/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Addition01-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-06 21:59:50,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-06 21:59:50,636 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-06 21:59:50,691 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-06 21:59:50,692 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-06 21:59:50,695 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-06 21:59:50,699 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-06 21:59:50,706 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-06 21:59:50,709 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-06 21:59:50,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-06 21:59:50,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-06 21:59:50,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-06 21:59:50,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-06 21:59:50,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-06 21:59:50,722 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-06 21:59:50,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-06 21:59:50,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-06 21:59:50,729 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-06 21:59:50,737 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-06 21:59:50,741 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-06 21:59:50,743 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-06 21:59:50,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-06 21:59:50,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-06 21:59:50,762 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-06 21:59:50,765 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-06 21:59:50,774 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-06 21:59:50,775 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-06 21:59:50,776 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-06 21:59:50,777 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 [2020-11-06 21:59:50,803 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-06 21:59:50,803 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-06 21:59:50,804 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-06 21:59:50,805 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-06 21:59:50,805 INFO L138 SettingsManager]: * Use SBE=true [2020-11-06 21:59:50,805 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-06 21:59:50,805 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-06 21:59:50,806 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-06 21:59:50,806 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-06 21:59:50,806 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-06 21:59:50,806 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-06 21:59:50,806 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-06 21:59:50,807 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-06 21:59:50,807 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-06 21:59:50,807 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-06 21:59:50,807 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-06 21:59:50,807 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-06 21:59:50,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-06 21:59:50,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-06 21:59:50,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-06 21:59:50,808 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-06 21:59:50,808 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:59:50,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-06 21:59:50,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-06 21:59:50,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-06 21:59:50,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-06 21:59:50,810 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-06 21:59:50,810 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-06 21:59:50,810 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-06 21:59:50,810 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-06 21:59:51,149 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-06 21:59:51,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-06 21:59:51,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-06 21:59:51,181 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-06 21:59:51,181 INFO L275 PluginConnector]: CDTParser initialized [2020-11-06 21:59:51,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Addition01-2.c [2020-11-06 21:59:51,261 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad724e37/ef9ef7f3763f48b8933ff4fde29142b2/FLAGeff5e107b [2020-11-06 21:59:51,830 INFO L306 CDTParser]: Found 1 translation units. [2020-11-06 21:59:51,831 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Addition01-2.c [2020-11-06 21:59:51,839 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad724e37/ef9ef7f3763f48b8933ff4fde29142b2/FLAGeff5e107b [2020-11-06 21:59:52,180 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bad724e37/ef9ef7f3763f48b8933ff4fde29142b2 [2020-11-06 21:59:52,183 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-06 21:59:52,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-06 21:59:52,192 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-06 21:59:52,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-06 21:59:52,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-06 21:59:52,197 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@92ed8ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52, skipping insertion in model container [2020-11-06 21:59:52,201 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,209 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-06 21:59:52,223 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-06 21:59:52,378 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:59:52,389 INFO L203 MainTranslator]: Completed pre-run [2020-11-06 21:59:52,408 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-06 21:59:52,424 INFO L208 MainTranslator]: Completed translation [2020-11-06 21:59:52,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52 WrapperNode [2020-11-06 21:59:52,425 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-06 21:59:52,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-06 21:59:52,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-06 21:59:52,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-06 21:59:52,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,448 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,448 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,457 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... [2020-11-06 21:59:52,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-06 21:59:52,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-06 21:59:52,461 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-06 21:59:52,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-06 21:59:52,462 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-06 21:59:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-06 21:59:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-06 21:59:52,543 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-06 21:59:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-06 21:59:52,544 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-06 21:59:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-06 21:59:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-06 21:59:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-06 21:59:52,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-06 21:59:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-06 21:59:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-06 21:59:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-06 21:59:52,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-06 21:59:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-06 21:59:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-06 21:59:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-06 21:59:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-06 21:59:52,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-06 21:59:52,942 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-06 21:59:52,942 INFO L298 CfgBuilder]: Removed 0 assume(true) statements. [2020-11-06 21:59:52,943 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:52 BoogieIcfgContainer [2020-11-06 21:59:52,944 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-06 21:59:52,945 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-06 21:59:52,946 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-06 21:59:52,949 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-06 21:59:52,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:59:52" (1/3) ... [2020-11-06 21:59:52,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba996f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:52, skipping insertion in model container [2020-11-06 21:59:52,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:59:52" (2/3) ... [2020-11-06 21:59:52,951 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ba996f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:59:52, skipping insertion in model container [2020-11-06 21:59:52,951 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:59:52" (3/3) ... [2020-11-06 21:59:52,953 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition01-2.c [2020-11-06 21:59:52,969 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-06 21:59:52,973 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-06 21:59:52,987 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-06 21:59:53,017 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-06 21:59:53,017 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-06 21:59:53,017 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-06 21:59:53,018 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-06 21:59:53,018 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-06 21:59:53,018 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-06 21:59:53,018 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-06 21:59:53,018 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-06 21:59:53,037 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states. [2020-11-06 21:59:53,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-06 21:59:53,044 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:59:53,045 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:59:53,045 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:59:53,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:59:53,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2040802546, now seen corresponding path program 1 times [2020-11-06 21:59:53,062 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:59:53,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427685343] [2020-11-06 21:59:53,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:59:53,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:53,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:59:53,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:53,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 21:59:53,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:53,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:59:53,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427685343] [2020-11-06 21:59:53,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:59:53,551 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 21:59:53,552 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287993071] [2020-11-06 21:59:53,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 21:59:53,559 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:59:53,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 21:59:53,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-11-06 21:59:53,578 INFO L87 Difference]: Start difference. First operand 31 states. Second operand 7 states. [2020-11-06 21:59:54,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:59:54,041 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2020-11-06 21:59:54,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 21:59:54,043 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-11-06 21:59:54,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:59:54,053 INFO L225 Difference]: With dead ends: 44 [2020-11-06 21:59:54,054 INFO L226 Difference]: Without dead ends: 26 [2020-11-06 21:59:54,057 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-06 21:59:54,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-11-06 21:59:54,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-11-06 21:59:54,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-11-06 21:59:54,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2020-11-06 21:59:54,107 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 17 [2020-11-06 21:59:54,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:59:54,107 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2020-11-06 21:59:54,107 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 21:59:54,108 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2020-11-06 21:59:54,110 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-11-06 21:59:54,110 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:59:54,110 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:59:54,110 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-06 21:59:54,111 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:59:54,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:59:54,112 INFO L82 PathProgramCache]: Analyzing trace with hash -165285543, now seen corresponding path program 1 times [2020-11-06 21:59:54,112 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:59:54,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866155117] [2020-11-06 21:59:54,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:59:54,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:59:54,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 21:59:54,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-06 21:59:54,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866155117] [2020-11-06 21:59:54,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-06 21:59:54,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-06 21:59:54,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247507097] [2020-11-06 21:59:54,262 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-06 21:59:54,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:59:54,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-06 21:59:54,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-11-06 21:59:54,264 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand 7 states. [2020-11-06 21:59:54,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:59:54,584 INFO L93 Difference]: Finished difference Result 38 states and 46 transitions. [2020-11-06 21:59:54,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-06 21:59:54,585 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2020-11-06 21:59:54,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:59:54,586 INFO L225 Difference]: With dead ends: 38 [2020-11-06 21:59:54,586 INFO L226 Difference]: Without dead ends: 23 [2020-11-06 21:59:54,588 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-11-06 21:59:54,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-11-06 21:59:54,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-11-06 21:59:54,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-06 21:59:54,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-11-06 21:59:54,596 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 19 [2020-11-06 21:59:54,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:59:54,597 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-11-06 21:59:54,597 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-06 21:59:54,597 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-11-06 21:59:54,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-11-06 21:59:54,598 INFO L414 BasicCegarLoop]: Found error trace [2020-11-06 21:59:54,598 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-06 21:59:54,598 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-06 21:59:54,598 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-06 21:59:54,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-06 21:59:54,599 INFO L82 PathProgramCache]: Analyzing trace with hash 1241281567, now seen corresponding path program 1 times [2020-11-06 21:59:54,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-06 21:59:54,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989264428] [2020-11-06 21:59:54,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-06 21:59:54,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-06 21:59:54,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-11-06 21:59:54,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-11-06 21:59:54,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,855 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-11-06 21:59:54,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989264428] [2020-11-06 21:59:54,856 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [480404194] [2020-11-06 21:59:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-06 21:59:54,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-06 21:59:54,933 INFO L263 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 27 conjunts are in the unsatisfiable core [2020-11-06 21:59:54,948 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-06 21:59:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-06 21:59:55,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-11-06 21:59:55,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 16 [2020-11-06 21:59:55,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38582629] [2020-11-06 21:59:55,175 INFO L461 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-11-06 21:59:55,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-06 21:59:55,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-11-06 21:59:55,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=202, Unknown=0, NotChecked=0, Total=240 [2020-11-06 21:59:55,177 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 16 states. [2020-11-06 21:59:56,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-06 21:59:56,052 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2020-11-06 21:59:56,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-06 21:59:56,053 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 24 [2020-11-06 21:59:56,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-06 21:59:56,054 INFO L225 Difference]: With dead ends: 28 [2020-11-06 21:59:56,054 INFO L226 Difference]: Without dead ends: 0 [2020-11-06 21:59:56,055 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=119, Invalid=583, Unknown=0, NotChecked=0, Total=702 [2020-11-06 21:59:56,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-06 21:59:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-06 21:59:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-06 21:59:56,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-06 21:59:56,056 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-11-06 21:59:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-06 21:59:56,056 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-06 21:59:56,056 INFO L482 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-11-06 21:59:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-06 21:59:56,056 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-06 21:59:56,264 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2020-11-06 21:59:56,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-06 21:59:56,467 INFO L266 CegarLoopResult]: For program point reach_errorEXIT(line 3) no Hoare annotation was computed. [2020-11-06 21:59:56,467 INFO L269 CegarLoopResult]: At program point reach_errorENTRY(line 3) the Hoare annotation is: true [2020-11-06 21:59:56,468 INFO L266 CegarLoopResult]: For program point reach_errorFINAL(line 3) no Hoare annotation was computed. [2020-11-06 21:59:56,468 INFO L266 CegarLoopResult]: For program point reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-06 21:59:56,468 INFO L266 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-11-06 21:59:56,468 INFO L262 CegarLoopResult]: 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|)) [2020-11-06 21:59:56,468 INFO L266 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-11-06 21:59:56,468 INFO L266 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-06 21:59:56,469 INFO L269 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-11-06 21:59:56,469 INFO L269 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-11-06 21:59:56,469 INFO L266 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-11-06 21:59:56,469 INFO L266 CegarLoopResult]: For program point L30(lines 30 34) no Hoare annotation was computed. [2020-11-06 21:59:56,469 INFO L269 CegarLoopResult]: At program point mainENTRY(lines 28 47) the Hoare annotation is: true [2020-11-06 21:59:56,469 INFO L266 CegarLoopResult]: For program point mainEXIT(lines 28 47) no Hoare annotation was computed. [2020-11-06 21:59:56,469 INFO L262 CegarLoopResult]: At program point L45(line 45) the Hoare annotation is: false [2020-11-06 21:59:56,470 INFO L266 CegarLoopResult]: For program point mainFINAL(lines 28 47) no Hoare annotation was computed. [2020-11-06 21:59:56,470 INFO L266 CegarLoopResult]: For program point L45-1(line 45) no Hoare annotation was computed. [2020-11-06 21:59:56,470 INFO L266 CegarLoopResult]: For program point L42(lines 42 46) no Hoare annotation was computed. [2020-11-06 21:59:56,470 INFO L262 CegarLoopResult]: At program point L41(line 41) the Hoare annotation is: (or (= main_~n~0 0) (< 0 main_~n~0)) [2020-11-06 21:59:56,470 INFO L266 CegarLoopResult]: For program point L41-1(line 41) no Hoare annotation was computed. [2020-11-06 21:59:56,470 INFO L266 CegarLoopResult]: For program point L36(lines 36 40) no Hoare annotation was computed. [2020-11-06 21:59:56,470 INFO L262 CegarLoopResult]: At program point L23(line 23) the Hoare annotation is: (and (= |addition_#in~m| addition_~m) (= |addition_#in~n| addition_~n) (<= |addition_#in~n| 0) (not (= |addition_#in~n| 0))) [2020-11-06 21:59:56,471 INFO L266 CegarLoopResult]: For program point L22(lines 22 24) no Hoare annotation was computed. [2020-11-06 21:59:56,471 INFO L266 CegarLoopResult]: For program point L23-1(line 23) no Hoare annotation was computed. [2020-11-06 21:59:56,471 INFO L266 CegarLoopResult]: For program point additionFINAL(lines 15 25) no Hoare annotation was computed. [2020-11-06 21:59:56,471 INFO L262 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (and (= |addition_#in~m| addition_~m) (= |addition_#in~n| addition_~n) (<= 1 addition_~n)) [2020-11-06 21:59:56,471 INFO L266 CegarLoopResult]: For program point L19(lines 19 21) no Hoare annotation was computed. [2020-11-06 21:59:56,471 INFO L266 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-11-06 21:59:56,471 INFO L266 CegarLoopResult]: For program point L16(lines 16 18) no Hoare annotation was computed. [2020-11-06 21:59:56,472 INFO L269 CegarLoopResult]: At program point additionENTRY(lines 15 25) the Hoare annotation is: true [2020-11-06 21:59:56,472 INFO L266 CegarLoopResult]: For program point additionEXIT(lines 15 25) no Hoare annotation was computed. [2020-11-06 21:59:56,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 09:59:56 BoogieIcfgContainer [2020-11-06 21:59:56,477 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-06 21:59:56,480 INFO L168 Benchmark]: Toolchain (without parser) took 4293.47 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 139.0 MB in the beginning and 156.8 MB in the end (delta: -17.9 MB). Peak memory consumption was 104.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:56,481 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 163.6 MB. Free memory was 136.7 MB in the beginning and 136.6 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-06 21:59:56,481 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.89 ms. Allocated memory is still 163.6 MB. Free memory was 138.3 MB in the beginning and 129.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:56,482 INFO L168 Benchmark]: Boogie Preprocessor took 33.00 ms. Allocated memory is still 163.6 MB. Free memory was 129.1 MB in the beginning and 127.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:56,483 INFO L168 Benchmark]: RCFGBuilder took 483.41 ms. Allocated memory is still 163.6 MB. Free memory was 127.7 MB in the beginning and 146.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:56,484 INFO L168 Benchmark]: TraceAbstraction took 3532.24 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 145.9 MB in the beginning and 156.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 110.1 MB. Max. memory is 8.0 GB. [2020-11-06 21:59:56,488 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 163.6 MB. Free memory was 136.7 MB in the beginning and 136.6 MB in the end (delta: 102.1 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 233.89 ms. Allocated memory is still 163.6 MB. Free memory was 138.3 MB in the beginning and 129.2 MB in the end (delta: 9.1 MB). Peak memory consumption was 8.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 33.00 ms. Allocated memory is still 163.6 MB. Free memory was 129.1 MB in the beginning and 127.9 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 483.41 ms. Allocated memory is still 163.6 MB. Free memory was 127.7 MB in the beginning and 146.6 MB in the end (delta: -18.9 MB). Peak memory consumption was 16.3 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3532.24 ms. Allocated memory was 163.6 MB in the beginning and 197.1 MB in the end (delta: 33.6 MB). Free memory was 145.9 MB in the beginning and 156.8 MB in the end (delta: -11.0 MB). Peak memory consumption was 110.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 3]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 31 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 92 SDslu, 91 SDs, 0 SdLazy, 313 SolverSat, 58 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 1.4s 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 18 NumberOfFragments, 68 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 155 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 84 NumberOfCodeBlocks, 84 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 80 ConstructedInterpolants, 0 QuantifiedInterpolants, 8845 SizeOfPredicates, 7 NumberOfNonLiveVariables, 130 ConjunctsInSsa, 27 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 3/8 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...