/usr/bin/java -ea -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/test_while_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:07:31,096 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:07:31,099 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:07:31,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-10 15:07:31,150 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 [2020-07-10 15:07:31,167 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:07:31,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:07:31,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:07:31,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:07:31,169 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:07:31,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:07:31,170 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:07:31,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:07:31,170 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:07:31,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:07:31,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:07:31,171 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:07:31,171 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:07:31,171 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:07:31,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:07:31,171 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:07:31,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:07:31,172 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:07:31,172 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:07:31,172 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:07:31,172 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:07:31,173 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:07:31,173 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:07:31,173 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:07:31,173 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:07:31,173 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:07:31,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:07:31,174 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:07:31,174 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:07:31,174 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:07:31,457 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:07:31,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:07:31,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:07:31,476 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:07:31,476 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:07:31,477 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-07-10 15:07:31,542 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e2ddff72/3377d1bde1904da3b1629240d2345d5e/FLAG591b47a40 [2020-07-10 15:07:32,035 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:07:32,035 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-07-10 15:07:32,042 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e2ddff72/3377d1bde1904da3b1629240d2345d5e/FLAG591b47a40 [2020-07-10 15:07:32,453 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9e2ddff72/3377d1bde1904da3b1629240d2345d5e [2020-07-10 15:07:32,465 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:07:32,467 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:07:32,468 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:07:32,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:07:32,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:07:32,474 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43d38504 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32, skipping insertion in model container [2020-07-10 15:07:32,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:07:32,504 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:07:32,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:07:32,690 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:07:32,703 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:07:32,719 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:07:32,719 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32 WrapperNode [2020-07-10 15:07:32,719 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:07:32,720 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:07:32,720 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:07:32,721 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:07:32,733 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,733 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,737 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,738 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,742 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,747 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (1/1) ... [2020-07-10 15:07:32,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:07:32,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:07:32,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:07:32,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:07:32,832 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (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 [2020-07-10 15:07:32,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:07:32,895 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:07:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-10 15:07:32,896 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:07:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:07:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-10 15:07:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:07:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:07:32,896 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:07:33,100 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:07:33,101 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:07:33,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:07:33 BoogieIcfgContainer [2020-07-10 15:07:33,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:07:33,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:07:33,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:07:33,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:07:33,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:07:32" (1/3) ... [2020-07-10 15:07:33,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b119d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:07:33, skipping insertion in model container [2020-07-10 15:07:33,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:07:32" (2/3) ... [2020-07-10 15:07:33,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8b119d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:07:33, skipping insertion in model container [2020-07-10 15:07:33,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:07:33" (3/3) ... [2020-07-10 15:07:33,114 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2020-07-10 15:07:33,125 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:07:33,134 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:07:33,153 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:07:33,187 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:07:33,187 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:07:33,188 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:07:33,188 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:07:33,188 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:07:33,188 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:07:33,188 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:07:33,189 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:07:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-07-10 15:07:33,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-10 15:07:33,219 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:07:33,221 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:07:33,221 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:07:33,229 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:07:33,229 INFO L82 PathProgramCache]: Analyzing trace with hash 676687463, now seen corresponding path program 1 times [2020-07-10 15:07:33,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:07:33,241 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967996374] [2020-07-10 15:07:33,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:07:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:33,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:33,467 INFO L280 TraceCheckUtils]: 0: Hoare triple {20#true} assume true; {20#true} is VALID [2020-07-10 15:07:33,468 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {20#true} {20#true} #30#return; {20#true} is VALID [2020-07-10 15:07:33,473 INFO L263 TraceCheckUtils]: 0: Hoare triple {20#true} call ULTIMATE.init(); {20#true} is VALID [2020-07-10 15:07:33,475 INFO L280 TraceCheckUtils]: 1: Hoare triple {20#true} assume true; {20#true} is VALID [2020-07-10 15:07:33,476 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {20#true} {20#true} #30#return; {20#true} is VALID [2020-07-10 15:07:33,476 INFO L263 TraceCheckUtils]: 3: Hoare triple {20#true} call #t~ret1 := main(); {20#true} is VALID [2020-07-10 15:07:33,479 INFO L280 TraceCheckUtils]: 4: Hoare triple {20#true} ~i~0 := 0; {24#(<= main_~i~0 0)} is VALID [2020-07-10 15:07:33,484 INFO L280 TraceCheckUtils]: 5: Hoare triple {24#(<= main_~i~0 0)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {25#(<= main_~i~0 1)} is VALID [2020-07-10 15:07:33,485 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#(<= main_~i~0 1)} assume !(3 != ~i~0); {21#false} is VALID [2020-07-10 15:07:33,486 INFO L263 TraceCheckUtils]: 7: Hoare triple {21#false} call __blast_assert(); {21#false} is VALID [2020-07-10 15:07:33,486 INFO L280 TraceCheckUtils]: 8: Hoare triple {21#false} assume !false; {21#false} is VALID [2020-07-10 15:07:33,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:07:33,489 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1967996374] [2020-07-10 15:07:33,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:07:33,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-10 15:07:33,493 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048463210] [2020-07-10 15:07:33,499 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-10 15:07:33,501 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:07:33,504 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-10 15:07:33,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:33,530 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-10 15:07:33,530 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:07:33,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-10 15:07:33,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:07:33,541 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 4 states. [2020-07-10 15:07:33,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:33,684 INFO L93 Difference]: Finished difference Result 30 states and 40 transitions. [2020-07-10 15:07:33,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-10 15:07:33,685 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-10 15:07:33,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:07:33,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:07:33,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2020-07-10 15:07:33,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-10 15:07:33,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 40 transitions. [2020-07-10 15:07:33,701 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 40 transitions. [2020-07-10 15:07:33,788 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:33,800 INFO L225 Difference]: With dead ends: 30 [2020-07-10 15:07:33,800 INFO L226 Difference]: Without dead ends: 13 [2020-07-10 15:07:33,804 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-07-10 15:07:33,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-07-10 15:07:33,854 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-07-10 15:07:33,854 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:07:33,855 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 12 states. [2020-07-10 15:07:33,855 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 12 states. [2020-07-10 15:07:33,856 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 12 states. [2020-07-10 15:07:33,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:33,862 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:07:33,863 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:07:33,863 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:33,864 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:33,864 INFO L74 IsIncluded]: Start isIncluded. First operand 12 states. Second operand 13 states. [2020-07-10 15:07:33,864 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 13 states. [2020-07-10 15:07:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:33,873 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:07:33,873 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:07:33,874 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:33,874 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:33,874 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:07:33,875 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:07:33,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-10 15:07:33,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2020-07-10 15:07:33,884 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 9 [2020-07-10 15:07:33,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:07:33,884 INFO L479 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2020-07-10 15:07:33,884 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-10 15:07:33,885 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2020-07-10 15:07:33,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:07:33,887 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:07:33,887 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:07:33,888 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:07:33,888 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:07:33,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:07:33,889 INFO L82 PathProgramCache]: Analyzing trace with hash 1754257002, now seen corresponding path program 1 times [2020-07-10 15:07:33,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:07:33,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181079790] [2020-07-10 15:07:33,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:07:33,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:33,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:34,001 INFO L280 TraceCheckUtils]: 0: Hoare triple {116#true} assume true; {116#true} is VALID [2020-07-10 15:07:34,001 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {116#true} {116#true} #30#return; {116#true} is VALID [2020-07-10 15:07:34,002 INFO L263 TraceCheckUtils]: 0: Hoare triple {116#true} call ULTIMATE.init(); {116#true} is VALID [2020-07-10 15:07:34,002 INFO L280 TraceCheckUtils]: 1: Hoare triple {116#true} assume true; {116#true} is VALID [2020-07-10 15:07:34,002 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {116#true} {116#true} #30#return; {116#true} is VALID [2020-07-10 15:07:34,003 INFO L263 TraceCheckUtils]: 3: Hoare triple {116#true} call #t~ret1 := main(); {116#true} is VALID [2020-07-10 15:07:34,004 INFO L280 TraceCheckUtils]: 4: Hoare triple {116#true} ~i~0 := 0; {120#(<= main_~i~0 0)} is VALID [2020-07-10 15:07:34,007 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#(<= main_~i~0 0)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {121#(<= main_~i~0 1)} is VALID [2020-07-10 15:07:34,008 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#(<= main_~i~0 1)} assume 3 != ~i~0; {121#(<= main_~i~0 1)} is VALID [2020-07-10 15:07:34,011 INFO L280 TraceCheckUtils]: 7: Hoare triple {121#(<= main_~i~0 1)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {122#(<= main_~i~0 2)} is VALID [2020-07-10 15:07:34,012 INFO L280 TraceCheckUtils]: 8: Hoare triple {122#(<= main_~i~0 2)} assume !(3 != ~i~0); {117#false} is VALID [2020-07-10 15:07:34,013 INFO L263 TraceCheckUtils]: 9: Hoare triple {117#false} call __blast_assert(); {117#false} is VALID [2020-07-10 15:07:34,013 INFO L280 TraceCheckUtils]: 10: Hoare triple {117#false} assume !false; {117#false} is VALID [2020-07-10 15:07:34,014 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:07:34,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181079790] [2020-07-10 15:07:34,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786109045] [2020-07-10 15:07:34,016 INFO L94 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 [2020-07-10 15:07:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:34,063 INFO L264 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-10 15:07:34,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:07:34,083 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2020-07-10 15:07:34,175 INFO L263 TraceCheckUtils]: 0: Hoare triple {116#true} call ULTIMATE.init(); {116#true} is VALID [2020-07-10 15:07:34,176 INFO L280 TraceCheckUtils]: 1: Hoare triple {116#true} assume true; {116#true} is VALID [2020-07-10 15:07:34,177 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {116#true} {116#true} #30#return; {116#true} is VALID [2020-07-10 15:07:34,177 INFO L263 TraceCheckUtils]: 3: Hoare triple {116#true} call #t~ret1 := main(); {116#true} is VALID [2020-07-10 15:07:34,179 INFO L280 TraceCheckUtils]: 4: Hoare triple {116#true} ~i~0 := 0; {120#(<= main_~i~0 0)} is VALID [2020-07-10 15:07:34,181 INFO L280 TraceCheckUtils]: 5: Hoare triple {120#(<= main_~i~0 0)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {121#(<= main_~i~0 1)} is VALID [2020-07-10 15:07:34,182 INFO L280 TraceCheckUtils]: 6: Hoare triple {121#(<= main_~i~0 1)} assume 3 != ~i~0; {121#(<= main_~i~0 1)} is VALID [2020-07-10 15:07:34,186 INFO L280 TraceCheckUtils]: 7: Hoare triple {121#(<= main_~i~0 1)} assume !!(~i~0 < 5);#t~post0 := ~i~0;~i~0 := 1 + #t~post0;havoc #t~post0; {122#(<= main_~i~0 2)} is VALID [2020-07-10 15:07:34,187 INFO L280 TraceCheckUtils]: 8: Hoare triple {122#(<= main_~i~0 2)} assume !(3 != ~i~0); {117#false} is VALID [2020-07-10 15:07:34,187 INFO L263 TraceCheckUtils]: 9: Hoare triple {117#false} call __blast_assert(); {117#false} is VALID [2020-07-10 15:07:34,187 INFO L280 TraceCheckUtils]: 10: Hoare triple {117#false} assume !false; {117#false} is VALID [2020-07-10 15:07:34,189 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:07:34,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-10 15:07:34,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2020-07-10 15:07:34,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585900219] [2020-07-10 15:07:34,193 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:07:34,193 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:07:34,194 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:07:34,222 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:34,223 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:07:34,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:07:34,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:07:34,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:07:34,224 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2020-07-10 15:07:34,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:34,302 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-07-10 15:07:34,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 15:07:34,303 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:07:34,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:07:34,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:07:34,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-10 15:07:34,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:07:34,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-10 15:07:34,309 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 18 transitions. [2020-07-10 15:07:34,337 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:07:34,338 INFO L225 Difference]: With dead ends: 18 [2020-07-10 15:07:34,339 INFO L226 Difference]: Without dead ends: 15 [2020-07-10 15:07:34,340 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:07:34,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-07-10 15:07:34,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2020-07-10 15:07:34,381 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:07:34,382 INFO L82 GeneralOperation]: Start isEquivalent. First operand 15 states. Second operand 14 states. [2020-07-10 15:07:34,382 INFO L74 IsIncluded]: Start isIncluded. First operand 15 states. Second operand 14 states. [2020-07-10 15:07:34,382 INFO L87 Difference]: Start difference. First operand 15 states. Second operand 14 states. [2020-07-10 15:07:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:34,385 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 15:07:34,385 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 15:07:34,385 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:34,385 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:34,386 INFO L74 IsIncluded]: Start isIncluded. First operand 14 states. Second operand 15 states. [2020-07-10 15:07:34,386 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 15 states. [2020-07-10 15:07:34,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:07:34,389 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2020-07-10 15:07:34,389 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2020-07-10 15:07:34,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:07:34,390 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:07:34,390 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:07:34,390 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:07:34,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-10 15:07:34,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 14 transitions. [2020-07-10 15:07:34,394 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 14 transitions. Word has length 11 [2020-07-10 15:07:34,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:07:34,395 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 14 transitions. [2020-07-10 15:07:34,395 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:07:34,397 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 14 transitions. [2020-07-10 15:07:34,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-10 15:07:34,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:07:34,398 INFO L422 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:07:34,610 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-07-10 15:07:34,611 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:07:34,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:07:34,612 INFO L82 PathProgramCache]: Analyzing trace with hash -2083501651, now seen corresponding path program 2 times [2020-07-10 15:07:34,613 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:07:34,613 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082989130] [2020-07-10 15:07:34,613 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:07:34,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:07:34,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-10 15:07:34,645 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-10 15:07:34,645 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-10 15:07:34,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-10 15:07:34,659 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-10 15:07:34,659 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:07:34,659 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-10 15:07:34,660 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 15:07:34,661 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:07:34,661 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:07:34,663 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:07:34 BoogieIcfgContainer [2020-07-10 15:07:34,664 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:07:34,667 INFO L168 Benchmark]: Toolchain (without parser) took 2199.72 ms. Allocated memory was 136.8 MB in the beginning and 230.7 MB in the end (delta: 93.8 MB). Free memory was 102.3 MB in the beginning and 194.2 MB in the end (delta: -91.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:34,668 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:07:34,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.80 ms. Allocated memory is still 136.8 MB. Free memory was 102.1 MB in the beginning and 92.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:34,670 INFO L168 Benchmark]: Boogie Preprocessor took 109.86 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 180.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:34,670 INFO L168 Benchmark]: RCFGBuilder took 274.90 ms. Allocated memory is still 200.3 MB. Free memory was 180.1 MB in the beginning and 165.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:34,671 INFO L168 Benchmark]: TraceAbstraction took 1557.45 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 165.0 MB in the beginning and 194.2 MB in the end (delta: -29.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:07:34,675 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 136.8 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.80 ms. Allocated memory is still 136.8 MB. Free memory was 102.1 MB in the beginning and 92.7 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.86 ms. Allocated memory was 136.8 MB in the beginning and 200.3 MB in the end (delta: 63.4 MB). Free memory was 92.7 MB in the beginning and 180.1 MB in the end (delta: -87.4 MB). Peak memory consumption was 15.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 274.90 ms. Allocated memory is still 200.3 MB. Free memory was 180.1 MB in the beginning and 165.7 MB in the end (delta: 14.3 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1557.45 ms. Allocated memory was 200.3 MB in the beginning and 230.7 MB in the end (delta: 30.4 MB). Free memory was 165.0 MB in the beginning and 194.2 MB in the end (delta: -29.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] int i=0; VAL [i=0] [L13] COND TRUE i<5 [L14] i++ VAL [i=1] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=1] [L13] COND TRUE i<5 [L14] i++ VAL [i=2] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=2] [L13] COND TRUE i<5 [L14] i++ VAL [i=3] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=3] [L16] CALL __blast_assert () [L6] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 38 SDs, 0 SdLazy, 21 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 2 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 456 SizeOfPredicates, 1 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/4 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...