/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-24 02:23:09,938 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:23:09,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:23:09,989 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-24 02:23:09,990 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-24 02:23:09,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-24 02:23:09,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-24 02:23:09,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-24 02:23:09,998 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-24 02:23:10,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-24 02:23:10,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-24 02:23:10,003 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-24 02:23:10,003 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:23:10,005 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:23:10,006 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:23:10,008 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:23:10,009 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:23:10,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:23:10,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:23:10,024 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:23:10,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:23:10,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:23:10,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:23:10,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:23:10,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-24 02:23:10,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-24 02:23:10,048 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-24 02:23:10,049 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-24 02:23:10,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-24 02:23:10,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-24 02:23:10,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-24 02:23:10,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-24 02:23:10,057 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-24 02:23:10,059 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-24 02:23:10,060 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-24 02:23:10,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-24 02:23:10,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-24 02:23:10,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-24 02:23:10,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:23:10,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:23:10,065 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:23:10,066 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:23:10,101 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:23:10,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:23:10,107 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:23:10,108 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:23:10,108 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:23:10,108 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:23:10,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:23:10,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:23:10,109 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:23:10,109 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:23:10,110 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:23:10,110 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:23:10,111 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:23:10,111 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:23:10,111 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:23:10,111 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:23:10,111 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:23:10,112 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:23:10,112 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:23:10,112 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:23:10,112 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:23:10,112 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:23:10,113 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:23:10,529 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:23:10,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:23:10,566 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:23:10,568 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:23:10,569 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:23:10,570 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-10-24 02:23:10,661 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd623a19/12a2d1f823f842c3a8e22f2160074dac/FLAG4a7f023fd [2020-10-24 02:23:11,307 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:23:11,308 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/sanfoundry_24-1.i [2020-10-24 02:23:11,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd623a19/12a2d1f823f842c3a8e22f2160074dac/FLAG4a7f023fd [2020-10-24 02:23:11,633 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ecd623a19/12a2d1f823f842c3a8e22f2160074dac [2020-10-24 02:23:11,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:23:11,644 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:23:11,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:23:11,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:23:11,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:23:11,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@363268dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11, skipping insertion in model container [2020-10-24 02:23:11,664 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,676 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:23:11,693 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:23:11,863 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:23:11,873 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:23:11,897 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:23:11,915 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:23:11,916 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11 WrapperNode [2020-10-24 02:23:11,916 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:23:11,917 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:23:11,917 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:23:11,917 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:23:11,930 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,930 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,947 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,954 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,956 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (1/1) ... [2020-10-24 02:23:11,958 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:23:11,960 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:23:11,960 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:23:11,960 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:23:11,961 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (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 [2020-10-24 02:23:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:23:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:23:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:23:12,054 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-24 02:23:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure printEven [2020-10-24 02:23:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure printOdd [2020-10-24 02:23:12,055 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:23:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:23:12,055 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:23:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_perror_fail [2020-10-24 02:23:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure __assert [2020-10-24 02:23:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:23:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:23:12,056 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:23:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-24 02:23:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure printEven [2020-10-24 02:23:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure printOdd [2020-10-24 02:23:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:23:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:23:12,057 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:23:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:23:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:23:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:23:12,058 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:23:12,684 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:23:12,685 INFO L298 CfgBuilder]: Removed 3 assume(true) statements. [2020-10-24 02:23:12,687 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:12 BoogieIcfgContainer [2020-10-24 02:23:12,687 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:23:12,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:23:12,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:23:12,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:23:12,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:23:11" (1/3) ... [2020-10-24 02:23:12,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a78a0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:23:12, skipping insertion in model container [2020-10-24 02:23:12,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:23:11" (2/3) ... [2020-10-24 02:23:12,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a78a0f8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:23:12, skipping insertion in model container [2020-10-24 02:23:12,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:23:12" (3/3) ... [2020-10-24 02:23:12,700 INFO L111 eAbstractionObserver]: Analyzing ICFG sanfoundry_24-1.i [2020-10-24 02:23:12,715 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:23:12,721 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:23:12,736 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:23:12,775 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:23:12,775 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:23:12,775 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:23:12,775 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:23:12,775 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:23:12,775 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:23:12,776 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:23:12,776 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:23:12,800 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2020-10-24 02:23:12,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-24 02:23:12,816 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:23:12,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:23:12,818 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:23:12,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:23:12,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1625686649, now seen corresponding path program 1 times [2020-10-24 02:23:12,841 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:23:12,842 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1816276634] [2020-10-24 02:23:12,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:23:13,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:13,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:23:13,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:13,112 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:23:13,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1816276634] [2020-10-24 02:23:13,115 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:23:13,116 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-24 02:23:13,116 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [545637961] [2020-10-24 02:23:13,122 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-24 02:23:13,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:23:13,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-24 02:23:13,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:23:13,141 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 3 states. [2020-10-24 02:23:13,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:23:13,339 INFO L93 Difference]: Finished difference Result 122 states and 145 transitions. [2020-10-24 02:23:13,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-24 02:23:13,341 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 32 [2020-10-24 02:23:13,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:23:13,352 INFO L225 Difference]: With dead ends: 122 [2020-10-24 02:23:13,352 INFO L226 Difference]: Without dead ends: 64 [2020-10-24 02:23:13,357 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-24 02:23:13,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-10-24 02:23:13,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-10-24 02:23:13,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-10-24 02:23:13,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 69 transitions. [2020-10-24 02:23:13,424 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 69 transitions. Word has length 32 [2020-10-24 02:23:13,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:23:13,425 INFO L481 AbstractCegarLoop]: Abstraction has 64 states and 69 transitions. [2020-10-24 02:23:13,425 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-24 02:23:13,425 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 69 transitions. [2020-10-24 02:23:13,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-10-24 02:23:13,439 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:23:13,440 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:23:13,440 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:23:13,440 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:23:13,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:23:13,442 INFO L82 PathProgramCache]: Analyzing trace with hash -2072481362, now seen corresponding path program 1 times [2020-10-24 02:23:13,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:23:13,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144740147] [2020-10-24 02:23:13,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:23:13,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:13,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:23:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:13,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:23:13,607 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144740147] [2020-10-24 02:23:13,607 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:23:13,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-24 02:23:13,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436565926] [2020-10-24 02:23:13,609 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-24 02:23:13,609 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:23:13,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-24 02:23:13,610 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:23:13,611 INFO L87 Difference]: Start difference. First operand 64 states and 69 transitions. Second operand 6 states. [2020-10-24 02:23:13,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:23:13,854 INFO L93 Difference]: Finished difference Result 133 states and 149 transitions. [2020-10-24 02:23:13,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-24 02:23:13,854 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2020-10-24 02:23:13,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:23:13,857 INFO L225 Difference]: With dead ends: 133 [2020-10-24 02:23:13,857 INFO L226 Difference]: Without dead ends: 90 [2020-10-24 02:23:13,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-24 02:23:13,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2020-10-24 02:23:13,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 66. [2020-10-24 02:23:13,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2020-10-24 02:23:13,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 71 transitions. [2020-10-24 02:23:13,878 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 71 transitions. Word has length 32 [2020-10-24 02:23:13,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:23:13,878 INFO L481 AbstractCegarLoop]: Abstraction has 66 states and 71 transitions. [2020-10-24 02:23:13,878 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-24 02:23:13,878 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 71 transitions. [2020-10-24 02:23:13,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2020-10-24 02:23:13,880 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:23:13,880 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:23:13,880 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:23:13,880 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:23:13,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:23:13,881 INFO L82 PathProgramCache]: Analyzing trace with hash 1640974461, now seen corresponding path program 1 times [2020-10-24 02:23:13,881 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:23:13,882 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389735189] [2020-10-24 02:23:13,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:23:13,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:14,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:23:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:23:14,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389735189] [2020-10-24 02:23:14,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:23:14,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-24 02:23:14,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315319333] [2020-10-24 02:23:14,252 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:23:14,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:23:14,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:23:14,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:23:14,254 INFO L87 Difference]: Start difference. First operand 66 states and 71 transitions. Second operand 10 states. [2020-10-24 02:23:14,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:23:14,765 INFO L93 Difference]: Finished difference Result 76 states and 80 transitions. [2020-10-24 02:23:14,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:23:14,765 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 39 [2020-10-24 02:23:14,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:23:14,767 INFO L225 Difference]: With dead ends: 76 [2020-10-24 02:23:14,767 INFO L226 Difference]: Without dead ends: 72 [2020-10-24 02:23:14,768 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-24 02:23:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-10-24 02:23:14,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 70. [2020-10-24 02:23:14,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2020-10-24 02:23:14,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 74 transitions. [2020-10-24 02:23:14,793 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 74 transitions. Word has length 39 [2020-10-24 02:23:14,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:23:14,794 INFO L481 AbstractCegarLoop]: Abstraction has 70 states and 74 transitions. [2020-10-24 02:23:14,794 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:23:14,794 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 74 transitions. [2020-10-24 02:23:14,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-10-24 02:23:14,799 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:23:14,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-24 02:23:14,799 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:23:14,800 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:23:14,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:23:14,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1527983, now seen corresponding path program 1 times [2020-10-24 02:23:14,801 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:23:14,801 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [653405285] [2020-10-24 02:23:14,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:23:14,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:23:15,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:23:15,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-24 02:23:15,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [653405285] [2020-10-24 02:23:15,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:23:15,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-24 02:23:15,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611263744] [2020-10-24 02:23:15,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:23:15,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:23:15,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:23:15,104 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:23:15,104 INFO L87 Difference]: Start difference. First operand 70 states and 74 transitions. Second operand 10 states. [2020-10-24 02:23:15,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:23:15,591 INFO L93 Difference]: Finished difference Result 72 states and 76 transitions. [2020-10-24 02:23:15,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-24 02:23:15,592 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 48 [2020-10-24 02:23:15,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:23:15,593 INFO L225 Difference]: With dead ends: 72 [2020-10-24 02:23:15,593 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:23:15,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=50, Invalid=222, Unknown=0, NotChecked=0, Total=272 [2020-10-24 02:23:15,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:23:15,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:23:15,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:23:15,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:23:15,595 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-10-24 02:23:15,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:23:15,595 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:23:15,596 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:23:15,596 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:23:15,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:23:15,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:23:15,600 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:23:16,172 INFO L277 CegarLoopResult]: At program point reach_errorEXIT(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,172 INFO L277 CegarLoopResult]: At program point reach_errorENTRY(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,172 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,172 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,172 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,173 INFO L277 CegarLoopResult]: At program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,173 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,173 INFO L277 CegarLoopResult]: At program point L-1-1(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,173 INFO L277 CegarLoopResult]: At program point ULTIMATE.initFINAL(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,173 INFO L277 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,173 INFO L277 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,174 INFO L277 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,174 INFO L270 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string0.offset| |old(#t~string0.offset)|) (= |old(#length)| |#length|) (= |#t~string1.base| |old(#t~string1.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string0.base| |old(#t~string0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|) (= |#t~string1.offset| |old(#t~string1.offset)|)) [2020-10-24 02:23:16,174 INFO L277 CegarLoopResult]: At program point L12-3(line 12) the Hoare annotation is: true [2020-10-24 02:23:16,174 INFO L277 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,174 INFO L277 CegarLoopResult]: At program point printOddENTRY(lines 18 20) the Hoare annotation is: true [2020-10-24 02:23:16,175 INFO L270 CegarLoopResult]: At program point printOddFINAL(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2020-10-24 02:23:16,175 INFO L270 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2020-10-24 02:23:16,175 INFO L270 CegarLoopResult]: At program point printOddEXIT(lines 18 20) the Hoare annotation is: (or (not (let ((.cse0 (+ |printOdd_#in~i| 1))) (<= .cse0 (* 2 (div .cse0 2))))) (not (= printOdd_~i (* (div printOdd_~i 2) 2)))) [2020-10-24 02:23:16,175 INFO L277 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,175 INFO L277 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,176 INFO L277 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,176 INFO L277 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-10-24 02:23:16,176 INFO L277 CegarLoopResult]: At program point L39-6(lines 39 45) the Hoare annotation is: true [2020-10-24 02:23:16,176 INFO L277 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: true [2020-10-24 02:23:16,176 INFO L277 CegarLoopResult]: At program point mainEXIT(lines 21 47) the Hoare annotation is: true [2020-10-24 02:23:16,176 INFO L277 CegarLoopResult]: At program point L27-3(lines 27 30) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L27-4(line 27) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L27-5(line 27) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L27-6(lines 27 30) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L23-2(line 23) the Hoare annotation is: true [2020-10-24 02:23:16,177 INFO L277 CegarLoopResult]: At program point L27-7(lines 27 30) the Hoare annotation is: true [2020-10-24 02:23:16,178 INFO L270 CegarLoopResult]: At program point L36(line 36) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2)))) [2020-10-24 02:23:16,178 INFO L270 CegarLoopResult]: At program point L36-1(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-24 02:23:16,178 INFO L270 CegarLoopResult]: At program point L36-2(line 36) the Hoare annotation is: (and (<= |main_#t~mem8| (* 2 (div |main_#t~mem8| 2))) (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-24 02:23:16,178 INFO L277 CegarLoopResult]: At program point L32-2(lines 32 38) the Hoare annotation is: true [2020-10-24 02:23:16,179 INFO L277 CegarLoopResult]: At program point L32-3(line 32) the Hoare annotation is: true [2020-10-24 02:23:16,179 INFO L277 CegarLoopResult]: At program point L32-4(line 32) the Hoare annotation is: true [2020-10-24 02:23:16,179 INFO L277 CegarLoopResult]: At program point L32-5(lines 32 38) the Hoare annotation is: true [2020-10-24 02:23:16,179 INFO L277 CegarLoopResult]: At program point L32-6(lines 32 38) the Hoare annotation is: true [2020-10-24 02:23:16,179 INFO L277 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: true [2020-10-24 02:23:16,179 INFO L270 CegarLoopResult]: At program point L41-1(lines 41 44) the Hoare annotation is: (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|))) [2020-10-24 02:23:16,180 INFO L270 CegarLoopResult]: At program point L41-2(line 41) the Hoare annotation is: (let ((.cse1 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (let ((.cse0 (+ .cse1 1))) (<= .cse0 (* 2 (div .cse0 2)))) (= |main_#t~mem10| .cse1))) [2020-10-24 02:23:16,180 INFO L270 CegarLoopResult]: At program point L41-4(line 41) the Hoare annotation is: (= |main_#t~mem10| (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|))) [2020-10-24 02:23:16,180 INFO L277 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-10-24 02:23:16,180 INFO L277 CegarLoopResult]: At program point L29-1(line 29) the Hoare annotation is: true [2020-10-24 02:23:16,180 INFO L277 CegarLoopResult]: At program point L29-2(line 29) the Hoare annotation is: true [2020-10-24 02:23:16,180 INFO L277 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-10-24 02:23:16,181 INFO L277 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-10-24 02:23:16,181 INFO L277 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-10-24 02:23:16,181 INFO L277 CegarLoopResult]: At program point mainFINAL(lines 21 47) the Hoare annotation is: true [2020-10-24 02:23:16,181 INFO L277 CegarLoopResult]: At program point L34(line 34) the Hoare annotation is: true [2020-10-24 02:23:16,181 INFO L270 CegarLoopResult]: At program point L34-1(lines 34 37) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) [2020-10-24 02:23:16,181 INFO L270 CegarLoopResult]: At program point L34-2(line 34) the Hoare annotation is: (let ((.cse0 (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)))) (and (or (= .cse0 |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) (<= .cse0 (* 2 (div .cse0 2))))) [2020-10-24 02:23:16,182 INFO L270 CegarLoopResult]: At program point L34-4(line 34) the Hoare annotation is: (or (= (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) |main_#t~mem7|) (not (= (* 2 (div |main_#t~mem7| 2)) |main_#t~mem7|))) [2020-10-24 02:23:16,182 INFO L270 CegarLoopResult]: At program point mainENTRY(lines 21 47) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2020-10-24 02:23:16,182 INFO L270 CegarLoopResult]: At program point L43(line 43) the Hoare annotation is: (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) [2020-10-24 02:23:16,182 INFO L270 CegarLoopResult]: At program point L43-1(line 43) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) [2020-10-24 02:23:16,183 INFO L270 CegarLoopResult]: At program point L43-2(line 43) the Hoare annotation is: (and (let ((.cse0 (+ (select (select |#memory_int| |main_~#array~0.base|) (+ (* main_~i~0 4) |main_~#array~0.offset|)) 1))) (<= .cse0 (* 2 (div .cse0 2)))) (let ((.cse1 (+ |main_#t~mem11| 1))) (<= .cse1 (* 2 (div .cse1 2))))) [2020-10-24 02:23:16,183 INFO L277 CegarLoopResult]: At program point L39-2(lines 39 45) the Hoare annotation is: true [2020-10-24 02:23:16,183 INFO L277 CegarLoopResult]: At program point L39-3(line 39) the Hoare annotation is: true [2020-10-24 02:23:16,183 INFO L277 CegarLoopResult]: At program point L39-4(line 39) the Hoare annotation is: true [2020-10-24 02:23:16,183 INFO L277 CegarLoopResult]: At program point L39-5(lines 39 45) the Hoare annotation is: true [2020-10-24 02:23:16,183 INFO L270 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2020-10-24 02:23:16,184 INFO L270 CegarLoopResult]: At program point printEvenEXIT(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2020-10-24 02:23:16,184 INFO L277 CegarLoopResult]: At program point printEvenENTRY(lines 15 17) the Hoare annotation is: true [2020-10-24 02:23:16,184 INFO L270 CegarLoopResult]: At program point printEvenFINAL(lines 15 17) the Hoare annotation is: (or (<= printEven_~i (* 2 (div printEven_~i 2))) (not (<= |printEven_#in~i| (* 2 (div |printEven_#in~i| 2))))) [2020-10-24 02:23:16,184 INFO L277 CegarLoopResult]: At program point __VERIFIER_assertENTRY(line 14) the Hoare annotation is: true [2020-10-24 02:23:16,184 INFO L270 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:23:16,185 INFO L270 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:23:16,185 INFO L270 CegarLoopResult]: At program point L14-2(line 14) the Hoare annotation is: (= |__VERIFIER_assert_#in~cond| 0) [2020-10-24 02:23:16,185 INFO L270 CegarLoopResult]: At program point L14-4(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:23:16,185 INFO L270 CegarLoopResult]: At program point __VERIFIER_assertEXIT(line 14) the Hoare annotation is: (or (= |__VERIFIER_assert_#in~cond| 0) (not (= __VERIFIER_assert_~cond 0))) [2020-10-24 02:23:16,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 02:23:16 BoogieIcfgContainer [2020-10-24 02:23:16,209 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-24 02:23:16,214 INFO L168 Benchmark]: Toolchain (without parser) took 4572.09 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 131.9 MB in the beginning and 116.3 MB in the end (delta: 15.6 MB). Peak memory consumption was 101.7 MB. Max. memory is 8.0 GB. [2020-10-24 02:23:16,218 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 103.0 MB in the beginning and 102.9 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-24 02:23:16,219 INFO L168 Benchmark]: CACSL2BoogieTranslator took 267.86 ms. Allocated memory is still 155.2 MB. Free memory was 131.3 MB in the beginning and 121.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-24 02:23:16,222 INFO L168 Benchmark]: Boogie Preprocessor took 41.54 ms. Allocated memory is still 155.2 MB. Free memory was 121.8 MB in the beginning and 120.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-24 02:23:16,223 INFO L168 Benchmark]: RCFGBuilder took 727.66 ms. Allocated memory is still 155.2 MB. Free memory was 120.2 MB in the beginning and 134.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. [2020-10-24 02:23:16,227 INFO L168 Benchmark]: TraceAbstraction took 3517.69 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 134.4 MB in the beginning and 116.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. [2020-10-24 02:23:16,232 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 125.8 MB. Free memory was 103.0 MB in the beginning and 102.9 MB in the end (delta: 125.8 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 267.86 ms. Allocated memory is still 155.2 MB. Free memory was 131.3 MB in the beginning and 121.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 41.54 ms. Allocated memory is still 155.2 MB. Free memory was 121.8 MB in the beginning and 120.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 727.66 ms. Allocated memory is still 155.2 MB. Free memory was 120.2 MB in the beginning and 134.9 MB in the end (delta: -14.7 MB). Peak memory consumption was 19.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3517.69 ms. Allocated memory was 155.2 MB in the beginning and 186.6 MB in the end (delta: 31.5 MB). Free memory was 134.4 MB in the beginning and 116.3 MB in the end (delta: 18.1 MB). Peak memory consumption was 103.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 12]: Procedure Contract for reach_error Derived contract for procedure reach_error: 1 - ProcedureContractResult [Line: 18]: Procedure Contract for printOdd Derived contract for procedure printOdd: !(\old(i) + 1 <= 2 * ((\old(i) + 1) / 2)) || !(i == i / 2 * 2) - ProcedureContractResult [Line: 15]: Procedure Contract for printEven Derived contract for procedure printEven: i <= 2 * (i / 2) || !(\old(i) <= 2 * (\old(i) / 2)) - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 14]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: \old(cond) == 0 || !(cond == 0) - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.8s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 248 SDtfs, 96 SDslu, 722 SDs, 0 SdLazy, 610 SolverSat, 46 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 26 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 75 LocationsWithAnnotation, 139 PreInvPairs, 186 NumberOfFragments, 558 HoareAnnotationTreeSize, 139 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 75 FomulaSimplificationsInter, 429 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 147 ConstructedInterpolants, 0 QuantifiedInterpolants, 17184 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...