java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test21-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-13a467a-m [2019-10-14 23:08:38,706 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-14 23:08:38,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-14 23:08:38,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-14 23:08:38,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-14 23:08:38,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-14 23:08:38,731 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-14 23:08:38,741 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-14 23:08:38,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-14 23:08:38,747 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-14 23:08:38,749 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-14 23:08:38,751 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-14 23:08:38,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-14 23:08:38,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-14 23:08:38,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-14 23:08:38,757 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-14 23:08:38,758 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-14 23:08:38,759 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-14 23:08:38,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-14 23:08:38,765 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-14 23:08:38,769 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-14 23:08:38,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-14 23:08:38,774 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-14 23:08:38,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-14 23:08:38,777 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-14 23:08:38,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-14 23:08:38,783 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-14 23:08:38,784 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-14 23:08:38,785 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-14 23:08:38,786 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-14 23:08:38,786 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-14 23:08:38,787 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-14 23:08:38,787 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-14 23:08:38,787 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-14 23:08:38,788 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-14 23:08:38,789 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-14 23:08:38,790 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-14 23:08:38,827 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-14 23:08:38,828 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-14 23:08:38,829 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-14 23:08:38,829 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-14 23:08:38,829 INFO L138 SettingsManager]: * Use SBE=true [2019-10-14 23:08:38,830 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-14 23:08:38,830 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-14 23:08:38,830 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-14 23:08:38,830 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-14 23:08:38,830 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-14 23:08:38,830 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-14 23:08:38,831 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-14 23:08:38,831 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-14 23:08:38,831 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-14 23:08:38,831 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-14 23:08:38,831 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-14 23:08:38,832 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-14 23:08:38,832 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-14 23:08:38,832 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-14 23:08:38,834 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-14 23:08:38,834 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-14 23:08:38,835 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-14 23:08:38,835 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-14 23:08:38,835 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-14 23:08:38,836 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-14 23:08:38,836 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-14 23:08:38,836 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-14 23:08:38,836 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-14 23:08:38,836 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-14 23:08:39,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-14 23:08:39,154 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-14 23:08:39,158 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-14 23:08:39,160 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-14 23:08:39,160 INFO L275 PluginConnector]: CDTParser initialized [2019-10-14 23:08:39,161 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test21-1.c [2019-10-14 23:08:39,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb73c913/7f2782a76ad84df39b94e605e0e30aa4/FLAGd3ce3faf2 [2019-10-14 23:08:39,701 INFO L306 CDTParser]: Found 1 translation units. [2019-10-14 23:08:39,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test21-1.c [2019-10-14 23:08:39,709 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb73c913/7f2782a76ad84df39b94e605e0e30aa4/FLAGd3ce3faf2 [2019-10-14 23:08:40,061 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0cb73c913/7f2782a76ad84df39b94e605e0e30aa4 [2019-10-14 23:08:40,069 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-14 23:08:40,071 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-14 23:08:40,074 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:40,075 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-14 23:08:40,078 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-14 23:08:40,080 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,083 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@760b8f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40, skipping insertion in model container [2019-10-14 23:08:40,083 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,091 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-14 23:08:40,112 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-14 23:08:40,292 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:40,317 INFO L188 MainTranslator]: Completed pre-run [2019-10-14 23:08:40,338 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-14 23:08:40,359 INFO L192 MainTranslator]: Completed translation [2019-10-14 23:08:40,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40 WrapperNode [2019-10-14 23:08:40,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-14 23:08:40,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-14 23:08:40,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-14 23:08:40,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-14 23:08:40,457 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,457 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,465 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,476 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (1/1) ... [2019-10-14 23:08:40,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-14 23:08:40,483 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-14 23:08:40,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-14 23:08:40,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-14 23:08:40,485 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (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 [2019-10-14 23:08:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-14 23:08:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-14 23:08:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-10-14 23:08:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2019-10-14 23:08:40,534 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-10-14 23:08:40,535 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-14 23:08:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-14 23:08:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-14 23:08:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-10-14 23:08:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-10-14 23:08:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-14 23:08:40,535 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2019-10-14 23:08:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-10-14 23:08:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-14 23:08:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-14 23:08:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-14 23:08:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-14 23:08:40,536 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-14 23:08:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-14 23:08:40,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-14 23:08:40,790 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-14 23:08:40,791 INFO L284 CfgBuilder]: Removed 0 assume(true) statements. [2019-10-14 23:08:40,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:40 BoogieIcfgContainer [2019-10-14 23:08:40,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-14 23:08:40,795 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-14 23:08:40,795 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-14 23:08:40,806 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-14 23:08:40,806 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 11:08:40" (1/3) ... [2019-10-14 23:08:40,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28184aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:40, skipping insertion in model container [2019-10-14 23:08:40,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 11:08:40" (2/3) ... [2019-10-14 23:08:40,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28184aff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 11:08:40, skipping insertion in model container [2019-10-14 23:08:40,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 11:08:40" (3/3) ... [2019-10-14 23:08:40,818 INFO L109 eAbstractionObserver]: Analyzing ICFG test21-1.c [2019-10-14 23:08:40,829 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-14 23:08:40,851 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-14 23:08:40,865 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-14 23:08:40,894 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-14 23:08:40,895 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-14 23:08:40,895 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-14 23:08:40,895 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-14 23:08:40,895 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-14 23:08:40,895 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-14 23:08:40,895 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-14 23:08:40,895 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-14 23:08:40,912 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2019-10-14 23:08:40,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-10-14 23:08:40,917 INFO L372 BasicCegarLoop]: Found error trace [2019-10-14 23:08:40,918 INFO L380 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-14 23:08:40,920 INFO L410 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-14 23:08:40,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-14 23:08:40,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1351082661, now seen corresponding path program 1 times [2019-10-14 23:08:40,933 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-14 23:08:40,933 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539553753] [2019-10-14 23:08:40,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:40,933 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-14 23:08:40,934 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-14 23:08:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-14 23:08:41,501 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-10-14 23:08:41,502 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539553753] [2019-10-14 23:08:41,503 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-14 23:08:41,503 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-10-14 23:08:41,504 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870018533] [2019-10-14 23:08:41,510 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-10-14 23:08:41,513 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-14 23:08:41,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-10-14 23:08:41,530 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2019-10-14 23:08:41,533 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 12 states. [2019-10-14 23:08:42,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-14 23:08:42,344 INFO L93 Difference]: Finished difference Result 56 states and 65 transitions. [2019-10-14 23:08:42,345 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-10-14 23:08:42,346 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2019-10-14 23:08:42,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-14 23:08:42,354 INFO L225 Difference]: With dead ends: 56 [2019-10-14 23:08:42,354 INFO L226 Difference]: Without dead ends: 0 [2019-10-14 23:08:42,358 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2019-10-14 23:08:42,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-14 23:08:42,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-14 23:08:42,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-14 23:08:42,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-14 23:08:42,384 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2019-10-14 23:08:42,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-14 23:08:42,385 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-14 23:08:42,385 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-10-14 23:08:42,385 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-14 23:08:42,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-14 23:08:42,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-14 23:08:42,537 INFO L443 ceAbstractionStarter]: For program point initEXIT(lines 11 18) no Hoare annotation was computed. [2019-10-14 23:08:42,537 INFO L439 ceAbstractionStarter]: At program point initENTRY(lines 11 18) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2019-10-14 23:08:42,537 INFO L443 ceAbstractionStarter]: For program point initFINAL(lines 11 18) no Hoare annotation was computed. [2019-10-14 23:08:42,538 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:42,538 INFO L439 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= |~#d2~0.offset| |old(~#d2~0.offset)|) (= |~#d1~0.base| |old(~#d1~0.base)|) (= |#valid| |old(#valid)|) (= |#NULL.base| |old(#NULL.base)|) (= |~#d2~0.base| |old(~#d2~0.base)|) (= |~#d1~0.offset| |old(~#d1~0.offset)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#length)| |#length|)) [2019-10-14 23:08:42,539 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:42,539 INFO L443 ceAbstractionStarter]: For program point get_dummyFINAL(lines 20 23) no Hoare annotation was computed. [2019-10-14 23:08:42,539 INFO L446 ceAbstractionStarter]: At program point get_dummyENTRY(lines 20 23) the Hoare annotation is: true [2019-10-14 23:08:42,539 INFO L443 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2019-10-14 23:08:42,540 INFO L443 ceAbstractionStarter]: For program point get_dummyEXIT(lines 20 23) no Hoare annotation was computed. [2019-10-14 23:08:42,540 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-14 23:08:42,540 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-10-14 23:08:42,540 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-10-14 23:08:42,540 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-14 23:08:42,541 INFO L443 ceAbstractionStarter]: For program point L33(line 33) no Hoare annotation was computed. [2019-10-14 23:08:42,541 INFO L443 ceAbstractionStarter]: For program point L35-2(lines 35 37) no Hoare annotation was computed. [2019-10-14 23:08:42,541 INFO L446 ceAbstractionStarter]: At program point L32(line 32) the Hoare annotation is: true [2019-10-14 23:08:42,541 INFO L446 ceAbstractionStarter]: At program point L33-1(line 33) the Hoare annotation is: true [2019-10-14 23:08:42,541 INFO L443 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2019-10-14 23:08:42,541 INFO L443 ceAbstractionStarter]: For program point L33-2(line 33) no Hoare annotation was computed. [2019-10-14 23:08:42,542 INFO L439 ceAbstractionStarter]: At program point mainENTRY(lines 30 44) the Hoare annotation is: (= |#memory_int| |old(#memory_int)|) [2019-10-14 23:08:42,542 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 30 44) no Hoare annotation was computed. [2019-10-14 23:08:42,542 INFO L443 ceAbstractionStarter]: For program point mainFINAL(lines 30 44) no Hoare annotation was computed. [2019-10-14 23:08:42,543 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2019-10-14 23:08:42,543 INFO L439 ceAbstractionStarter]: At program point L36(lines 31 44) the Hoare annotation is: false [2019-10-14 23:08:42,543 INFO L439 ceAbstractionStarter]: At program point L35(line 35) the Hoare annotation is: (and (= main_~pd2~0.offset main_~pd1~0.offset) (= main_~pd2~0.base main_~pd1~0.base)) [2019-10-14 23:08:42,543 INFO L443 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2019-10-14 23:08:42,543 INFO L443 ceAbstractionStarter]: For program point L35-1(line 35) no Hoare annotation was computed. [2019-10-14 23:08:42,544 INFO L446 ceAbstractionStarter]: At program point checkENTRY(lines 25 28) the Hoare annotation is: true [2019-10-14 23:08:42,544 INFO L443 ceAbstractionStarter]: For program point checkFINAL(lines 25 28) no Hoare annotation was computed. [2019-10-14 23:08:42,544 INFO L443 ceAbstractionStarter]: For program point checkEXIT(lines 25 28) no Hoare annotation was computed. [2019-10-14 23:08:42,553 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.10 11:08:42 BoogieIcfgContainer [2019-10-14 23:08:42,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-14 23:08:42,557 INFO L168 Benchmark]: Toolchain (without parser) took 2484.68 ms. Allocated memory was 138.4 MB in the beginning and 235.4 MB in the end (delta: 97.0 MB). Free memory was 103.7 MB in the beginning and 119.2 MB in the end (delta: -15.4 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:42,560 INFO L168 Benchmark]: CDTParser took 0.52 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-10-14 23:08:42,563 INFO L168 Benchmark]: CACSL2BoogieTranslator took 286.07 ms. Allocated memory is still 138.4 MB. Free memory was 103.5 MB in the beginning and 93.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:42,565 INFO L168 Benchmark]: Boogie Preprocessor took 122.27 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 179.9 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:42,567 INFO L168 Benchmark]: RCFGBuilder took 309.87 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 163.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:42,568 INFO L168 Benchmark]: TraceAbstraction took 1759.14 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 119.2 MB in the end (delta: 44.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. [2019-10-14 23:08:42,577 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.52 ms. Allocated memory is still 138.4 MB. Free memory was 121.7 MB in the beginning and 121.5 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 286.07 ms. Allocated memory is still 138.4 MB. Free memory was 103.5 MB in the beginning and 93.3 MB in the end (delta: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 122.27 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.3 MB in the beginning and 179.9 MB in the end (delta: -86.7 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 309.87 ms. Allocated memory is still 202.4 MB. Free memory was 179.9 MB in the beginning and 163.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1759.14 ms. Allocated memory was 202.4 MB in the beginning and 235.4 MB in the end (delta: 33.0 MB). Free memory was 163.9 MB in the beginning and 119.2 MB in the end (delta: 44.7 MB). Peak memory consumption was 77.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 31 locations, 1 error locations. Result: SAFE, OverallTime: 1.6s, OverallIterations: 1, TraceHistogramMax: 2, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 15 SDtfs, 45 SDslu, 55 SDs, 0 SdLazy, 244 SolverSat, 37 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 0.6s 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, 11 LocationsWithAnnotation, 14 PreInvPairs, 16 NumberOfFragments, 45 HoareAnnotationTreeSize, 14 FomulaSimplifications, 70 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 11 FomulaSimplificationsInter, 179 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 29 NumberOfCodeBlocks, 29 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 4088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 4/4 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...