginning and 132.0 MB in the end (delta: 76.4 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 855.62 ms. Allocated memory is still 160.4 MB. Free memory was 139.1 MB in the beginning and 132.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 145.66 ms. Allocated memory is still 160.4 MB. Free memory was 132.5 MB in the beginning and 127.8 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1503.92 ms. Allocated memory was 160.4 MB in the beginning and 195.0 MB in the end (delta: 34.6 MB). Free memory was 127.8 MB in the beginning and 106.1 MB in the end (delta: 21.8 MB). Peak memory consumption was 57.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 20991.90 ms. Allocated memory was 195.0 MB in the beginning and 364.9 MB in the end (delta: 169.9 MB). Free memory was 105.5 MB in the beginning and 168.0 MB in the end (delta: -62.4 MB). Peak memory consumption was 149.4 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: ((((((((!(\old(a17) == 1) || (a21 == 1 && 15 <= a8)) || !(\old(a16) <= 5)) || !(15 <= \old(a8))) || !(\old(a20) == 1)) || (a21 == 1 && a16 <= 5)) || a21 <= 0) || !(\old(a21) == 1)) || ((a21 == 1 && a20 == 1) && a17 == 1)) || \old(a7) == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 211 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 19.1s, OverallIterations: 4, TraceHistogramMax: 5, AutomataDifference: 15.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 1.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 127 SDtfs, 3371 SDslu, 279 SDs, 0 SdLazy, 4768 SolverSat, 1347 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 452 GetRequests, 384 SyntacticMatches, 1 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 3.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=863occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 749 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 74 PreInvPairs, 108 NumberOfFragments, 404 HoareAnnotationTreeSize, 74 FomulaSimplifications, 18320 FormulaSimplificationTreeSizeReduction, 0.5s HoareSimplificationTime, 9 FomulaSimplificationsInter, 1768 FormulaSimplificationTreeSizeReductionInter, 1.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 942 NumberOfCodeBlocks, 942 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 936 ConstructedInterpolants, 0 QuantifiedInterpolants, 393139 SizeOfPredicates, 2 NumberOfNonLiveVariables, 1149 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 291/365 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...