/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-46f3038-m [2020-07-08 22:23:44,594 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-08 22:23:44,598 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-08 22:23:44,618 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-07-08 22:23:44,646 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-08 22:23:44,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-08 22:23:44,653 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-08 22:23:44,654 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-08 22:23:44,655 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-08 22:23:44,656 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-08 22:23:44,658 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-08 22:23:44,660 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-08 22:23:44,661 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-08 22:23:44,662 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-08 22:23:44,663 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-08 22:23:44,664 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-08 22:23:44,666 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-08 22:23:44,674 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-08 22:23:44,675 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-08 22:23:44,676 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-08 22:23:44,677 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-08 22:23:44,686 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-08 22:23:44,687 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-08 22:23:44,688 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-08 22:23:44,688 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-08 22:23:44,689 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-08 22:23:44,689 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-08 22:23:44,689 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-08 22:23:44,689 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-08 22:23:44,689 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-08 22:23:44,689 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-08 22:23:44,690 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-08 22:23:44,690 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-08 22:23:44,690 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-08 22:23:44,690 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-08 22:23:44,690 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-08 22:23:44,691 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-08 22:23:44,691 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-08 22:23:44,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-08 22:23:44,691 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-08 22:23:44,691 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-08 22:23:44,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-08 22:23:44,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-08 22:23:44,692 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-08 22:23:44,981 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-08 22:23:44,993 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-08 22:23:44,997 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-08 22:23:44,998 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-08 22:23:44,999 INFO L275 PluginConnector]: CDTParser initialized [2020-07-08 22:23:45,000 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-07-08 22:23:45,078 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa5afae0/35c1ff0a50314f1597f42e1e4d492aef/FLAG505cdc3f1 [2020-07-08 22:23:45,548 INFO L306 CDTParser]: Found 1 translation units. [2020-07-08 22:23:45,549 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-regression/test_while_int.c_1.i [2020-07-08 22:23:45,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa5afae0/35c1ff0a50314f1597f42e1e4d492aef/FLAG505cdc3f1 [2020-07-08 22:23:45,906 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfa5afae0/35c1ff0a50314f1597f42e1e4d492aef [2020-07-08 22:23:45,915 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-08 22:23:45,917 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-08 22:23:45,918 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-08 22:23:45,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-08 22:23:45,923 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-08 22:23:45,925 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:23:45" (1/1) ... [2020-07-08 22:23:45,928 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66e5be1a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:45, skipping insertion in model container [2020-07-08 22:23:45,928 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.07 10:23:45" (1/1) ... [2020-07-08 22:23:45,937 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-08 22:23:45,960 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-08 22:23:46,140 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:23:46,149 INFO L203 MainTranslator]: Completed pre-run [2020-07-08 22:23:46,163 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-08 22:23:46,180 INFO L208 MainTranslator]: Completed translation [2020-07-08 22:23:46,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46 WrapperNode [2020-07-08 22:23:46,181 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-08 22:23:46,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-08 22:23:46,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-08 22:23:46,182 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-08 22:23:46,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,200 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,205 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,212 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (1/1) ... [2020-07-08 22:23:46,302 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-08 22:23:46,302 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-08 22:23:46,302 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-08 22:23:46,303 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-08 22:23:46,306 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (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 [2020-07-08 22:23:46,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-08 22:23:46,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-08 22:23:46,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __blast_assert [2020-07-08 22:23:46,380 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-08 22:23:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-08 22:23:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure __blast_assert [2020-07-08 22:23:46,380 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-08 22:23:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-08 22:23:46,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-08 22:23:46,599 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-08 22:23:46,599 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-08 22:23:46,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:23:46 BoogieIcfgContainer [2020-07-08 22:23:46,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-08 22:23:46,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-08 22:23:46,605 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-08 22:23:46,609 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-08 22:23:46,610 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.07 10:23:45" (1/3) ... [2020-07-08 22:23:46,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393150b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:23:46, skipping insertion in model container [2020-07-08 22:23:46,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.07 10:23:46" (2/3) ... [2020-07-08 22:23:46,612 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393150b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.07 10:23:46, skipping insertion in model container [2020-07-08 22:23:46,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.07 10:23:46" (3/3) ... [2020-07-08 22:23:46,614 INFO L109 eAbstractionObserver]: Analyzing ICFG test_while_int.c_1.i [2020-07-08 22:23:46,627 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-08 22:23:46,635 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-08 22:23:46,653 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-08 22:23:46,699 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-08 22:23:46,699 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-08 22:23:46,700 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-08 22:23:46,700 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-08 22:23:46,700 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-08 22:23:46,701 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-08 22:23:46,702 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-08 22:23:46,702 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-08 22:23:46,728 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-07-08 22:23:46,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-08 22:23:46,745 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:23:46,746 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:23:46,747 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:23:46,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:23:46,753 INFO L82 PathProgramCache]: Analyzing trace with hash 1457192654, now seen corresponding path program 1 times [2020-07-08 22:23:46,763 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:23:46,763 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [115491837] [2020-07-08 22:23:46,764 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:23:46,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:46,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:46,987 INFO L280 TraceCheckUtils]: 0: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-08 22:23:46,988 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {23#true} {23#true} #33#return; {23#true} is VALID [2020-07-08 22:23:46,990 INFO L263 TraceCheckUtils]: 0: Hoare triple {23#true} call ULTIMATE.init(); {23#true} is VALID [2020-07-08 22:23:46,991 INFO L280 TraceCheckUtils]: 1: Hoare triple {23#true} assume true; {23#true} is VALID [2020-07-08 22:23:46,991 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {23#true} {23#true} #33#return; {23#true} is VALID [2020-07-08 22:23:46,991 INFO L263 TraceCheckUtils]: 3: Hoare triple {23#true} call #t~ret1 := main(); {23#true} is VALID [2020-07-08 22:23:46,993 INFO L280 TraceCheckUtils]: 4: Hoare triple {23#true} ~i~0 := 0; {27#(<= main_~i~0 0)} is VALID [2020-07-08 22:23:46,994 INFO L280 TraceCheckUtils]: 5: Hoare triple {27#(<= main_~i~0 0)} assume !!(~i~0 < 5); {27#(<= main_~i~0 0)} is VALID [2020-07-08 22:23:46,995 INFO L280 TraceCheckUtils]: 6: Hoare triple {27#(<= main_~i~0 0)} #t~post0 := ~i~0; {28#(<= |main_#t~post0| 0)} is VALID [2020-07-08 22:23:46,997 INFO L280 TraceCheckUtils]: 7: Hoare triple {28#(<= |main_#t~post0| 0)} ~i~0 := 1 + #t~post0; {29#(<= main_~i~0 1)} is VALID [2020-07-08 22:23:46,998 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#(<= main_~i~0 1)} havoc #t~post0; {29#(<= main_~i~0 1)} is VALID [2020-07-08 22:23:46,999 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#(<= main_~i~0 1)} assume !(3 != ~i~0); {24#false} is VALID [2020-07-08 22:23:46,999 INFO L263 TraceCheckUtils]: 10: Hoare triple {24#false} call __blast_assert(); {24#false} is VALID [2020-07-08 22:23:47,000 INFO L280 TraceCheckUtils]: 11: Hoare triple {24#false} assume !false; {24#false} is VALID [2020-07-08 22:23:47,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:23:47,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [115491837] [2020-07-08 22:23:47,004 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-08 22:23:47,005 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-08 22:23:47,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056806773] [2020-07-08 22:23:47,012 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-08 22:23:47,015 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:23:47,019 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-08 22:23:47,049 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:47,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-08 22:23:47,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:23:47,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-08 22:23:47,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-08 22:23:47,064 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2020-07-08 22:23:47,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:47,286 INFO L93 Difference]: Finished difference Result 41 states and 51 transitions. [2020-07-08 22:23:47,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-08 22:23:47,286 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-07-08 22:23:47,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:23:47,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:23:47,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2020-07-08 22:23:47,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-08 22:23:47,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 51 transitions. [2020-07-08 22:23:47,308 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 51 transitions. [2020-07-08 22:23:47,402 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 51 edges. 51 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:47,423 INFO L225 Difference]: With dead ends: 41 [2020-07-08 22:23:47,424 INFO L226 Difference]: Without dead ends: 21 [2020-07-08 22:23:47,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:23:47,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-08 22:23:47,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 18. [2020-07-08 22:23:47,512 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:23:47,512 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 18 states. [2020-07-08 22:23:47,513 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 18 states. [2020-07-08 22:23:47,514 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 18 states. [2020-07-08 22:23:47,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:47,518 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-07-08 22:23:47,520 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-07-08 22:23:47,521 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:47,521 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:47,522 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 21 states. [2020-07-08 22:23:47,522 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 21 states. [2020-07-08 22:23:47,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:47,530 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2020-07-08 22:23:47,531 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2020-07-08 22:23:47,532 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:47,532 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:47,532 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:23:47,533 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:23:47,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-08 22:23:47,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-07-08 22:23:47,538 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 12 [2020-07-08 22:23:47,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:23:47,538 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-07-08 22:23:47,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-08 22:23:47,540 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states and 18 transitions. [2020-07-08 22:23:47,569 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:47,570 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-07-08 22:23:47,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-08 22:23:47,571 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:23:47,571 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:23:47,571 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-08 22:23:47,572 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:23:47,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:23:47,572 INFO L82 PathProgramCache]: Analyzing trace with hash -630240860, now seen corresponding path program 1 times [2020-07-08 22:23:47,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:23:47,573 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1568609526] [2020-07-08 22:23:47,573 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:23:47,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:47,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-08 22:23:47,721 INFO L280 TraceCheckUtils]: 0: Hoare triple {196#true} assume true; {196#true} is VALID [2020-07-08 22:23:47,722 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {196#true} {196#true} #33#return; {196#true} is VALID [2020-07-08 22:23:47,722 INFO L263 TraceCheckUtils]: 0: Hoare triple {196#true} call ULTIMATE.init(); {196#true} is VALID [2020-07-08 22:23:47,723 INFO L280 TraceCheckUtils]: 1: Hoare triple {196#true} assume true; {196#true} is VALID [2020-07-08 22:23:47,723 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {196#true} {196#true} #33#return; {196#true} is VALID [2020-07-08 22:23:47,724 INFO L263 TraceCheckUtils]: 3: Hoare triple {196#true} call #t~ret1 := main(); {196#true} is VALID [2020-07-08 22:23:47,726 INFO L280 TraceCheckUtils]: 4: Hoare triple {196#true} ~i~0 := 0; {200#(<= main_~i~0 0)} is VALID [2020-07-08 22:23:47,728 INFO L280 TraceCheckUtils]: 5: Hoare triple {200#(<= main_~i~0 0)} assume !!(~i~0 < 5); {200#(<= main_~i~0 0)} is VALID [2020-07-08 22:23:47,729 INFO L280 TraceCheckUtils]: 6: Hoare triple {200#(<= main_~i~0 0)} #t~post0 := ~i~0; {201#(<= |main_#t~post0| 0)} is VALID [2020-07-08 22:23:47,731 INFO L280 TraceCheckUtils]: 7: Hoare triple {201#(<= |main_#t~post0| 0)} ~i~0 := 1 + #t~post0; {202#(<= main_~i~0 1)} is VALID [2020-07-08 22:23:47,732 INFO L280 TraceCheckUtils]: 8: Hoare triple {202#(<= main_~i~0 1)} havoc #t~post0; {202#(<= main_~i~0 1)} is VALID [2020-07-08 22:23:47,734 INFO L280 TraceCheckUtils]: 9: Hoare triple {202#(<= main_~i~0 1)} assume 3 != ~i~0; {202#(<= main_~i~0 1)} is VALID [2020-07-08 22:23:47,735 INFO L280 TraceCheckUtils]: 10: Hoare triple {202#(<= main_~i~0 1)} assume !!(~i~0 < 5); {202#(<= main_~i~0 1)} is VALID [2020-07-08 22:23:47,736 INFO L280 TraceCheckUtils]: 11: Hoare triple {202#(<= main_~i~0 1)} #t~post0 := ~i~0; {203#(<= |main_#t~post0| 1)} is VALID [2020-07-08 22:23:47,738 INFO L280 TraceCheckUtils]: 12: Hoare triple {203#(<= |main_#t~post0| 1)} ~i~0 := 1 + #t~post0; {204#(<= main_~i~0 2)} is VALID [2020-07-08 22:23:47,739 INFO L280 TraceCheckUtils]: 13: Hoare triple {204#(<= main_~i~0 2)} havoc #t~post0; {204#(<= main_~i~0 2)} is VALID [2020-07-08 22:23:47,741 INFO L280 TraceCheckUtils]: 14: Hoare triple {204#(<= main_~i~0 2)} assume !(3 != ~i~0); {197#false} is VALID [2020-07-08 22:23:47,742 INFO L263 TraceCheckUtils]: 15: Hoare triple {197#false} call __blast_assert(); {197#false} is VALID [2020-07-08 22:23:47,742 INFO L280 TraceCheckUtils]: 16: Hoare triple {197#false} assume !false; {197#false} is VALID [2020-07-08 22:23:47,746 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-08 22:23:47,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1568609526] [2020-07-08 22:23:47,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-07-08 22:23:47,747 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-07-08 22:23:47,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133081438] [2020-07-08 22:23:47,759 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-08 22:23:47,760 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-08 22:23:47,760 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-08 22:23:47,787 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:47,787 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-08 22:23:47,788 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-08 22:23:47,788 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-08 22:23:47,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-07-08 22:23:47,789 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 7 states. [2020-07-08 22:23:47,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:47,978 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2020-07-08 22:23:47,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-08 22:23:47,978 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 17 [2020-07-08 22:23:47,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-08 22:23:47,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:23:47,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 29 transitions. [2020-07-08 22:23:47,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-08 22:23:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 29 transitions. [2020-07-08 22:23:47,984 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 29 transitions. [2020-07-08 22:23:48,016 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:48,018 INFO L225 Difference]: With dead ends: 29 [2020-07-08 22:23:48,018 INFO L226 Difference]: Without dead ends: 26 [2020-07-08 22:23:48,019 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110 [2020-07-08 22:23:48,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-07-08 22:23:48,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 23. [2020-07-08 22:23:48,042 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-08 22:23:48,042 INFO L82 GeneralOperation]: Start isEquivalent. First operand 26 states. Second operand 23 states. [2020-07-08 22:23:48,043 INFO L74 IsIncluded]: Start isIncluded. First operand 26 states. Second operand 23 states. [2020-07-08 22:23:48,043 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 23 states. [2020-07-08 22:23:48,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:48,046 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-07-08 22:23:48,046 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-07-08 22:23:48,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:48,046 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:48,047 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 26 states. [2020-07-08 22:23:48,047 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 26 states. [2020-07-08 22:23:48,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-08 22:23:48,050 INFO L93 Difference]: Finished difference Result 26 states and 26 transitions. [2020-07-08 22:23:48,050 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 26 transitions. [2020-07-08 22:23:48,051 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-08 22:23:48,051 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-08 22:23:48,051 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-08 22:23:48,051 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-08 22:23:48,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-08 22:23:48,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-07-08 22:23:48,053 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 17 [2020-07-08 22:23:48,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-08 22:23:48,054 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-07-08 22:23:48,054 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-08 22:23:48,054 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 23 transitions. [2020-07-08 22:23:48,085 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-08 22:23:48,085 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-07-08 22:23:48,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-08 22:23:48,086 INFO L414 BasicCegarLoop]: Found error trace [2020-07-08 22:23:48,086 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-08 22:23:48,087 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-08 22:23:48,087 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__blast_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-08 22:23:48,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-08 22:23:48,087 INFO L82 PathProgramCache]: Analyzing trace with hash 656823438, now seen corresponding path program 2 times [2020-07-08 22:23:48,088 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-08 22:23:48,088 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [97566194] [2020-07-08 22:23:48,088 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-08 22:23:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:23:48,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-08 22:23:48,127 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-08 22:23:48,128 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-08 22:23:48,128 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-08 22:23:48,158 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-08 22:23:48,158 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:23:48,158 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-08 22:23:48,158 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 22:23:48,158 WARN L170 areAnnotationChecker]: __blast_assertENTRY has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: mainENTRY has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: __blast_assertFINAL has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: __blast_assertEXIT has no Hoare annotation [2020-07-08 22:23:48,159 WARN L170 areAnnotationChecker]: L13-2 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L14 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L16 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-08 22:23:48,160 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-08 22:23:48,160 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. [2020-07-08 22:23:48,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.07 10:23:48 BoogieIcfgContainer [2020-07-08 22:23:48,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-08 22:23:48,166 INFO L168 Benchmark]: Toolchain (without parser) took 2248.77 ms. Allocated memory was 137.4 MB in the beginning and 233.3 MB in the end (delta: 95.9 MB). Free memory was 102.2 MB in the beginning and 154.7 MB in the end (delta: -52.5 MB). Peak memory consumption was 43.5 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:48,167 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-08 22:23:48,168 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.04 ms. Allocated memory is still 137.4 MB. Free memory was 102.0 MB in the beginning and 92.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:48,169 INFO L168 Benchmark]: Boogie Preprocessor took 120.01 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 92.6 MB in the beginning and 182.5 MB in the end (delta: -89.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:48,170 INFO L168 Benchmark]: RCFGBuilder took 301.63 ms. Allocated memory is still 202.4 MB. Free memory was 182.5 MB in the beginning and 168.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:48,171 INFO L168 Benchmark]: TraceAbstraction took 1558.03 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 168.0 MB in the beginning and 154.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 44.3 MB. Max. memory is 7.1 GB. [2020-07-08 22:23:48,175 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 0.32 ms. Allocated memory is still 137.4 MB. Free memory was 120.8 MB in the beginning and 120.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 263.04 ms. Allocated memory is still 137.4 MB. Free memory was 102.0 MB in the beginning and 92.6 MB in the end (delta: 9.4 MB). Peak memory consumption was 9.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.01 ms. Allocated memory was 137.4 MB in the beginning and 202.4 MB in the end (delta: 65.0 MB). Free memory was 92.6 MB in the beginning and 182.5 MB in the end (delta: -89.9 MB). Peak memory consumption was 15.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 301.63 ms. Allocated memory is still 202.4 MB. Free memory was 182.5 MB in the beginning and 168.0 MB in the end (delta: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1558.03 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 168.0 MB in the beginning and 154.7 MB in the end (delta: 13.3 MB). Peak memory consumption was 44.3 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 VAL [i=0] [L14] i++ VAL [i=1] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=1] [L13] COND TRUE i<5 VAL [i=1] [L14] i++ VAL [i=2] [L16] (i!=3) ? (0) : __blast_assert () VAL [i=2] [L13] COND TRUE i<5 VAL [i=2] [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, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.4s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 23 SDtfs, 13 SDslu, 72 SDs, 0 SdLazy, 50 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: 0.1s AutomataMinimizationTime, 2 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 807 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 0/5 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...