/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-18 00:49:12,849 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-18 00:49:12,851 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-18 00:49:12,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-18 00:49:12,864 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-18 00:49:12,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-18 00:49:12,867 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-18 00:49:12,869 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-18 00:49:12,870 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-18 00:49:12,871 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-18 00:49:12,872 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-18 00:49:12,873 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-18 00:49:12,874 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-18 00:49:12,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-18 00:49:12,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-18 00:49:12,880 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-18 00:49:12,881 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-18 00:49:12,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-18 00:49:12,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-18 00:49:12,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-18 00:49:12,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-18 00:49:12,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-18 00:49:12,895 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-18 00:49:12,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-18 00:49:12,899 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-18 00:49:12,917 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-18 00:49:12,917 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-18 00:49:12,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-18 00:49:12,920 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-18 00:49:12,933 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-18 00:49:12,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-18 00:49:12,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-18 00:49:12,935 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-18 00:49:12,935 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-18 00:49:12,935 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-18 00:49:12,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-18 00:49:12,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-18 00:49:12,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-18 00:49:12,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-18 00:49:12,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-18 00:49:12,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-18 00:49:12,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-18 00:49:12,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-18 00:49:12,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-18 00:49:12,938 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-18 00:49:12,939 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-18 00:49:12,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-18 00:49:12,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-18 00:49:12,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-18 00:49:12,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-18 00:49:12,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-18 00:49:12,940 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-18 00:49:13,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-18 00:49:13,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-18 00:49:13,284 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-18 00:49:13,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-18 00:49:13,286 INFO L275 PluginConnector]: CDTParser initialized [2020-07-18 00:49:13,287 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2020-07-18 00:49:13,351 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3235f237/3d0018d2ffdc49c78a84fad06b0ddf1a/FLAG815171b18 [2020-07-18 00:49:13,752 INFO L306 CDTParser]: Found 1 translation units. [2020-07-18 00:49:13,753 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-lit/cggmp2005_variant.i [2020-07-18 00:49:13,759 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3235f237/3d0018d2ffdc49c78a84fad06b0ddf1a/FLAG815171b18 [2020-07-18 00:49:14,116 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3235f237/3d0018d2ffdc49c78a84fad06b0ddf1a [2020-07-18 00:49:14,124 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-18 00:49:14,127 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-18 00:49:14,129 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-18 00:49:14,129 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-18 00:49:14,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-18 00:49:14,135 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,138 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d6113eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14, skipping insertion in model container [2020-07-18 00:49:14,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,147 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-18 00:49:14,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-18 00:49:14,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:49:14,336 INFO L203 MainTranslator]: Completed pre-run [2020-07-18 00:49:14,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-18 00:49:14,371 INFO L208 MainTranslator]: Completed translation [2020-07-18 00:49:14,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14 WrapperNode [2020-07-18 00:49:14,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-18 00:49:14,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-18 00:49:14,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-18 00:49:14,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-18 00:49:14,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,404 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (1/1) ... [2020-07-18 00:49:14,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-18 00:49:14,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-18 00:49:14,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-18 00:49:14,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-18 00:49:14,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (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 [2020-07-18 00:49:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-18 00:49:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-18 00:49:14,607 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-18 00:49:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-18 00:49:14,608 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-18 00:49:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-18 00:49:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-18 00:49:14,608 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-18 00:49:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-18 00:49:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-18 00:49:14,609 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-18 00:49:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-18 00:49:14,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-18 00:49:14,995 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-18 00:49:14,996 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-18 00:49:15,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:49:15 BoogieIcfgContainer [2020-07-18 00:49:15,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-18 00:49:15,005 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-18 00:49:15,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-18 00:49:15,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-18 00:49:15,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.07 12:49:14" (1/3) ... [2020-07-18 00:49:15,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258182cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:49:15, skipping insertion in model container [2020-07-18 00:49:15,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.07 12:49:14" (2/3) ... [2020-07-18 00:49:15,013 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@258182cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.07 12:49:15, skipping insertion in model container [2020-07-18 00:49:15,013 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.07 12:49:15" (3/3) ... [2020-07-18 00:49:15,015 INFO L109 eAbstractionObserver]: Analyzing ICFG cggmp2005_variant.i [2020-07-18 00:49:15,025 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-18 00:49:15,033 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-18 00:49:15,047 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-18 00:49:15,069 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-18 00:49:15,069 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-18 00:49:15,070 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-18 00:49:15,070 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-18 00:49:15,070 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-18 00:49:15,070 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-18 00:49:15,070 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-18 00:49:15,070 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-18 00:49:15,086 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2020-07-18 00:49:15,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-18 00:49:15,097 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:49:15,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:49:15,098 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:49:15,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:49:15,103 INFO L82 PathProgramCache]: Analyzing trace with hash 627729613, now seen corresponding path program 1 times [2020-07-18 00:49:15,112 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:49:15,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106323785] [2020-07-18 00:49:15,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:49:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:49:15,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:49:15,294 INFO L280 TraceCheckUtils]: 0: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-18 00:49:15,295 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {33#true} {33#true} #56#return; {33#true} is VALID [2020-07-18 00:49:15,297 INFO L263 TraceCheckUtils]: 0: Hoare triple {33#true} call ULTIMATE.init(); {33#true} is VALID [2020-07-18 00:49:15,297 INFO L280 TraceCheckUtils]: 1: Hoare triple {33#true} assume true; {33#true} is VALID [2020-07-18 00:49:15,298 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {33#true} {33#true} #56#return; {33#true} is VALID [2020-07-18 00:49:15,298 INFO L263 TraceCheckUtils]: 3: Hoare triple {33#true} call #t~ret1 := main(); {33#true} is VALID [2020-07-18 00:49:15,299 INFO L280 TraceCheckUtils]: 4: Hoare triple {33#true} havoc ~lo~0; {33#true} is VALID [2020-07-18 00:49:15,299 INFO L280 TraceCheckUtils]: 5: Hoare triple {33#true} havoc ~mid~0; {33#true} is VALID [2020-07-18 00:49:15,300 INFO L280 TraceCheckUtils]: 6: Hoare triple {33#true} havoc ~hi~0; {33#true} is VALID [2020-07-18 00:49:15,300 INFO L280 TraceCheckUtils]: 7: Hoare triple {33#true} ~lo~0 := 0; {33#true} is VALID [2020-07-18 00:49:15,300 INFO L280 TraceCheckUtils]: 8: Hoare triple {33#true} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {33#true} is VALID [2020-07-18 00:49:15,301 INFO L280 TraceCheckUtils]: 9: Hoare triple {33#true} ~mid~0 := #t~nondet0; {33#true} is VALID [2020-07-18 00:49:15,301 INFO L280 TraceCheckUtils]: 10: Hoare triple {33#true} havoc #t~nondet0; {33#true} is VALID [2020-07-18 00:49:15,308 INFO L280 TraceCheckUtils]: 11: Hoare triple {33#true} assume !!(~mid~0 > 0 && ~mid~0 <= 1000000); {37#(< 0 main_~mid~0)} is VALID [2020-07-18 00:49:15,309 INFO L280 TraceCheckUtils]: 12: Hoare triple {37#(< 0 main_~mid~0)} ~hi~0 := 2 * ~mid~0; {37#(< 0 main_~mid~0)} is VALID [2020-07-18 00:49:15,310 INFO L280 TraceCheckUtils]: 13: Hoare triple {37#(< 0 main_~mid~0)} assume !(~mid~0 > 0); {34#false} is VALID [2020-07-18 00:49:15,311 INFO L263 TraceCheckUtils]: 14: Hoare triple {34#false} call __VERIFIER_assert((if ~lo~0 == ~hi~0 then 1 else 0)); {34#false} is VALID [2020-07-18 00:49:15,311 INFO L280 TraceCheckUtils]: 15: Hoare triple {34#false} ~cond := #in~cond; {34#false} is VALID [2020-07-18 00:49:15,312 INFO L280 TraceCheckUtils]: 16: Hoare triple {34#false} assume 0 == ~cond; {34#false} is VALID [2020-07-18 00:49:15,312 INFO L280 TraceCheckUtils]: 17: Hoare triple {34#false} assume !false; {34#false} is VALID [2020-07-18 00:49:15,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:49:15,319 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:49:15,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106323785] [2020-07-18 00:49:15,324 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:49:15,324 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-18 00:49:15,325 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268310631] [2020-07-18 00:49:15,332 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-07-18 00:49:15,335 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:49:15,340 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-18 00:49:15,382 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:49:15,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-18 00:49:15,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:49:15,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-18 00:49:15,395 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:49:15,397 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2020-07-18 00:49:15,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:49:15,559 INFO L93 Difference]: Finished difference Result 43 states and 49 transitions. [2020-07-18 00:49:15,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-18 00:49:15,561 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 18 [2020-07-18 00:49:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:49:15,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:49:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2020-07-18 00:49:15,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-18 00:49:15,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 49 transitions. [2020-07-18 00:49:15,590 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 49 transitions. [2020-07-18 00:49:15,691 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 49 edges. 49 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:49:15,703 INFO L225 Difference]: With dead ends: 43 [2020-07-18 00:49:15,703 INFO L226 Difference]: Without dead ends: 23 [2020-07-18 00:49:15,708 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-18 00:49:15,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-18 00:49:15,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-07-18 00:49:15,784 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:49:15,785 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2020-07-18 00:49:15,786 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-18 00:49:15,786 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-18 00:49:15,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:49:15,790 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-07-18 00:49:15,790 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-07-18 00:49:15,791 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:49:15,791 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:49:15,791 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-18 00:49:15,792 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-18 00:49:15,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:49:15,796 INFO L93 Difference]: Finished difference Result 23 states and 23 transitions. [2020-07-18 00:49:15,796 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-07-18 00:49:15,797 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:49:15,797 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:49:15,797 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:49:15,797 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:49:15,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-18 00:49:15,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 23 transitions. [2020-07-18 00:49:15,802 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 23 transitions. Word has length 18 [2020-07-18 00:49:15,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:49:15,802 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 23 transitions. [2020-07-18 00:49:15,803 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-18 00:49:15,803 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 23 states and 23 transitions. [2020-07-18 00:49:15,838 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 23 edges. 23 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:49:15,838 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 23 transitions. [2020-07-18 00:49:15,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-18 00:49:15,840 INFO L414 BasicCegarLoop]: Found error trace [2020-07-18 00:49:15,840 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-18 00:49:15,840 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-18 00:49:15,841 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-18 00:49:15,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-18 00:49:15,841 INFO L82 PathProgramCache]: Analyzing trace with hash -1623753589, now seen corresponding path program 1 times [2020-07-18 00:49:15,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-18 00:49:15,842 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1752244743] [2020-07-18 00:49:15,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-18 00:49:18,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:49:18,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-18 00:49:18,455 INFO L280 TraceCheckUtils]: 0: Hoare triple {218#true} assume true; {218#true} is VALID [2020-07-18 00:49:18,455 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {218#true} {218#true} #56#return; {218#true} is VALID [2020-07-18 00:49:18,456 INFO L263 TraceCheckUtils]: 0: Hoare triple {218#true} call ULTIMATE.init(); {218#true} is VALID [2020-07-18 00:49:18,456 INFO L280 TraceCheckUtils]: 1: Hoare triple {218#true} assume true; {218#true} is VALID [2020-07-18 00:49:18,456 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {218#true} {218#true} #56#return; {218#true} is VALID [2020-07-18 00:49:18,457 INFO L263 TraceCheckUtils]: 3: Hoare triple {218#true} call #t~ret1 := main(); {218#true} is VALID [2020-07-18 00:49:18,457 INFO L280 TraceCheckUtils]: 4: Hoare triple {218#true} havoc ~lo~0; {218#true} is VALID [2020-07-18 00:49:18,457 INFO L280 TraceCheckUtils]: 5: Hoare triple {218#true} havoc ~mid~0; {218#true} is VALID [2020-07-18 00:49:18,458 INFO L280 TraceCheckUtils]: 6: Hoare triple {218#true} havoc ~hi~0; {218#true} is VALID [2020-07-18 00:49:18,459 INFO L280 TraceCheckUtils]: 7: Hoare triple {218#true} ~lo~0 := 0; {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} is VALID [2020-07-18 00:49:18,460 INFO L280 TraceCheckUtils]: 8: Hoare triple {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647; {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} is VALID [2020-07-18 00:49:18,461 INFO L280 TraceCheckUtils]: 9: Hoare triple {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} ~mid~0 := #t~nondet0; {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} is VALID [2020-07-18 00:49:18,462 INFO L280 TraceCheckUtils]: 10: Hoare triple {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} havoc #t~nondet0; {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} is VALID [2020-07-18 00:49:18,463 INFO L280 TraceCheckUtils]: 11: Hoare triple {222#(and (<= main_~lo~0 0) (<= 0 main_~lo~0))} assume !!(~mid~0 > 0 && ~mid~0 <= 1000000); {223#(and (<= main_~lo~0 0) (<= (+ main_~lo~0 2) (* 2 main_~mid~0)) (<= 0 main_~lo~0))} is VALID [2020-07-18 00:49:18,464 INFO L280 TraceCheckUtils]: 12: Hoare triple {223#(and (<= main_~lo~0 0) (<= (+ main_~lo~0 2) (* 2 main_~mid~0)) (<= 0 main_~lo~0))} ~hi~0 := 2 * ~mid~0; {224#(and (<= (+ main_~lo~0 2) main_~hi~0) (<= main_~hi~0 (+ (* 2 main_~mid~0) main_~lo~0)) (<= (+ (* 2 main_~mid~0) main_~lo~0) main_~hi~0))} is VALID [2020-07-18 00:49:18,467 INFO L280 TraceCheckUtils]: 13: Hoare triple {224#(and (<= (+ main_~lo~0 2) main_~hi~0) (<= main_~hi~0 (+ (* 2 main_~mid~0) main_~lo~0)) (<= (+ (* 2 main_~mid~0) main_~lo~0) main_~hi~0))} [62] L19-2-->L19-3_primed: Formula: (or (and (<= (* (- 2) v_oct_main_~mid~0_in_1) (- 2)) (<= (+ (* (- 1) v_oct_main_~mid~0_out_1) v_oct_main_~mid~0_in_1) 1) (<= (+ (* (- 1) v_oct_main_~hi~0_in_1) v_oct_main_~hi~0_out_1) (- 1)) (<= (+ (* (- 1) v_oct_main_~mid~0_in_1) v_oct_main_~mid~0_out_1) (- 1)) (<= (+ (* (- 1) v_oct_main_~lo~0_out_1) v_oct_main_~lo~0_in_1) (- 1)) (<= (+ (* (- 1) v_oct_main_~lo~0_in_1) v_oct_main_~lo~0_out_1) 1) (<= (+ (* (- 1) v_oct_main_~hi~0_out_1) v_oct_main_~hi~0_in_1) 1)) (let ((.cse0 (+ v_oct_main_~hi~0_out_1 v_oct_main_~mid~0_in_1))) (and (<= (+ v_oct_main_~hi~0_in_1 v_oct_main_~mid~0_out_1) .cse0) (<= (+ v_oct_main_~lo~0_out_1 v_oct_main_~hi~0_out_1) (+ v_oct_main_~hi~0_in_1 v_oct_main_~lo~0_in_1)) (<= v_oct_main_~hi~0_in_1 .cse0) (<= (+ v_oct_main_~mid~0_out_1 2) v_oct_main_~mid~0_in_1) (<= (+ v_oct_main_~lo~0_in_1 v_oct_main_~mid~0_in_1) (+ v_oct_main_~lo~0_out_1 v_oct_main_~mid~0_out_1))))) InVars {main_~lo~0=v_oct_main_~lo~0_in_1, main_~mid~0=v_oct_main_~mid~0_in_1, main_~hi~0=v_oct_main_~hi~0_in_1} OutVars{main_~lo~0=v_oct_main_~lo~0_out_1, main_~mid~0=v_oct_main_~mid~0_out_1, main_~hi~0=v_oct_main_~hi~0_out_1} AuxVars[] AssignedVars[main_~lo~0, main_~mid~0, main_~hi~0] {225#(and (or (<= main_~hi~0 main_~lo~0) (<= main_~hi~0 (+ (* 2 main_~mid~0) main_~lo~0))) (<= main_~lo~0 main_~hi~0))} is VALID [2020-07-18 00:49:18,468 INFO L280 TraceCheckUtils]: 14: Hoare triple {225#(and (or (<= main_~hi~0 main_~lo~0) (<= main_~hi~0 (+ (* 2 main_~mid~0) main_~lo~0))) (<= main_~lo~0 main_~hi~0))} [61] L19-3_primed-->L19-3: Formula: (not (< 0 v_main_~mid~0_1)) InVars {main_~mid~0=v_main_~mid~0_1} OutVars{main_~mid~0=v_main_~mid~0_1} AuxVars[] AssignedVars[] {226#(and (<= main_~hi~0 main_~lo~0) (<= main_~lo~0 main_~hi~0))} is VALID [2020-07-18 00:49:18,470 INFO L263 TraceCheckUtils]: 15: Hoare triple {226#(and (<= main_~hi~0 main_~lo~0) (<= main_~lo~0 main_~hi~0))} call __VERIFIER_assert((if ~lo~0 == ~hi~0 then 1 else 0)); {227#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-18 00:49:18,471 INFO L280 TraceCheckUtils]: 16: Hoare triple {227#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {228#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-18 00:49:18,472 INFO L280 TraceCheckUtils]: 17: Hoare triple {228#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {219#false} is VALID [2020-07-18 00:49:18,472 INFO L280 TraceCheckUtils]: 18: Hoare triple {219#false} assume !false; {219#false} is VALID [2020-07-18 00:49:18,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-18 00:49:18,635 INFO L192 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-18 00:49:18,636 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1752244743] [2020-07-18 00:49:18,636 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-18 00:49:18,636 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-18 00:49:18,636 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466185126] [2020-07-18 00:49:18,637 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-07-18 00:49:18,638 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-18 00:49:18,638 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-18 00:49:18,669 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:49:18,669 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-18 00:49:18,669 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-18 00:49:18,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-18 00:49:18,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2020-07-18 00:49:18,670 INFO L87 Difference]: Start difference. First operand 23 states and 23 transitions. Second operand 11 states. [2020-07-18 00:49:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:49:19,091 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2020-07-18 00:49:19,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-18 00:49:19,092 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2020-07-18 00:49:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-18 00:49:19,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 00:49:19,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 24 transitions. [2020-07-18 00:49:19,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-18 00:49:19,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 24 transitions. [2020-07-18 00:49:19,096 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 24 transitions. [2020-07-18 00:49:19,130 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:49:19,130 INFO L225 Difference]: With dead ends: 24 [2020-07-18 00:49:19,131 INFO L226 Difference]: Without dead ends: 0 [2020-07-18 00:49:19,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2020-07-18 00:49:19,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-18 00:49:19,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-18 00:49:19,133 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-18 00:49:19,133 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-18 00:49:19,133 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 00:49:19,133 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 00:49:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:49:19,134 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 00:49:19,134 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:49:19,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:49:19,134 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:49:19,135 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-18 00:49:19,135 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-18 00:49:19,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-18 00:49:19,135 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-18 00:49:19,135 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:49:19,136 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:49:19,136 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-18 00:49:19,136 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-18 00:49:19,136 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-18 00:49:19,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-18 00:49:19,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-18 00:49:19,137 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2020-07-18 00:49:19,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-18 00:49:19,137 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-18 00:49:19,137 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-18 00:49:19,137 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 0 states and 0 transitions. [2020-07-18 00:49:19,137 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-18 00:49:19,138 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-18 00:49:19,138 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-18 00:49:19,138 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-18 00:49:19,140 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-18 00:49:19,372 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-18 00:49:19,372 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-18 00:49:19,372 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-18 00:49:19,372 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-18 00:49:19,372 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-18 00:49:19,372 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-18 00:49:19,373 INFO L268 CegarLoopResult]: For program point L4-3(lines 3 5) no Hoare annotation was computed. [2020-07-18 00:49:19,373 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-18 00:49:19,373 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-18 00:49:19,373 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-07-18 00:49:19,373 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-18 00:49:19,373 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 13 26) the Hoare annotation is: true [2020-07-18 00:49:19,374 INFO L264 CegarLoopResult]: At program point L21(line 21) the Hoare annotation is: (let ((.cse1 (+ (* 2 main_~mid~0) main_~lo~0)) (.cse0 (+ main_~hi~0 1))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= (+ main_~lo~0 1) main_~hi~0))) [2020-07-18 00:49:19,374 INFO L264 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: (and (<= main_~lo~0 0) (<= 0 main_~lo~0)) [2020-07-18 00:49:19,374 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= main_~hi~0 .cse0) (<= .cse0 main_~hi~0) (<= main_~lo~0 main_~hi~0))) [2020-07-18 00:49:19,374 INFO L271 CegarLoopResult]: At program point L17-1(line 17) the Hoare annotation is: true [2020-07-18 00:49:19,374 INFO L264 CegarLoopResult]: At program point L19-3(lines 19 23) the Hoare annotation is: (and (<= main_~hi~0 (+ (* 2 main_~mid~0) main_~lo~0)) (<= main_~mid~0 0) (<= main_~lo~0 main_~hi~0)) [2020-07-18 00:49:19,375 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-18 00:49:19,375 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 13 26) the Hoare annotation is: true [2020-07-18 00:49:19,375 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 26) the Hoare annotation is: true [2020-07-18 00:49:19,375 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-07-18 00:49:19,375 INFO L264 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: (let ((.cse1 (+ main_~hi~0 2)) (.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (<= main_~lo~0 main_~hi~0))) [2020-07-18 00:49:19,376 INFO L264 CegarLoopResult]: At program point L20(line 20) the Hoare annotation is: (let ((.cse0 (+ (* 2 main_~mid~0) main_~lo~0))) (and (<= (+ main_~lo~0 2) main_~hi~0) (<= main_~hi~0 .cse0) (<= .cse0 main_~hi~0))) [2020-07-18 00:49:19,376 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (<= main_~lo~0 0) (<= (+ main_~lo~0 2) (* 2 main_~mid~0)) (<= 0 main_~lo~0)) [2020-07-18 00:49:19,376 INFO L264 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: (and (<= main_~lo~0 0) (<= 0 main_~lo~0)) [2020-07-18 00:49:19,376 INFO L264 CegarLoopResult]: At program point L16-1(line 16) the Hoare annotation is: (and (<= main_~lo~0 0) (<= 0 main_~lo~0)) [2020-07-18 00:49:19,376 INFO L271 CegarLoopResult]: At program point L14(line 14) the Hoare annotation is: true [2020-07-18 00:49:19,376 INFO L264 CegarLoopResult]: At program point L16-2(line 16) the Hoare annotation is: (and (<= main_~lo~0 0) (<= 0 main_~lo~0)) [2020-07-18 00:49:19,377 INFO L271 CegarLoopResult]: At program point L14-1(line 14) the Hoare annotation is: true [2020-07-18 00:49:19,377 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-18 00:49:19,377 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertEXIT(lines 6 11) the Hoare annotation is: true [2020-07-18 00:49:19,377 INFO L264 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 00:49:19,377 INFO L264 CegarLoopResult]: At program point L7(lines 7 9) the Hoare annotation is: (or (= 0 |__VERIFIER_assert_#in~cond|) (not (= 0 __VERIFIER_assert_~cond))) [2020-07-18 00:49:19,377 INFO L271 CegarLoopResult]: At program point L7-2(lines 6 11) the Hoare annotation is: true [2020-07-18 00:49:19,378 INFO L264 CegarLoopResult]: At program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) the Hoare annotation is: (= 0 |__VERIFIER_assert_#in~cond|) [2020-07-18 00:49:19,382 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-18 00:49:19,383 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 00:49:19,383 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-18 00:49:19,384 WARN L170 areAnnotationChecker]: L4-1 has no Hoare annotation [2020-07-18 00:49:19,384 WARN L170 areAnnotationChecker]: L4-3 has no Hoare annotation [2020-07-18 00:49:19,393 INFO L163 areAnnotationChecker]: CFG has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-18 00:49:19,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.07 12:49:19 BoogieIcfgContainer [2020-07-18 00:49:19,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-18 00:49:19,407 INFO L168 Benchmark]: Toolchain (without parser) took 5281.26 ms. Allocated memory was 136.8 MB in the beginning and 246.4 MB in the end (delta: 109.6 MB). Free memory was 102.0 MB in the beginning and 173.2 MB in the end (delta: -71.3 MB). Peak memory consumption was 38.3 MB. Max. memory is 7.1 GB. [2020-07-18 00:49:19,409 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-18 00:49:19,409 INFO L168 Benchmark]: CACSL2BoogieTranslator took 243.56 ms. Allocated memory is still 136.8 MB. Free memory was 101.8 MB in the beginning and 92.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-18 00:49:19,410 INFO L168 Benchmark]: Boogie Preprocessor took 34.61 ms. Allocated memory is still 136.8 MB. Free memory was 92.1 MB in the beginning and 90.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. [2020-07-18 00:49:19,411 INFO L168 Benchmark]: RCFGBuilder took 593.68 ms. Allocated memory was 136.8 MB in the beginning and 204.5 MB in the end (delta: 67.6 MB). Free memory was 90.5 MB in the beginning and 165.7 MB in the end (delta: -75.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:49:19,412 INFO L168 Benchmark]: TraceAbstraction took 4398.98 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 165.7 MB in the beginning and 173.2 MB in the end (delta: -7.5 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-07-18 00:49:19,416 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 0.19 ms. Allocated memory is still 136.8 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 243.56 ms. Allocated memory is still 136.8 MB. Free memory was 101.8 MB in the beginning and 92.1 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 34.61 ms. Allocated memory is still 136.8 MB. Free memory was 92.1 MB in the beginning and 90.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 593.68 ms. Allocated memory was 136.8 MB in the beginning and 204.5 MB in the end (delta: 67.6 MB). Free memory was 90.5 MB in the beginning and 165.7 MB in the end (delta: -75.2 MB). Peak memory consumption was 14.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4398.98 ms. Allocated memory was 204.5 MB in the beginning and 246.4 MB in the end (delta: 41.9 MB). Free memory was 165.7 MB in the beginning and 173.2 MB in the end (delta: -7.5 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 8]: 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: 19]: Loop Invariant Derived loop invariant: (hi <= 2 * mid + lo && 2 * mid + lo <= hi) && lo <= hi - ProcedureContractResult [Line: 13]: Procedure Contract for main Derived contract for procedure main: 1 - ProcedureContractResult [Line: 6]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 35 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.2s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 11 SDslu, 93 SDs, 0 SdLazy, 89 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 30 LocationsWithAnnotation, 36 PreInvPairs, 46 NumberOfFragments, 171 HoareAnnotationTreeSize, 36 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 30 FomulaSimplificationsInter, 81 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...