java -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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-c6af20d [2019-09-03 20:57:44,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-03 20:57:44,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-03 20:57:44,347 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-03 20:57:44,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-03 20:57:44,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-03 20:57:44,368 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-03 20:57:44,373 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-03 20:57:44,374 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-03 20:57:44,376 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-03 20:57:44,378 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-03 20:57:44,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-03 20:57:44,383 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-03 20:57:44,386 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-03 20:57:44,387 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-03 20:57:44,388 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-03 20:57:44,392 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-03 20:57:44,406 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-03 20:57:44,407 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-03 20:57:44,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-03 20:57:44,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-03 20:57:44,425 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-03 20:57:44,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-03 20:57:44,426 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-03 20:57:44,426 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-03 20:57:44,427 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-03 20:57:44,427 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-03 20:57:44,427 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-03 20:57:44,427 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-03 20:57:44,428 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-03 20:57:44,428 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-03 20:57:44,429 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-03 20:57:44,429 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-03 20:57:44,429 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-03 20:57:44,429 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-03 20:57:44,429 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-03 20:57:44,430 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-03 20:57:44,430 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-03 20:57:44,430 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-03 20:57:44,430 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-03 20:57:44,431 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-03 20:57:44,431 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-03 20:57:44,431 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-03 20:57:44,431 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-03 20:57:44,432 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-03 20:57:44,432 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-03 20:57:44,432 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-03 20:57:44,432 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-03 20:57:44,432 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-03 20:57:44,433 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-03 20:57:44,433 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-03 20:57:44,478 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-03 20:57:44,496 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-03 20:57:44,499 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-03 20:57:44,501 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-03 20:57:44,501 INFO L275 PluginConnector]: CDTParser initialized [2019-09-03 20:57:44,502 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-09-03 20:57:44,565 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d470c7bc/e781048231304f778921b234c49aa032/FLAG39a4ba4d0 [2019-09-03 20:57:45,024 INFO L306 CDTParser]: Found 1 translation units. [2019-09-03 20:57:45,025 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/gauss_sum.i.p+lhb-reducer.c [2019-09-03 20:57:45,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d470c7bc/e781048231304f778921b234c49aa032/FLAG39a4ba4d0 [2019-09-03 20:57:45,396 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d470c7bc/e781048231304f778921b234c49aa032 [2019-09-03 20:57:45,405 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-03 20:57:45,406 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-03 20:57:45,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-03 20:57:45,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-03 20:57:45,411 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-03 20:57:45,412 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54e05795 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45, skipping insertion in model container [2019-09-03 20:57:45,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,424 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-03 20:57:45,451 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-03 20:57:45,697 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:57:45,704 INFO L188 MainTranslator]: Completed pre-run [2019-09-03 20:57:45,740 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-03 20:57:45,753 INFO L192 MainTranslator]: Completed translation [2019-09-03 20:57:45,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45 WrapperNode [2019-09-03 20:57:45,754 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-03 20:57:45,755 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-03 20:57:45,755 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-03 20:57:45,755 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-03 20:57:45,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,864 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,879 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,880 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (1/1) ... [2019-09-03 20:57:45,882 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-03 20:57:45,882 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-03 20:57:45,883 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-03 20:57:45,883 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-03 20:57:45,884 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (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 [2019-09-03 20:57:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-03 20:57:45,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-03 20:57:45,944 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-03 20:57:45,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-03 20:57:46,144 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-03 20:57:46,144 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-03 20:57:46,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:57:46 BoogieIcfgContainer [2019-09-03 20:57:46,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-03 20:57:46,147 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-03 20:57:46,147 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-03 20:57:46,151 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-03 20:57:46,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.09 08:57:45" (1/3) ... [2019-09-03 20:57:46,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6957427c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:57:46, skipping insertion in model container [2019-09-03 20:57:46,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.09 08:57:45" (2/3) ... [2019-09-03 20:57:46,153 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6957427c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.09 08:57:46, skipping insertion in model container [2019-09-03 20:57:46,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.09 08:57:46" (3/3) ... [2019-09-03 20:57:46,155 INFO L109 eAbstractionObserver]: Analyzing ICFG gauss_sum.i.p+lhb-reducer.c [2019-09-03 20:57:46,166 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-03 20:57:46,181 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-03 20:57:46,212 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-03 20:57:46,266 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-03 20:57:46,266 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-03 20:57:46,267 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-03 20:57:46,267 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-03 20:57:46,267 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-03 20:57:46,267 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-03 20:57:46,267 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-03 20:57:46,267 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-03 20:57:46,284 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2019-09-03 20:57:46,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2019-09-03 20:57:46,294 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:57:46,295 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:57:46,297 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:57:46,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:57:46,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1720236422, now seen corresponding path program 1 times [2019-09-03 20:57:46,314 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:57:46,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:57:46,384 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:46,384 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:57:46,384 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:57:46,439 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-03 20:57:46,439 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-03 20:57:46,439 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-03 20:57:46,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:46,459 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-03 20:57:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:57:46,483 INFO L195 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2019-09-03 20:57:46,486 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-03 20:57:46,486 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 20:57:46,491 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-03 20:57:46,508 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:46,509 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-03 20:57:46,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:57:46,540 INFO L256 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 31 conjunts are in the unsatisfiable core [2019-09-03 20:57:46,547 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 20:57:46,706 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-03 20:57:46,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:57:46,742 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-03 20:57:47,069 WARN L860 $PredicateComparison]: unable to prove that (forall ((main_~main__n~0 Int)) (let ((.cse0 (+ c_main_~main__i~0 1))) (or (= (+ (* 2 c_main_~main__sum~0) (* 4 c_main_~main__i~0) 2) (* (+ main_~main__n~0 1) main_~main__n~0)) (< main_~main__n~0 .cse0) (< .cse0 main_~main__n~0)))) is different from true [2019-09-03 20:57:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:57:49,297 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-09-03 20:57:49,297 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9, 7] imperfect sequences [] total 14 [2019-09-03 20:57:49,297 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-03 20:57:49,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-03 20:57:49,314 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-03 20:57:49,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=4, NotChecked=22, Total=182 [2019-09-03 20:57:49,317 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 9 states. [2019-09-03 20:57:49,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:57:49,523 INFO L93 Difference]: Finished difference Result 35 states and 43 transitions. [2019-09-03 20:57:49,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-03 20:57:49,526 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 16 [2019-09-03 20:57:49,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:57:49,541 INFO L225 Difference]: With dead ends: 35 [2019-09-03 20:57:49,542 INFO L226 Difference]: Without dead ends: 18 [2019-09-03 20:57:49,546 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=4, NotChecked=24, Total=210 [2019-09-03 20:57:49,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-03 20:57:49,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-03 20:57:49,582 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-03 20:57:49,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-09-03 20:57:49,584 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 16 [2019-09-03 20:57:49,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:57:49,585 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-09-03 20:57:49,585 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-03 20:57:49,585 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-09-03 20:57:49,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-03 20:57:49,586 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:57:49,586 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:57:49,587 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:57:49,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:57:49,587 INFO L82 PathProgramCache]: Analyzing trace with hash 1787659072, now seen corresponding path program 1 times [2019-09-03 20:57:49,587 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:57:49,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:57:49,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:49,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:57:49,589 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:57:49,609 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-03 20:57:49,610 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-03 20:57:49,610 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-03 20:57:49,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:49,624 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-03 20:57:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:57:49,637 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 18 with the following transitions: [2019-09-03 20:57:49,639 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [16], [19], [22], [25], [28], [32], [34], [37], [38], [47], [48], [49] [2019-09-03 20:57:49,679 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-03 20:57:49,679 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-03 20:57:49,829 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-03 20:57:49,832 INFO L272 AbstractInterpreter]: Visited 17 different actions 37 times. Merged at 4 different actions 20 times. Widened at 1 different actions 3 times. Performed 99 root evaluator evaluations with a maximum evaluation depth of 6. Performed 99 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 10 variables. [2019-09-03 20:57:49,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:57:49,836 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-03 20:57:49,837 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 20:57:49,837 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-03 20:57:49,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:49,863 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-03 20:57:49,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:57:49,909 WARN L254 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 35 conjunts are in the unsatisfiable core [2019-09-03 20:57:49,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 20:57:50,006 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-03 20:57:50,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:57:50,023 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-03 20:57:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:57:53,078 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-03 20:57:53,078 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 6] total 14 [2019-09-03 20:57:53,078 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-03 20:57:53,079 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-03 20:57:53,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-03 20:57:53,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=139, Unknown=3, NotChecked=0, Total=182 [2019-09-03 20:57:53,080 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 14 states. [2019-09-03 20:57:53,444 WARN L860 $PredicateComparison]: unable to prove that (and (forall ((main_~main__n~0 Int)) (let ((.cse0 (+ c_main_~main__i~0 1))) (or (= (+ (* 2 c_main_~main__sum~0) (* 4 c_main_~main__i~0) 2) (* (+ main_~main__n~0 1) main_~main__n~0)) (< main_~main__n~0 .cse0) (< .cse0 main_~main__n~0)))) (or (<= c_main_~main__i~0 c_main_~main__n~0) (= (* 2 c_main_~main__sum~0) (* (+ c_main_~main__n~0 1) c_main_~main__n~0)))) is different from true [2019-09-03 20:57:53,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:57:53,653 INFO L93 Difference]: Finished difference Result 24 states and 24 transitions. [2019-09-03 20:57:53,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-03 20:57:53,654 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 17 [2019-09-03 20:57:53,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:57:53,655 INFO L225 Difference]: With dead ends: 24 [2019-09-03 20:57:53,655 INFO L226 Difference]: Without dead ends: 21 [2019-09-03 20:57:53,657 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 18 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=93, Invalid=367, Unknown=6, NotChecked=40, Total=506 [2019-09-03 20:57:53,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-03 20:57:53,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-03 20:57:53,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-03 20:57:53,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 21 transitions. [2019-09-03 20:57:53,660 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 21 transitions. Word has length 17 [2019-09-03 20:57:53,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:57:53,661 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 21 transitions. [2019-09-03 20:57:53,661 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-03 20:57:53,661 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 21 transitions. [2019-09-03 20:57:53,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-09-03 20:57:53,662 INFO L391 BasicCegarLoop]: Found error trace [2019-09-03 20:57:53,662 INFO L399 BasicCegarLoop]: trace histogram [4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-03 20:57:53,662 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-03 20:57:53,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-03 20:57:53,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1505077242, now seen corresponding path program 2 times [2019-09-03 20:57:53,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-03 20:57:53,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:57:53,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-03 20:57:53,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-03 20:57:53,665 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-03 20:57:53,678 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-03 20:57:53,678 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-03 20:57:53,678 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2019-09-03 20:57:53,712 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-03 20:57:53,712 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-03 20:57:53,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-03 20:57:53,733 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-03 20:57:53,733 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-03 20:57:53,733 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-03 20:57:53,734 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-03 20:57:53,745 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-03 20:57:53,745 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-03 20:57:53,773 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2019-09-03 20:57:53,774 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-03 20:57:53,775 WARN L254 TraceCheckSpWp]: Trace formula consists of 85 conjuncts, 47 conjunts are in the unsatisfiable core [2019-09-03 20:57:53,777 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-03 20:57:53,915 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-03 20:57:53,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-03 20:57:53,932 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-03 20:58:09,423 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-03 20:58:09,426 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-03 20:58:09,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5] total 16 [2019-09-03 20:58:09,427 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-03 20:58:09,427 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-03 20:58:09,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-03 20:58:09,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=199, Unknown=1, NotChecked=0, Total=240 [2019-09-03 20:58:09,428 INFO L87 Difference]: Start difference. First operand 21 states and 21 transitions. Second operand 16 states. [2019-09-03 20:58:13,481 WARN L188 SmtUtils]: Spent 2.03 s on a formula simplification that was a NOOP. DAG size: 19 [2019-09-03 20:58:17,547 WARN L188 SmtUtils]: Spent 3.92 s on a formula simplification that was a NOOP. DAG size: 21 [2019-09-03 20:58:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-03 20:58:17,549 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2019-09-03 20:58:17,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-03 20:58:17,549 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 20 [2019-09-03 20:58:17,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-03 20:58:17,549 INFO L225 Difference]: With dead ends: 21 [2019-09-03 20:58:17,550 INFO L226 Difference]: Without dead ends: 0 [2019-09-03 20:58:17,550 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 17 SyntacticMatches, 8 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 23.4s TimeCoverageRelationStatistics Valid=115, Invalid=640, Unknown=1, NotChecked=0, Total=756 [2019-09-03 20:58:17,550 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-03 20:58:17,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-03 20:58:17,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-03 20:58:17,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-03 20:58:17,551 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 20 [2019-09-03 20:58:17,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-03 20:58:17,551 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-03 20:58:17,551 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-03 20:58:17,551 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-03 20:58:17,551 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-03 20:58:17,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.09 08:58:17 BoogieIcfgContainer [2019-09-03 20:58:17,556 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-03 20:58:17,558 INFO L168 Benchmark]: Toolchain (without parser) took 32151.47 ms. Allocated memory was 132.6 MB in the beginning and 261.6 MB in the end (delta: 129.0 MB). Free memory was 88.2 MB in the beginning and 165.5 MB in the end (delta: -77.3 MB). Peak memory consumption was 51.7 MB. Max. memory is 7.1 GB. [2019-09-03 20:58:17,559 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-03 20:58:17,559 INFO L168 Benchmark]: CACSL2BoogieTranslator took 347.19 ms. Allocated memory is still 132.6 MB. Free memory was 88.0 MB in the beginning and 78.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. [2019-09-03 20:58:17,560 INFO L168 Benchmark]: Boogie Preprocessor took 127.24 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 78.1 MB in the beginning and 175.7 MB in the end (delta: -97.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. [2019-09-03 20:58:17,561 INFO L168 Benchmark]: RCFGBuilder took 263.71 ms. Allocated memory is still 199.8 MB. Free memory was 175.7 MB in the beginning and 162.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. [2019-09-03 20:58:17,562 INFO L168 Benchmark]: TraceAbstraction took 31409.07 ms. Allocated memory was 199.8 MB in the beginning and 261.6 MB in the end (delta: 61.9 MB). Free memory was 162.1 MB in the beginning and 165.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. [2019-09-03 20:58:17,567 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 132.6 MB. Free memory was 106.8 MB in the beginning and 106.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 347.19 ms. Allocated memory is still 132.6 MB. Free memory was 88.0 MB in the beginning and 78.1 MB in the end (delta: 9.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 127.24 ms. Allocated memory was 132.6 MB in the beginning and 199.8 MB in the end (delta: 67.1 MB). Free memory was 78.1 MB in the beginning and 175.7 MB in the end (delta: -97.6 MB). Peak memory consumption was 15.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 263.71 ms. Allocated memory is still 199.8 MB. Free memory was 175.7 MB in the beginning and 162.7 MB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 31409.07 ms. Allocated memory was 199.8 MB in the beginning and 261.6 MB in the end (delta: 61.9 MB). Free memory was 162.1 MB in the beginning and 165.5 MB in the end (delta: -3.4 MB). Peak memory consumption was 58.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 64]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 1 error locations. SAFE Result, 31.3s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 8.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 45 SDtfs, 23 SDslu, 301 SDs, 0 SdLazy, 353 SolverSat, 22 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 53 SyntacticMatches, 12 SemanticMatches, 60 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 29.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 21.5s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 100 ConstructedInterpolants, 20 QuantifiedInterpolants, 12577 SizeOfPredicates, 18 NumberOfNonLiveVariables, 220 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 6/22 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...