/usr/bin/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 --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLEST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/loops-crafted-1/loopv1.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 18:31:11,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 18:31:11,050 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 18:31:11,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 18:31:11,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 18:31:11,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 18:31:11,116 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 18:31:11,120 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 18:31:11,123 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 18:31:11,127 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 18:31:11,129 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 18:31:11,130 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 18:31:11,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 18:31:11,133 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 18:31:11,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 18:31:11,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 18:31:11,141 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 18:31:11,143 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 18:31:11,144 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 18:31:11,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 18:31:11,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 18:31:11,159 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 18:31:11,160 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 18:31:11,161 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 18:31:11,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 18:31:11,165 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 18:31:11,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 18:31:11,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 18:31:11,168 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 18:31:11,169 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 18:31:11,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 18:31:11,170 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 18:31:11,174 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 18:31:11,175 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 18:31:11,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 18:31:11,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 18:31:11,178 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 18:31:11,178 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 18:31:11,178 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 18:31:11,179 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 18:31:11,181 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 18:31:11,182 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-24 18:31:11,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 18:31:11,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 18:31:11,236 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 18:31:11,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 18:31:11,237 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 18:31:11,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 18:31:11,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 18:31:11,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 18:31:11,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 18:31:11,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 18:31:11,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 18:31:11,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 18:31:11,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 18:31:11,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 18:31:11,241 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 18:31:11,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 18:31:11,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 18:31:11,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 18:31:11,242 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 18:31:11,242 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 18:31:11,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 18:31:11,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 18:31:11,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 18:31:11,243 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 18:31:11,243 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 18:31:11,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 18:31:11,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 18:31:11,244 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 18:31:11,244 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 18:31:11,244 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLEST;log-additional-information=true; [2020-09-24 18:31:11,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 18:31:11,715 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 18:31:11,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 18:31:11,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 18:31:11,722 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 18:31:11,723 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops-crafted-1/loopv1.c [2020-09-24 18:31:11,801 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cdd37528/d320bde033034ae485145cf37d45e1c9/FLAGdeb1876f1 [2020-09-24 18:31:12,310 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 18:31:12,311 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/loops-crafted-1/loopv1.c [2020-09-24 18:31:12,320 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cdd37528/d320bde033034ae485145cf37d45e1c9/FLAGdeb1876f1 [2020-09-24 18:31:12,651 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/4cdd37528/d320bde033034ae485145cf37d45e1c9 [2020-09-24 18:31:12,666 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 18:31:12,672 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 18:31:12,673 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 18:31:12,674 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 18:31:12,678 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 18:31:12,679 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:31:12" (1/1) ... [2020-09-24 18:31:12,684 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26f88baa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:12, skipping insertion in model container [2020-09-24 18:31:12,684 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 06:31:12" (1/1) ... [2020-09-24 18:31:12,694 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 18:31:12,718 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 18:31:12,949 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:31:12,957 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 18:31:12,979 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 18:31:12,999 INFO L208 MainTranslator]: Completed translation [2020-09-24 18:31:13,000 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13 WrapperNode [2020-09-24 18:31:13,000 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 18:31:13,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 18:31:13,001 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 18:31:13,001 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 18:31:13,020 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,020 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,027 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... [2020-09-24 18:31:13,121 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 18:31:13,122 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 18:31:13,122 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 18:31:13,122 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 18:31:13,125 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-24 18:31:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 18:31:13,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 18:31:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2020-09-24 18:31:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2020-09-24 18:31:13,203 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 18:31:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 18:31:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 18:31:13,203 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-09-24 18:31:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2020-09-24 18:31:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2020-09-24 18:31:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 18:31:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 18:31:13,204 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 18:31:13,451 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 18:31:13,452 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-24 18:31:13,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:31:13 BoogieIcfgContainer [2020-09-24 18:31:13,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 18:31:13,459 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 18:31:13,459 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 18:31:13,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 18:31:13,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 06:31:12" (1/3) ... [2020-09-24 18:31:13,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e230e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:31:13, skipping insertion in model container [2020-09-24 18:31:13,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 06:31:13" (2/3) ... [2020-09-24 18:31:13,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@c2e230e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 06:31:13, skipping insertion in model container [2020-09-24 18:31:13,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 06:31:13" (3/3) ... [2020-09-24 18:31:13,469 INFO L109 eAbstractionObserver]: Analyzing ICFG loopv1.c [2020-09-24 18:31:13,481 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 18:31:13,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 18:31:13,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 18:31:13,551 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 18:31:13,551 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 18:31:13,551 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 18:31:13,551 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 18:31:13,552 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 18:31:13,552 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 18:31:13,552 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 18:31:13,552 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 18:31:13,575 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-09-24 18:31:13,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 18:31:13,583 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:31:13,584 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:31:13,584 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:31:13,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:31:13,591 INFO L82 PathProgramCache]: Analyzing trace with hash 177195790, now seen corresponding path program 1 times [2020-09-24 18:31:13,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:31:13,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1381536862] [2020-09-24 18:31:13,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:31:13,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:31:13,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:31:13,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:31:13,997 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:31:13,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 18:31:13,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 18:31:13,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 278 [2020-09-24 18:31:14,004 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:31:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:31:14,004 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-24 18:31:14,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:31:14,005 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-24 18:31:14,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:31:14,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:31:14,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:31:14,081 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:31:14,081 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:31:14,081 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:31:14,082 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 18:31:14,082 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:31:14,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:31:14,082 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:31:14,083 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:31:14,083 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:31:14,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:31:14,093 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1381536862] [2020-09-24 18:31:14,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:31:14,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 18:31:14,097 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876317059] [2020-09-24 18:31:14,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 18:31:14,106 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:31:14,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 18:31:14,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 18:31:14,129 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 3 states. [2020-09-24 18:31:14,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:31:14,224 INFO L93 Difference]: Finished difference Result 46 states and 51 transitions. [2020-09-24 18:31:14,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 18:31:14,234 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-24 18:31:14,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:31:14,248 INFO L225 Difference]: With dead ends: 46 [2020-09-24 18:31:14,249 INFO L226 Difference]: Without dead ends: 26 [2020-09-24 18:31:14,253 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 [2020-09-24 18:31:14,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2020-09-24 18:31:14,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2020-09-24 18:31:14,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-09-24 18:31:14,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2020-09-24 18:31:14,310 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 19 [2020-09-24 18:31:14,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:31:14,311 INFO L479 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2020-09-24 18:31:14,311 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 18:31:14,311 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2020-09-24 18:31:14,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-24 18:31:14,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 18:31:14,312 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 18:31:14,313 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 18:31:14,313 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 18:31:14,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 18:31:14,314 INFO L82 PathProgramCache]: Analyzing trace with hash 163342975, now seen corresponding path program 1 times [2020-09-24 18:31:14,314 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 18:31:14,314 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1525203274] [2020-09-24 18:31:14,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 18:31:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:31:14,340 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:31:14,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:31:14,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-09-24 18:31:14,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:31:14,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 156 [2020-09-24 18:31:14,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:31:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 18:31:14,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-09-24 18:31:14,488 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-24 18:31:14,488 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 18:31:14,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 18:31:14,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 18:31:14,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 18:31:14,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-24 18:31:14,610 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-24 18:31:14,610 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 18:31:14,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 18:31:14,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLEST [2020-09-24 18:31:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 18:31:14,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 18:31:14,614 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 18:31:14,614 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 18:31:14,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 18:31:14,623 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1525203274] [2020-09-24 18:31:14,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 18:31:14,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-24 18:31:14,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [16078230] [2020-09-24 18:31:14,629 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-24 18:31:14,630 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 18:31:14,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-24 18:31:14,630 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-24 18:31:14,631 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 6 states. [2020-09-24 18:31:14,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 18:31:14,791 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-09-24 18:31:14,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-24 18:31:14,792 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2020-09-24 18:31:14,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 18:31:14,792 INFO L225 Difference]: With dead ends: 26 [2020-09-24 18:31:14,793 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 18:31:14,794 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2020-09-24 18:31:14,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 18:31:14,795 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 18:31:14,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 18:31:14,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 18:31:14,796 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-24 18:31:14,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 18:31:14,796 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 18:31:14,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-24 18:31:14,796 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 18:31:14,796 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 18:31:14,797 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 18:31:14,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 18:31:14,885 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:31:14,886 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (= ~SIZE~0 |old(~SIZE~0)|) [2020-09-24 18:31:14,886 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:31:14,886 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 18:31:14,887 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-09-24 18:31:14,887 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 18:31:14,887 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 18:31:14,887 INFO L268 CegarLoopResult]: For program point assume_abort_if_notENTRY(lines 7 9) no Hoare annotation was computed. [2020-09-24 18:31:14,887 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 18:31:14,887 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-24 18:31:14,888 INFO L268 CegarLoopResult]: For program point L8-3(lines 7 9) no Hoare annotation was computed. [2020-09-24 18:31:14,889 INFO L268 CegarLoopResult]: For program point assume_abort_if_notEXIT(lines 7 9) no Hoare annotation was computed. [2020-09-24 18:31:14,889 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 18:31:14,889 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 18 32) no Hoare annotation was computed. [2020-09-24 18:31:14,889 INFO L268 CegarLoopResult]: For program point L25-1(lines 25 28) no Hoare annotation was computed. [2020-09-24 18:31:14,889 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-24 18:31:14,889 INFO L268 CegarLoopResult]: For program point L21(line 21) no Hoare annotation was computed. [2020-09-24 18:31:14,890 INFO L268 CegarLoopResult]: For program point L25-4(line 25) no Hoare annotation was computed. [2020-09-24 18:31:14,890 INFO L264 CegarLoopResult]: At program point L23-2(lines 23 29) the Hoare annotation is: (and (<= main_~i~0 (* 3 (div main_~i~0 3))) (<= 0 main_~i~0)) [2020-09-24 18:31:14,890 INFO L268 CegarLoopResult]: For program point L21-1(line 21) no Hoare annotation was computed. [2020-09-24 18:31:14,891 INFO L264 CegarLoopResult]: At program point L25-5(lines 23 29) the Hoare annotation is: (and (<= main_~i~0 (* 3 (div main_~i~0 3))) (<= 0 main_~i~0)) [2020-09-24 18:31:14,891 INFO L268 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-09-24 18:31:14,891 INFO L268 CegarLoopResult]: For program point L19-1(line 19) no Hoare annotation was computed. [2020-09-24 18:31:14,892 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 18 32) no Hoare annotation was computed. [2020-09-24 18:31:14,892 INFO L268 CegarLoopResult]: For program point L30(line 30) no Hoare annotation was computed. [2020-09-24 18:31:14,892 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 18 32) the Hoare annotation is: true [2020-09-24 18:31:14,892 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-24 18:31:14,892 INFO L268 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-09-24 18:31:14,892 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 18:31:14,893 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 18:31:14,893 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 18:31:14,893 INFO L268 CegarLoopResult]: For program point L20-1(line 20) no Hoare annotation was computed. [2020-09-24 18:31:14,893 INFO L268 CegarLoopResult]: For program point L20-2(line 20) no Hoare annotation was computed. [2020-09-24 18:31:14,893 INFO L271 CegarLoopResult]: At program point __VERIFIER_assertENTRY(lines 10 15) the Hoare annotation is: true [2020-09-24 18:31:14,894 INFO L268 CegarLoopResult]: For program point L12(line 12) no Hoare annotation was computed. [2020-09-24 18:31:14,894 INFO L268 CegarLoopResult]: For program point L11(lines 11 13) no Hoare annotation was computed. [2020-09-24 18:31:14,894 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertEXIT(lines 10 15) no Hoare annotation was computed. [2020-09-24 18:31:14,894 INFO L268 CegarLoopResult]: For program point L11-2(lines 10 15) no Hoare annotation was computed. [2020-09-24 18:31:14,895 INFO L268 CegarLoopResult]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2020-09-24 18:31:14,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 06:31:14 BoogieIcfgContainer [2020-09-24 18:31:14,922 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 18:31:14,929 INFO L168 Benchmark]: Toolchain (without parser) took 2256.79 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 102.3 MB in the beginning and 97.3 MB in the end (delta: 5.1 MB). Peak memory consumption was 68.0 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:14,930 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-24 18:31:14,931 INFO L168 Benchmark]: CACSL2BoogieTranslator took 327.46 ms. Allocated memory is still 140.0 MB. Free memory was 101.7 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:14,933 INFO L168 Benchmark]: Boogie Preprocessor took 120.60 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 182.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:14,935 INFO L168 Benchmark]: RCFGBuilder took 335.81 ms. Allocated memory is still 202.9 MB. Free memory was 182.9 MB in the beginning and 168.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:14,936 INFO L168 Benchmark]: TraceAbstraction took 1463.00 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 97.3 MB in the end (delta: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. [2020-09-24 18:31:14,948 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.0 MB. Free memory was 120.2 MB in the beginning and 120.0 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 327.46 ms. Allocated memory is still 140.0 MB. Free memory was 101.7 MB in the beginning and 92.2 MB in the end (delta: 9.5 MB). Peak memory consumption was 9.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.60 ms. Allocated memory was 140.0 MB in the beginning and 202.9 MB in the end (delta: 62.9 MB). Free memory was 92.2 MB in the beginning and 182.9 MB in the end (delta: -90.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 335.81 ms. Allocated memory is still 202.9 MB. Free memory was 182.9 MB in the beginning and 168.1 MB in the end (delta: 14.8 MB). Peak memory consumption was 14.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1463.00 ms. Allocated memory is still 202.9 MB. Free memory was 167.4 MB in the beginning and 97.3 MB in the end (delta: 70.2 MB). Peak memory consumption was 70.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 12]: 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: 23]: Loop Invariant Derived loop invariant: i <= 3 * (i / 3) && 0 <= i - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 52 SDtfs, 51 SDslu, 22 SDs, 0 SdLazy, 56 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=34occurred 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, 7 LocationsWithAnnotation, 8 PreInvPairs, 9 NumberOfFragments, 29 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 1332 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...