/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/loops/terminator_02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 18:43:20,547 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 18:43:20,550 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 18:43:20,601 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-23 18:43:20,693 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 18:43:20,694 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 18:43:20,695 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 18:43:20,696 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 [2020-10-23 18:43:20,751 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 18:43:20,751 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 18:43:20,755 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-23 18:43:20,756 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-23 18:43:20,756 INFO L138 SettingsManager]: * Use SBE=true [2020-10-23 18:43:20,756 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 18:43:20,756 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 18:43:20,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 18:43:20,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 18:43:20,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 18:43:20,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 18:43:20,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 18:43:20,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 18:43:20,760 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 18:43:20,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 18:43:20,760 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 18:43:20,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 18:43:20,761 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 18:43:20,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-23 18:43:20,761 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 18:43:20,762 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 18:43:20,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 18:43:20,762 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 18:43:20,762 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-23 18:43:20,762 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-23 18:43:20,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-23 18:43:20,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-23 18:43:20,763 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 18:43:20,763 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-23 18:43:20,763 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 18:43:21,152 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 18:43:21,177 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 18:43:21,180 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 18:43:21,182 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 18:43:21,182 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 18:43:21,183 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/terminator_02-1.c [2020-10-23 18:43:21,279 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5ae51054/5549b6dbd49d450a8e8baa2be4d8cdb0/FLAGcdc2bd459 [2020-10-23 18:43:21,817 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 18:43:21,817 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/terminator_02-1.c [2020-10-23 18:43:21,827 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5ae51054/5549b6dbd49d450a8e8baa2be4d8cdb0/FLAGcdc2bd459 [2020-10-23 18:43:22,223 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e5ae51054/5549b6dbd49d450a8e8baa2be4d8cdb0 [2020-10-23 18:43:22,226 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 18:43:22,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 18:43:22,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:22,236 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 18:43:22,240 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 18:43:22,241 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22b014f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22, skipping insertion in model container [2020-10-23 18:43:22,245 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,253 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 18:43:22,269 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 18:43:22,433 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:22,444 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 18:43:22,461 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 18:43:22,477 INFO L208 MainTranslator]: Completed translation [2020-10-23 18:43:22,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22 WrapperNode [2020-10-23 18:43:22,477 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 18:43:22,479 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 18:43:22,479 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 18:43:22,479 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 18:43:22,493 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,502 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,509 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,513 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,515 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (1/1) ... [2020-10-23 18:43:22,518 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 18:43:22,519 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 18:43:22,519 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 18:43:22,519 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 18:43:22,520 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (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 [2020-10-23 18:43:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 18:43:22,617 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 18:43:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 18:43:22,618 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-10-23 18:43:22,619 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 18:43:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 18:43:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 18:43:22,620 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 18:43:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 18:43:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-10-23 18:43:22,621 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 18:43:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-10-23 18:43:22,622 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 18:43:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 18:43:22,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 18:43:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 18:43:22,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 18:43:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 18:43:22,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 18:43:23,174 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 18:43:23,174 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-23 18:43:23,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:23 BoogieIcfgContainer [2020-10-23 18:43:23,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 18:43:23,179 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 18:43:23,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 18:43:23,183 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 18:43:23,183 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 06:43:22" (1/3) ... [2020-10-23 18:43:23,186 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a632b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:23, skipping insertion in model container [2020-10-23 18:43:23,186 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 06:43:22" (2/3) ... [2020-10-23 18:43:23,187 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a632b2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 06:43:23, skipping insertion in model container [2020-10-23 18:43:23,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 06:43:23" (3/3) ... [2020-10-23 18:43:23,190 INFO L111 eAbstractionObserver]: Analyzing ICFG terminator_02-1.c [2020-10-23 18:43:23,204 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-23 18:43:23,209 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-23 18:43:23,226 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-23 18:43:23,274 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 18:43:23,274 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 18:43:23,274 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-23 18:43:23,274 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 18:43:23,275 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 18:43:23,275 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 18:43:23,275 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 18:43:23,275 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 18:43:23,300 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-10-23 18:43:23,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-23 18:43:23,308 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:23,308 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:23,309 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:23,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:23,318 INFO L82 PathProgramCache]: Analyzing trace with hash 346045792, now seen corresponding path program 1 times [2020-10-23 18:43:23,330 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:23,331 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508964355] [2020-10-23 18:43:23,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:23,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:23,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 18:43:23,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 18:43:23,618 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 18:43:23,619 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508964355] [2020-10-23 18:43:23,620 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 18:43:23,620 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 18:43:23,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276908096] [2020-10-23 18:43:23,626 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 18:43:23,626 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-23 18:43:23,641 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 18:43:23,642 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:43:23,644 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2020-10-23 18:43:23,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 18:43:23,714 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2020-10-23 18:43:23,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 18:43:23,716 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 12 [2020-10-23 18:43:23,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 18:43:23,725 INFO L225 Difference]: With dead ends: 37 [2020-10-23 18:43:23,725 INFO L226 Difference]: Without dead ends: 14 [2020-10-23 18:43:23,729 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 18:43:23,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-10-23 18:43:23,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-10-23 18:43:23,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-10-23 18:43:23,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-10-23 18:43:23,776 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 12 [2020-10-23 18:43:23,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 18:43:23,777 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-10-23 18:43:23,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 18:43:23,777 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-10-23 18:43:23,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-23 18:43:23,778 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 18:43:23,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 18:43:23,778 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 18:43:23,778 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-23 18:43:23,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 18:43:23,780 INFO L82 PathProgramCache]: Analyzing trace with hash 59754282, now seen corresponding path program 1 times [2020-10-23 18:43:23,780 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-23 18:43:23,780 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1769348528] [2020-10-23 18:43:23,781 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 18:43:23,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:43:23,839 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:43:23,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 18:43:23,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 18:43:23,937 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-23 18:43:23,937 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 18:43:23,939 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 18:43:23,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 06:43:23 BoogieIcfgContainer [2020-10-23 18:43:23,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 18:43:23,985 INFO L168 Benchmark]: Toolchain (without parser) took 1752.95 ms. Allocated memory is still 151.0 MB. Free memory was 126.3 MB in the beginning and 114.5 MB in the end (delta: 11.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:23,986 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 125.8 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:23,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.43 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 116.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:23,990 INFO L168 Benchmark]: Boogie Preprocessor took 39.28 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:23,992 INFO L168 Benchmark]: RCFGBuilder took 658.17 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2020-10-23 18:43:23,993 INFO L168 Benchmark]: TraceAbstraction took 800.70 ms. Allocated memory is still 151.0 MB. Free memory was 101.5 MB in the beginning and 114.6 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 18:43:24,003 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 125.8 MB. Free memory is still 80.8 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 242.43 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 116.6 MB in the end (delta: 9.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 39.28 ms. Allocated memory is still 151.0 MB. Free memory was 116.6 MB in the beginning and 115.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 658.17 ms. Allocated memory is still 151.0 MB. Free memory was 115.0 MB in the beginning and 101.9 MB in the end (delta: 13.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 800.70 ms. Allocated memory is still 151.0 MB. Free memory was 101.5 MB in the beginning and 114.6 MB in the end (delta: -13.1 MB). There was no memory consumed. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L16] int x=__VERIFIER_nondet_int(); [L17] int y=__VERIFIER_nondet_int(); [L18] int z=__VERIFIER_nondet_int(); [L20] COND FALSE !(x<100 && 100