/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/ldv-regression/test09.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 17:07:44,633 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 17:07:44,637 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 17:07:44,663 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 17:07:44,663 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 17:07:44,665 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 17:07:44,666 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 17:07:44,669 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 17:07:44,670 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 17:07:44,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 17:07:44,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 17:07:44,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 17:07:44,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 17:07:44,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 17:07:44,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 17:07:44,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 17:07:44,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 17:07:44,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 17:07:44,688 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 17:07:44,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 17:07:44,695 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 17:07:44,700 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 17:07:44,701 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 17:07:44,702 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 17:07:44,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 17:07:44,709 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 17:07:44,709 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 17:07:44,712 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 17:07:44,712 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 17:07:44,713 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2020-09-24 17:07:44,721 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 17:07:44,722 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 17:07:44,723 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 17:07:44,724 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 17:07:44,771 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 17:07:44,771 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 17:07:44,774 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 17:07:44,774 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 17:07:44,774 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 17:07:44,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 17:07:44,775 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 17:07:44,775 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 17:07:44,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 17:07:44,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 17:07:44,777 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 17:07:44,777 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 17:07:44,777 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 17:07:44,777 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 17:07:44,778 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 17:07:44,778 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 17:07:44,778 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 17:07:44,778 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 17:07:44,778 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 17:07:44,779 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 17:07:44,779 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 17:07:44,779 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 17:07:44,779 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 17:07:44,779 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 17:07:44,780 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 17:07:44,780 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 17:07:44,780 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 17:07:44,781 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 17:07:44,781 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 17:07:44,781 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;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;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;log-additional-information=true; [2020-09-24 17:07:45,227 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 17:07:45,245 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 17:07:45,249 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 17:07:45,251 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 17:07:45,251 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 17:07:45,252 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-regression/test09.c [2020-09-24 17:07:45,346 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b65934e4e/0c022bfe39ff40889860904a4e1f86e3/FLAG47f8d7ccb [2020-09-24 17:07:45,906 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 17:07:45,907 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/ldv-regression/test09.c [2020-09-24 17:07:45,915 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b65934e4e/0c022bfe39ff40889860904a4e1f86e3/FLAG47f8d7ccb [2020-09-24 17:07:46,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/b65934e4e/0c022bfe39ff40889860904a4e1f86e3 [2020-09-24 17:07:46,256 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 17:07:46,263 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 17:07:46,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 17:07:46,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 17:07:46,269 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 17:07:46,270 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,274 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a5289c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46, skipping insertion in model container [2020-09-24 17:07:46,275 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 17:07:46,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 17:07:46,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:07:46,545 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 17:07:46,562 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 17:07:46,580 INFO L208 MainTranslator]: Completed translation [2020-09-24 17:07:46,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46 WrapperNode [2020-09-24 17:07:46,581 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 17:07:46,582 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 17:07:46,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 17:07:46,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 17:07:46,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,675 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,685 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,686 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,693 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,696 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,697 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (1/1) ... [2020-09-24 17:07:46,700 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 17:07:46,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 17:07:46,701 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 17:07:46,701 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 17:07:46,702 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (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 17:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 17:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 17:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2020-09-24 17:07:46,784 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 17:07:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 17:07:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure f [2020-09-24 17:07:46,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 17:07:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 17:07:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 17:07:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 17:07:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 17:07:46,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 17:07:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 17:07:46,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 17:07:47,115 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 17:07:47,115 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-09-24 17:07:47,121 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:07:47 BoogieIcfgContainer [2020-09-24 17:07:47,121 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 17:07:47,123 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 17:07:47,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 17:07:47,129 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 17:07:47,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 05:07:46" (1/3) ... [2020-09-24 17:07:47,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fb592f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:07:47, skipping insertion in model container [2020-09-24 17:07:47,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 05:07:46" (2/3) ... [2020-09-24 17:07:47,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fb592f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 05:07:47, skipping insertion in model container [2020-09-24 17:07:47,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 05:07:47" (3/3) ... [2020-09-24 17:07:47,134 INFO L109 eAbstractionObserver]: Analyzing ICFG test09.c [2020-09-24 17:07:47,147 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 17:07:47,157 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 17:07:47,192 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 17:07:47,222 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 17:07:47,222 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 17:07:47,222 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 17:07:47,222 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 17:07:47,222 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 17:07:47,222 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 17:07:47,223 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 17:07:47,223 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 17:07:47,246 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-09-24 17:07:47,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2020-09-24 17:07:47,254 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:07:47,255 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:07:47,256 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:07:47,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:07:47,262 INFO L82 PathProgramCache]: Analyzing trace with hash 19454853, now seen corresponding path program 1 times [2020-09-24 17:07:47,272 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:07:47,272 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [675098282] [2020-09-24 17:07:47,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:07:47,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:47,535 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:48,319 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:49,362 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:49,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-09-24 17:07:49,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-24 17:07:49,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1884 [2020-09-24 17:07:49,368 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:49,368 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 17:07:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 9 [2020-09-24 17:07:49,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-09-24 17:07:49,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-24 17:07:49,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:07:49,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:49,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:49,827 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:49,827 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:07:49,828 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:49,828 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 55 [2020-09-24 17:07:49,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:49,829 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 3 [2020-09-24 17:07:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:07:49,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 17:07:49,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:07:49,893 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 17:07:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:49,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:49,937 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:49,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:07:49,939 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:49,939 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-09-24 17:07:49,940 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:49,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-24 17:07:49,941 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-24 17:07:49,942 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-09-24 17:07:49,942 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-24 17:07:50,365 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 17:07:50,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [675098282] [2020-09-24 17:07:50,370 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:07:50,370 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-24 17:07:50,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [457394193] [2020-09-24 17:07:50,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-24 17:07:50,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:07:50,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-24 17:07:50,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-09-24 17:07:50,406 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 15 states. [2020-09-24 17:07:50,968 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-09-24 17:07:51,107 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2020-09-24 17:07:51,266 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2020-09-24 17:07:51,458 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2020-09-24 17:07:51,634 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-09-24 17:07:51,784 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2020-09-24 17:07:51,932 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2020-09-24 17:07:52,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:07:52,064 INFO L93 Difference]: Finished difference Result 69 states and 70 transitions. [2020-09-24 17:07:52,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-24 17:07:52,067 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2020-09-24 17:07:52,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:07:52,080 INFO L225 Difference]: With dead ends: 69 [2020-09-24 17:07:52,081 INFO L226 Difference]: Without dead ends: 44 [2020-09-24 17:07:52,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=239, Invalid=631, Unknown=0, NotChecked=0, Total=870 [2020-09-24 17:07:52,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-09-24 17:07:52,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-09-24 17:07:52,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-09-24 17:07:52,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 43 transitions. [2020-09-24 17:07:52,138 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 43 transitions. Word has length 42 [2020-09-24 17:07:52,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:07:52,139 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 43 transitions. [2020-09-24 17:07:52,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-24 17:07:52,139 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 43 transitions. [2020-09-24 17:07:52,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-09-24 17:07:52,141 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 17:07:52,141 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-24 17:07:52,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 17:07:52,143 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 17:07:52,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 17:07:52,145 INFO L82 PathProgramCache]: Analyzing trace with hash 1202217324, now seen corresponding path program 1 times [2020-09-24 17:07:52,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 17:07:52,146 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1347655571] [2020-09-24 17:07:52,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 17:07:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:52,204 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:52,351 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:52,351 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-09-24 17:07:52,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:52,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-09-24 17:07:52,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-24 17:07:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-24 17:07:52,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:07:52,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 17:07:52,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 17:07:52,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:52,432 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:52,446 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:52,446 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-09-24 17:07:52,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:52,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-09-24 17:07:52,447 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:52,447 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 17:07:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:07:52,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 17:07:52,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:07:52,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-09-24 17:07:52,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 17:07:52,471 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 17:07:52,488 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 17:07:52,489 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-09-24 17:07:52,489 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 17:07:52,490 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-24 17:07:52,490 FATAL L256 erpolLogProxyWrapper]: Heuristic: RANDOM [2020-09-24 17:07:52,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 17:07:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 17:07:52,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-09-24 17:07:52,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 17:07:52,503 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 17:07:52,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1347655571] [2020-09-24 17:07:52,504 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 17:07:52,505 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-24 17:07:52,505 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057113915] [2020-09-24 17:07:52,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-24 17:07:52,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 17:07:52,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-24 17:07:52,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-09-24 17:07:52,509 INFO L87 Difference]: Start difference. First operand 44 states and 43 transitions. Second operand 7 states. [2020-09-24 17:07:52,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 17:07:52,687 INFO L93 Difference]: Finished difference Result 44 states and 43 transitions. [2020-09-24 17:07:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-24 17:07:52,687 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 43 [2020-09-24 17:07:52,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 17:07:52,688 INFO L225 Difference]: With dead ends: 44 [2020-09-24 17:07:52,689 INFO L226 Difference]: Without dead ends: 0 [2020-09-24 17:07:52,691 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2020-09-24 17:07:52,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-24 17:07:52,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-24 17:07:52,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-24 17:07:52,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-24 17:07:52,692 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 43 [2020-09-24 17:07:52,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 17:07:52,693 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-24 17:07:52,693 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-24 17:07:52,693 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-24 17:07:52,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-24 17:07:52,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 17:07:52,698 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-24 17:07:53,101 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 37 [2020-09-24 17:07:53,112 INFO L268 CegarLoopResult]: For program point L4-3(line 4) no Hoare annotation was computed. [2020-09-24 17:07:53,113 INFO L268 CegarLoopResult]: For program point L4-4(line 4) no Hoare annotation was computed. [2020-09-24 17:07:53,113 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-09-24 17:07:53,114 INFO L268 CegarLoopResult]: For program point L-1-1(line -1) no Hoare annotation was computed. [2020-09-24 17:07:53,114 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:07:53,114 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~p2~0.base |old(~p2~0.base)|) (= |~#b~0.offset| |old(~#b~0.offset)|) (= |old(#length)| |#length|) (= |~#a~0.offset| |old(~#a~0.offset)|) (= ~p2~0.offset |old(~p2~0.offset)|) (= |~#b~0.base| |old(~#b~0.base)|) (= |#NULL.base| |old(#NULL.base)|) (= ~p1~0.offset |old(~p1~0.offset)|) (= ~p1~0.base |old(~p1~0.base)|) (= |~#a~0.base| |old(~#a~0.base)|) (= |#NULL.offset| |old(#NULL.offset)|) (= |old(#valid)| |#valid|)) [2020-09-24 17:07:53,115 INFO L268 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2020-09-24 17:07:53,115 INFO L268 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-09-24 17:07:53,115 INFO L268 CegarLoopResult]: For program point L4-1(line 4) no Hoare annotation was computed. [2020-09-24 17:07:53,115 INFO L268 CegarLoopResult]: For program point L4-2(line 4) no Hoare annotation was computed. [2020-09-24 17:07:53,115 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:07:53,116 INFO L268 CegarLoopResult]: For program point fFINAL(lines 7 15) no Hoare annotation was computed. [2020-09-24 17:07:53,116 INFO L268 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2020-09-24 17:07:53,118 INFO L268 CegarLoopResult]: For program point L11(line 11) no Hoare annotation was computed. [2020-09-24 17:07:53,118 INFO L268 CegarLoopResult]: For program point L10(line 10) no Hoare annotation was computed. [2020-09-24 17:07:53,119 INFO L268 CegarLoopResult]: For program point L9(lines 9 14) no Hoare annotation was computed. [2020-09-24 17:07:53,119 INFO L268 CegarLoopResult]: For program point L8(line 8) no Hoare annotation was computed. [2020-09-24 17:07:53,119 INFO L268 CegarLoopResult]: For program point fEXIT(lines 7 15) no Hoare annotation was computed. [2020-09-24 17:07:53,120 INFO L268 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-09-24 17:07:53,120 INFO L268 CegarLoopResult]: For program point L8-2(line 8) no Hoare annotation was computed. [2020-09-24 17:07:53,120 INFO L264 CegarLoopResult]: At program point fENTRY(lines 7 15) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (not (= |old(~p1~0.offset)| |~#a~0.offset|)) (not (= ~p2~0.offset |~#b~0.offset|)) (not (= |old(~p1~0.base)| |~#a~0.base|)) (not (= |~#b~0.base| ~p2~0.base)) (and (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|) (not (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1))) [2020-09-24 17:07:53,121 INFO L268 CegarLoopResult]: For program point L8-3(line 8) no Hoare annotation was computed. [2020-09-24 17:07:53,121 INFO L268 CegarLoopResult]: For program point L8-4(line 8) no Hoare annotation was computed. [2020-09-24 17:07:53,121 INFO L268 CegarLoopResult]: For program point L8-5(line 8) no Hoare annotation was computed. [2020-09-24 17:07:53,121 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-24 17:07:53,122 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= (select |#valid| |~#a~0.base|) 1) (not (= |~#b~0.base| |~#a~0.base|))) [2020-09-24 17:07:53,122 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-24 17:07:53,122 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-24 17:07:53,122 INFO L268 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-09-24 17:07:53,123 INFO L268 CegarLoopResult]: For program point L31-1(line 31) no Hoare annotation was computed. [2020-09-24 17:07:53,123 INFO L268 CegarLoopResult]: For program point L29(line 29) no Hoare annotation was computed. [2020-09-24 17:07:53,123 INFO L268 CegarLoopResult]: For program point L31-2(line 31) no Hoare annotation was computed. [2020-09-24 17:07:53,123 INFO L268 CegarLoopResult]: For program point L29-1(line 29) no Hoare annotation was computed. [2020-09-24 17:07:53,124 INFO L264 CegarLoopResult]: At program point L27(line 27) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.offset |~#b~0.offset|) (= |~#a~0.base| ~p1~0.base) (= |~#b~0.base| ~p2~0.base) (= (select (select (store |#memory_int| |~#a~0.base| (store (select |#memory_int| |~#a~0.base|) |~#a~0.offset| 5)) ~p2~0.base) ~p2~0.offset) 1) (= ~p1~0.offset |~#a~0.offset|)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-24 17:07:53,124 INFO L268 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-09-24 17:07:53,124 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-24 17:07:53,124 INFO L268 CegarLoopResult]: For program point L27-2(line 27) no Hoare annotation was computed. [2020-09-24 17:07:53,125 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 17 39) no Hoare annotation was computed. [2020-09-24 17:07:53,125 INFO L268 CegarLoopResult]: For program point L25-1(line 25) no Hoare annotation was computed. [2020-09-24 17:07:53,125 INFO L268 CegarLoopResult]: For program point L27-3(line 27) no Hoare annotation was computed. [2020-09-24 17:07:53,125 INFO L268 CegarLoopResult]: For program point L23(line 23) no Hoare annotation was computed. [2020-09-24 17:07:53,125 INFO L268 CegarLoopResult]: For program point L25-2(line 25) no Hoare annotation was computed. [2020-09-24 17:07:53,126 INFO L268 CegarLoopResult]: For program point L25-3(line 25) no Hoare annotation was computed. [2020-09-24 17:07:53,126 INFO L268 CegarLoopResult]: For program point mainFINAL(lines 17 39) no Hoare annotation was computed. [2020-09-24 17:07:53,126 INFO L268 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-09-24 17:07:53,126 INFO L264 CegarLoopResult]: At program point L32(lines 17 39) the Hoare annotation is: (or (= |~#a~0.base| |~#b~0.base|) (not (= (select |#valid| |~#a~0.base|) 1))) [2020-09-24 17:07:53,127 INFO L268 CegarLoopResult]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 37) no Hoare annotation was computed. [2020-09-24 17:07:53,127 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 17 39) the Hoare annotation is: (or (not (= (select |#valid| |~#a~0.base|) 1)) (and (= ~p2~0.base |old(~p2~0.base)|) (= |old(~p2~0.offset)| ~p2~0.offset) (= |old(~p1~0.offset)| ~p1~0.offset) (= |old(~p1~0.base)| ~p1~0.base)) (= |~#b~0.base| |~#a~0.base|)) [2020-09-24 17:07:53,128 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-24 17:07:53,128 INFO L268 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-09-24 17:07:53,128 INFO L268 CegarLoopResult]: For program point L20(line 20) no Hoare annotation was computed. [2020-09-24 17:07:53,128 INFO L268 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-09-24 17:07:53,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 05:07:53 BoogieIcfgContainer [2020-09-24 17:07:53,166 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 17:07:53,173 INFO L168 Benchmark]: Toolchain (without parser) took 6910.18 ms. Allocated memory was 139.5 MB in the beginning and 282.6 MB in the end (delta: 143.1 MB). Free memory was 103.1 MB in the beginning and 165.5 MB in the end (delta: -62.4 MB). Peak memory consumption was 80.7 MB. Max. memory is 7.1 GB. [2020-09-24 17:07:53,175 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-09-24 17:07:53,177 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.89 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 92.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. [2020-09-24 17:07:53,179 INFO L168 Benchmark]: Boogie Preprocessor took 117.86 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 92.7 MB in the beginning and 181.5 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. [2020-09-24 17:07:53,181 INFO L168 Benchmark]: RCFGBuilder took 421.08 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 164.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. [2020-09-24 17:07:53,185 INFO L168 Benchmark]: TraceAbstraction took 6043.34 ms. Allocated memory was 203.4 MB in the beginning and 282.6 MB in the end (delta: 79.2 MB). Free memory was 163.3 MB in the beginning and 165.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. [2020-09-24 17:07:53,202 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 317.89 ms. Allocated memory is still 139.5 MB. Free memory was 102.5 MB in the beginning and 92.7 MB in the end (delta: 9.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 117.86 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 92.7 MB in the beginning and 181.5 MB in the end (delta: -88.7 MB). Peak memory consumption was 12.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 421.08 ms. Allocated memory is still 203.4 MB. Free memory was 181.5 MB in the beginning and 164.0 MB in the end (delta: 17.5 MB). Peak memory consumption was 17.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6043.34 ms. Allocated memory was 203.4 MB in the beginning and 282.6 MB in the end (delta: 79.2 MB). Free memory was 163.3 MB in the beginning and 165.5 MB in the end (delta: -2.2 MB). Peak memory consumption was 76.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 37]: 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: 17]: Loop Invariant Derived loop invariant: a == b || !(\valid[a] == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 64 SDtfs, 144 SDslu, 242 SDs, 0 SdLazy, 298 SolverSat, 36 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52occurred 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, 7 PreInvPairs, 7 NumberOfFragments, 168 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 129 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 3.1s InterpolantComputationTime, 85 NumberOfCodeBlocks, 85 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 83 ConstructedInterpolants, 0 QuantifiedInterpolants, 25021 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...