/usr/bin/java -ea -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops/trex02-1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 22:50:40,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 22:50:40,964 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 22:50:40,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 22:50:40,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 22:50:40,978 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 22:50:40,980 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 22:50:40,982 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 22:50:40,983 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 22:50:40,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 22:50:40,985 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 22:50:40,986 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 22:50:40,987 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 22:50:40,987 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 22:50:40,988 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 22:50:40,989 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 22:50:40,990 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 22:50:40,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 22:50:40,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 22:50:40,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 22:50:40,997 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 22:50:40,998 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 22:50:40,999 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 22:50:41,000 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 22:50:41,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 22:50:41,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 22:50:41,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 22:50:41,018 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 22:50:41,019 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-17 22:50:41,046 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 22:50:41,047 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 22:50:41,049 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-17 22:50:41,050 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-17 22:50:41,050 INFO L138 SettingsManager]: * Use SBE=true [2020-07-17 22:50:41,050 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 22:50:41,050 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 22:50:41,050 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 22:50:41,051 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 22:50:41,051 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 22:50:41,052 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 22:50:41,052 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 22:50:41,052 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 22:50:41,053 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 22:50:41,053 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 22:50:41,053 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 22:50:41,053 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 22:50:41,053 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 22:50:41,054 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-17 22:50:41,054 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 22:50:41,054 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 22:50:41,054 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:41,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 22:50:41,055 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-17 22:50:41,055 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-17 22:50:41,055 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-17 22:50:41,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-17 22:50:41,056 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 22:50:41,056 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-17 22:50:41,056 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-17 22:50:41,346 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 22:50:41,360 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 22:50:41,363 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 22:50:41,365 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 22:50:41,365 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 22:50:41,366 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/trex02-1.c [2020-07-17 22:50:41,439 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7395ca120/d4c0f73cf10448589239ec4d38af15d7/FLAG1afabe54d [2020-07-17 22:50:41,932 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 22:50:41,932 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/trex02-1.c [2020-07-17 22:50:41,939 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7395ca120/d4c0f73cf10448589239ec4d38af15d7/FLAG1afabe54d [2020-07-17 22:50:42,278 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7395ca120/d4c0f73cf10448589239ec4d38af15d7 [2020-07-17 22:50:42,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 22:50:42,290 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 22:50:42,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:42,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 22:50:42,295 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 22:50:42,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@367d8e8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42, skipping insertion in model container [2020-07-17 22:50:42,300 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,308 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 22:50:42,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 22:50:42,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:42,517 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 22:50:42,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 22:50:42,555 INFO L208 MainTranslator]: Completed translation [2020-07-17 22:50:42,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42 WrapperNode [2020-07-17 22:50:42,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 22:50:42,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 22:50:42,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 22:50:42,558 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 22:50:42,569 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,569 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,678 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,679 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... [2020-07-17 22:50:42,680 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 22:50:42,681 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 22:50:42,681 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 22:50:42,681 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 22:50:42,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 22:50:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 22:50:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 22:50:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-07-17 22:50:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure foo [2020-07-17 22:50:42,747 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure foo [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 22:50:42,748 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 22:50:42,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 22:50:43,022 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 22:50:43,023 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 22:50:43,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:43 BoogieIcfgContainer [2020-07-17 22:50:43,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 22:50:43,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 22:50:43,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 22:50:43,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 22:50:43,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 10:50:42" (1/3) ... [2020-07-17 22:50:43,038 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e02223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:43, skipping insertion in model container [2020-07-17 22:50:43,038 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 10:50:42" (2/3) ... [2020-07-17 22:50:43,039 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e02223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 10:50:43, skipping insertion in model container [2020-07-17 22:50:43,039 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 10:50:43" (3/3) ... [2020-07-17 22:50:43,042 INFO L109 eAbstractionObserver]: Analyzing ICFG trex02-1.c [2020-07-17 22:50:43,060 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-17 22:50:43,067 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 22:50:43,084 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 22:50:43,111 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 22:50:43,111 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 22:50:43,111 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-17 22:50:43,112 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 22:50:43,112 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 22:50:43,112 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 22:50:43,112 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 22:50:43,112 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 22:50:43,134 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-07-17 22:50:43,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:50:43,140 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:43,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:43,141 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:43,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:43,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1873481772, now seen corresponding path program 1 times [2020-07-17 22:50:43,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:43,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759976740] [2020-07-17 22:50:43,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:43,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:43,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:43,348 INFO L280 TraceCheckUtils]: 0: Hoare triple {32#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {27#true} is VALID [2020-07-17 22:50:43,348 INFO L280 TraceCheckUtils]: 1: Hoare triple {27#true} assume true; {27#true} is VALID [2020-07-17 22:50:43,349 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {27#true} {27#true} #42#return; {27#true} is VALID [2020-07-17 22:50:43,351 INFO L263 TraceCheckUtils]: 0: Hoare triple {27#true} call ULTIMATE.init(); {32#(= ~x~0 |old(~x~0)|)} is VALID [2020-07-17 22:50:43,352 INFO L280 TraceCheckUtils]: 1: Hoare triple {32#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {27#true} is VALID [2020-07-17 22:50:43,352 INFO L280 TraceCheckUtils]: 2: Hoare triple {27#true} assume true; {27#true} is VALID [2020-07-17 22:50:43,353 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {27#true} {27#true} #42#return; {27#true} is VALID [2020-07-17 22:50:43,353 INFO L263 TraceCheckUtils]: 4: Hoare triple {27#true} call #t~ret3 := main(); {27#true} is VALID [2020-07-17 22:50:43,354 INFO L280 TraceCheckUtils]: 5: Hoare triple {27#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~x~0 := #t~nondet1;havoc #t~nondet1; {27#true} is VALID [2020-07-17 22:50:43,355 INFO L280 TraceCheckUtils]: 6: Hoare triple {27#true} assume !true; {28#false} is VALID [2020-07-17 22:50:43,355 INFO L263 TraceCheckUtils]: 7: Hoare triple {28#false} call __VERIFIER_assert((if ~x~0 <= 0 then 1 else 0)); {28#false} is VALID [2020-07-17 22:50:43,355 INFO L280 TraceCheckUtils]: 8: Hoare triple {28#false} ~cond := #in~cond; {28#false} is VALID [2020-07-17 22:50:43,356 INFO L280 TraceCheckUtils]: 9: Hoare triple {28#false} assume 0 == ~cond; {28#false} is VALID [2020-07-17 22:50:43,356 INFO L280 TraceCheckUtils]: 10: Hoare triple {28#false} assume !false; {28#false} is VALID [2020-07-17 22:50:43,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:43,358 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759976740] [2020-07-17 22:50:43,359 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:43,359 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 22:50:43,360 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992220140] [2020-07-17 22:50:43,367 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-17 22:50:43,370 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:43,373 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-17 22:50:43,410 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:43,411 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 22:50:43,411 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:43,420 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 22:50:43,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:43,423 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 3 states. [2020-07-17 22:50:43,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:43,571 INFO L93 Difference]: Finished difference Result 35 states and 40 transitions. [2020-07-17 22:50:43,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 22:50:43,572 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-17 22:50:43,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:43,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:43,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2020-07-17 22:50:43,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-17 22:50:43,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 40 transitions. [2020-07-17 22:50:43,588 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 40 transitions. [2020-07-17 22:50:43,667 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:43,681 INFO L225 Difference]: With dead ends: 35 [2020-07-17 22:50:43,681 INFO L226 Difference]: Without dead ends: 18 [2020-07-17 22:50:43,686 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 22:50:43,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-17 22:50:43,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-17 22:50:43,740 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:43,741 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-17 22:50:43,741 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-17 22:50:43,742 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-17 22:50:43,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:43,747 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2020-07-17 22:50:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-07-17 22:50:43,748 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:43,748 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:43,749 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-17 22:50:43,749 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-17 22:50:43,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:43,754 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2020-07-17 22:50:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-07-17 22:50:43,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:43,755 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:43,755 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:43,755 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:43,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-17 22:50:43,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2020-07-17 22:50:43,760 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 11 [2020-07-17 22:50:43,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:43,761 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2020-07-17 22:50:43,761 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 22:50:43,761 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2020-07-17 22:50:43,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-17 22:50:43,762 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 22:50:43,762 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 22:50:43,763 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 22:50:43,763 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 22:50:43,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 22:50:43,764 INFO L82 PathProgramCache]: Analyzing trace with hash 1862399520, now seen corresponding path program 1 times [2020-07-17 22:50:43,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-17 22:50:43,765 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964836228] [2020-07-17 22:50:43,765 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 22:50:43,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:43,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 22:50:43,882 INFO L280 TraceCheckUtils]: 0: Hoare triple {154#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {146#true} is VALID [2020-07-17 22:50:43,883 INFO L280 TraceCheckUtils]: 1: Hoare triple {146#true} assume true; {146#true} is VALID [2020-07-17 22:50:43,883 INFO L275 TraceCheckUtils]: 2: Hoare quadruple {146#true} {146#true} #42#return; {146#true} is VALID [2020-07-17 22:50:43,885 INFO L263 TraceCheckUtils]: 0: Hoare triple {146#true} call ULTIMATE.init(); {154#(= ~x~0 |old(~x~0)|)} is VALID [2020-07-17 22:50:43,885 INFO L280 TraceCheckUtils]: 1: Hoare triple {154#(= ~x~0 |old(~x~0)|)} ~x~0 := 0; {146#true} is VALID [2020-07-17 22:50:43,886 INFO L280 TraceCheckUtils]: 2: Hoare triple {146#true} assume true; {146#true} is VALID [2020-07-17 22:50:43,886 INFO L275 TraceCheckUtils]: 3: Hoare quadruple {146#true} {146#true} #42#return; {146#true} is VALID [2020-07-17 22:50:43,886 INFO L263 TraceCheckUtils]: 4: Hoare triple {146#true} call #t~ret3 := main(); {146#true} is VALID [2020-07-17 22:50:43,887 INFO L280 TraceCheckUtils]: 5: Hoare triple {146#true} assume -2147483648 <= #t~nondet1 && #t~nondet1 <= 2147483647;~x~0 := #t~nondet1;havoc #t~nondet1; {146#true} is VALID [2020-07-17 22:50:43,888 INFO L280 TraceCheckUtils]: 6: Hoare triple {146#true} assume !(~x~0 > 0); {151#(<= ~x~0 0)} is VALID [2020-07-17 22:50:43,889 INFO L263 TraceCheckUtils]: 7: Hoare triple {151#(<= ~x~0 0)} call __VERIFIER_assert((if ~x~0 <= 0 then 1 else 0)); {152#(not (= 0 |__VERIFIER_assert_#in~cond|))} is VALID [2020-07-17 22:50:43,890 INFO L280 TraceCheckUtils]: 8: Hoare triple {152#(not (= 0 |__VERIFIER_assert_#in~cond|))} ~cond := #in~cond; {153#(not (= 0 __VERIFIER_assert_~cond))} is VALID [2020-07-17 22:50:43,891 INFO L280 TraceCheckUtils]: 9: Hoare triple {153#(not (= 0 __VERIFIER_assert_~cond))} assume 0 == ~cond; {147#false} is VALID [2020-07-17 22:50:43,892 INFO L280 TraceCheckUtils]: 10: Hoare triple {147#false} assume !false; {147#false} is VALID [2020-07-17 22:50:43,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 22:50:43,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964836228] [2020-07-17 22:50:43,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 22:50:43,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-17 22:50:43,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984824173] [2020-07-17 22:50:43,896 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-17 22:50:43,897 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-17 22:50:43,897 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-17 22:50:43,917 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:43,918 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-17 22:50:43,918 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-17 22:50:43,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-17 22:50:43,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-07-17 22:50:43,920 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 6 states. [2020-07-17 22:50:44,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,123 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2020-07-17 22:50:44,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-17 22:50:44,124 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-07-17 22:50:44,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 22:50:44,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-17 22:50:44,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2020-07-17 22:50:44,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-17 22:50:44,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 20 transitions. [2020-07-17 22:50:44,130 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 20 transitions. [2020-07-17 22:50:44,160 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-17 22:50:44,160 INFO L225 Difference]: With dead ends: 18 [2020-07-17 22:50:44,161 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 22:50:44,162 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-17 22:50:44,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 22:50:44,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 22:50:44,163 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-17 22:50:44,163 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,164 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,164 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,164 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:44,164 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:44,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,165 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:44,165 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,165 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-17 22:50:44,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 22:50:44,165 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-17 22:50:44,166 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:44,166 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,166 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-17 22:50:44,166 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-17 22:50:44,166 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-17 22:50:44,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 22:50:44,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 22:50:44,167 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2020-07-17 22:50:44,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 22:50:44,167 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 22:50:44,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-17 22:50:44,168 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 22:50:44,168 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 22:50:44,168 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 22:50:44,171 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 22:50:44,247 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,247 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2020-07-17 22:50:44,247 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,247 INFO L268 CegarLoopResult]: For program point fooEXIT(lines 15 17) no Hoare annotation was computed. [2020-07-17 22:50:44,247 INFO L264 CegarLoopResult]: At program point fooENTRY(lines 15 17) the Hoare annotation is: (= ~x~0 |old(~x~0)|) [2020-07-17 22:50:44,248 INFO L268 CegarLoopResult]: For program point fooFINAL(lines 15 17) no Hoare annotation was computed. [2020-07-17 22:50:44,248 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,248 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= ~x~0 0) [2020-07-17 22:50:44,248 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 22:50:44,248 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-17 22:50:44,248 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 19 27) the Hoare annotation is: (or (not (<= |old(~x~0)| 0)) (= ~x~0 |old(~x~0)|)) [2020-07-17 22:50:44,249 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 19 27) no Hoare annotation was computed. [2020-07-17 22:50:44,249 INFO L271 CegarLoopResult]: At program point L24(line 24) the Hoare annotation is: true [2020-07-17 22:50:44,249 INFO L268 CegarLoopResult]: For program point L23(lines 23 24) no Hoare annotation was computed. [2020-07-17 22:50:44,249 INFO L271 CegarLoopResult]: At program point L24-1(lines 21 25) the Hoare annotation is: true [2020-07-17 22:50:44,249 INFO L271 CegarLoopResult]: At program point L23-1(line 23) the Hoare annotation is: true [2020-07-17 22:50:44,250 INFO L264 CegarLoopResult]: At program point L21-2(lines 21 25) the Hoare annotation is: (or (not (<= |old(~x~0)| 0)) (<= ~x~0 0)) [2020-07-17 22:50:44,250 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 19 27) no Hoare annotation was computed. [2020-07-17 22:50:44,250 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2020-07-17 22:50:44,250 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2020-07-17 22:50:44,250 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-07-17 22:50:44,250 INFO L268 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2020-07-17 22:50:44,251 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2020-07-17 22:50:44,251 INFO L268 CegarLoopResult]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2020-07-17 22:50:44,256 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:44,256 WARN L170 areAnnotationChecker]: fooFINAL has no Hoare annotation [2020-07-17 22:50:44,258 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:44,258 WARN L170 areAnnotationChecker]: ULTIMATE.initFINAL has no Hoare annotation [2020-07-17 22:50:44,258 WARN L170 areAnnotationChecker]: fooFINAL has no Hoare annotation [2020-07-17 22:50:44,258 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:44,260 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:44,260 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:44,260 WARN L170 areAnnotationChecker]: L4 has no Hoare annotation [2020-07-17 22:50:44,260 WARN L170 areAnnotationChecker]: ULTIMATE.initEXIT has no Hoare annotation [2020-07-17 22:50:44,260 WARN L170 areAnnotationChecker]: fooEXIT has no Hoare annotation [2020-07-17 22:50:44,260 WARN L170 areAnnotationChecker]: fooEXIT has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: L5 has no Hoare annotation [2020-07-17 22:50:44,261 WARN L170 areAnnotationChecker]: L4-2 has no Hoare annotation [2020-07-17 22:50:44,262 WARN L170 areAnnotationChecker]: mainFINAL has no Hoare annotation [2020-07-17 22:50:44,263 WARN L170 areAnnotationChecker]: __VERIFIER_assertEXIT has no Hoare annotation [2020-07-17 22:50:44,263 WARN L170 areAnnotationChecker]: mainEXIT has no Hoare annotation [2020-07-17 22:50:44,263 INFO L163 areAnnotationChecker]: CFG has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-17 22:50:44,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 10:50:44 BoogieIcfgContainer [2020-07-17 22:50:44,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 22:50:44,277 INFO L168 Benchmark]: Toolchain (without parser) took 1987.00 ms. Allocated memory was 137.9 MB in the beginning and 233.8 MB in the end (delta: 95.9 MB). Free memory was 102.7 MB in the beginning and 180.0 MB in the end (delta: -77.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,278 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.87 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,280 INFO L168 Benchmark]: Boogie Preprocessor took 123.32 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.8 MB in the beginning and 181.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,281 INFO L168 Benchmark]: RCFGBuilder took 348.26 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 163.4 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,282 INFO L168 Benchmark]: TraceAbstraction took 1241.65 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 162.8 MB in the beginning and 180.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-07-17 22:50:44,285 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 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 265.87 ms. Allocated memory is still 137.9 MB. Free memory was 102.3 MB in the beginning and 92.8 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 123.32 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 92.8 MB in the beginning and 181.1 MB in the end (delta: -88.3 MB). Peak memory consumption was 14.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 348.26 ms. Allocated memory is still 201.9 MB. Free memory was 180.5 MB in the beginning and 163.4 MB in the end (delta: 17.0 MB). Peak memory consumption was 17.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1241.65 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 162.8 MB in the beginning and 180.0 MB in the end (delta: -17.2 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 24 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 41 SDtfs, 12 SDslu, 55 SDs, 0 SdLazy, 20 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 10 LocationsWithAnnotation, 12 PreInvPairs, 13 NumberOfFragments, 30 HoareAnnotationTreeSize, 12 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 22 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 22 NumberOfCodeBlocks, 22 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 320 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...