/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/test_union_cast.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:05:55,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:05:55,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:05:55,758 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:05:55,771 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-02-23 23:05:55,772 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-02-23 23:05:55,773 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-02-23 23:05:55,775 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-02-23 23:05:55,776 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-02-23 23:05:55,777 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-02-23 23:05:55,779 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-02-23 23:05:55,781 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-02-23 23:05:55,783 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-02-23 23:05:55,789 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-02-23 23:05:55,790 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-02-23 23:05:55,791 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-02-23 23:05:55,799 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-02-23 23:05:55,820 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 23:05:55,847 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:05:55,847 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:05:55,851 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:05:55,851 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:05:55,852 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:05:55,852 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:05:55,852 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:05:55,852 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:05:55,852 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:05:55,853 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:05:55,854 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:05:55,854 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:05:55,854 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:05:55,854 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:05:55,855 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:05:55,855 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:05:55,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:05:55,856 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:05:55,856 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:05:55,856 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:05:55,856 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:05:55,857 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:05:55,857 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:05:56,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:05:56,269 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:05:56,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:05:56,276 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:05:56,277 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:05:56,278 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_union_cast.i [2021-02-23 23:05:56,386 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148defd70/aee84daff248496ab0029d619f21faf4/FLAGbc831a1df [2021-02-23 23:05:57,141 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:05:57,141 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_union_cast.i [2021-02-23 23:05:57,148 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148defd70/aee84daff248496ab0029d619f21faf4/FLAGbc831a1df [2021-02-23 23:05:57,505 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/148defd70/aee84daff248496ab0029d619f21faf4 [2021-02-23 23:05:57,508 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:05:57,522 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:05:57,524 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:05:57,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:05:57,529 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:05:57,530 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,531 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f4d749e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57, skipping insertion in model container [2021-02-23 23:05:57,532 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,541 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:05:57,557 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:05:57,719 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/test_union_cast.i[297,310] [2021-02-23 23:05:57,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:05:57,751 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:05:57,766 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/test_union_cast.i[297,310] [2021-02-23 23:05:57,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:05:57,789 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:05:57,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57 WrapperNode [2021-02-23 23:05:57,790 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:05:57,791 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:05:57,791 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:05:57,792 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:05:57,806 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,806 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,815 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,815 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,826 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (1/1) ... [2021-02-23 23:05:57,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:05:57,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:05:57,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:05:57,830 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:05:57,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (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 23:05:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:05:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:05:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:05:57,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2021-02-23 23:05:57,933 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:05:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:05:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:05:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:05:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:05:57,933 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2021-02-23 23:05:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:05:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2021-02-23 23:05:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:05:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:05:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:05:57,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:05:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:05:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:05:57,935 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2021-02-23 23:05:58,174 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:05:58,174 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-02-23 23:05:58,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:05:58 BoogieIcfgContainer [2021-02-23 23:05:58,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:05:58,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:05:58,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:05:58,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:05:58,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:05:57" (1/3) ... [2021-02-23 23:05:58,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d3976d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:05:58, skipping insertion in model container [2021-02-23 23:05:58,185 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:05:57" (2/3) ... [2021-02-23 23:05:58,185 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49d3976d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:05:58, skipping insertion in model container [2021-02-23 23:05:58,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:05:58" (3/3) ... [2021-02-23 23:05:58,187 INFO L111 eAbstractionObserver]: Analyzing ICFG test_union_cast.i [2021-02-23 23:05:58,199 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:05:58,205 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:05:58,233 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:05:58,287 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:05:58,288 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:05:58,288 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:05:58,288 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:05:58,288 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:05:58,289 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:05:58,289 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:05:58,289 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:05:58,332 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2021-02-23 23:05:58,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2021-02-23 23:05:58,353 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:05:58,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:05:58,355 INFO L428 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:05:58,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:05:58,364 INFO L82 PathProgramCache]: Analyzing trace with hash 1961162068, now seen corresponding path program 1 times [2021-02-23 23:05:58,383 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:05:58,384 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [595648790] [2021-02-23 23:05:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:05:58,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:58,729 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,731 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:58,732 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,733 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:05:58,753 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,754 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:05:58,761 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,762 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:58,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:05:58,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:05:58,819 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:05:58,819 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:05:58,826 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 23:05:58,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [595648790] [2021-02-23 23:05:58,829 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:05:58,829 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-02-23 23:05:58,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246970230] [2021-02-23 23:05:58,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-02-23 23:05:58,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:05:58,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-02-23 23:05:58,853 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:05:58,855 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 5 states. [2021-02-23 23:05:58,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:05:58,952 INFO L93 Difference]: Finished difference Result 39 states and 38 transitions. [2021-02-23 23:05:58,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:05:58,954 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2021-02-23 23:05:58,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:05:58,962 INFO L225 Difference]: With dead ends: 39 [2021-02-23 23:05:58,962 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:05:58,966 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-02-23 23:05:58,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:05:58,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:05:58,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:05:58,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:05:58,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2021-02-23 23:05:58,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:05:58,996 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:05:58,996 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-02-23 23:05:58,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:05:58,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:05:58,997 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:05:58,999 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:05:59,117 INFO L189 CegarLoopUtils]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2021-02-23 23:05:59,117 INFO L189 CegarLoopUtils]: For program point reach_errorENTRY(line 3) no Hoare annotation was computed. [2021-02-23 23:05:59,117 INFO L189 CegarLoopUtils]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2021-02-23 23:05:59,118 INFO L192 CegarLoopUtils]: At program point L3-2(line 3) the Hoare annotation is: true [2021-02-23 23:05:59,118 INFO L192 CegarLoopUtils]: At program point L3-3(line 3) the Hoare annotation is: true [2021-02-23 23:05:59,118 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,118 INFO L192 CegarLoopUtils]: At program point L3-4(line 3) the Hoare annotation is: true [2021-02-23 23:05:59,118 INFO L192 CegarLoopUtils]: At program point L-1-1(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,119 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initFINAL(line 3) the Hoare annotation is: true [2021-02-23 23:05:59,119 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 23:05:59,119 INFO L192 CegarLoopUtils]: At program point L3(line 3) the Hoare annotation is: true [2021-02-23 23:05:59,119 INFO L192 CegarLoopUtils]: At program point L3-1(line 3) the Hoare annotation is: true [2021-02-23 23:05:59,120 INFO L192 CegarLoopUtils]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,120 INFO L192 CegarLoopUtils]: At program point __blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: true [2021-02-23 23:05:59,120 INFO L192 CegarLoopUtils]: At program point __blast_assertEXIT(lines 6 9) the Hoare annotation is: true [2021-02-23 23:05:59,120 INFO L192 CegarLoopUtils]: At program point L8(line 8) the Hoare annotation is: true [2021-02-23 23:05:59,120 INFO L192 CegarLoopUtils]: At program point __blast_assertFINAL(lines 6 9) the Hoare annotation is: true [2021-02-23 23:05:59,121 INFO L192 CegarLoopUtils]: At program point __blast_assertENTRY(lines 6 9) the Hoare annotation is: true [2021-02-23 23:05:59,121 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,121 INFO L192 CegarLoopUtils]: At program point L-1(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,121 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,121 INFO L192 CegarLoopUtils]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2021-02-23 23:05:59,121 INFO L185 CegarLoopUtils]: At program point L33(line 33) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2021-02-23 23:05:59,122 INFO L185 CegarLoopUtils]: At program point L31(line 31) the Hoare annotation is: (and (= |main_#t~mem7| 10) (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10)) [2021-02-23 23:05:59,122 INFO L185 CegarLoopUtils]: At program point L30(line 30) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2021-02-23 23:05:59,122 INFO L185 CegarLoopUtils]: At program point mainENTRY(lines 21 34) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2021-02-23 23:05:59,122 INFO L192 CegarLoopUtils]: At program point L29(line 29) the Hoare annotation is: true [2021-02-23 23:05:59,123 INFO L185 CegarLoopUtils]: At program point L31-2(line 31) the Hoare annotation is: false [2021-02-23 23:05:59,123 INFO L192 CegarLoopUtils]: At program point L28(line 28) the Hoare annotation is: true [2021-02-23 23:05:59,123 INFO L185 CegarLoopUtils]: At program point L31-3(line 31) the Hoare annotation is: (and (= |main_#t~mem7| 10) (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10)) [2021-02-23 23:05:59,123 INFO L185 CegarLoopUtils]: At program point L28-1(line 28) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2021-02-23 23:05:59,124 INFO L185 CegarLoopUtils]: At program point L28-2(line 28) the Hoare annotation is: (= (select (select |#memory_int| |main_~#llvm_cbe_var~0.base|) |main_~#llvm_cbe_var~0.offset|) 10) [2021-02-23 23:05:59,124 INFO L192 CegarLoopUtils]: At program point mainEXIT(lines 21 34) the Hoare annotation is: true [2021-02-23 23:05:59,124 INFO L192 CegarLoopUtils]: At program point mainFINAL(lines 21 34) the Hoare annotation is: true [2021-02-23 23:05:59,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.02 11:05:59 BoogieIcfgContainer [2021-02-23 23:05:59,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-02-23 23:05:59,140 INFO L168 Benchmark]: Toolchain (without parser) took 1628.74 ms. Allocated memory is still 151.0 MB. Free memory was 128.0 MB in the beginning and 90.2 MB in the end (delta: 37.9 MB). Peak memory consumption was 37.2 MB. Max. memory is 8.0 GB. [2021-02-23 23:05:59,140 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 151.0 MB. Free memory is still 132.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-02-23 23:05:59,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.14 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-02-23 23:05:59,142 INFO L168 Benchmark]: Boogie Preprocessor took 37.32 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-02-23 23:05:59,143 INFO L168 Benchmark]: RCFGBuilder took 347.02 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 102.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-02-23 23:05:59,144 INFO L168 Benchmark]: TraceAbstraction took 959.10 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 90.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. [2021-02-23 23:05:59,148 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 151.0 MB. Free memory is still 132.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 266.14 ms. Allocated memory is still 151.0 MB. Free memory was 126.7 MB in the beginning and 117.5 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 37.32 ms. Allocated memory is still 151.0 MB. Free memory was 117.5 MB in the beginning and 116.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 347.02 ms. Allocated memory is still 151.0 MB. Free memory was 116.1 MB in the beginning and 102.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 959.10 ms. Allocated memory is still 151.0 MB. Free memory was 102.2 MB in the beginning and 90.2 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 6]: Procedure Contract for __blast_assert Derived contract for procedure __blast_assert: 1 - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 34 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.7s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 20 SDtfs, 6 SDslu, 37 SDs, 0 SdLazy, 29 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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, 31 LocationsWithAnnotation, 31 PreInvPairs, 39 NumberOfFragments, 111 HoareAnnotationTreeSize, 31 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 31 FomulaSimplificationsInter, 24 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 1008 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...