/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/loop-invgen/id_build.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-8fc6572 [2020-07-10 15:28:49,290 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-10 15:28:49,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-10 15:28:49,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-10 15:28:49,316 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-10 15:28:49,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-10 15:28:49,322 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-10 15:28:49,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-10 15:28:49,340 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-10 15:28:49,341 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-10 15:28:49,342 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-10 15:28:49,344 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-10 15:28:49,344 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-10 15:28:49,345 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-10 15:28:49,348 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-10 15:28:49,350 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-10 15:28:49,353 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-10 15:28:49,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-10 15:28:49,358 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-10 15:28:49,359 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-10 15:28:49,361 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-10 15:28:49,362 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-10 15:28:49,363 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-10 15:28:49,364 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-10 15:28:49,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-10 15:28:49,374 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-10 15:28:49,375 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-10 15:28:49,376 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-10 15:28:49,378 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-10 15:28:49,394 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-10 15:28:49,395 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-10 15:28:49,397 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-10 15:28:49,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-10 15:28:49,398 INFO L138 SettingsManager]: * Use SBE=true [2020-07-10 15:28:49,398 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-10 15:28:49,399 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-10 15:28:49,399 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-10 15:28:49,399 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-10 15:28:49,399 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-10 15:28:49,400 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-10 15:28:49,400 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-10 15:28:49,400 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-10 15:28:49,400 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-10 15:28:49,400 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-10 15:28:49,401 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-10 15:28:49,401 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-10 15:28:49,401 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-10 15:28:49,401 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-10 15:28:49,402 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-10 15:28:49,402 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-10 15:28:49,402 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:28:49,402 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-10 15:28:49,403 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-10 15:28:49,403 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-10 15:28:49,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-10 15:28:49,403 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-10 15:28:49,404 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-10 15:28:49,404 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-10 15:28:49,404 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-10 15:28:49,760 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-10 15:28:49,776 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-10 15:28:49,780 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-10 15:28:49,782 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-10 15:28:49,782 INFO L275 PluginConnector]: CDTParser initialized [2020-07-10 15:28:49,784 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-invgen/id_build.i [2020-07-10 15:28:49,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a6f5bc1/cddf162a49aa4c609d340064bfa63a17/FLAGa4cb390c5 [2020-07-10 15:28:50,528 INFO L306 CDTParser]: Found 1 translation units. [2020-07-10 15:28:50,530 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build.i [2020-07-10 15:28:50,544 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a6f5bc1/cddf162a49aa4c609d340064bfa63a17/FLAGa4cb390c5 [2020-07-10 15:28:50,861 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c5a6f5bc1/cddf162a49aa4c609d340064bfa63a17 [2020-07-10 15:28:50,874 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-10 15:28:50,876 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-10 15:28:50,878 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-10 15:28:50,878 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-10 15:28:50,883 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-10 15:28:50,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,890 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42a2545f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:50, skipping insertion in model container [2020-07-10 15:28:50,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.07 03:28:50" (1/1) ... [2020-07-10 15:28:50,902 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-10 15:28:50,927 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-10 15:28:51,153 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:28:51,162 INFO L203 MainTranslator]: Completed pre-run [2020-07-10 15:28:51,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-10 15:28:51,211 INFO L208 MainTranslator]: Completed translation [2020-07-10 15:28:51,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51 WrapperNode [2020-07-10 15:28:51,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-10 15:28:51,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-10 15:28:51,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-10 15:28:51,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-10 15:28:51,233 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,233 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,344 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,345 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,361 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,362 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... [2020-07-10 15:28:51,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-10 15:28:51,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-10 15:28:51,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-10 15:28:51,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-10 15:28:51,367 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-10 15:28:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-10 15:28:51,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-10 15:28:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-07-10 15:28:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-10 15:28:51,451 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-10 15:28:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-10 15:28:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-07-10 15:28:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-07-10 15:28:51,452 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-10 15:28:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-10 15:28:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-10 15:28:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-10 15:28:51,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-10 15:28:51,780 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-10 15:28:51,781 INFO L295 CfgBuilder]: Removed 2 assume(true) statements. [2020-07-10 15:28:51,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:28:51 BoogieIcfgContainer [2020-07-10 15:28:51,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-10 15:28:51,789 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-10 15:28:51,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-10 15:28:51,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-10 15:28:51,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.07 03:28:50" (1/3) ... [2020-07-10 15:28:51,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6ad785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:28:51, skipping insertion in model container [2020-07-10 15:28:51,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.07 03:28:51" (2/3) ... [2020-07-10 15:28:51,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d6ad785 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.07 03:28:51, skipping insertion in model container [2020-07-10 15:28:51,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.07 03:28:51" (3/3) ... [2020-07-10 15:28:51,799 INFO L109 eAbstractionObserver]: Analyzing ICFG id_build.i [2020-07-10 15:28:51,814 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-10 15:28:51,831 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-10 15:28:51,856 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-10 15:28:51,893 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-10 15:28:51,893 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-10 15:28:51,893 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-10 15:28:51,894 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-10 15:28:51,894 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-10 15:28:51,894 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-10 15:28:51,894 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-10 15:28:51,894 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-10 15:28:51,930 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-07-10 15:28:51,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-10 15:28:51,940 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:51,941 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:51,942 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:51,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:51,950 INFO L82 PathProgramCache]: Analyzing trace with hash 292259706, now seen corresponding path program 1 times [2020-07-10 15:28:51,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:51,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275620155] [2020-07-10 15:28:51,967 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:52,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:52,300 INFO L280 TraceCheckUtils]: 0: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-10 15:28:52,301 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {25#true} {25#true} #54#return; {25#true} is VALID [2020-07-10 15:28:52,303 INFO L263 TraceCheckUtils]: 0: Hoare triple {25#true} call ULTIMATE.init(); {25#true} is VALID [2020-07-10 15:28:52,304 INFO L280 TraceCheckUtils]: 1: Hoare triple {25#true} assume true; {25#true} is VALID [2020-07-10 15:28:52,304 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {25#true} {25#true} #54#return; {25#true} is VALID [2020-07-10 15:28:52,305 INFO L263 TraceCheckUtils]: 3: Hoare triple {25#true} call #t~ret3 := main(); {25#true} is VALID [2020-07-10 15:28:52,306 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#true} havoc ~offset~0;havoc ~length~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~nlen~0 := #t~nondet0;havoc #t~nondet0;havoc ~i~0;havoc ~j~0;~i~0 := 0; {25#true} is VALID [2020-07-10 15:28:52,308 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#true} assume !!(~i~0 < ~nlen~0);~j~0 := 0; {29#(<= (+ main_~i~0 1) main_~nlen~0)} is VALID [2020-07-10 15:28:52,310 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#(<= (+ main_~i~0 1) main_~nlen~0)} assume !!(~j~0 < 8); {29#(<= (+ main_~i~0 1) main_~nlen~0)} is VALID [2020-07-10 15:28:52,313 INFO L263 TraceCheckUtils]: 7: Hoare triple {29#(<= (+ main_~i~0 1) main_~nlen~0)} call __VERIFIER_assert((if 0 <= ~nlen~0 - 1 - ~i~0 then 1 else 0)); {30#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 15:28:52,315 INFO L280 TraceCheckUtils]: 8: Hoare triple {30#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {31#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:28:52,319 INFO L280 TraceCheckUtils]: 9: Hoare triple {31#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {26#false} is VALID [2020-07-10 15:28:52,319 INFO L280 TraceCheckUtils]: 10: Hoare triple {26#false} assume !false; {26#false} is VALID [2020-07-10 15:28:52,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:28:52,322 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275620155] [2020-07-10 15:28:52,323 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:28:52,323 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:28:52,324 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [860465] [2020-07-10 15:28:52,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:28:52,336 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:28:52,340 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:28:52,373 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:52,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:28:52,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:28:52,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:28:52,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:28:52,387 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 5 states. [2020-07-10 15:28:52,659 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,660 INFO L93 Difference]: Finished difference Result 43 states and 55 transitions. [2020-07-10 15:28:52,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:28:52,660 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-10 15:28:52,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:28:52,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:52,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-10 15:28:52,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:52,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-10 15:28:52,683 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 55 transitions. [2020-07-10 15:28:52,827 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:52,843 INFO L225 Difference]: With dead ends: 43 [2020-07-10 15:28:52,843 INFO L226 Difference]: Without dead ends: 21 [2020-07-10 15:28:52,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-10 15:28:52,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2020-07-10 15:28:52,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2020-07-10 15:28:52,906 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:28:52,907 INFO L82 GeneralOperation]: Start isEquivalent. First operand 21 states. Second operand 21 states. [2020-07-10 15:28:52,908 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2020-07-10 15:28:52,908 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2020-07-10 15:28:52,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,913 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-07-10 15:28:52,914 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-07-10 15:28:52,914 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:52,915 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:52,915 INFO L74 IsIncluded]: Start isIncluded. First operand 21 states. Second operand 21 states. [2020-07-10 15:28:52,916 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 21 states. [2020-07-10 15:28:52,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:52,919 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-07-10 15:28:52,920 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-07-10 15:28:52,920 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:52,921 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:52,921 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:28:52,921 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:28:52,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2020-07-10 15:28:52,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2020-07-10 15:28:52,927 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 11 [2020-07-10 15:28:52,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:28:52,928 INFO L479 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2020-07-10 15:28:52,928 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:28:52,928 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2020-07-10 15:28:52,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-10 15:28:52,929 INFO L414 BasicCegarLoop]: Found error trace [2020-07-10 15:28:52,929 INFO L422 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-10 15:28:52,930 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-10 15:28:52,930 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-10 15:28:52,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-10 15:28:52,931 INFO L82 PathProgramCache]: Analyzing trace with hash 1546928273, now seen corresponding path program 1 times [2020-07-10 15:28:52,931 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-10 15:28:52,931 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376683623] [2020-07-10 15:28:52,932 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-10 15:28:52,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:53,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:53,026 INFO L280 TraceCheckUtils]: 0: Hoare triple {167#true} assume true; {167#true} is VALID [2020-07-10 15:28:53,027 INFO L275 TraceCheckUtils]: 1: Hoare quadruple {167#true} {167#true} #54#return; {167#true} is VALID [2020-07-10 15:28:53,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-10 15:28:53,041 INFO L280 TraceCheckUtils]: 0: Hoare triple {167#true} ~cond := #in~cond; {167#true} is VALID [2020-07-10 15:28:53,042 INFO L280 TraceCheckUtils]: 1: Hoare triple {167#true} assume !(0 == ~cond); {167#true} is VALID [2020-07-10 15:28:53,042 INFO L280 TraceCheckUtils]: 2: Hoare triple {167#true} assume true; {167#true} is VALID [2020-07-10 15:28:53,044 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {167#true} {171#(<= 0 main_~i~0)} #58#return; {171#(<= 0 main_~i~0)} is VALID [2020-07-10 15:28:53,045 INFO L263 TraceCheckUtils]: 0: Hoare triple {167#true} call ULTIMATE.init(); {167#true} is VALID [2020-07-10 15:28:53,045 INFO L280 TraceCheckUtils]: 1: Hoare triple {167#true} assume true; {167#true} is VALID [2020-07-10 15:28:53,046 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {167#true} {167#true} #54#return; {167#true} is VALID [2020-07-10 15:28:53,046 INFO L263 TraceCheckUtils]: 3: Hoare triple {167#true} call #t~ret3 := main(); {167#true} is VALID [2020-07-10 15:28:53,048 INFO L280 TraceCheckUtils]: 4: Hoare triple {167#true} havoc ~offset~0;havoc ~length~0;assume -2147483648 <= #t~nondet0 && #t~nondet0 <= 2147483647;~nlen~0 := #t~nondet0;havoc #t~nondet0;havoc ~i~0;havoc ~j~0;~i~0 := 0; {171#(<= 0 main_~i~0)} is VALID [2020-07-10 15:28:53,050 INFO L280 TraceCheckUtils]: 5: Hoare triple {171#(<= 0 main_~i~0)} assume !!(~i~0 < ~nlen~0);~j~0 := 0; {171#(<= 0 main_~i~0)} is VALID [2020-07-10 15:28:53,050 INFO L280 TraceCheckUtils]: 6: Hoare triple {171#(<= 0 main_~i~0)} assume !!(~j~0 < 8); {171#(<= 0 main_~i~0)} is VALID [2020-07-10 15:28:53,051 INFO L263 TraceCheckUtils]: 7: Hoare triple {171#(<= 0 main_~i~0)} call __VERIFIER_assert((if 0 <= ~nlen~0 - 1 - ~i~0 then 1 else 0)); {167#true} is VALID [2020-07-10 15:28:53,051 INFO L280 TraceCheckUtils]: 8: Hoare triple {167#true} ~cond := #in~cond; {167#true} is VALID [2020-07-10 15:28:53,052 INFO L280 TraceCheckUtils]: 9: Hoare triple {167#true} assume !(0 == ~cond); {167#true} is VALID [2020-07-10 15:28:53,052 INFO L280 TraceCheckUtils]: 10: Hoare triple {167#true} assume true; {167#true} is VALID [2020-07-10 15:28:53,054 INFO L275 TraceCheckUtils]: 11: Hoare quadruple {167#true} {171#(<= 0 main_~i~0)} #58#return; {171#(<= 0 main_~i~0)} is VALID [2020-07-10 15:28:53,057 INFO L263 TraceCheckUtils]: 12: Hoare triple {171#(<= 0 main_~i~0)} call __VERIFIER_assert((if ~nlen~0 - 1 - ~i~0 < ~nlen~0 then 1 else 0)); {176#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-10 15:28:53,059 INFO L280 TraceCheckUtils]: 13: Hoare triple {176#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {177#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-10 15:28:53,060 INFO L280 TraceCheckUtils]: 14: Hoare triple {177#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {168#false} is VALID [2020-07-10 15:28:53,060 INFO L280 TraceCheckUtils]: 15: Hoare triple {168#false} assume !false; {168#false} is VALID [2020-07-10 15:28:53,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-10 15:28:53,063 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376683623] [2020-07-10 15:28:53,063 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-10 15:28:53,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-10 15:28:53,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239134819] [2020-07-10 15:28:53,067 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-10 15:28:53,068 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-10 15:28:53,068 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-10 15:28:53,098 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:53,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-10 15:28:53,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-10 15:28:53,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-10 15:28:53,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-10 15:28:53,100 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 5 states. [2020-07-10 15:28:53,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:53,256 INFO L93 Difference]: Finished difference Result 21 states and 22 transitions. [2020-07-10 15:28:53,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-10 15:28:53,257 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 16 [2020-07-10 15:28:53,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-10 15:28:53,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:53,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2020-07-10 15:28:53,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-10 15:28:53,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 22 transitions. [2020-07-10 15:28:53,263 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 22 transitions. [2020-07-10 15:28:53,302 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-10 15:28:53,303 INFO L225 Difference]: With dead ends: 21 [2020-07-10 15:28:53,303 INFO L226 Difference]: Without dead ends: 0 [2020-07-10 15:28:53,305 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-10 15:28:53,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-10 15:28:53,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-10 15:28:53,306 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-10 15:28:53,306 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:53,306 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:53,307 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:53,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:53,307 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:28:53,307 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:28:53,307 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:53,308 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:53,308 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:53,308 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-10 15:28:53,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-10 15:28:53,309 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-10 15:28:53,309 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:28:53,309 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:53,309 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-10 15:28:53,309 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-10 15:28:53,310 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-10 15:28:53,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-10 15:28:53,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-10 15:28:53,310 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-10 15:28:53,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-10 15:28:53,311 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-10 15:28:53,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-10 15:28:53,311 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-10 15:28:53,311 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-10 15:28:53,311 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-10 15:28:53,314 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-10 15:28:53,405 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-10 15:28:53,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:28:53,405 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-10 15:28:53,406 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-10 15:28:53,406 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-10 15:28:53,406 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-10 15:28:53,406 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 3 5) no Hoare annotation was computed. [2020-07-10 15:28:53,406 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-07-10 15:28:53,406 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 5) no Hoare annotation was computed. [2020-07-10 15:28:53,407 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 3 5) no Hoare annotation was computed. [2020-07-10 15:28:53,407 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 13 23) no Hoare annotation was computed. [2020-07-10 15:28:53,407 INFO L268 CegarLoopResult]: For program point L19(lines 17 20) no Hoare annotation was computed. [2020-07-10 15:28:53,407 INFO L264 CegarLoopResult]: At program point L17-2(lines 17 20) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2020-07-10 15:28:53,407 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 13 23) no Hoare annotation was computed. [2020-07-10 15:28:53,407 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 13 23) the Hoare annotation is: true [2020-07-10 15:28:53,408 INFO L264 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2020-07-10 15:28:53,408 INFO L264 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: (and (<= 0 main_~i~0) (<= (+ main_~i~0 1) main_~nlen~0)) [2020-07-10 15:28:53,408 INFO L268 CegarLoopResult]: For program point L16-2(lines 16 21) no Hoare annotation was computed. [2020-07-10 15:28:53,408 INFO L264 CegarLoopResult]: At program point L16-3(lines 16 21) the Hoare annotation is: (<= 0 main_~i~0) [2020-07-10 15:28:53,408 INFO L268 CegarLoopResult]: For program point L16-4(lines 16 21) no Hoare annotation was computed. [2020-07-10 15:28:53,409 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 6 11) the Hoare annotation is: true [2020-07-10 15:28:53,409 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 6 11) no Hoare annotation was computed. [2020-07-10 15:28:53,409 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-07-10 15:28:53,409 INFO L268 CegarLoopResult]: For program point L7(lines 7 9) no Hoare annotation was computed. [2020-07-10 15:28:53,409 INFO L268 CegarLoopResult]: For program point L7-2(lines 6 11) no Hoare annotation was computed. [2020-07-10 15:28:53,409 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 8) no Hoare annotation was computed. [2020-07-10 15:28:53,414 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:28:53,415 WARN L170 areAnnotationChecker]: assume_abort_if_notENTRY has no Hoare annotation [2020-07-10 15:28:53,416 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:28:53,416 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-10 15:28:53,417 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:28:53,417 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:53,417 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-10 15:28:53,417 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2020-07-10 15:28:53,417 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: L7 has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: L16-4 has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 15:28:53,419 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 15:28:53,421 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:28:53,421 WARN L170 areAnnotationChecker]: L8 has no Hoare annotation [2020-07-10 15:28:53,421 WARN L170 areAnnotationChecker]: L7-2 has no Hoare annotation [2020-07-10 15:28:53,421 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-10 15:28:53,422 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-10 15:28:53,422 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:53,422 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-10 15:28:53,422 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-10 15:28:53,422 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 15:28:53,422 WARN L170 areAnnotationChecker]: L19 has no Hoare annotation [2020-07-10 15:28:53,423 INFO L163 areAnnotationChecker]: CFG has 7 edges. 7 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-10 15:28:53,436 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.07 03:28:53 BoogieIcfgContainer [2020-07-10 15:28:53,437 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-10 15:28:53,441 INFO L168 Benchmark]: Toolchain (without parser) took 2564.48 ms. Allocated memory was 134.7 MB in the beginning and 224.9 MB in the end (delta: 90.2 MB). Free memory was 99.4 MB in the beginning and 165.1 MB in the end (delta: -65.7 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,442 INFO L168 Benchmark]: CDTParser took 1.17 ms. Allocated memory is still 134.7 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,443 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.91 ms. Allocated memory is still 134.7 MB. Free memory was 99.0 MB in the beginning and 89.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,444 INFO L168 Benchmark]: Boogie Preprocessor took 151.04 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 89.3 MB in the beginning and 178.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,445 INFO L168 Benchmark]: RCFGBuilder took 423.12 ms. Allocated memory is still 199.2 MB. Free memory was 177.3 MB in the beginning and 159.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,446 INFO L168 Benchmark]: TraceAbstraction took 1647.37 ms. Allocated memory was 199.2 MB in the beginning and 224.9 MB in the end (delta: 25.7 MB). Free memory was 158.7 MB in the beginning and 165.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2020-07-10 15:28:53,451 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 1.17 ms. Allocated memory is still 134.7 MB. Free memory was 117.8 MB in the beginning and 117.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 334.91 ms. Allocated memory is still 134.7 MB. Free memory was 99.0 MB in the beginning and 89.3 MB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 151.04 ms. Allocated memory was 134.7 MB in the beginning and 199.2 MB in the end (delta: 64.5 MB). Free memory was 89.3 MB in the beginning and 178.0 MB in the end (delta: -88.7 MB). Peak memory consumption was 14.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 423.12 ms. Allocated memory is still 199.2 MB. Free memory was 177.3 MB in the beginning and 159.4 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1647.37 ms. Allocated memory was 199.2 MB in the beginning and 224.9 MB in the end (delta: 25.7 MB). Free memory was 158.7 MB in the beginning and 165.1 MB in the end (delta: -6.5 MB). Peak memory consumption was 19.2 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: 16]: Loop Invariant Derived loop invariant: 0 <= i - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 0 <= i && i + 1 <= nlen - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.4s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 35 SDtfs, 14 SDslu, 82 SDs, 0 SdLazy, 33 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 9 LocationsWithAnnotation, 12 PreInvPairs, 16 NumberOfFragments, 35 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 675 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 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...