/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/ldv-regression/nested_structure-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:04:28,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:04:28,648 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:04:28,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:04:28,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:04:28,698 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:04:28,699 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:04:28,704 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:04:28,706 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:04:28,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:04:28,713 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:04:28,718 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:04:28,724 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:04:28,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:04:28,729 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:04:28,741 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:04:28,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:04:28,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:04:28,774 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:04:28,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:04:28,777 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:04:28,800 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:04:28,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:04:28,806 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:04:28,806 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:04:28,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:04:28,807 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:04:28,807 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:04:28,807 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:04:28,807 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:04:28,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:04:28,809 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:04:28,809 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:04:28,809 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:04:28,810 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:04:28,810 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:04:28,810 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:04:28,810 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:04:28,810 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:04:28,811 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:04:28,811 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:04:28,811 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:04:28,811 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:04:28,812 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:04:29,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:04:29,289 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:04:29,293 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:04:29,294 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:04:29,295 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:04:29,296 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/nested_structure-1.i [2021-02-23 23:04:29,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0892bb7b/232e26b7f20c4eaa8988177088aed759/FLAG640fdf8af [2021-02-23 23:04:30,092 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:04:30,093 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-1.i [2021-02-23 23:04:30,099 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0892bb7b/232e26b7f20c4eaa8988177088aed759/FLAG640fdf8af [2021-02-23 23:04:30,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0892bb7b/232e26b7f20c4eaa8988177088aed759 [2021-02-23 23:04:30,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:04:30,513 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:04:30,518 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:30,518 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:04:30,522 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:04:30,523 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cd6d507 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30, skipping insertion in model container [2021-02-23 23:04:30,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,535 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:04:30,553 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:04:30,735 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-1.i[303,316] [2021-02-23 23:04:30,756 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:30,767 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:04:30,779 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/nested_structure-1.i[303,316] [2021-02-23 23:04:30,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:04:30,802 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:04:30,803 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30 WrapperNode [2021-02-23 23:04:30,803 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:04:30,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:04:30,805 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:04:30,805 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:04:30,818 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,818 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,826 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,827 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,836 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,838 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,840 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (1/1) ... [2021-02-23 23:04:30,842 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:04:30,843 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:04:30,844 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:04:30,844 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:04:30,845 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (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 [2021-02-23 23:04:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:04:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:04:30,952 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:04:30,953 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 23:04:30,953 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:04:30,953 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:04:30,954 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:04:30,954 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:04:30,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:04:30,954 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 23:04:30,955 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:04:30,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:04:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-02-23 23:04:30,956 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-02-23 23:04:30,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:04:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:04:30,958 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:04:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:04:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:04:30,959 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-02-23 23:04:31,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:04:31,301 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 23:04:31,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:31 BoogieIcfgContainer [2021-02-23 23:04:31,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:04:31,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:04:31,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:04:31,310 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:04:31,311 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:04:30" (1/3) ... [2021-02-23 23:04:31,317 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebdf794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:31, skipping insertion in model container [2021-02-23 23:04:31,317 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:04:30" (2/3) ... [2021-02-23 23:04:31,318 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ebdf794 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:04:31, skipping insertion in model container [2021-02-23 23:04:31,318 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:04:31" (3/3) ... [2021-02-23 23:04:31,322 INFO L111 eAbstractionObserver]: Analyzing ICFG nested_structure-1.i [2021-02-23 23:04:31,338 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:04:31,354 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:04:31,402 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:04:31,456 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:04:31,456 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:04:31,457 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:04:31,457 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:04:31,457 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:04:31,458 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:04:31,458 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:04:31,458 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:04:31,488 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states. [2021-02-23 23:04:31,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-02-23 23:04:31,505 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:04:31,506 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] [2021-02-23 23:04:31,507 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:04:31,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:04:31,526 INFO L82 PathProgramCache]: Analyzing trace with hash -1023130424, now seen corresponding path program 1 times [2021-02-23 23:04:31,540 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:04:31,541 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230688404] [2021-02-23 23:04:31,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:04:31,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:32,199 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,200 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:32,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,213 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:04:32,246 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,250 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-02-23 23:04:32,275 WARN L141 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-02-23 23:04:32,278 WARN L147 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size 18 [2021-02-23 23:04:32,309 WARN L141 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size [2021-02-23 23:04:32,311 WARN L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-02-23 23:04:32,337 WARN L141 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size [2021-02-23 23:04:32,340 WARN L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-02-23 23:04:32,372 WARN L141 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size [2021-02-23 23:04:32,375 WARN L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-02-23 23:04:32,400 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,403 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-02-23 23:04:32,444 WARN L141 QuantifierPusher]: treesize reduction 5, result has 92.9 percent of original size [2021-02-23 23:04:32,448 WARN L147 QuantifierPusher]: treesize reduction 5, result has 92.9 percent of original size 65 [2021-02-23 23:04:32,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,505 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-02-23 23:04:32,542 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,545 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-02-23 23:04:32,571 WARN L141 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size [2021-02-23 23:04:32,573 WARN L147 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size 23 [2021-02-23 23:04:32,604 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:04:32,628 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:04:32,650 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:32,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:04:32,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:04:32,719 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:04:32,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:04:32,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:04:32,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230688404] [2021-02-23 23:04:32,734 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:04:32,734 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-02-23 23:04:32,735 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663764924] [2021-02-23 23:04:32,741 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-02-23 23:04:32,741 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:04:32,757 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-02-23 23:04:32,758 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=207, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:04:32,761 INFO L87 Difference]: Start difference. First operand 49 states. Second operand 16 states. [2021-02-23 23:04:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:04:33,684 INFO L93 Difference]: Finished difference Result 63 states and 62 transitions. [2021-02-23 23:04:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-02-23 23:04:33,687 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 31 [2021-02-23 23:04:33,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:04:33,694 INFO L225 Difference]: With dead ends: 63 [2021-02-23 23:04:33,694 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:04:33,699 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=168, Invalid=702, Unknown=0, NotChecked=0, Total=870 [2021-02-23 23:04:33,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:04:33,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:04:33,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:04:33,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:04:33,728 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-02-23 23:04:33,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:04:33,728 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:04:33,728 INFO L481 AbstractCegarLoop]: Interpolant automaton has 16 states. [2021-02-23 23:04:33,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:04:33,729 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:04:33,729 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:04:33,731 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:04:34,332 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 23:04:34,333 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 23:04:34,333 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 23:04:34,333 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 23:04:34,333 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 23:04:34,334 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,334 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 23:04:34,334 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,334 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 23:04:34,334 INFO L185 CegarLoopUtils]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |#t~string5.base| |old(#t~string5.base)|) (= |#t~string5.offset| |old(#t~string5.offset)|) (= |old(#length)| |#length|) (= |#t~string6.base| |old(#t~string6.base)|) (= |#t~string6.offset| |old(#t~string6.offset)|) (= |#t~string4.base| |old(#t~string4.base)|) (= |#NULL.base| |old(#NULL.base)|) (= |#t~string4.offset| |old(#t~string4.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2021-02-23 23:04:34,335 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 23:04:34,335 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 23:04:34,335 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,335 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 11) the Hoare annotation is: true [2021-02-23 23:04:34,336 INFO L192 CegarLoopUtils]: At program point L11(line 11) the Hoare annotation is: true [2021-02-23 23:04:34,336 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 9 12) the Hoare annotation is: true [2021-02-23 23:04:34,336 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 9 12) the Hoare annotation is: true [2021-02-23 23:04:34,336 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 9 12) the Hoare annotation is: true [2021-02-23 23:04:34,336 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,336 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,337 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,337 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 23:04:34,337 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,337 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (let ((.cse4 (select |#memory_$Pointer$.base| |main_#t~mem7.base|)) (.cse1 (+ |main_~#good~0.offset| 4))) (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse3 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse1)) (.cse2 (select .cse4 (+ |main_#t~mem7.offset| 4)))) (and (= |main_#t~mem7.offset| 0) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse1) 0) (= |main_~#inner~0.offset| 0) (not (= |main_~#good~0.base| .cse2)) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) (select |#memory_$Pointer$.offset| .cse3)) (= (select |#memory_$Pointer$.base| .cse3) .cse4) (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (not (= .cse3 .cse2)) (not (= |main_~#im~0.base| |main_~#inner~0.base|))))) [2021-02-23 23:04:34,338 INFO L185 CegarLoopUtils]: At program point L31-1(line 31) the Hoare annotation is: (let ((.cse1 (+ |main_~#good~0.offset| 4))) (let ((.cse5 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse1))) (let ((.cse2 (select |#memory_$Pointer$.offset| .cse5)) (.cse3 (select |#memory_$Pointer$.base| .cse5)) (.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4))) (.cse4 (select |#memory_$Pointer$.base| |main_#t~mem7.base|))) (and (= |main_#t~mem7.offset| 0) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse1) 0) (= |main_~#inner~0.offset| 0) (= |main_#t~mem8.offset| (select .cse2 4)) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#memory_$Pointer$.offset| |main_#t~mem7.base|) .cse2) (= .cse3 .cse4) (= |main_#t~mem8.base| (select .cse3 4)) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem8.base|)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= (select |#valid| |main_~#im~0.base|) 1) (not (= .cse5 (select .cse4 (+ |main_#t~mem7.offset| 4)))) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))))) [2021-02-23 23:04:34,338 INFO L185 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (= |main_~#inner~0.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))) [2021-02-23 23:04:34,339 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse3 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse3) 4)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse3) 4))) (and (= (select (select |#memory_int| .cse0) .cse1) 4) (= |main_#t~mem8.base| .cse0) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem8.base|)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem8.offset| .cse1) (not (= |main_#t~mem8.base| .cse3)) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,339 INFO L185 CegarLoopUtils]: At program point L29-1(line 29) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (= |main_~#inner~0.offset| 0) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|))) [2021-02-23 23:04:34,339 INFO L185 CegarLoopUtils]: At program point L31-3(line 31) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse3 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse3) 4)) (.cse1 (select (select |#memory_$Pointer$.offset| .cse3) 4))) (and (= (select (select |#memory_int| .cse0) .cse1) 4) (= |main_#t~mem8.base| .cse0) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| |main_#t~mem8.base|)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= |main_#t~mem8.offset| .cse1) (not (= |main_#t~mem8.base| .cse3)) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,339 INFO L185 CegarLoopUtils]: At program point L29-2(line 29) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2021-02-23 23:04:34,340 INFO L185 CegarLoopUtils]: At program point L29-3(line 29) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,340 INFO L185 CegarLoopUtils]: At program point L29-4(line 29) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,340 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 26 34) the Hoare annotation is: true [2021-02-23 23:04:34,340 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 26 34) the Hoare annotation is: true [2021-02-23 23:04:34,341 INFO L185 CegarLoopUtils]: At program point L32(line 32) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,341 INFO L185 CegarLoopUtils]: At program point L32-1(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (let ((.cse2 (+ |main_#t~mem9.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem9.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem9.base|) .cse2))) 4) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 0 |main_#t~mem9.offset|))))) [2021-02-23 23:04:34,341 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 0 |main_~#im~0.offset|) (or (= 3 (select (select |#memory_int| |main_~#good~0.base|) |main_~#good~0.offset|)) (not (= |main_~#good~0.base| .cse0))) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2021-02-23 23:04:34,342 INFO L185 CegarLoopUtils]: At program point L32-2(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| |main_#t~mem10.base|) |main_#t~mem10.offset|) 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (let ((.cse2 (+ |main_#t~mem9.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem9.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem9.base|) .cse2))) 4) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 0 |main_#t~mem9.offset|))))) [2021-02-23 23:04:34,343 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 26 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-23 23:04:34,343 INFO L185 CegarLoopUtils]: At program point L30-1(line 30) the Hoare annotation is: (let ((.cse0 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse0 |main_~#inner~0.base|)) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse0) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))) [2021-02-23 23:04:34,343 INFO L185 CegarLoopUtils]: At program point L32-3(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| |main_#t~mem10.base|) |main_#t~mem10.offset|) 4) (= |main_#t~mem11| 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (let ((.cse2 (+ |main_#t~mem9.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem9.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem9.base|) .cse2))) 4) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 0 |main_#t~mem9.offset|))))) [2021-02-23 23:04:34,343 INFO L185 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= (select |#valid| |main_~#im~0.base|) 1)) [2021-02-23 23:04:34,344 INFO L185 CegarLoopUtils]: At program point L30-2(line 30) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4)) (.cse2 (select (select |#memory_$Pointer$.base| |main_~#inner~0.base|) (+ |main_~#inner~0.offset| 4)))) (and (not (= .cse0 .cse1)) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse2)) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (not (= .cse2 |main_~#inner~0.base|)) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= |main_~#inner~0.offset| 0) (= (select (select |#memory_int| .cse2) 0) 3) (= (select |#valid| |main_~#im~0.base|) 1) (not (= |main_~#im~0.base| |main_~#inner~0.base|)))))) [2021-02-23 23:04:34,344 INFO L185 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: (and (= 0 |main_~#im~0.offset|) (= 3 (select (select |#memory_int| |main_~#im~0.base|) |main_~#im~0.offset|)) (= (select |#valid| |main_~#im~0.base|) 1)) [2021-02-23 23:04:34,344 INFO L185 CegarLoopUtils]: At program point L32-5(line 32) the Hoare annotation is: false [2021-02-23 23:04:34,344 INFO L185 CegarLoopUtils]: At program point L30-3(line 30) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,345 INFO L185 CegarLoopUtils]: At program point L32-6(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| |main_#t~mem10.base|) |main_#t~mem10.offset|) 4) (= |main_#t~mem11| 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (let ((.cse2 (+ |main_#t~mem9.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem9.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem9.base|) .cse2))) 4) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 0 |main_#t~mem9.offset|))))) [2021-02-23 23:04:34,345 INFO L185 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,345 INFO L185 CegarLoopUtils]: At program point L30-4(line 30) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,346 INFO L185 CegarLoopUtils]: At program point L32-7(line 32) the Hoare annotation is: (let ((.cse3 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse3))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| |main_#t~mem10.base|) |main_#t~mem10.offset|) 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (let ((.cse2 (+ |main_#t~mem9.offset| 4))) (select (select |#memory_int| (select (select |#memory_$Pointer$.base| |main_#t~mem9.base|) .cse2)) (select (select |#memory_$Pointer$.offset| |main_#t~mem9.base|) .cse2))) 4) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse3) 0) (= (select |#valid| |main_~#im~0.base|) 1) (= 0 |main_#t~mem9.offset|))))) [2021-02-23 23:04:34,346 INFO L185 CegarLoopUtils]: At program point L28-3(line 28) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0))))) [2021-02-23 23:04:34,346 INFO L185 CegarLoopUtils]: At program point L32-8(line 32) the Hoare annotation is: (let ((.cse2 (+ |main_~#good~0.offset| 4))) (let ((.cse1 (select (select |#memory_$Pointer$.base| |main_~#good~0.base|) .cse2))) (let ((.cse0 (select (select |#memory_$Pointer$.base| .cse1) 4))) (and (not (= .cse0 .cse1)) (= (select (select |#memory_int| |main_#t~mem10.base|) |main_#t~mem10.offset|) 4) (= (select (select |#memory_int| .cse0) (select (select |#memory_$Pointer$.offset| .cse1) 4)) 4) (= 0 |main_~#im~0.offset|) (not (= |main_~#good~0.base| .cse0)) (= (select (select |#memory_$Pointer$.offset| |main_~#good~0.base|) .cse2) 0) (= (select |#valid| |main_~#im~0.base|) 1))))) [2021-02-23 23:04:34,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:04:34 BoogieIcfgContainer [2021-02-23 23:04:34,358 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:04:34,359 INFO L168 Benchmark]: Toolchain (without parser) took 3857.48 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 126.9 MB in the beginning and 84.9 MB in the end (delta: 41.9 MB). Peak memory consumption was 91.5 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,360 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:04:34,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.09 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,362 INFO L168 Benchmark]: Boogie Preprocessor took 38.03 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,363 INFO L168 Benchmark]: RCFGBuilder took 459.98 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 97.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,363 INFO L168 Benchmark]: TraceAbstraction took 3052.68 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 97.3 MB in the beginning and 84.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:04:34,367 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 151.0 MB. Free memory is still 126.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 286.09 ms. Allocated memory is still 151.0 MB. Free memory was 125.9 MB in the beginning and 116.4 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 38.03 ms. Allocated memory is still 151.0 MB. Free memory was 116.4 MB in the beginning and 114.8 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 459.98 ms. Allocated memory is still 151.0 MB. Free memory was 114.8 MB in the beginning and 97.5 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.8 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3052.68 ms. Allocated memory was 151.0 MB in the beginning and 182.5 MB in the end (delta: 31.5 MB). Free memory was 97.3 MB in the beginning and 84.9 MB in the end (delta: 12.3 MB). Peak memory consumption was 62.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 11]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - ProcedureContractResult [Line: 9]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 26]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.2s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.6s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 SDtfs, 78 SDslu, 193 SDs, 0 SdLazy, 201 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=49occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 49 LocationsWithAnnotation, 49 PreInvPairs, 63 NumberOfFragments, 2042 HoareAnnotationTreeSize, 49 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 49 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 30 ConstructedInterpolants, 0 QuantifiedInterpolants, 14730 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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...