/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:29:49,081 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:29:49,086 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:29:49,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:29:49,144 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:29:49,148 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:29:49,152 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:29:49,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:29:49,164 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:29:49,172 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:29:49,174 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:29:49,175 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:29:49,176 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:29:49,180 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:29:49,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:29:49,184 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:29:49,185 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:29:49,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:29:49,205 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:29:49,210 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:29:49,212 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:29:49,216 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:29:49,217 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:29:49,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:29:49,230 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-23 20:29:49,235 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:29:49,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:29:49,238 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:29:49,239 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:29:49,240 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:29:49,241 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:29:49,241 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:29:49,242 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:29:49,242 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:29:49,243 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:29:49,243 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:29:49,245 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:29:49,267 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:29:49,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:29:49,272 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:29:49,273 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:29:49,273 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:29:49,273 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:29:49,273 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:29:49,274 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:29:49,274 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:29:49,274 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:29:49,275 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:29:49,275 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:29:49,276 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:29:49,276 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:29:49,276 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:29:49,276 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:29:49,277 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:29:49,277 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:29:49,277 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:29:49,277 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:29:49,277 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:29:49,278 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:29:49,278 INFO L138 SettingsManager]: * Use separate solver for trace checks=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:29:49,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:29:49,794 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:29:49,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:29:49,799 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:29:49,800 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:29:49,801 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2020-10-23 20:29:49,885 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0435f629/cec68fe99a3747d5ae5184bacf74e238/FLAGa21cddfc0 [2020-10-23 20:29:50,493 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:29:50,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/verifythis/elimination_max_rec_onepoint.c [2020-10-23 20:29:50,502 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0435f629/cec68fe99a3747d5ae5184bacf74e238/FLAGa21cddfc0 [2020-10-23 20:29:50,855 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0435f629/cec68fe99a3747d5ae5184bacf74e238 [2020-10-23 20:29:50,858 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:29:50,864 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:29:50,867 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:29:50,867 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:29:50,872 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:29:50,873 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:29:50" (1/1) ... [2020-10-23 20:29:50,877 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@93ea8ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:50, skipping insertion in model container [2020-10-23 20:29:50,877 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:29:50" (1/1) ... [2020-10-23 20:29:50,886 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:29:50,905 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:29:51,071 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:29:51,087 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:29:51,112 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:29:51,134 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:29:51,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51 WrapperNode [2020-10-23 20:29:51,135 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:29:51,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:29:51,136 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:29:51,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:29:51,152 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,152 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,162 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,162 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,175 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,177 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (1/1) ... [2020-10-23 20:29:51,180 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:29:51,181 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:29:51,181 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:29:51,181 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:29:51,182 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (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 20:29:51,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:29:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:29:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:29:51,273 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-10-23 20:29:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 20:29:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-10-23 20:29:51,274 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:29:51,275 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2020-10-23 20:29:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2020-10-23 20:29:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:29:51,275 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:29:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:29:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:29:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:29:51,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-10-23 20:29:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 20:29:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:29:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-10-23 20:29:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:29:51,277 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:29:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:29:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2020-10-23 20:29:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:29:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:29:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:29:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:29:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:29:51,790 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:29:51,791 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-10-23 20:29:51,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:29:51 BoogieIcfgContainer [2020-10-23 20:29:51,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:29:51,796 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:29:51,796 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:29:51,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:29:51,801 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:29:50" (1/3) ... [2020-10-23 20:29:51,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4e6874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:29:51, skipping insertion in model container [2020-10-23 20:29:51,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:29:51" (2/3) ... [2020-10-23 20:29:51,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a4e6874 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:29:51, skipping insertion in model container [2020-10-23 20:29:51,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:29:51" (3/3) ... [2020-10-23 20:29:51,804 INFO L111 eAbstractionObserver]: Analyzing ICFG elimination_max_rec_onepoint.c [2020-10-23 20:29:51,818 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:29:51,825 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 20:29:51,842 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 20:29:51,870 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:29:51,870 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:29:51,870 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:29:51,870 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:29:51,871 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:29:51,871 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:29:51,871 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:29:51,871 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:29:51,890 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states. [2020-10-23 20:29:51,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-10-23 20:29:51,925 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:29:51,926 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 20:29:51,927 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:29:51,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:29:51,934 INFO L82 PathProgramCache]: Analyzing trace with hash 266751524, now seen corresponding path program 1 times [2020-10-23 20:29:51,945 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:29:51,946 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2001360639] [2020-10-23 20:29:51,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:29:52,033 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:29:52,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:52,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:29:52,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:52,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:29:52,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:52,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:29:52,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:52,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:29:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:52,530 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 20:29:52,532 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2001360639] [2020-10-23 20:29:52,535 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:29:52,535 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:29:52,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355125185] [2020-10-23 20:29:52,540 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:29:52,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:29:52,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:29:52,557 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:29:52,559 INFO L87 Difference]: Start difference. First operand 96 states. Second operand 10 states. [2020-10-23 20:29:53,231 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-10-23 20:29:54,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:29:54,067 INFO L93 Difference]: Finished difference Result 231 states and 268 transitions. [2020-10-23 20:29:54,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:29:54,069 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 46 [2020-10-23 20:29:54,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:29:54,094 INFO L225 Difference]: With dead ends: 231 [2020-10-23 20:29:54,095 INFO L226 Difference]: Without dead ends: 144 [2020-10-23 20:29:54,100 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2020-10-23 20:29:54,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-10-23 20:29:54,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 128. [2020-10-23 20:29:54,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 128 states. [2020-10-23 20:29:54,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 138 transitions. [2020-10-23 20:29:54,182 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 138 transitions. Word has length 46 [2020-10-23 20:29:54,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:29:54,183 INFO L481 AbstractCegarLoop]: Abstraction has 128 states and 138 transitions. [2020-10-23 20:29:54,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:29:54,183 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 138 transitions. [2020-10-23 20:29:54,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-10-23 20:29:54,186 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:29:54,187 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 20:29:54,187 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:29:54,187 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:29:54,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:29:54,188 INFO L82 PathProgramCache]: Analyzing trace with hash 2018690229, now seen corresponding path program 1 times [2020-10-23 20:29:54,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:29:54,189 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1637580193] [2020-10-23 20:29:54,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:29:54,193 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:29:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:54,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:29:54,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:54,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:29:54,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:54,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:29:54,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:54,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:29:54,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-23 20:29:54,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:54,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-23 20:29:54,553 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1637580193] [2020-10-23 20:29:54,553 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:29:54,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2020-10-23 20:29:54,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812043408] [2020-10-23 20:29:54,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-23 20:29:54,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:29:54,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-23 20:29:54,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=131, Unknown=0, NotChecked=0, Total=156 [2020-10-23 20:29:54,556 INFO L87 Difference]: Start difference. First operand 128 states and 138 transitions. Second operand 13 states. [2020-10-23 20:29:55,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:29:55,945 INFO L93 Difference]: Finished difference Result 135 states and 144 transitions. [2020-10-23 20:29:55,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-10-23 20:29:55,946 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 58 [2020-10-23 20:29:55,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:29:55,951 INFO L225 Difference]: With dead ends: 135 [2020-10-23 20:29:55,951 INFO L226 Difference]: Without dead ends: 114 [2020-10-23 20:29:55,955 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=106, Invalid=494, Unknown=0, NotChecked=0, Total=600 [2020-10-23 20:29:55,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-10-23 20:29:56,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2020-10-23 20:29:56,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2020-10-23 20:29:56,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 122 transitions. [2020-10-23 20:29:56,022 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 122 transitions. Word has length 58 [2020-10-23 20:29:56,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:29:56,024 INFO L481 AbstractCegarLoop]: Abstraction has 114 states and 122 transitions. [2020-10-23 20:29:56,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-23 20:29:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 122 transitions. [2020-10-23 20:29:56,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-23 20:29:56,034 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:29:56,035 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:29:56,035 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:29:56,035 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:29:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:29:56,041 INFO L82 PathProgramCache]: Analyzing trace with hash -1111445585, now seen corresponding path program 1 times [2020-10-23 20:29:56,064 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:29:56,064 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1959534347] [2020-10-23 20:29:56,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:29:56,069 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:29:56,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,429 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:29:56,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:29:56,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:29:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:29:56,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:29:56,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 20:29:56,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 20:29:56,514 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1959534347] [2020-10-23 20:29:56,514 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:29:56,514 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:29:56,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10377106] [2020-10-23 20:29:56,518 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:29:56,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:29:56,518 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:29:56,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:29:56,519 INFO L87 Difference]: Start difference. First operand 114 states and 122 transitions. Second operand 15 states. [2020-10-23 20:29:58,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:29:58,830 INFO L93 Difference]: Finished difference Result 186 states and 201 transitions. [2020-10-23 20:29:58,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-23 20:29:58,831 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 73 [2020-10-23 20:29:58,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:29:58,834 INFO L225 Difference]: With dead ends: 186 [2020-10-23 20:29:58,834 INFO L226 Difference]: Without dead ends: 183 [2020-10-23 20:29:58,835 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=160, Invalid=710, Unknown=0, NotChecked=0, Total=870 [2020-10-23 20:29:58,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2020-10-23 20:29:58,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 157. [2020-10-23 20:29:58,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 157 states. [2020-10-23 20:29:58,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 157 states to 157 states and 170 transitions. [2020-10-23 20:29:58,879 INFO L78 Accepts]: Start accepts. Automaton has 157 states and 170 transitions. Word has length 73 [2020-10-23 20:29:58,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:29:58,880 INFO L481 AbstractCegarLoop]: Abstraction has 157 states and 170 transitions. [2020-10-23 20:29:58,880 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:29:58,880 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states and 170 transitions. [2020-10-23 20:29:58,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-10-23 20:29:58,881 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:29:58,882 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:29:58,882 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:29:58,882 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:29:58,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:29:58,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1526359473, now seen corresponding path program 1 times [2020-10-23 20:29:58,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:29:58,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1575544188] [2020-10-23 20:29:58,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:29:58,887 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:29:58,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:29:59,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:29:59,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:29:59,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:29:59,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:29:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 20:29:59,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:29:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 20:29:59,210 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1575544188] [2020-10-23 20:29:59,210 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:29:59,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:29:59,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668572004] [2020-10-23 20:29:59,211 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:29:59,211 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:29:59,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:29:59,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:29:59,212 INFO L87 Difference]: Start difference. First operand 157 states and 170 transitions. Second operand 15 states. [2020-10-23 20:30:01,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:30:01,286 INFO L93 Difference]: Finished difference Result 228 states and 249 transitions. [2020-10-23 20:30:01,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-23 20:30:01,288 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 73 [2020-10-23 20:30:01,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:30:01,291 INFO L225 Difference]: With dead ends: 228 [2020-10-23 20:30:01,292 INFO L226 Difference]: Without dead ends: 225 [2020-10-23 20:30:01,293 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 139 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=250, Invalid=806, Unknown=0, NotChecked=0, Total=1056 [2020-10-23 20:30:01,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2020-10-23 20:30:01,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 200. [2020-10-23 20:30:01,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-23 20:30:01,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 218 transitions. [2020-10-23 20:30:01,377 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 218 transitions. Word has length 73 [2020-10-23 20:30:01,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:30:01,380 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 218 transitions. [2020-10-23 20:30:01,381 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:30:01,381 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 218 transitions. [2020-10-23 20:30:01,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2020-10-23 20:30:01,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:30:01,394 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-23 20:30:01,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:30:01,395 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:30:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:30:01,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1118871710, now seen corresponding path program 1 times [2020-10-23 20:30:01,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:30:01,396 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [133159914] [2020-10-23 20:30:01,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:30:01,400 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:30:01,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,641 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:30:01,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:30:01,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:30:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:30:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:30:01,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,697 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 20:30:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2020-10-23 20:30:01,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:01,729 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-10-23 20:30:01,730 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [133159914] [2020-10-23 20:30:01,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:30:01,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:30:01,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460588777] [2020-10-23 20:30:01,739 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:30:01,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:30:01,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:30:01,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=181, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:30:01,741 INFO L87 Difference]: Start difference. First operand 200 states and 218 transitions. Second operand 15 states. [2020-10-23 20:30:03,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:30:03,166 INFO L93 Difference]: Finished difference Result 213 states and 233 transitions. [2020-10-23 20:30:03,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-23 20:30:03,167 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 85 [2020-10-23 20:30:03,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:30:03,172 INFO L225 Difference]: With dead ends: 213 [2020-10-23 20:30:03,172 INFO L226 Difference]: Without dead ends: 148 [2020-10-23 20:30:03,176 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2020-10-23 20:30:03,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2020-10-23 20:30:03,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 119. [2020-10-23 20:30:03,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2020-10-23 20:30:03,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 126 transitions. [2020-10-23 20:30:03,208 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 126 transitions. Word has length 85 [2020-10-23 20:30:03,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:30:03,208 INFO L481 AbstractCegarLoop]: Abstraction has 119 states and 126 transitions. [2020-10-23 20:30:03,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:30:03,209 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 126 transitions. [2020-10-23 20:30:03,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-23 20:30:03,211 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:30:03,211 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:30:03,212 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:30:03,212 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:30:03,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:30:03,212 INFO L82 PathProgramCache]: Analyzing trace with hash 753971012, now seen corresponding path program 2 times [2020-10-23 20:30:03,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:30:03,213 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1705402121] [2020-10-23 20:30:03,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:30:03,222 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:30:03,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:30:03,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:30:03,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:30:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:30:03,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:30:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 20:30:03,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-23 20:30:03,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 20:30:03,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:03,752 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-23 20:30:03,753 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1705402121] [2020-10-23 20:30:03,753 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:30:03,753 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-10-23 20:30:03,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868828584] [2020-10-23 20:30:03,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-10-23 20:30:03,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:30:03,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-10-23 20:30:03,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=339, Unknown=0, NotChecked=0, Total=380 [2020-10-23 20:30:03,755 INFO L87 Difference]: Start difference. First operand 119 states and 126 transitions. Second operand 20 states. [2020-10-23 20:30:06,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:30:06,335 INFO L93 Difference]: Finished difference Result 175 states and 186 transitions. [2020-10-23 20:30:06,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-10-23 20:30:06,337 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 100 [2020-10-23 20:30:06,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:30:06,339 INFO L225 Difference]: With dead ends: 175 [2020-10-23 20:30:06,339 INFO L226 Difference]: Without dead ends: 172 [2020-10-23 20:30:06,341 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 244 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=305, Invalid=1501, Unknown=0, NotChecked=0, Total=1806 [2020-10-23 20:30:06,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172 states. [2020-10-23 20:30:06,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172 to 125. [2020-10-23 20:30:06,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 125 states. [2020-10-23 20:30:06,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 134 transitions. [2020-10-23 20:30:06,366 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 134 transitions. Word has length 100 [2020-10-23 20:30:06,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:30:06,366 INFO L481 AbstractCegarLoop]: Abstraction has 125 states and 134 transitions. [2020-10-23 20:30:06,366 INFO L482 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-10-23 20:30:06,367 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 134 transitions. [2020-10-23 20:30:06,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2020-10-23 20:30:06,368 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:30:06,368 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-23 20:30:06,368 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:30:06,369 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 20:30:06,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:30:06,369 INFO L82 PathProgramCache]: Analyzing trace with hash 339057124, now seen corresponding path program 1 times [2020-10-23 20:30:06,369 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:30:06,370 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [405332517] [2020-10-23 20:30:06,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:30:06,376 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:30:06,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:30:06,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-10-23 20:30:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2020-10-23 20:30:06,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-23 20:30:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2020-10-23 20:30:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,541 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2020-10-23 20:30:06,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2020-10-23 20:30:06,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2020-10-23 20:30:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:30:06,568 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-10-23 20:30:06,568 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [405332517] [2020-10-23 20:30:06,568 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:30:06,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-10-23 20:30:06,569 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517756374] [2020-10-23 20:30:06,569 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-23 20:30:06,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:30:06,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-23 20:30:06,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=90, Unknown=0, NotChecked=0, Total=110 [2020-10-23 20:30:06,570 INFO L87 Difference]: Start difference. First operand 125 states and 134 transitions. Second operand 11 states. [2020-10-23 20:30:07,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:30:07,188 INFO L93 Difference]: Finished difference Result 129 states and 137 transitions. [2020-10-23 20:30:07,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-23 20:30:07,188 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 100 [2020-10-23 20:30:07,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:30:07,189 INFO L225 Difference]: With dead ends: 129 [2020-10-23 20:30:07,189 INFO L226 Difference]: Without dead ends: 0 [2020-10-23 20:30:07,190 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=68, Invalid=238, Unknown=0, NotChecked=0, Total=306 [2020-10-23 20:30:07,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-23 20:30:07,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-23 20:30:07,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-23 20:30:07,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-23 20:30:07,192 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 100 [2020-10-23 20:30:07,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:30:07,193 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-23 20:30:07,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-23 20:30:07,193 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-23 20:30:07,193 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-23 20:30:07,193 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-23 20:30:07,196 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-23 20:30:08,618 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-23 20:30:08,742 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 25 [2020-10-23 20:30:08,922 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 30 [2020-10-23 20:30:09,131 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-23 20:30:09,305 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-10-23 20:30:09,554 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-23 20:30:09,753 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 35 [2020-10-23 20:30:09,923 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-23 20:30:10,200 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-23 20:30:10,402 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2020-10-23 20:30:10,579 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-10-23 20:30:10,858 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-10-23 20:30:11,061 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-10-23 20:30:11,404 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 36 [2020-10-23 20:30:11,627 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 40 [2020-10-23 20:30:11,891 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2020-10-23 20:30:12,104 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2020-10-23 20:30:12,313 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-10-23 20:30:12,529 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2020-10-23 20:30:12,712 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 36 [2020-10-23 20:30:12,920 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 40 [2020-10-23 20:30:13,118 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-10-23 20:30:13,373 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 37 [2020-10-23 20:30:13,656 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 36 [2020-10-23 20:30:13,827 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 33 [2020-10-23 20:30:14,062 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 39 [2020-10-23 20:30:14,218 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 33 [2020-10-23 20:30:14,429 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 43 [2020-10-23 20:30:14,604 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 41 [2020-10-23 20:30:14,633 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,633 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L277 CegarLoopResult]: At program point reach_errorFINAL(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L277 CegarLoopResult]: At program point L5-4(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,634 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |old(#NULL.base)| |#NULL.base|) (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#t~string6.offset)| |#t~string6.offset|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |#t~string7.offset| |old(#t~string7.offset)|) (= |old(#t~string7.base)| |#t~string7.base|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point L5(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point L5-1(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point L5-2(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point L5-3(line 5) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,635 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point assume_abort_if_notENTRY(lines 7 9) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point L8-1(line 8) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point L8-3(lines 7 9) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point assume_abort_if_notEXIT(lines 7 9) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 40 54) the Hoare annotation is: true [2020-10-23 20:30:14,636 INFO L277 CegarLoopResult]: At program point L52(line 52) the Hoare annotation is: true [2020-10-23 20:30:14,637 INFO L270 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ax~1 0) (= main_~ai~1 0))) [2020-10-23 20:30:14,637 INFO L277 CegarLoopResult]: At program point L50-1(line 50) the Hoare annotation is: true [2020-10-23 20:30:14,637 INFO L270 CegarLoopResult]: At program point L48(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2020-10-23 20:30:14,637 INFO L270 CegarLoopResult]: At program point L48-1(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= |main_#t~mem19| 0))) [2020-10-23 20:30:14,637 INFO L270 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-23 20:30:14,637 INFO L270 CegarLoopResult]: At program point L48-2(line 48) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ai~1 0) (= |main_#t~mem19| 0))) [2020-10-23 20:30:14,638 INFO L270 CegarLoopResult]: At program point L46-1(line 46) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |main_#t~malloc17.base|)) [2020-10-23 20:30:14,638 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 40 54) the Hoare annotation is: true [2020-10-23 20:30:14,638 INFO L270 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,638 INFO L270 CegarLoopResult]: At program point L42-1(line 42) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,638 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 40 54) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,638 INFO L270 CegarLoopResult]: At program point L49(line 49) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ai~1 0))) [2020-10-23 20:30:14,638 INFO L270 CegarLoopResult]: At program point L49-1(line 49) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= |main_#t~mem20| 0) (= main_~ai~1 0))) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L47(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L49-2(line 49) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)) (= main_~ax~1 0) (= |main_#t~mem20| 0) (= main_~ai~1 0))) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L47-1(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L47-2(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L45-1(line 45) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L47-3(line 47) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (and (= (select |#memory_int| main_~a~0.base) .cse0) (= .cse0 (select |#memory_int| |main_#t~malloc17.base|)))) [2020-10-23 20:30:14,639 INFO L270 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,640 INFO L270 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,640 INFO L270 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,640 INFO L270 CegarLoopResult]: At program point L41-1(line 41) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |#memory_int| |old(#memory_int)|) (= |old(#valid)| |#valid|)) [2020-10-23 20:30:14,640 INFO L270 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2020-10-23 20:30:14,640 INFO L270 CegarLoopResult]: At program point L33-1(line 33) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse2 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse0 (= (select |#memory_int| check_~a.base) .cse5)) (.cse1 (= |check_#t~mem13| 0)) (.cse3 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or (and .cse0 .cse1) .cse2 (not (<= 1 |check_#in~x|)) .cse3) (or .cse2 (and (or (let ((.cse4 (+ check_~y 1))) (and (<= .cse4 |check_#in~n|) (<= .cse4 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse0 .cse1) (not (= |check_#in~x| 0)) .cse3)))) [2020-10-23 20:30:14,640 INFO L277 CegarLoopResult]: At program point checkENTRY(lines 16 38) the Hoare annotation is: true [2020-10-23 20:30:14,640 INFO L270 CegarLoopResult]: At program point L33-2(line 33) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (= check_~ai~0 0)) (.cse2 (= (select |#memory_int| check_~a.base) .cse6)) (.cse3 (= |check_#t~mem13| 0)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) (and .cse1 .cse2 .cse3) .cse4) (or .cse0 (and (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse1 .cse2 .cse3) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,641 INFO L270 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2020-10-23 20:30:14,641 INFO L270 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2020-10-23 20:30:14,641 INFO L270 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2020-10-23 20:30:14,641 INFO L270 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 .cse2) (or .cse0 (and (or (let ((.cse3 (+ check_~y 1))) (and (<= .cse3 |check_#in~n|) (<= .cse3 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2) (not (= |check_#in~x| 0)) .cse1)))) [2020-10-23 20:30:14,641 INFO L270 CegarLoopResult]: At program point L27-1(line 27) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2020-10-23 20:30:14,641 INFO L270 CegarLoopResult]: At program point L27-2(line 27) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2020-10-23 20:30:14,642 INFO L270 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,642 INFO L270 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,642 INFO L270 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: (let ((.cse3 ((as const (Array Int Int)) 0)) (.cse5 (+ check_~y 1))) (let ((.cse1 (<= .cse5 |check_#in~n|)) (.cse2 (<= .cse5 check_~n)) (.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse3)))) (and (or .cse0 (and .cse1 .cse2 (= (select |#memory_int| check_~a.base) .cse3) (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or (and .cse1 .cse2 (= check_~x 0)) .cse0 (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,642 INFO L270 CegarLoopResult]: At program point checkFINAL(lines 16 38) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 1 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (= (select |#memory_int| check_~a.base) .cse0))) [2020-10-23 20:30:14,642 INFO L270 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse5))) (.cse2 (= check_~ai~0 0)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (and .cse2 .cse3)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and (or (let ((.cse4 (+ check_~y 1))) (and (<= .cse4 |check_#in~n|) (<= .cse4 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2 .cse3))))) [2020-10-23 20:30:14,642 INFO L270 CegarLoopResult]: At program point L34-1(line 34) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse6))) (.cse2 (= |check_#t~mem14| 0)) (.cse3 (= check_~ai~0 0)) (.cse4 (= (select |#memory_int| check_~a.base) .cse6))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (and .cse2 .cse3 .cse4)) (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse2 .cse3 .cse4))))) [2020-10-23 20:30:14,643 INFO L270 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse7 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= check_~ax~0 0)) (.cse3 (= |check_#t~mem14| 0)) (.cse4 (= check_~ai~0 0)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse7)))) (and (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (and .cse2 .cse3 .cse4 .cse5)) (or .cse0 (and .cse2 (or (let ((.cse6 (+ check_~y 1))) (and (<= .cse6 |check_#in~n|) (<= .cse6 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse3 .cse4 .cse5) (not (= |check_#in~x| 0)) .cse1)))) [2020-10-23 20:30:14,643 INFO L270 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,643 INFO L270 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0)) (.cse7 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse2 (= |check_#t~mem8| 0)) (.cse3 (<= .cse7 |check_#in~n|)) (.cse4 (<= .cse7 check_~n)) (.cse5 (= (select |#memory_int| check_~a.base) .cse6)) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1 (and .cse2 .cse3 .cse4 .cse5 (= check_~x 0))) (or .cse0 (not (<= 1 |check_#in~x|)) (and .cse2 .cse3 .cse4 .cse5 (<= 1 check_~x)) .cse1)))) [2020-10-23 20:30:14,643 INFO L270 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,644 INFO L270 CegarLoopResult]: At program point L26-2(lines 26 27) the Hoare annotation is: (let ((.cse8 (+ check_~y 1)) (.cse7 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse6 (not (= (select |#memory_int| |check_#in~a.base|) .cse7))) (.cse1 (= |check_#t~mem8| 0)) (.cse2 (<= .cse8 |check_#in~n|)) (.cse3 (<= .cse8 check_~n)) (.cse4 (= |check_#t~mem9| 0)) (.cse5 (= (select |#memory_int| check_~a.base) .cse7))) (and (or .cse0 (and .cse1 .cse2 .cse3 .cse4 .cse5 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse6) (or .cse0 (not (= |check_#in~x| 0)) .cse6 (and .cse1 .cse2 .cse3 .cse4 .cse5 (= check_~x 0)))))) [2020-10-23 20:30:14,644 INFO L270 CegarLoopResult]: At program point L26-3(line 26) the Hoare annotation is: (let ((.cse4 (= |check_#in~x| 0)) (.cse1 (<= 1 |check_#in~x|)) (.cse9 ((as const (Array Int Int)) 0)) (.cse5 (<= (+ |check_#in~y| 1) |check_#in~n|))) (let ((.cse0 (not .cse5)) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse9))) (.cse3 (and (let ((.cse8 (+ check_~y 1))) (let ((.cse6 (<= .cse8 |check_#in~n|)) (.cse7 (<= .cse8 check_~n))) (or (and .cse5 .cse4 .cse6 .cse7 (= check_~x 0)) (and .cse5 .cse6 .cse7 .cse1 (<= 1 check_~x))))) (= |check_#t~mem8| 0) (= |check_#t~mem9| 0) (= (select |#memory_int| check_~a.base) .cse9)))) (and (or .cse0 (not .cse1) .cse2 .cse3) (or .cse0 (not .cse4) .cse2 .cse3)))) [2020-10-23 20:30:14,644 INFO L270 CegarLoopResult]: At program point L26-4(line 26) the Hoare annotation is: (let ((.cse4 (= |check_#in~x| 0)) (.cse1 (<= 1 |check_#in~x|)) (.cse9 ((as const (Array Int Int)) 0)) (.cse5 (<= (+ |check_#in~y| 1) |check_#in~n|))) (let ((.cse0 (not .cse5)) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse9))) (.cse3 (and (let ((.cse8 (+ check_~y 1))) (let ((.cse6 (<= .cse8 |check_#in~n|)) (.cse7 (<= .cse8 check_~n))) (or (and .cse5 .cse4 .cse6 .cse7 (= check_~x 0)) (and .cse5 .cse6 .cse7 .cse1 (<= 1 check_~x))))) (= (select |#memory_int| check_~a.base) .cse9)))) (and (or .cse0 (not .cse1) .cse2 .cse3) (or .cse0 (not .cse4) .cse2 .cse3)))) [2020-10-23 20:30:14,644 INFO L270 CegarLoopResult]: At program point L26-5(line 26) the Hoare annotation is: (let ((.cse4 (= |check_#in~x| 0)) (.cse1 (<= 1 |check_#in~x|)) (.cse9 ((as const (Array Int Int)) 0)) (.cse5 (<= (+ |check_#in~y| 1) |check_#in~n|))) (let ((.cse0 (not .cse5)) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse9))) (.cse3 (and (let ((.cse8 (+ check_~y 1))) (let ((.cse6 (<= .cse8 |check_#in~n|)) (.cse7 (<= .cse8 check_~n))) (or (and .cse5 .cse4 .cse6 .cse7 (= check_~x 0)) (and .cse5 .cse6 .cse7 .cse1 (<= 1 check_~x))))) (= (select |#memory_int| check_~a.base) .cse9)))) (and (or .cse0 (not .cse1) .cse2 .cse3) (or .cse0 (not .cse4) .cse2 .cse3)))) [2020-10-23 20:30:14,644 INFO L270 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,645 INFO L270 CegarLoopResult]: At program point L26-6(line 26) the Hoare annotation is: (let ((.cse1 (<= 1 |check_#in~x|)) (.cse4 (= |check_#in~x| 0)) (.cse5 ((as const (Array Int Int)) 0)) (.cse6 (<= (+ |check_#in~y| 1) |check_#in~n|))) (let ((.cse0 (not .cse6)) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse5))) (.cse3 (and (= (select |#memory_int| check_~a.base) .cse5) (let ((.cse9 (+ check_~y 1))) (let ((.cse7 (<= .cse9 |check_#in~n|)) (.cse8 (<= .cse9 check_~n))) (or (and .cse6 .cse7 (<= 1 |check_#t~post10|) .cse8 .cse1 (<= 1 check_~x)) (and .cse6 .cse4 .cse7 .cse8 (= |check_#t~post10| 0) (= check_~x 0)))))))) (and (or .cse0 (not .cse1) .cse2 .cse3) (or .cse0 (not .cse4) .cse2 .cse3)))) [2020-10-23 20:30:14,645 INFO L270 CegarLoopResult]: At program point L20-1(line 20) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,645 INFO L270 CegarLoopResult]: At program point L26-7(line 26) the Hoare annotation is: (let ((.cse4 (= |check_#in~x| 0)) (.cse1 (<= 1 |check_#in~x|)) (.cse5 ((as const (Array Int Int)) 0)) (.cse6 (<= (+ |check_#in~y| 1) |check_#in~n|))) (let ((.cse0 (not .cse6)) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) .cse5))) (.cse3 (and (= (select |#memory_int| check_~a.base) .cse5) (let ((.cse9 (+ check_~y 1))) (let ((.cse7 (<= .cse9 |check_#in~n|)) (.cse8 (<= .cse9 check_~n))) (or (and .cse6 .cse4 .cse7 .cse8 (= |check_#t~post10| 0) (<= 1 check_~x)) (and .cse6 .cse7 (<= 1 |check_#t~post10|) .cse8 (<= 2 check_~x) .cse1))))))) (and (or .cse0 (not .cse1) .cse2 .cse3) (or .cse0 (not .cse4) .cse2 .cse3)))) [2020-10-23 20:30:14,645 INFO L270 CegarLoopResult]: At program point checkEXIT(lines 16 38) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 1 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)) (= (select |#memory_int| check_~a.base) .cse0))) [2020-10-23 20:30:14,645 INFO L270 CegarLoopResult]: At program point L26-9(line 26) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2020-10-23 20:30:14,646 INFO L270 CegarLoopResult]: At program point L16(lines 16 38) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1 (= check_~x 0)) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1 (<= 1 check_~x)))) [2020-10-23 20:30:14,646 INFO L270 CegarLoopResult]: At program point L26-10(line 26) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (not (= |check_#in~x| 0)) .cse1) (or .cse0 (not (<= 1 |check_#in~x|)) .cse1))) [2020-10-23 20:30:14,646 INFO L270 CegarLoopResult]: At program point L16-1(lines 16 38) the Hoare annotation is: (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= (+ check_~y 1) |check_#in~n|)) (.cse2 (not (= (select |#memory_int| |check_#in~a.base|) ((as const (Array Int Int)) 0))))) (and (or .cse0 (and .cse1 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse2) (or .cse0 (and .cse1 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse2))) [2020-10-23 20:30:14,646 INFO L270 CegarLoopResult]: At program point L26-11(lines 26 27) the Hoare annotation is: (let ((.cse5 ((as const (Array Int Int)) 0)) (.cse6 (+ check_~y 1))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= .cse6 |check_#in~n|)) (.cse2 (<= .cse6 check_~n)) (.cse3 (= (select |#memory_int| check_~a.base) .cse5)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse5)))) (and (or .cse0 (and .cse1 .cse2 .cse3 (<= 2 check_~x)) (not (<= 1 |check_#in~x|)) .cse4) (or .cse0 (and .cse1 .cse2 .cse3 (<= 1 check_~x)) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,646 INFO L270 CegarLoopResult]: At program point L16-2(lines 16 38) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= (+ check_~y 1) |check_#in~n|)) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse3 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (and .cse1 .cse2 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse3) (or .cse0 (and .cse1 .cse2 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse3)))) [2020-10-23 20:30:14,647 INFO L270 CegarLoopResult]: At program point L16-3(lines 16 38) the Hoare annotation is: (let ((.cse4 ((as const (Array Int Int)) 0))) (let ((.cse0 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse1 (<= (+ check_~y 1) |check_#in~n|)) (.cse2 (= (select |#memory_int| check_~a.base) .cse4)) (.cse3 (not (= (select |#memory_int| |check_#in~a.base|) .cse4)))) (and (or .cse0 (and .cse1 .cse2 (= check_~x 0)) (not (= |check_#in~x| 0)) .cse3) (or .cse0 (and .cse1 .cse2 (<= 1 check_~x)) (not (<= 1 |check_#in~x|)) .cse3)))) [2020-10-23 20:30:14,647 INFO L270 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: (let ((.cse6 ((as const (Array Int Int)) 0))) (let ((.cse3 (not (<= (+ |check_#in~y| 1) |check_#in~n|))) (.cse0 (= check_~ax~0 0)) (.cse1 (= check_~ai~0 0)) (.cse2 (= (select |#memory_int| check_~a.base) .cse6)) (.cse4 (not (= (select |#memory_int| |check_#in~a.base|) .cse6)))) (and (or (and .cse0 .cse1 .cse2) .cse3 (not (<= 1 |check_#in~x|)) .cse4) (or .cse3 (and .cse0 (or (let ((.cse5 (+ check_~y 1))) (and (<= .cse5 |check_#in~n|) (<= .cse5 check_~n) (<= 1 check_~x))) (= check_~x 0)) .cse1 .cse2) (not (= |check_#in~x| 0)) .cse4)))) [2020-10-23 20:30:14,647 INFO L270 CegarLoopResult]: At program point L35-1(line 35) the Hoare annotation is: (let ((.cse0 ((as const (Array Int Int)) 0))) (or (and (= check_~ax~0 0) (= check_~ai~0 0) (= (select |#memory_int| check_~a.base) .cse0)) (not (<= (+ |check_#in~y| 1) |check_#in~n|)) (not (<= 1 |check_#in~x|)) (not (= (select |#memory_int| |check_#in~a.base|) .cse0)))) [2020-10-23 20:30:14,647 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 10 12) the Hoare annotation is: true [2020-10-23 20:30:14,647 INFO L270 CegarLoopResult]: At program point L11(line 11) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point L11-1(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point L11-2(line 11) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point L11-4(lines 10 12) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point #Ultimate.meminitENTRY(line -1) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point #Ultimate.meminitEXIT(line -1) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |#Ultimate.meminit_#ptr.base|)) [2020-10-23 20:30:14,648 INFO L270 CegarLoopResult]: At program point #Ultimate.meminitFINAL(line -1) the Hoare annotation is: (= ((as const (Array Int Int)) 0) (select |#memory_int| |#Ultimate.meminit_#ptr.base|)) [2020-10-23 20:30:14,667 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.IllegalArgumentException: unknown symbol (const Int (Array Int Int)) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:394) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator.translateExpression(RCFGBacktranslator.java:1) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpression(ModelTranslationContainer.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ModelTranslationContainer.translateExpressionToString(ModelTranslationContainer.java:89) at de.uni_freiburg.informatik.ultimate.core.lib.results.ProcedureContractResult.getLongDescription(ProcedureContractResult.java:74) at de.uni_freiburg.informatik.ultimate.core.coreplugin.services.ResultService.reportResult(ResultService.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.reportResult(TraceAbstractionStarter.java:707) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.createProcedureContractResults(TraceAbstractionStarter.java:292) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:134) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-10-23 20:30:14,670 INFO L168 Benchmark]: Toolchain (without parser) took 23810.02 ms. Allocated memory was 157.3 MB in the beginning and 327.2 MB in the end (delta: 169.9 MB). Free memory was 134.0 MB in the beginning and 153.1 MB in the end (delta: -19.1 MB). Peak memory consumption was 192.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:30:14,671 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 130.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:30:14,671 INFO L168 Benchmark]: CACSL2BoogieTranslator took 268.38 ms. Allocated memory is still 157.3 MB. Free memory was 133.3 MB in the beginning and 122.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. [2020-10-23 20:30:14,672 INFO L168 Benchmark]: Boogie Preprocessor took 43.51 ms. Allocated memory is still 157.3 MB. Free memory was 122.9 MB in the beginning and 121.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-10-23 20:30:14,673 INFO L168 Benchmark]: RCFGBuilder took 613.15 ms. Allocated memory is still 157.3 MB. Free memory was 121.2 MB in the beginning and 99.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-10-23 20:30:14,674 INFO L168 Benchmark]: TraceAbstraction took 22872.79 ms. Allocated memory was 157.3 MB in the beginning and 327.2 MB in the end (delta: 169.9 MB). Free memory was 98.7 MB in the beginning and 153.1 MB in the end (delta: -54.4 MB). Peak memory consumption was 158.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:30:14,677 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 157.3 MB. Free memory is still 130.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 268.38 ms. Allocated memory is still 157.3 MB. Free memory was 133.3 MB in the beginning and 122.9 MB in the end (delta: 10.4 MB). Peak memory consumption was 10.5 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 43.51 ms. Allocated memory is still 157.3 MB. Free memory was 122.9 MB in the beginning and 121.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 613.15 ms. Allocated memory is still 157.3 MB. Free memory was 121.2 MB in the beginning and 99.1 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * TraceAbstraction took 22872.79 ms. Allocated memory was 157.3 MB in the beginning and 327.2 MB in the end (delta: 169.9 MB). Free memory was 98.7 MB in the beginning and 153.1 MB in the end (delta: -54.4 MB). Peak memory consumption was 158.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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 - ProcedureContractResult [Line: 5]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 7]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not: 1 - ProcedureContractResult [Line: 40]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 10]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - ExceptionOrErrorResult: IllegalArgumentException: unknown symbol (const Int (Array Int Int)) de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: IllegalArgumentException: unknown symbol (const Int (Array Int Int)): de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.boogie.Term2Expression.translate(Term2Expression.java:238) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...