/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_3.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:50,669 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:50,673 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:50,692 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:50,693 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:50,694 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:50,696 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:50,707 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:50,711 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:50,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:50,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:50,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:50,719 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:50,720 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:50,723 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:50,724 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:50,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:50,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:50,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:50,733 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:50,739 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:50,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:50,744 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:50,745 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:50,747 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:50,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:50,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:50,762 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:50,762 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 [2020-07-17 22:50:50,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:50,795 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:50,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:50,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:50,797 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:50,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:50,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:50,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:50,798 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:50,798 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:50,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:50,800 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:50,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:50,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:50,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:50,801 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:50,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:50,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:50,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:50,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:50,803 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:50,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:50,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:50,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:50,806 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:50,806 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:50,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:50,807 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:50,808 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:50,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:51,103 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:51,115 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:51,119 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:51,120 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:51,121 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:51,122 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/while_infinite_loop_3.c [2020-07-17 22:50:51,189 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fab4f3a7/dbd1506fad5243b48d447df495a25a69/FLAGba0f463e4 [2020-07-17 22:50:51,649 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:51,650 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/while_infinite_loop_3.c [2020-07-17 22:50:51,657 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fab4f3a7/dbd1506fad5243b48d447df495a25a69/FLAGba0f463e4 [2020-07-17 22:50:52,025 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fab4f3a7/dbd1506fad5243b48d447df495a25a69 [2020-07-17 22:50:52,034 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:52,037 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:52,038 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:52,039 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:52,043 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:52,045 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,048 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2396d48c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52, skipping insertion in model container [2020-07-17 22:50:52,049 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,056 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:52,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:52,252 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:52,259 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:52,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:52,288 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:52,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52 WrapperNode [2020-07-17 22:50:52,289 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:52,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:52,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:52,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:52,302 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,302 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,402 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (1/1) ... [2020-07-17 22:50:52,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:52,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:52,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:52,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:52,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (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 [2020-07-17 22:50:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:52,467 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure eval [2020-07-17 22:50:52,468 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure eval [2020-07-17 22:50:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:52,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:52,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:52,693 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:52,694 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-17 22:50:52,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:52 BoogieIcfgContainer [2020-07-17 22:50:52,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:52,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:52,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:52,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:52,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:52" (1/3) ... [2020-07-17 22:50:52,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c10c556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:52, skipping insertion in model container [2020-07-17 22:50:52,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:52" (2/3) ... [2020-07-17 22:50:52,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c10c556 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:52, skipping insertion in model container [2020-07-17 22:50:52,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:52" (3/3) ... [2020-07-17 22:50:52,711 INFO L109 eAbstractionObserver]: Analyzing ICFG while_infinite_loop_3.c [2020-07-17 22:50:52,725 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:52,753 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:52,769 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:52,804 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:52,804 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:52,804 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:52,805 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:52,805 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:52,805 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:52,805 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:52,805 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:52,826 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2020-07-17 22:50:52,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-17 22:50:52,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:52,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:52,837 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:52,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:52,847 INFO L82 PathProgramCache]: Analyzing trace with hash -1783967560, now seen corresponding path program 1 times [2020-07-17 22:50:52,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:52,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86296510] [2020-07-17 22:50:52,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:52,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:53,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:53,054 INFO L280 TraceCheckUtils]: 0: Hoare triple {31#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {26#true} is VALID [2020-07-17 22:50:53,055 INFO L280 TraceCheckUtils]: 1: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-17 22:50:53,055 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {26#true} {26#true} #45#return; {26#true} is VALID [2020-07-17 22:50:53,059 INFO L263 TraceCheckUtils]: 0: Hoare triple {26#true} call ULTIMATE.init(); {31#(= ~x~0 |old(~x~0)|)} is VALID [2020-07-17 22:50:53,059 INFO L280 TraceCheckUtils]: 1: Hoare triple {31#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {26#true} is VALID [2020-07-17 22:50:53,059 INFO L280 TraceCheckUtils]: 2: Hoare triple {26#true} assume true; {26#true} is VALID [2020-07-17 22:50:53,060 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {26#true} {26#true} #45#return; {26#true} is VALID [2020-07-17 22:50:53,060 INFO L263 TraceCheckUtils]: 4: Hoare triple {26#true} call #t~ret0 := main(); {26#true} is VALID [2020-07-17 22:50:53,062 INFO L280 TraceCheckUtils]: 5: Hoare triple {26#true} assume false; {27#false} is VALID [2020-07-17 22:50:53,062 INFO L263 TraceCheckUtils]: 6: Hoare triple {27#false} call __VERIFIER_assert((if 0 != ~x~0 then 1 else 0)); {27#false} is VALID [2020-07-17 22:50:53,063 INFO L280 TraceCheckUtils]: 7: Hoare triple {27#false} ~cond := #in~cond; {27#false} is VALID [2020-07-17 22:50:53,063 INFO L280 TraceCheckUtils]: 8: Hoare triple {27#false} assume 0 == ~cond; {27#false} is VALID [2020-07-17 22:50:53,063 INFO L280 TraceCheckUtils]: 9: Hoare triple {27#false} assume !false; {27#false} is VALID [2020-07-17 22:50:53,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:53,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86296510] [2020-07-17 22:50:53,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:53,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:50:53,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244687243] [2020-07-17 22:50:53,074 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-17 22:50:53,078 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:53,082 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:50:53,114 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:53,114 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:50:53,115 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:53,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:50:53,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:53,129 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 3 states. [2020-07-17 22:50:53,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:53,278 INFO L93 Difference]: Finished difference Result 37 states and 53 transitions. [2020-07-17 22:50:53,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:50:53,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-17 22:50:53,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:53,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:53,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2020-07-17 22:50:53,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:53,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 53 transitions. [2020-07-17 22:50:53,297 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 53 transitions. [2020-07-17 22:50:53,389 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 53 edges. 53 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:53,401 INFO L225 Difference]: With dead ends: 37 [2020-07-17 22:50:53,402 INFO L226 Difference]: Without dead ends: 19 [2020-07-17 22:50:53,406 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:53,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-17 22:50:53,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 17. [2020-07-17 22:50:53,468 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:53,469 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 17 states. [2020-07-17 22:50:53,469 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 17 states. [2020-07-17 22:50:53,470 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 17 states. [2020-07-17 22:50:53,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:53,475 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-07-17 22:50:53,475 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-07-17 22:50:53,476 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:53,476 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:53,477 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 19 states. [2020-07-17 22:50:53,477 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 19 states. [2020-07-17 22:50:53,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:53,481 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2020-07-17 22:50:53,481 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2020-07-17 22:50:53,482 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:53,482 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:53,482 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:53,483 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:53,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-17 22:50:53,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-07-17 22:50:53,487 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 10 [2020-07-17 22:50:53,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:53,487 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-07-17 22:50:53,488 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:50:53,488 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-07-17 22:50:53,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-17 22:50:53,489 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:53,489 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:53,489 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:53,489 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:53,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:53,490 INFO L82 PathProgramCache]: Analyzing trace with hash -1698359207, now seen corresponding path program 1 times [2020-07-17 22:50:53,490 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:53,491 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187464179] [2020-07-17 22:50:53,491 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:53,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:53,590 INFO L280 TraceCheckUtils]: 0: Hoare triple {161#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {150#true} is VALID [2020-07-17 22:50:53,591 INFO L280 TraceCheckUtils]: 1: Hoare triple {150#true} assume true; {150#true} is VALID [2020-07-17 22:50:53,591 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {150#true} {150#true} #45#return; {150#true} is VALID [2020-07-17 22:50:53,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:53,601 INFO L280 TraceCheckUtils]: 0: Hoare triple {161#(= ~x~0 |old(~x~0)|)} assume !false;~x~0 := 0; {158#(= 0 ~x~0)} is VALID [2020-07-17 22:50:53,602 INFO L280 TraceCheckUtils]: 1: Hoare triple {158#(= 0 ~x~0)} assume true; {158#(= 0 ~x~0)} is VALID [2020-07-17 22:50:53,603 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {158#(= 0 ~x~0)} {150#true} #49#return; {158#(= 0 ~x~0)} is VALID [2020-07-17 22:50:53,605 INFO L263 TraceCheckUtils]: 0: Hoare triple {150#true} call ULTIMATE.init(); {161#(= ~x~0 |old(~x~0)|)} is VALID [2020-07-17 22:50:53,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {161#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {150#true} is VALID [2020-07-17 22:50:53,605 INFO L280 TraceCheckUtils]: 2: Hoare triple {150#true} assume true; {150#true} is VALID [2020-07-17 22:50:53,606 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {150#true} {150#true} #45#return; {150#true} is VALID [2020-07-17 22:50:53,606 INFO L263 TraceCheckUtils]: 4: Hoare triple {150#true} call #t~ret0 := main(); {150#true} is VALID [2020-07-17 22:50:53,607 INFO L280 TraceCheckUtils]: 5: Hoare triple {150#true} assume !false; {150#true} is VALID [2020-07-17 22:50:53,608 INFO L263 TraceCheckUtils]: 6: Hoare triple {150#true} call eval(); {161#(= ~x~0 |old(~x~0)|)} is VALID [2020-07-17 22:50:53,609 INFO L280 TraceCheckUtils]: 7: Hoare triple {161#(= ~x~0 |old(~x~0)|)} assume !false;~x~0 := 0; {158#(= 0 ~x~0)} is VALID [2020-07-17 22:50:53,610 INFO L280 TraceCheckUtils]: 8: Hoare triple {158#(= 0 ~x~0)} assume true; {158#(= 0 ~x~0)} is VALID [2020-07-17 22:50:53,611 INFO L275 TraceCheckUtils]: 9: Hoare quadruple {158#(= 0 ~x~0)} {150#true} #49#return; {158#(= 0 ~x~0)} is VALID [2020-07-17 22:50:53,612 INFO L263 TraceCheckUtils]: 10: Hoare triple {158#(= 0 ~x~0)} call __VERIFIER_assert((if 0 == ~x~0 then 1 else 0)); {159#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-17 22:50:53,614 INFO L280 TraceCheckUtils]: 11: Hoare triple {159#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {160#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-17 22:50:53,615 INFO L280 TraceCheckUtils]: 12: Hoare triple {160#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {151#false} is VALID [2020-07-17 22:50:53,615 INFO L280 TraceCheckUtils]: 13: Hoare triple {151#false} assume !false; {151#false} is VALID [2020-07-17 22:50:53,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:53,617 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1187464179] [2020-07-17 22:50:53,618 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:53,618 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 22:50:53,618 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593010339] [2020-07-17 22:50:53,620 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-17 22:50:53,620 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:53,621 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-17 22:50:53,643 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:53,643 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 22:50:53,643 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:53,644 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 22:50:53,644 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:50:53,644 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 6 states. [2020-07-17 22:50:53,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:53,846 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2020-07-17 22:50:53,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 22:50:53,847 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-17 22:50:53,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:53,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-17 22:50:53,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2020-07-17 22:50:53,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-17 22:50:53,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 17 transitions. [2020-07-17 22:50:53,852 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 17 transitions. [2020-07-17 22:50:53,879 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:53,880 INFO L225 Difference]: With dead ends: 17 [2020-07-17 22:50:53,880 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:50:53,881 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 22:50:53,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:50:53,882 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:50:53,882 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:53,882 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:53,882 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:53,882 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:53,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:53,883 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:53,883 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:53,883 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:53,883 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:53,884 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:53,884 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:53,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:53,884 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:53,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:53,885 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:53,885 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:53,885 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:53,885 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:53,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:50:53,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:50:53,886 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2020-07-17 22:50:53,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:53,886 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:50:53,886 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 22:50:53,886 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:53,887 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:53,887 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:53,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:50:54,001 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:54,002 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2020-07-17 22:50:54,002 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:54,002 INFO L264 CegarLoopResult]: At program point evalENTRY(lines 12 19) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= 0 ~x~0)) [2020-07-17 22:50:54,003 INFO L268 CegarLoopResult]: For program point L14-1(lines 12 19) no Hoare annotation was computed. [2020-07-17 22:50:54,003 INFO L268 CegarLoopResult]: For program point evalEXIT(lines 12 19) no Hoare annotation was computed. [2020-07-17 22:50:54,003 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:54,003 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (= 0 ~x~0) [2020-07-17 22:50:54,003 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:50:54,004 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:54,004 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-07-17 22:50:54,004 INFO L264 CegarLoopResult]: At program point L27(lines 22 33) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= 0 ~x~0)) [2020-07-17 22:50:54,004 INFO L264 CegarLoopResult]: At program point L26(line 26) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= 0 ~x~0)) [2020-07-17 22:50:54,004 INFO L264 CegarLoopResult]: At program point L26-1(line 26) the Hoare annotation is: (or (not (= 0 |old(~x~0)|)) (= 0 ~x~0)) [2020-07-17 22:50:54,005 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 22 33) no Hoare annotation was computed. [2020-07-17 22:50:54,005 INFO L264 CegarLoopResult]: At program point L24-1(lines 24 28) the Hoare annotation is: (not (= 0 |old(~x~0)|)) [2020-07-17 22:50:54,005 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 22 33) no Hoare annotation was computed. [2020-07-17 22:50:54,005 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-17 22:50:54,005 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-17 22:50:54,006 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-17 22:50:54,006 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-17 22:50:54,006 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-17 22:50:54,006 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-17 22:50:54,011 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:54,012 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:50:54,012 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:50:54,012 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:50:54,015 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:54,015 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:54,015 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-17 22:50:54,015 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:54,017 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-17 22:50:54,018 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:54,018 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:54,018 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:54,018 WARN L170 areAnnotationChecker]: evalEXIT has no Hoare annotation [2020-07-17 22:50:54,018 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:54,019 WARN L170 areAnnotationChecker]: L30 has no Hoare annotation [2020-07-17 22:50:54,019 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-17 22:50:54,019 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-17 22:50:54,019 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-17 22:50:54,019 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:54,020 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:54,020 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:54,020 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:54,020 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. [2020-07-17 22:50:54,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:54 BoogieIcfgContainer [2020-07-17 22:50:54,023 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:54,027 INFO L168 Benchmark]: Toolchain (without parser) took 1990.07 ms. Allocated memory was 138.4 MB in the beginning and 234.9 MB in the end (delta: 96.5 MB). Free memory was 102.8 MB in the beginning and 175.0 MB in the end (delta: -72.2 MB). Peak memory consumption was 24.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:54,028 INFO L168 Benchmark]: CDTParser took 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:54,029 INFO L168 Benchmark]: CACSL2BoogieTranslator took 251.01 ms. Allocated memory is still 138.4 MB. Free memory was 102.6 MB in the beginning and 93.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:54,030 INFO L168 Benchmark]: Boogie Preprocessor took 120.55 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.0 MB in the beginning and 181.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:54,031 INFO L168 Benchmark]: RCFGBuilder took 289.95 ms. Allocated memory is still 202.4 MB. Free memory was 181.6 MB in the beginning and 167.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:54,033 INFO L168 Benchmark]: TraceAbstraction took 1321.43 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 166.5 MB in the beginning and 175.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:54,037 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 0.47 ms. Allocated memory is still 138.4 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 251.01 ms. Allocated memory is still 138.4 MB. Free memory was 102.6 MB in the beginning and 93.0 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.55 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 93.0 MB in the beginning and 181.6 MB in the end (delta: -88.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 289.95 ms. Allocated memory is still 202.4 MB. Free memory was 181.6 MB in the beginning and 167.1 MB in the end (delta: 14.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1321.43 ms. Allocated memory was 202.4 MB in the beginning and 234.9 MB in the end (delta: 32.5 MB). Free memory was 166.5 MB in the beginning and 175.0 MB in the end (delta: -8.6 MB). Peak memory consumption was 24.0 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 23 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 29 SDtfs, 23 SDslu, 26 SDs, 0 SdLazy, 14 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 12 PreInvPairs, 15 NumberOfFragments, 44 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 34 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 476 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...