/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/loops/while_infinite_loop_1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:28:01,993 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:28:01,997 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:28:02,025 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:28:02,025 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:28:02,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:28:02,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:28:02,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:28:02,049 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:28:02,051 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:28:02,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:28:02,058 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:28:02,058 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:28:02,062 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:28:02,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:28:02,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:28:02,069 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:28:02,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:28:02,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:28:02,080 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:28:02,087 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:28:02,092 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:28:02,093 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:28:02,094 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:28:02,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-10 15:28:02,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-10 15:28:02,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-10 15:28:02,105 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-10 15:28:02,106 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-10 15:28:02,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-10 15:28:02,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-10 15:28:02,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-10 15:28:02,111 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-10 15:28:02,114 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-10 15:28:02,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-10 15:28:02,117 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-10 15:28:02,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-10 15:28:02,118 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-10 15:28:02,118 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:28:02,119 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:28:02,121 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:28:02,122 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 15:28:02,161 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:28:02,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:28:02,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:28:02,167 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:28:02,167 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:28:02,167 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:28:02,168 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:28:02,168 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:28:02,168 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:28:02,168 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:28:02,168 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:28:02,169 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:28:02,169 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:28:02,169 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:28:02,172 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:28:02,172 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:28:02,172 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:28:02,173 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:28:02,173 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:28:02,173 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:28:02,173 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:28:02,174 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:28:02,174 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:28:02,174 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:28:02,174 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:28:02,174 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:28:02,175 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:28:02,175 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:28:02,175 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:28:02,175 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:28:02,529 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:28:02,552 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:28:02,556 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:28:02,558 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:28:02,558 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:28:02,559 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_1.c [2020-07-10 15:28:02,665 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fae0b49/9b51b8cf9d904d2683f3ecffc341039c/FLAGb3a694d48 [2020-07-10 15:28:03,249 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:28:03,250 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_1.c [2020-07-10 15:28:03,257 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fae0b49/9b51b8cf9d904d2683f3ecffc341039c/FLAGb3a694d48 [2020-07-10 15:28:03,584 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/43fae0b49/9b51b8cf9d904d2683f3ecffc341039c [2020-07-10 15:28:03,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:28:03,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:28:03,609 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:28:03,609 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:28:03,615 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:28:03,618 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20f2ddd9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03, skipping insertion in model container [2020-07-10 15:28:03,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,635 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:28:03,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:28:03,836 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:28:03,844 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:28:03,862 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:28:03,882 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:28:03,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03 WrapperNode [2020-07-10 15:28:03,883 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:28:03,884 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:28:03,884 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:28:03,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:28:03,901 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,908 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,908 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,914 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,921 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:03,922 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (1/1) ... [2020-07-10 15:28:04,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:28:04,014 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:28:04,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:28:04,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:28:04,019 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (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 15:28:04,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:28:04,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:28:04,095 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:28:04,095 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:28:04,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:28:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:28:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:28:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:28:04,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:28:04,299 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:28:04,299 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-10 15:28:04,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:28:04 BoogieIcfgContainer [2020-07-10 15:28:04,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:28:04,306 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:28:04,307 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:28:04,311 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:28:04,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:28:03" (1/3) ... [2020-07-10 15:28:04,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d460171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:28:04, skipping insertion in model container [2020-07-10 15:28:04,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:03" (2/3) ... [2020-07-10 15:28:04,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d460171 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:28:04, skipping insertion in model container [2020-07-10 15:28:04,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:28:04" (3/3) ... [2020-07-10 15:28:04,316 INFO L109 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_1.c [2020-07-10 15:28:04,331 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:28:04,354 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:28:04,408 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:28:04,451 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:28:04,451 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:28:04,452 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:28:04,452 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:28:04,452 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:28:04,452 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:28:04,453 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:28:04,453 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:28:04,478 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2020-07-10 15:28:04,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-10 15:28:04,486 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:04,488 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:04,488 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:04,497 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:04,497 INFO L82 PathProgramCache]: Analyzing trace with hash -10313984, now seen corresponding path program 1 times [2020-07-10 15:28:04,510 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:04,511 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [406036261] [2020-07-10 15:28:04,512 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:04,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:04,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:04,704 INFO L280 TraceCheckUtils]: 0: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-10 15:28:04,705 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {21#true} {21#true} #32#return; {21#true} is VALID [2020-07-10 15:28:04,708 INFO L263 TraceCheckUtils]: 0: Hoare triple {21#true} call ULTIMATE.init(); {21#true} is VALID [2020-07-10 15:28:04,708 INFO L280 TraceCheckUtils]: 1: Hoare triple {21#true} assume true; {21#true} is VALID [2020-07-10 15:28:04,708 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {21#true} {21#true} #32#return; {21#true} is VALID [2020-07-10 15:28:04,709 INFO L263 TraceCheckUtils]: 3: Hoare triple {21#true} call #t~ret0 := main(); {21#true} is VALID [2020-07-10 15:28:04,709 INFO L280 TraceCheckUtils]: 4: Hoare triple {21#true} ~x~0 := 0; {21#true} is VALID [2020-07-10 15:28:04,711 INFO L280 TraceCheckUtils]: 5: Hoare triple {21#true} assume !true; {22#false} is VALID [2020-07-10 15:28:04,711 INFO L263 TraceCheckUtils]: 6: Hoare triple {22#false} call __VERIFIER_assert((if 0 != ~x~0 then 1 else 0)); {22#false} is VALID [2020-07-10 15:28:04,711 INFO L280 TraceCheckUtils]: 7: Hoare triple {22#false} ~cond := #in~cond; {22#false} is VALID [2020-07-10 15:28:04,712 INFO L280 TraceCheckUtils]: 8: Hoare triple {22#false} assume 0 == ~cond; {22#false} is VALID [2020-07-10 15:28:04,712 INFO L280 TraceCheckUtils]: 9: Hoare triple {22#false} assume !false; {22#false} is VALID [2020-07-10 15:28:04,713 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 15:28:04,714 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [406036261] [2020-07-10 15:28:04,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:28:04,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-10 15:28:04,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507929662] [2020-07-10 15:28:04,725 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-10 15:28:04,728 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:28:04,732 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-10 15:28:04,768 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:04,769 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-10 15:28:04,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:28:04,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-10 15:28:04,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-10 15:28:04,781 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 2 states. [2020-07-10 15:28:04,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:04,904 INFO L93 Difference]: Finished difference Result 26 states and 33 transitions. [2020-07-10 15:28:04,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-10 15:28:04,908 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-10 15:28:04,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:28:04,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 15:28:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2020-07-10 15:28:04,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-10 15:28:04,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 33 transitions. [2020-07-10 15:28:04,946 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 33 transitions. [2020-07-10 15:28:05,072 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:05,092 INFO L225 Difference]: With dead ends: 26 [2020-07-10 15:28:05,092 INFO L226 Difference]: Without dead ends: 13 [2020-07-10 15:28:05,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-10 15:28:05,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-07-10 15:28:05,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-07-10 15:28:05,150 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:28:05,151 INFO L82 GeneralOperation]: Start isEquivalent. First operand 13 states. Second operand 13 states. [2020-07-10 15:28:05,151 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-10 15:28:05,152 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-10 15:28:05,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:05,156 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:28:05,156 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:28:05,157 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:05,157 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:05,157 INFO L74 IsIncluded]: Start isIncluded. First operand 13 states. Second operand 13 states. [2020-07-10 15:28:05,157 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 13 states. [2020-07-10 15:28:05,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:05,162 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:28:05,163 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:28:05,163 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:05,163 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:05,164 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:28:05,164 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:28:05,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-07-10 15:28:05,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2020-07-10 15:28:05,169 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2020-07-10 15:28:05,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:28:05,169 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2020-07-10 15:28:05,170 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-10 15:28:05,170 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2020-07-10 15:28:05,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-10 15:28:05,171 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:05,171 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:05,171 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:28:05,172 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:05,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:05,173 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2020-07-10 15:28:05,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:05,173 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1739054311] [2020-07-10 15:28:05,174 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:05,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:05,315 INFO L280 TraceCheckUtils]: 0: Hoare triple {110#true} assume true; {110#true} is VALID [2020-07-10 15:28:05,316 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {110#true} {110#true} #32#return; {110#true} is VALID [2020-07-10 15:28:05,316 INFO L263 TraceCheckUtils]: 0: Hoare triple {110#true} call ULTIMATE.init(); {110#true} is VALID [2020-07-10 15:28:05,316 INFO L280 TraceCheckUtils]: 1: Hoare triple {110#true} assume true; {110#true} is VALID [2020-07-10 15:28:05,317 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {110#true} {110#true} #32#return; {110#true} is VALID [2020-07-10 15:28:05,317 INFO L263 TraceCheckUtils]: 3: Hoare triple {110#true} call #t~ret0 := main(); {110#true} is VALID [2020-07-10 15:28:05,319 INFO L280 TraceCheckUtils]: 4: Hoare triple {110#true} ~x~0 := 0; {114#(= 0 main_~x~0)} is VALID [2020-07-10 15:28:05,320 INFO L280 TraceCheckUtils]: 5: Hoare triple {114#(= 0 main_~x~0)} assume !false; {114#(= 0 main_~x~0)} is VALID [2020-07-10 15:28:05,322 INFO L263 TraceCheckUtils]: 6: Hoare triple {114#(= 0 main_~x~0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {115#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 15:28:05,323 INFO L280 TraceCheckUtils]: 7: Hoare triple {115#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {116#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:28:05,324 INFO L280 TraceCheckUtils]: 8: Hoare triple {116#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {111#false} is VALID [2020-07-10 15:28:05,325 INFO L280 TraceCheckUtils]: 9: Hoare triple {111#false} assume !false; {111#false} is VALID [2020-07-10 15:28:05,326 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 15:28:05,327 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1739054311] [2020-07-10 15:28:05,327 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:28:05,328 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:28:05,328 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952805618] [2020-07-10 15:28:05,330 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-10 15:28:05,331 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:28:05,331 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:28:05,350 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:05,351 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:28:05,351 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:28:05,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:28:05,352 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:28:05,352 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2020-07-10 15:28:05,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:05,448 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2020-07-10 15:28:05,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-10 15:28:05,449 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2020-07-10 15:28:05,449 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:28:05,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:05,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-07-10 15:28:05,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:05,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 13 transitions. [2020-07-10 15:28:05,454 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 13 transitions. [2020-07-10 15:28:05,481 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:05,481 INFO L225 Difference]: With dead ends: 13 [2020-07-10 15:28:05,481 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:28:05,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-10 15:28:05,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:28:05,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:28:05,484 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:28:05,484 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:05,484 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:05,484 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:05,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:05,485 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:28:05,485 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:28:05,485 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:05,486 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:05,486 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:05,486 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:05,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:05,487 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:28:05,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:28:05,487 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:05,487 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:05,488 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:28:05,488 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:28:05,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:28:05,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:28:05,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2020-07-10 15:28:05,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:28:05,489 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:28:05,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:28:05,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:28:05,490 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:05,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:28:05,493 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:28:05,548 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 15:28:05,548 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:28:05,548 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:28:05,549 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:28:05,549 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:28:05,549 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:28:05,549 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 10 19) the Hoare annotation is: true [2020-07-10 15:28:05,550 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 10 19) no Hoare annotation was computed. [2020-07-10 15:28:05,550 INFO L264 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: (= 0 main_~x~0) [2020-07-10 15:28:05,550 INFO L264 CegarLoopResult]: At program point L15-1(lines 13 16) the Hoare annotation is: (= 0 main_~x~0) [2020-07-10 15:28:05,550 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 10 19) no Hoare annotation was computed. [2020-07-10 15:28:05,551 INFO L264 CegarLoopResult]: At program point L13-2(lines 13 16) the Hoare annotation is: false [2020-07-10 15:28:05,551 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-10 15:28:05,551 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-10 15:28:05,551 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-10 15:28:05,552 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-10 15:28:05,552 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-10 15:28:05,552 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-10 15:28:05,559 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:28:05,560 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:05,561 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:28:05,561 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:28:05,564 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:05,564 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:05,565 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:28:05,565 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:28:05,565 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:28:05,565 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-10 15:28:05,566 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 15:28:05,566 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:28:05,566 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:05,566 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:05,566 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:28:05,567 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:28:05,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:28:05 BoogieIcfgContainer [2020-07-10 15:28:05,579 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:28:05,584 INFO L168 Benchmark]: Toolchain (without parser) took 1980.25 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 98.7 MB in the end (delta: 3.6 MB). Peak memory consumption was 67.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:05,585 INFO L168 Benchmark]: CDTParser took 0.43 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-10 15:28:05,586 INFO L168 Benchmark]: CACSL2BoogieTranslator took 274.95 ms. Allocated memory is still 137.4 MB. Free memory was 102.1 MB in the beginning and 92.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:05,587 INFO L168 Benchmark]: Boogie Preprocessor took 129.60 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 92.6 MB in the beginning and 181.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:05,588 INFO L168 Benchmark]: RCFGBuilder took 290.54 ms. Allocated memory is still 201.3 MB. Free memory was 180.6 MB in the beginning and 167.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:05,589 INFO L168 Benchmark]: TraceAbstraction took 1273.37 ms. Allocated memory is still 201.3 MB. Free memory was 167.8 MB in the beginning and 98.7 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:05,594 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 0.43 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 274.95 ms. Allocated memory is still 137.4 MB. Free memory was 102.1 MB in the beginning and 92.6 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.60 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 92.6 MB in the beginning and 181.5 MB in the end (delta: -88.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 290.54 ms. Allocated memory is still 201.3 MB. Free memory was 180.6 MB in the beginning and 167.8 MB in the end (delta: 12.8 MB). Peak memory consumption was 12.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1273.37 ms. Allocated memory is still 201.3 MB. Free memory was 167.8 MB in the beginning and 98.7 MB in the end (delta: 69.1 MB). Peak memory consumption was 69.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: 0 == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 21 SDtfs, 5 SDslu, 19 SDs, 0 SdLazy, 7 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 10 PreInvPairs, 12 NumberOfFragments, 12 HoareAnnotationTreeSize, 10 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...