/usr/bin/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/test22-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 16:45:49,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 16:45:49,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 16:45:49,521 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 16:45:49,522 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 16:45:49,523 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 16:45:49,524 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 16:45:49,526 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 16:45:49,528 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 16:45:49,529 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 16:45:49,530 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 16:45:49,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 16:45:49,531 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 16:45:49,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 16:45:49,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 16:45:49,539 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 16:45:49,540 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 16:45:49,541 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 16:45:49,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 16:45:49,549 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 16:45:49,554 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 16:45:49,555 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 16:45:49,560 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 16:45:49,560 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 16:45:49,563 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 16:45:49,579 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 16:45:49,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 16:45:49,583 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 16:45:49,584 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 [2020-08-22 16:45:49,632 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 16:45:49,632 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 16:45:49,633 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-08-22 16:45:49,634 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-08-22 16:45:49,634 INFO L138 SettingsManager]: * Use SBE=true [2020-08-22 16:45:49,634 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 16:45:49,634 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 16:45:49,634 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 16:45:49,635 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 16:45:49,635 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 16:45:49,635 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 16:45:49,635 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 16:45:49,635 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 16:45:49,635 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 16:45:49,636 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 16:45:49,636 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 16:45:49,636 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 16:45:49,636 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 16:45:49,636 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-08-22 16:45:49,637 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 16:45:49,637 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 16:45:49,637 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 16:45:49,637 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 16:45:49,637 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-08-22 16:45:49,638 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-08-22 16:45:49,638 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-08-22 16:45:49,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-08-22 16:45:49,638 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 16:45:49,638 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-08-22 16:45:49,639 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-08-22 16:45:49,937 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 16:45:49,961 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 16:45:49,967 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 16:45:49,968 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 16:45:49,969 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 16:45:49,970 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test22-2.c [2020-08-22 16:45:50,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff11028c1/469bdc06043946e6aa191a3a0dd7e9ad/FLAG9d39ba307 [2020-08-22 16:45:50,576 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 16:45:50,577 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test22-2.c [2020-08-22 16:45:50,585 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff11028c1/469bdc06043946e6aa191a3a0dd7e9ad/FLAG9d39ba307 [2020-08-22 16:45:50,924 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ff11028c1/469bdc06043946e6aa191a3a0dd7e9ad [2020-08-22 16:45:50,935 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 16:45:50,937 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 16:45:50,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 16:45:50,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 16:45:50,942 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 16:45:50,943 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:45:50" (1/1) ... [2020-08-22 16:45:50,947 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d73c255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:50, skipping insertion in model container [2020-08-22 16:45:50,947 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 04:45:50" (1/1) ... [2020-08-22 16:45:50,956 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 16:45:50,977 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 16:45:51,172 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:45:51,183 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 16:45:51,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 16:45:51,221 INFO L208 MainTranslator]: Completed translation [2020-08-22 16:45:51,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51 WrapperNode [2020-08-22 16:45:51,222 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 16:45:51,223 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 16:45:51,223 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 16:45:51,223 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 16:45:51,328 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,339 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,339 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,349 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (1/1) ... [2020-08-22 16:45:51,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 16:45:51,360 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 16:45:51,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 16:45:51,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 16:45:51,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (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 [2020-08-22 16:45:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 16:45:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 16:45:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2020-08-22 16:45:51,431 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dummy [2020-08-22 16:45:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2020-08-22 16:45:51,432 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 16:45:51,432 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 16:45:51,433 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 16:45:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-08-22 16:45:51,434 INFO L130 BoogieDeclarations]: Found specification of procedure init [2020-08-22 16:45:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 16:45:51,435 INFO L130 BoogieDeclarations]: Found specification of procedure get_dummy [2020-08-22 16:45:51,436 INFO L130 BoogieDeclarations]: Found specification of procedure check [2020-08-22 16:45:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 16:45:51,437 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 16:45:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 16:45:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 16:45:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 16:45:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 16:45:51,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 16:45:51,752 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 16:45:51,753 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 16:45:51,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:45:51 BoogieIcfgContainer [2020-08-22 16:45:51,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 16:45:51,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 16:45:51,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 16:45:51,771 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 16:45:51,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 04:45:50" (1/3) ... [2020-08-22 16:45:51,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8bf091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:45:51, skipping insertion in model container [2020-08-22 16:45:51,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 04:45:51" (2/3) ... [2020-08-22 16:45:51,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b8bf091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 04:45:51, skipping insertion in model container [2020-08-22 16:45:51,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 04:45:51" (3/3) ... [2020-08-22 16:45:51,785 INFO L109 eAbstractionObserver]: Analyzing ICFG test22-2.c [2020-08-22 16:45:51,823 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-08-22 16:45:51,848 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 16:45:51,888 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 16:45:51,928 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 16:45:51,928 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 16:45:51,928 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-08-22 16:45:51,929 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 16:45:51,929 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 16:45:51,929 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 16:45:51,930 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 16:45:51,930 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 16:45:51,951 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2020-08-22 16:45:51,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2020-08-22 16:45:51,959 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:45:51,960 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:45:51,961 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:45:51,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:45:51,967 INFO L82 PathProgramCache]: Analyzing trace with hash 1345538594, now seen corresponding path program 1 times [2020-08-22 16:45:51,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:45:51,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098330166] [2020-08-22 16:45:51,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:45:52,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:45:52,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:45:52,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:45:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,310 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 16:45:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 16:45:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 16:45:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:52,349 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 16:45:52,350 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098330166] [2020-08-22 16:45:52,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 16:45:52,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 16:45:52,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813723960] [2020-08-22 16:45:52,362 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 16:45:52,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:45:52,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 16:45:52,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 16:45:52,381 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 4 states. [2020-08-22 16:45:52,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:45:52,704 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2020-08-22 16:45:52,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 16:45:52,707 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 37 [2020-08-22 16:45:52,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:45:52,724 INFO L225 Difference]: With dead ends: 49 [2020-08-22 16:45:52,724 INFO L226 Difference]: Without dead ends: 31 [2020-08-22 16:45:52,729 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-08-22 16:45:52,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2020-08-22 16:45:52,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2020-08-22 16:45:52,802 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2020-08-22 16:45:52,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 35 transitions. [2020-08-22 16:45:52,807 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 35 transitions. Word has length 37 [2020-08-22 16:45:52,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:45:52,809 INFO L479 AbstractCegarLoop]: Abstraction has 31 states and 35 transitions. [2020-08-22 16:45:52,809 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 16:45:52,810 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 35 transitions. [2020-08-22 16:45:52,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 16:45:52,815 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:45:52,815 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:45:52,816 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 16:45:52,816 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:45:52,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:45:52,817 INFO L82 PathProgramCache]: Analyzing trace with hash -213153012, now seen corresponding path program 1 times [2020-08-22 16:45:52,817 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:45:52,818 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534167116] [2020-08-22 16:45:52,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:45:52,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 16:45:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2020-08-22 16:45:53,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,067 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-08-22 16:45:53,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,133 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2020-08-22 16:45:53,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 16:45:53,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-08-22 16:45:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,164 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2020-08-22 16:45:53,164 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534167116] [2020-08-22 16:45:53,165 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574015192] [2020-08-22 16:45:53,165 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 [2020-08-22 16:45:53,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 16:45:53,251 INFO L263 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 76 conjunts are in the unsatisfiable core [2020-08-22 16:45:53,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-08-22 16:45:53,817 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2020-08-22 16:45:53,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-08-22 16:45:53,818 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [12] total 24 [2020-08-22 16:45:53,820 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230651916] [2020-08-22 16:45:53,821 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-08-22 16:45:53,821 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-08-22 16:45:53,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-08-22 16:45:53,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2020-08-22 16:45:53,823 INFO L87 Difference]: Start difference. First operand 31 states and 35 transitions. Second operand 14 states. [2020-08-22 16:45:54,501 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 16:45:54,501 INFO L93 Difference]: Finished difference Result 81 states and 99 transitions. [2020-08-22 16:45:54,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 16:45:54,502 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 38 [2020-08-22 16:45:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 16:45:54,506 INFO L225 Difference]: With dead ends: 81 [2020-08-22 16:45:54,507 INFO L226 Difference]: Without dead ends: 73 [2020-08-22 16:45:54,508 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 36 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2020-08-22 16:45:54,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2020-08-22 16:45:54,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 43. [2020-08-22 16:45:54,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-08-22 16:45:54,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 54 transitions. [2020-08-22 16:45:54,526 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 54 transitions. Word has length 38 [2020-08-22 16:45:54,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 16:45:54,527 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 54 transitions. [2020-08-22 16:45:54,527 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-08-22 16:45:54,527 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 54 transitions. [2020-08-22 16:45:54,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-08-22 16:45:54,529 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 16:45:54,529 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 16:45:54,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-08-22 16:45:54,744 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 16:45:54,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 16:45:54,745 INFO L82 PathProgramCache]: Analyzing trace with hash -1234221366, now seen corresponding path program 1 times [2020-08-22 16:45:54,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-08-22 16:45:54,747 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821344107] [2020-08-22 16:45:54,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 16:45:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:45:54,784 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:45:54,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 16:45:54,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 16:45:54,882 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-08-22 16:45:54,883 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 16:45:54,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 16:45:54,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 04:45:54 BoogieIcfgContainer [2020-08-22 16:45:54,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 16:45:54,959 INFO L168 Benchmark]: Toolchain (without parser) took 4020.83 ms. Allocated memory was 141.6 MB in the beginning and 243.3 MB in the end (delta: 101.7 MB). Free memory was 102.5 MB in the beginning and 144.1 MB in the end (delta: -41.6 MB). Peak memory consumption was 60.1 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:54,960 INFO L168 Benchmark]: CDTParser took 1.79 ms. Allocated memory is still 141.6 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-08-22 16:45:54,961 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.73 ms. Allocated memory is still 141.6 MB. Free memory was 102.3 MB in the beginning and 91.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:54,962 INFO L168 Benchmark]: Boogie Preprocessor took 136.62 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 180.8 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:54,963 INFO L168 Benchmark]: RCFGBuilder took 399.14 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 162.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:54,964 INFO L168 Benchmark]: TraceAbstraction took 3195.21 ms. Allocated memory was 203.4 MB in the beginning and 243.3 MB in the end (delta: 39.8 MB). Free memory was 161.5 MB in the beginning and 144.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. [2020-08-22 16:45:54,969 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.79 ms. Allocated memory is still 141.6 MB. Free memory was 121.4 MB in the beginning and 121.2 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 284.73 ms. Allocated memory is still 141.6 MB. Free memory was 102.3 MB in the beginning and 91.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 136.62 ms. Allocated memory was 141.6 MB in the beginning and 203.4 MB in the end (delta: 61.9 MB). Free memory was 91.6 MB in the beginning and 180.8 MB in the end (delta: -89.2 MB). Peak memory consumption was 10.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 399.14 ms. Allocated memory is still 203.4 MB. Free memory was 180.8 MB in the beginning and 162.1 MB in the end (delta: 18.6 MB). Peak memory consumption was 18.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3195.21 ms. Allocated memory was 203.4 MB in the beginning and 243.3 MB in the end (delta: 39.8 MB). Free memory was 161.5 MB in the beginning and 144.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 57.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 48]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L9] struct dummy d1, d2; VAL [\old(d1)=18, \old(d1)=22, \old(d2)=19, \old(d2)=21, d1={2:0}, d2={3:0}] [L32] CALL init() VAL [d1={2:0}, d2={3:0}] [L13] d1.a = __VERIFIER_nondet_int() [L14] d1.b = __VERIFIER_nondet_int() [L16] d2.a = __VERIFIER_nondet_int() [L17] d2.b = __VERIFIER_nondet_int() [L32] RET init() VAL [d1={2:0}, d2={3:0}] [L33] CALL, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={2:0}, d1={2:0}, d2={3:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}, get_dummy()={2:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=1, __VERIFIER_nondet_bool() ? &d1 : &d2={2:0}, d1={2:0}, d2={3:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}, get_dummy()={2:0}, pd1={2:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L33] CALL, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}] [L22] EXPR __VERIFIER_nondet_bool() ? &d1 : &d2 VAL [__VERIFIER_nondet_bool()=0, __VERIFIER_nondet_bool() ? &d1 : &d2={3:0}, d1={2:0}, d2={3:0}] [L22] return (__VERIFIER_nondet_bool() ? &d1 : &d2); [L33] RET, EXPR get_dummy() VAL [d1={2:0}, d2={3:0}, get_dummy()={3:0}, pd1={2:0}, pd2={2:0}] [L33] struct dummy *pd1 = get_dummy(), *pd2 = get_dummy(), *pd3 = get_dummy(); [L34] int i = __VERIFIER_nondet_int(); [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L35] EXPR (*pd2).a [L35] pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 VAL [(*pd2).a=5, d1={2:0}, d2={3:0}, i=-3, pd1={2:0}, pd1 != 0 && pd1 == pd2 && (*pd2).a > 0=1, pd2={2:0}, pd3={3:0}] [L35] COND TRUE pd1 != 0 && pd1 == pd2 && (*pd2).a > 0 [L36] int *pa = &pd1->a; [L37] EXPR pd3->a [L37] i = pd3->a - 10 [L38] EXPR \read(*pa) VAL [\read(*pa)=5, d1={2:0}, d2={3:0}, i=6, pa={2:0}, pd1={2:0}, pd2={2:0}, pd3={3:0}] [L38] COND FALSE !(i < *pa) [L41] CALL, EXPR check(pd2, i) VAL [\old(i)=6, d1={2:0}, d2={3:0}, s1={2:0}] [L27] EXPR s1->a [L27] return s1->a == i; [L41] RET, EXPR check(pd2, i) VAL [check(pd2, i)=0, d1={2:0}, d2={3:0}, i=6, pa={2:0}, pd1={2:0}, pd2={2:0}, pd3={3:0}] [L41] COND TRUE !check(pd2, i) [L48] __VERIFIER_error() VAL [d1={2:0}, d2={3:0}, i=6, pa={2:0}, pd1={2:0}, pd2={2:0}, pd3={3:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 36 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.9s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 96 SDslu, 242 SDs, 0 SdLazy, 318 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 80 GetRequests, 49 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=43occurred in iteration=2, 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, 2 MinimizatonAttempts, 30 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 151 NumberOfCodeBlocks, 151 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 110 ConstructedInterpolants, 0 QuantifiedInterpolants, 18808 SizeOfPredicates, 10 NumberOfNonLiveVariables, 183 ConjunctsInSsa, 76 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 33/36 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 incorrect! Received shutdown request...